US2583304A - Dust hood - Google Patents
Dust hood Download PDFInfo
- Publication number
- US2583304A US2583304A US166333A US16633350A US2583304A US 2583304 A US2583304 A US 2583304A US 166333 A US166333 A US 166333A US 16633350 A US16633350 A US 16633350A US 2583304 A US2583304 A US 2583304A
- Authority
- US
- United States
- Prior art keywords
- respirator
- frame member
- window
- dust
- dust hood
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000428 dust Substances 0.000 title description 17
- 210000003739 neck Anatomy 0.000 description 10
- 230000008093 supporting effect Effects 0.000 description 4
- 210000003414 extremity Anatomy 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 210000001364 upper extremity Anatomy 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B17/00—Protective clothing affording protection against heat or harmful chemical agents or for use at high altitudes
- A62B17/04—Hoods
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S2/00—Apparel
- Y10S2/901—Antibacterial, antitoxin, or clean room
Definitions
- This invention relates to a dust hood such'as used forprotecting personnel against heavy con-' centrations of dust, including pneumoconiosisproducing dusts, and, more particularly, to a respirator mounting means for detachably supporting a respirator on the window of the dust hood.
- a common expedient for the mounting of a respirator on the window of a dust hood is to puncture a hole through the transparent plastic window, collapse the respirator, and thereafter force it through the hole until the neck portion of the respirator coincides with the hole in the window.
- This expedient is unsatisfactory, particularly for respirators with large face pieces or relatively small. neck portions, since forcing of the respirator into place generally causes tearing of the peripheral portion of the hole in the plastic window, thereby causing leakage of dust therethrough.
- An object of the present invention is to provide a novel means for detachably mounting a respirator on the window of 'a dust hood which is devoid of the above named disadvantages.
- 'A more specific object -of the present invention is to provide mounting means for easily and quickly mounting, in a readily detachable manner, a respirator in the window of a dust hood, which mounting means will snugly embrace the respirator in asubstantially dust-free manner, and which allows removal or replacement of the respirator without damage to the window.
- I Fig. 1 is a front, elevational view of a dust hood having, in its window, a respirator mounting means embodying the principles of the present invention
- Fig. 2 is a cross-sectional view taken along line 11-11 of Fig. 1;
- Figure 3 is a plan view of a frame member for clampingly supporting the respirator as shown in Figures 1 and 2.
- Figure 4 is a plan view of the window shown in Figures 1 and 2.
- Figure 5 is a plan view, with parts shown broken away, of a modified form of frame member slightly different from that shown in Figure 3.
- Figure 6 is a fragmentary plan view of further modified form of frame member, and,
- Figure 7 is a plan view of a differently shaped window showing a still further modified form of frame member.
- numeral I denotes a dust hood of canvas or other suitable fabric or material having, at the front thereof, an opening of polygonal shape along the perimeter of which is sewn a strip 2 of similar material.
- the outer perimetrical edge of strip 2 -with'the exception of the top horizontal portion, is sewn to the hood and overlies a marginal portion 3 of the hood, thereby providing a pocket.
- a flap 4 is sewn along its top edge portion over the marginal portion 3 and is detachably fastened to the frame member by snap fastene elements 5.
- a window supporting, frame member 6 preferably of hard fibrous material and having two somewhat U shaped portions 6a and 6b whose extremities are detachably fastened together by male and female snap fastening elements I. Portions 6a and 6b are pivotally mounted together at pivot 8 so as to'enable opening of the frame member when the fastener elements are detached. Extensions or jawlike arms 10 and II are integrally formed on portions of 6b and 6a, respectively. The upper extremities 5 of arms In and II overlap slightly.
- the opening defined by extensions 10 and H corresponds, in shape, to the intermediate neck portion of the respirator, of smallest cross section.
- the respirator may be of any well-known type such as one, including a face piece to snugly fit the face of the wearer, and a perforated cover l2 screw threaded to a filter containing cup l3 enclosing a filter of any well-known type, such as a hollow filter witha disc attached thereto whose marginal edge portion is sealingly held in place by the cover l2.
- the respirator may also include an exhalation valve [4. It should be noted, however, that other types of respirators having differently shaped necks may be similarly mounted in which case, 'of course, the shape of the opening defined by extensions Ill and II would be somewhat different.
- Frame member 6 is provided with a plurality of snap fastener elements I5 which are adapted to be fastened to corresponding snap fastener elements5 provided on flap 4.
- the top horizontal portion of strip 2 which extends underneath flap 4 has, in alternate positions, snap fastener elements and. holes so that certain of the fastener elements of .the flap are attachable to corresponding ones of the strip portion while others extend through the holes in the top strip portion so as to be attachable to 3 the corresponding fastener elements IS on the frame member 6.
- the frame member is detachably secured to the flap 4 and at the same time the flap is detachably secured to the top horizontal portion of strip 2.
- a window I6 illustrated in Figure 4 and preferably made of transparent plastic material is slidable intothe pocket behind the" frame mem ber 6 as shown more clearly in Figure 2
- Win dow I6 has a cut-out portion l6a in registry with the opening defined by extensions I and ll.
- Figure 5 shows a modification of the frame member shown in Figure 3 wherein such member, instead of comprising two pivotally mounted portions which form a polygon is in the form of a single piece of polygonal shape having fastener elements [5.
- the integral arm I0 is the same as that shown in Figure 3, however, the complementary arm- I1, instead of being integral with the frame member is pivotally 'mourited thereto at pivot l8 and is detachably secured to the extremity of the arm it] by snap fasteners elements l9.
- snap fastener elements l9 are detached and arm H is swung outwardly to the position shown in dash and dot lines.
- Figure 6 shows a still further modification of the frame member wherein the jaw-like arms 20 and 2 I are pivotally mounted at pivots 22 and 23, respectively, on the frame member and are detachably secured together by male and female snap fastener elements 24.
- fastener elements 24' are detached and arms 28 and 2
- Figure 7 shows a modification of the window and frame member wherein the periphery of the frame member 25 may be sewn to the hole-defining, edge portion of the front opening of the hood and wherein the frame member 25 may be some what elliptical, having an armor extension 25b pivotally mounted at pivot 25 and having pairs of fastener elements 21 and 28 for attaching the arms together to form a substantially dust-tight closure element for the respirator.
- the dash and dot lines show the position to which arin 251) can be swung after the fastener elements are detached in order to permit insertion of the respirator;
- an efiicient dust hood including a readily detachable respirator mounting which permits the mounting of a respirator in the window of the dust'hood in a dust-tight manner and which will allow easy and quick replacement of the respira
- the respirator is introduced between tor or removal thereof, in which latter event a window without a notched out portion 6a may be inserted.
- a dust hood having a front opening, a strip whose outer edge is sewed about a substantial portiorr of said opening to provide a pocket, a window having a shape corresponding to said opening an'd which is insertible in said pocket, said window having a cut-out portion at the lower central edge portion thereof, a polygonally shaped frame member comprising two portions pivotally mounted together and having detachable fastening means thereon for attaching their extremities together and having, integraL; jawlike arm portions defining an opening therebetween. for snugly embracing an intermediate neck portion of a respirator, thereby support-' ing the respirator within said cut-out portion in a substantially dust-tight manner.
- a dust hood having a front opening, a frame member detachably secured in registry with said opening and including a pair of jaw-like extensions, of substantially semi-circular shape so that the extensions define therebetweena substantially round hole for snugly embracing a' portion of the neck of a respirator to be mounted therein, and a window having a notched-out portion in registry with said hole defined by said exten-- sions and in which said respirator is supported, said frame member comprisin two pivotally connected parts whereby said extensions may be moved apart to facilitate introduction of the res pirator' therebetween.
- a dust hood having a front opening, a frame member having a shapec'orresponding to that of said opening and held in registry therewith, said frame member including an extension adapted to snugly embrace a portion of anintermediate neck of a respirator so as to support the respiratorni a substantially dust-tight man ner, a window having a shape corresponding to that of said opening and superimposed on said frame member; said window having a notch registerin with said neck of the respirator, and detachable fastening means on said frame memher for holding said extension in the respiratorembracing position and, when detached, allow ing enlargement of the respirator neck support-- ing opening defined partially by said extension to facilitate introduction or removal of the respirator within the frame member and for providing a substantially dust-tight joint with the respirator.
Description
G. J. PIPHER Jan. 22, 1952 DUST HOOD Filed June 6, 1950 INVENTOR. GEORGE J. PIPHEE. BY
Patented Jan. 22, 1952 1 t;-
DUST noon George J. Pipher, Reading, Pa., assignor to Willson Products, 1110., Reading, Pa., a corporation of Pennsylvania Application June 6, 1950, Serial No. 166,333
This invention relates to a dust hood such'as used forprotecting personnel against heavy con-' centrations of dust, including pneumoconiosisproducing dusts, and, more particularly, to a respirator mounting means for detachably supporting a respirator on the window of the dust hood.
A common expedient for the mounting of a respirator on the window of a dust hood is to puncture a hole through the transparent plastic window, collapse the respirator, and thereafter force it through the hole until the neck portion of the respirator coincides with the hole in the window. This expedient is unsatisfactory, particularly for respirators with large face pieces or relatively small. neck portions, since forcing of the respirator into place generally causes tearing of the peripheral portion of the hole in the plastic window, thereby causing leakage of dust therethrough.
An object of the present invention is to provide a novel means for detachably mounting a respirator on the window of 'a dust hood which is devoid of the above named disadvantages.
'A more specific object -of the present invention is to provide mounting means for easily and quickly mounting, in a readily detachable manner, a respirator in the window of a dust hood, which mounting means will snugly embrace the respirator in asubstantially dust-free manner, and which allows removal or replacement of the respirator without damage to the window.
Other objects and advantages of the present invention will be apparent from a study of the following description, taken with the accompanying drawing wherein:
I Fig. 1 is a front, elevational view of a dust hood having, in its window, a respirator mounting means embodying the principles of the present invention; t
Fig. 2 is a cross-sectional view taken along line 11-11 of Fig. 1;
Figure 3 is a plan view of a frame member for clampingly supporting the respirator as shown in Figures 1 and 2.
Figure 4 is a plan view of the window shown in Figures 1 and 2.
Figure 5 is a plan view, with parts shown broken away, of a modified form of frame member slightly different from that shown in Figure 3.
Figure 6, is a fragmentary plan view of further modified form of frame member, and,
Figure 7 is a plan view of a differently shaped window showing a still further modified form of frame member.
s e. (Cl. 128-141) Referring more particularly to Figures 1 and 2, numeral I denotes a dust hood of canvas or other suitable fabric or material having, at the front thereof, an opening of polygonal shape along the perimeter of which is sewn a strip 2 of similar material. The outer perimetrical edge of strip 2, -with'the exception of the top horizontal portion, is sewn to the hood and overlies a marginal portion 3 of the hood, thereby providing a pocket. A flap 4 is sewn along its top edge portion over the marginal portion 3 and is detachably fastened to the frame member by snap fastene elements 5.
Into the pocket described "above there is inserted a window supporting, frame member 6, preferably of hard fibrous material and having two somewhat U shaped portions 6a and 6b whose extremities are detachably fastened together by male and female snap fastening elements I. Portions 6a and 6b are pivotally mounted together at pivot 8 so as to'enable opening of the frame member when the fastener elements are detached. Extensions or jawlike arms 10 and II are integrally formed on portions of 6b and 6a, respectively. The upper extremities 5 of arms In and II overlap slightly. The opening defined by extensions 10 and H corresponds, in shape, to the intermediate neck portion of the respirator, of smallest cross section.
The respirator may be of any well-known type such as one, including a face piece to snugly fit the face of the wearer, and a perforated cover l2 screw threaded to a filter containing cup l3 enclosing a filter of any well-known type, such as a hollow filter witha disc attached thereto whose marginal edge portion is sealingly held in place by the cover l2. The respirator may also include an exhalation valve [4. It should be noted, however, that other types of respirators having differently shaped necks may be similarly mounted in which case, 'of course, the shape of the opening defined by extensions Ill and II would be somewhat different.
Frame member 6 is provided with a plurality of snap fastener elements I5 which are adapted to be fastened to corresponding snap fastener elements5 provided on flap 4. It will be noted that the top horizontal portion of strip 2 which extends underneath flap 4 has, in alternate positions, snap fastener elements and. holes so that certain of the fastener elements of .the flap are attachable to corresponding ones of the strip portion while others extend through the holes in the top strip portion so as to be attachable to 3 the corresponding fastener elements IS on the frame member 6. Thus the frame member is detachably secured to the flap 4 and at the same time the flap is detachably secured to the top horizontal portion of strip 2.
A window I6, illustrated in Figure 4 and preferably made of transparent plastic material is slidable intothe pocket behind the" frame mem ber 6 as shown more clearly in Figure 2 Win dow I6 has a cut-out portion l6a in registry with the opening defined by extensions I and ll.
In operation, when it is desired to mount the respirator on frame member 6, snap fastener elements 1 are detached andframe member portion 611 and 6b are spread apart about their common pivot 8 so as to permit insertion of the respirator between the jaw like extensions Ill and II. the jaw-like arms It and II while frame member 6 is opened and partially inserted in the pocket defined by strip '2 and marginal portion 3. Portions 6a and 6b are then brought together with extensions i0 and H clainpingly engaging the neck portion of the respirator in a snug, substantially dust-tight manner. The snap fastener elements 7 are then secured together. Window i6 is then inserted behind the frame member and the top flap 4 is fastened to the top portion of strip 2 as well as to the fastener elements on the frame member 6.
Figure 5 shows a modification of the frame member shown in Figure 3 wherein such member, instead of comprising two pivotally mounted portions which form a polygon is in the form of a single piece of polygonal shape having fastener elements [5. The integral arm I0 is the same as that shown in Figure 3, however, the complementary arm- I1, instead of being integral with the frame member is pivotally 'mourited thereto at pivot l8 and is detachably secured to the extremity of the arm it] by snap fasteners elements l9. In order to insert the respirator, snap fastener elements l9 are detached and arm H is swung outwardly to the position shown in dash and dot lines. Figure 6 shows a still further modification of the frame member wherein the jaw-like arms 20 and 2 I are pivotally mounted at pivots 22 and 23, respectively, on the frame member and are detachably secured together by male and female snap fastener elements 24. In order to insert the respirator, fastener elements 24' are detached and arms 28 and 2| are pivotally swung outwardly to the dot and dash line positions.
Figure 7 shows a modification of the window and frame member wherein the periphery of the frame member 25 may be sewn to the hole-defining, edge portion of the front opening of the hood and wherein the frame member 25 may be some what elliptical, having an armor extension 25b pivotally mounted at pivot 25 and having pairs of fastener elements 21 and 28 for attaching the arms together to form a substantially dust-tight closure element for the respirator. The dash and dot lines show the position to which arin 251) can be swung after the fastener elements are detached in order to permit insertion of the respirator;
Thus, it will be seen that I have provided an efiicient dust hood including a readily detachable respirator mounting which permits the mounting of a respirator in the window of the dust'hood in a dust-tight manner and which will allow easy and quick replacement of the respira The respirator is introduced between tor or removal thereof, in which latter event a window without a notched out portion 6a may be inserted.
While I have illustrated and described certain specific embodiments of my invention, it will be apparent that these are by way of illustration only, and that various changes and modificatime may be made within the contemplation of my invention and within the scope of the following claims.
I claim:
1. A dust hood having a front opening, a strip whose outer edge is sewed about a substantial portiorr of said opening to provide a pocket, a window having a shape corresponding to said opening an'd which is insertible in said pocket, said window having a cut-out portion at the lower central edge portion thereof, a polygonally shaped frame member comprising two portions pivotally mounted together and having detachable fastening means thereon for attaching their extremities together and having, integraL; jawlike arm portions defining an opening therebetween. for snugly embracing an intermediate neck portion of a respirator, thereby support-' ing the respirator within said cut-out portion in a substantially dust-tight manner.
2. A dust hood having a front opening, a frame member detachably secured in registry with said opening and including a pair of jaw-like extensions, of substantially semi-circular shape so that the extensions define therebetweena substantially round hole for snugly embracing a' portion of the neck of a respirator to be mounted therein, and a window having a notched-out portion in registry with said hole defined by said exten-- sions and in which said respirator is supported, said frame member comprisin two pivotally connected parts whereby said extensions may be moved apart to facilitate introduction of the res pirator' therebetween.
3. A dust hood having a front opening, a frame member having a shapec'orresponding to that of said opening and held in registry therewith, said frame member including an extension adapted to snugly embrace a portion of anintermediate neck of a respirator so as to support the respiratorni a substantially dust-tight man ner, a window having a shape corresponding to that of said opening and superimposed on said frame member; said window having a notch registerin with said neck of the respirator, and detachable fastening means on said frame memher for holding said extension in the respiratorembracing position and, when detached, allow ing enlargement of the respirator neck support-- ing opening defined partially by said extension to facilitate introduction or removal of the respirator within the frame member and for providing a substantially dust-tight joint with the respirator.
GEORGE J PIPHER.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 2,462,905 Schauweker Feb; 15, 1949' 2,537,265 Gemunden Jan. 9, 1951
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US166333A US2583304A (en) | 1950-06-06 | 1950-06-06 | Dust hood |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US166333A US2583304A (en) | 1950-06-06 | 1950-06-06 | Dust hood |
Publications (1)
Publication Number | Publication Date |
---|---|
US2583304A true US2583304A (en) | 1952-01-22 |
Family
ID=22602821
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US166333A Expired - Lifetime US2583304A (en) | 1950-06-06 | 1950-06-06 | Dust hood |
Country Status (1)
Country | Link |
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US (1) | US2583304A (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2895138A (en) * | 1956-02-03 | 1959-07-21 | American Optical Corp | Means and method for forming goggles or the like |
US3232290A (en) * | 1963-02-08 | 1966-02-01 | Theodore R Nicolai | Welding helmet |
US4080664A (en) * | 1976-01-09 | 1978-03-28 | Louis Morris | Welder's hood with air filter |
US4114198A (en) * | 1977-03-25 | 1978-09-19 | Sands Jessie E | Welder's helmet lens |
US4266301A (en) * | 1979-12-05 | 1981-05-12 | The United States Of America As Represented By The Secretary Of The Air Force | Chemical-biological agent protective hood |
DE2948423A1 (en) * | 1979-12-01 | 1981-06-04 | Drägerwerk AG, 2400 Lübeck | ESCAPE FILTER DEVICE WITH PROTECTIVE COVER |
EP0054154A1 (en) * | 1980-12-16 | 1982-06-23 | Auergesellschaft Gmbh | Breath protection hood, especially for emergency evacuations |
US4382440A (en) * | 1981-03-18 | 1983-05-10 | Kapp Nancy J | Smoke and pollutant filtering device |
US4577348A (en) * | 1982-08-11 | 1986-03-25 | Auergesellschaft Gmbh | Gas-tight protective garment with hood |
US4583535A (en) * | 1980-08-07 | 1986-04-22 | Saffo John J | Protection mask |
US5562092A (en) * | 1993-06-14 | 1996-10-08 | George; Eric W. | Firefighter's emergency smoke filter |
US6694971B2 (en) * | 2001-08-25 | 2004-02-24 | Guy Daniel Schroeder | Face mask |
EP2823859A1 (en) * | 2013-07-08 | 2015-01-14 | Scaldis St-Martin | Head protective hood |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2462005A (en) * | 1947-09-27 | 1949-02-15 | American Optical Corp | Face shield for use with respirators |
US2537265A (en) * | 1946-05-20 | 1951-01-09 | George A Gemunden | Face mask |
-
1950
- 1950-06-06 US US166333A patent/US2583304A/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2537265A (en) * | 1946-05-20 | 1951-01-09 | George A Gemunden | Face mask |
US2462005A (en) * | 1947-09-27 | 1949-02-15 | American Optical Corp | Face shield for use with respirators |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2895138A (en) * | 1956-02-03 | 1959-07-21 | American Optical Corp | Means and method for forming goggles or the like |
US3232290A (en) * | 1963-02-08 | 1966-02-01 | Theodore R Nicolai | Welding helmet |
US4080664A (en) * | 1976-01-09 | 1978-03-28 | Louis Morris | Welder's hood with air filter |
US4114198A (en) * | 1977-03-25 | 1978-09-19 | Sands Jessie E | Welder's helmet lens |
DE2948423A1 (en) * | 1979-12-01 | 1981-06-04 | Drägerwerk AG, 2400 Lübeck | ESCAPE FILTER DEVICE WITH PROTECTIVE COVER |
US4266301A (en) * | 1979-12-05 | 1981-05-12 | The United States Of America As Represented By The Secretary Of The Air Force | Chemical-biological agent protective hood |
US4583535A (en) * | 1980-08-07 | 1986-04-22 | Saffo John J | Protection mask |
EP0054154A1 (en) * | 1980-12-16 | 1982-06-23 | Auergesellschaft Gmbh | Breath protection hood, especially for emergency evacuations |
US4382440A (en) * | 1981-03-18 | 1983-05-10 | Kapp Nancy J | Smoke and pollutant filtering device |
US4577348A (en) * | 1982-08-11 | 1986-03-25 | Auergesellschaft Gmbh | Gas-tight protective garment with hood |
US5562092A (en) * | 1993-06-14 | 1996-10-08 | George; Eric W. | Firefighter's emergency smoke filter |
US6694971B2 (en) * | 2001-08-25 | 2004-02-24 | Guy Daniel Schroeder | Face mask |
EP2823859A1 (en) * | 2013-07-08 | 2015-01-14 | Scaldis St-Martin | Head protective hood |
WO2015003916A1 (en) * | 2013-07-08 | 2015-01-15 | Scaldis St-Martin | Balaclava for head protection |
CN105407977A (en) * | 2013-07-08 | 2016-03-16 | 斯卡尔迪斯圣马丁公司 | Balaclava for head protection |
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