US1935690A - Duct joint construction - Google Patents
Duct joint construction Download PDFInfo
- Publication number
- US1935690A US1935690A US620777A US62077732A US1935690A US 1935690 A US1935690 A US 1935690A US 620777 A US620777 A US 620777A US 62077732 A US62077732 A US 62077732A US 1935690 A US1935690 A US 1935690A
- Authority
- US
- United States
- Prior art keywords
- duct
- folds
- sections
- cleat
- ducts
- 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
- 238000010276 construction Methods 0.000 title description 3
- 239000002184 metal Substances 0.000 description 11
- 230000003014 reinforcing effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/12—Flanged joints specially adapted for particular pipes
- F16L23/14—Flanged joints specially adapted for particular pipes for rectangular pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/0209—Ducting arrangements characterised by their connecting means, e.g. flanges
-
- 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
- Y10S138/00—Pipes and tubular conduits
- Y10S138/04—Air conditioning
Definitions
- Thisinvention relates to jointsfor metal ducts.
- One of the requirements in the use of metal ducts is that the forming of the joints between sections of ducts be very inexpensive yet'fullyeifec'tiveito 6 prevent air leakage and to form rigid and stable structures.
- This invention aims to provide means for forming joints of ducts which will meet the above requirements and which are more rigidly constructed and more easily and tightly sealed than has heretofore been possible.
- Fig. 1 is a perspective of one of the employed in the joint
- Fig. 2 is a perspective of another element in the joint
- FIG. 3 is a perspective showing adjoining ends of two sections of ducts which are ready for being joined in accordance with this invention
- Fig. 4 is a top plan view of the two sections after being joined
- Fig. 5 is a central vertical section on a plane passing through the line 55 of Fig. 4, while Fig. 6 is an end view of a modified form of cleat.
- Fig. 3 is a central vertical section on a plane passing through the line 55 of Fig. 4
- Fig. 6 is an end view of a modified form of cleat.
- the ends of the two sections of ducts 1 and 2 will be prepared as shown in Fig. 3 with the sides cut back and curled back as illustrated to form the curved outwardly extending flanges 3.
- a cleat and 5 generally indicated by the numeral 4 is then placed between the opposite ends 5 and 6 of the duct sections and another similar cleat between the opposite ends '7 and 8 at the bottom of the two duct sections.
- the horizontal portion of 0 each cleat is formed to produce the folds 9, 11,
- a locking cleat of this character is used on each vertical side of the duct.
- the reinforcing rib 13 being on the outside of the joined sections of. duct adds greatly to the rigidity of the structure and prevents the outside fold of the cleat from being warped away from the adjoining duct surfaces.
- joints formed in accord ance with this invention have a high degree of rigidity, can be assembled most economically and speedily and do not come part or become less effective during prolonged use.
- the material should be somewhat resilient or compressible.
- a rolled or tubular reinforcing member 19 is provided instead of employing the flat doubled reinforcing rib 13, a rolled or tubular reinforcing member 19 is provided.
- V A joint for metal duct sections comprising a sheet metal body folded to form three folds between two of which oneend of a duct section is insertable and between the next two of which the end of the adjoining duct section is insertable, projections on the two duct sections, and detachable means engaging said projections for holding said duct section ends locked between said folds.
- a sheet metal body formed into three superposed folds, the middle and one outside fold forming a groove to receive the end of one duct section while the middle and other outside fold 11o are formed to receive the end of an adjoining duct section, projections on said duct sections,
- a joint for metal ducts comprising a sheet metal strip folded to form'three superposed folds, the middle and one outside fold being constructed to receive an end of a duct section, the middle andother outside fold being adapted to receive the end of another adjacent duct section in overlapped relation to the first said end, yieldable means in the bottoms of said folds for engaga ing the duct ends, projections on said ducts, and means engaging said projections for urging said duct sections toward each other within said folds against said yieldable means.
- a joint for metal ducts comprising a sheet metal strip folded to form three superposed folds, the middle and one outside fold being constructed to receive an end of a duct section, the middle and other outside fold being adapted to receive the end of another adjacent duct section in overlapped relation to the firstsaid end, lock engaging means on the duct sections, and locking means cooperating with said lock engaging means for drawing the sections toward each other and for locking said duct sections within said folds in said overlapped relation.
- a joint for metal duct sections comprising outwardly curved flanges on the sides of the ducts at their adjoining ends, the top and bottom walls of the adjoining duct section ends lying in overlapped relation, a sheet metal cleat formed into three superposed flat folds between which the overlapping top and bottom surfaces lie, and
Description
Nov. 21, 1933.
H. J. ZACK 1,935,690
DUCT JOINT CONSTRUCTION Filed July 5, 1952 Patented Nov. 21, 1933 UNITED: STATES I'ATENTI OFFICE-f.
, DUCT .VJOINTI CONSTRUCTION HansJfZack, Chicago, 111. Application July 5,1932. Serial No; 620377 6 Claims. (01. 285-201 Thisinvention relates to jointsfor metal ducts. One of the requirements in the use of metal ducts is that the forming of the joints between sections of ducts be very inexpensive yet'fullyeifec'tiveito 6 prevent air leakage and to form rigid and stable structures.
This invention aims to provide means for forming joints of ducts which will meet the above requirements and which are more rigidly constructed and more easily and tightly sealed than has heretofore been possible.
Various purposes, objects and advantages of the invention may be understood from a reading of this specification.
In the drawing:
Fig. 1 is a perspective of one of the employed in the joint,
Fig. 2 is a perspective of another element in the joint,
elements m Fig. 3 is a perspective showing adjoining ends of two sections of ducts which are ready for being joined in accordance with this invention,
Fig. 4 is a top plan view of the two sections after being joined,
Fig. 5 is a central vertical section on a plane passing through the line 55 of Fig. 4, while Fig. 6 is an end view of a modified form of cleat. Ordinarily the ends of the two sections of ducts 1 and 2 will be prepared as shown in Fig. 3 with the sides cut back and curled back as illustrated to form the curved outwardly extending flanges 3.
The device shown in Fig. 1, termed a cleat and 5 generally indicated by the numeral 4 is then placed between the opposite ends 5 and 6 of the duct sections and another similar cleat between the opposite ends '7 and 8 at the bottom of the two duct sections. The horizontal portion of 0 each cleat is formed to produce the folds 9, 11,
and 12 and the upstanding reinforcing rib 13. suitable packing 14 and 15 is positioned as shown. Into the upper cleat between the folds 9 and 11 the end portion 5 is inserted while the end portion 6 is inserted between the folds 11 and 12, each portion extending inwardly until it rests against the associated packing material 14 or 15. The bottom cleat is inverted so that its rib extends downwardly and the end portion 8 is inserted between the folds 9 and 11 while the end portion '7 is inserted between folds 11 and 12. Thus the duct sections are telescoped together and locking cleats as shown in Fig. 2 may then be afiixed. V The cleats, generally indicated as 16, have indicated is preferably a fibrous fire-proof macurved flanges 17 and 18 which may embrace the curved flanges 3 of the adjoining duct sections after the latter have been telescoped together.
This is accomplished by aligning theend of. the
cleat with a pair of curved flanges 3 andthen sliding it thereon either from the-topor bottom.
As shown in Fig. 4 a locking cleat of this character is used on each vertical side of the duct. The reinforcing rib 13 being on the outside of the joined sections of. duct adds greatly to the rigidity of the structure and prevents the outside fold of the cleat from being warped away from the adjoining duct surfaces.
It is found that the joints formed in accord ance with this invention have a high degree of rigidity, can be assembled most economically and speedily and do not come part or become less effective during prolonged use.
The packing material employed at the places terial when the ducts are used for carrying hot air and in any event a fibrous material not subject to substantial deterioration over a considerable period of time, although it will be understood that rubber-containing compositions may be employed. The material should be somewhat resilient or compressible.
' The modified form of cleat shown in Fig. 6
differs from that of Fig. 1 only in that instead of employing the flat doubled reinforcing rib 13, a rolled or tubular reinforcing member 19 is provided.
It should be understood that while the invention is herein illustrated in its preferred embodiment, it may be utilized in other forms which so diifer in various respects from the present disclosure though remaining within the spirit and. scope of the invention, particularly as it is defined in the appended claims] Having shown and described my invention, I claim: V 1. A joint for metal duct sections comprising a sheet metal body folded to form three folds between two of which oneend of a duct section is insertable and between the next two of which the end of the adjoining duct section is insertable, projections on the two duct sections, and detachable means engaging said projections for holding said duct section ends locked between said folds.
a sheet metal body formed into three superposed folds, the middle and one outside fold forming a groove to receive the end of one duct section while the middle and other outside fold 11o are formed to receive the end of an adjoining duct section, projections on said duct sections,
and means engaging said projections for forcing said ends inwardly in position within said folds toward the bottoms of the folds.
3. A joint for metal ducts comprising a sheet metal strip folded to form'three superposed folds, the middle and one outside fold being constructed to receive an end of a duct section, the middle andother outside fold being adapted to receive the end of another adjacent duct section in overlapped relation to the first said end, yieldable means in the bottoms of said folds for engaga ing the duct ends, projections on said ducts, and means engaging said projections for urging said duct sections toward each other within said folds against said yieldable means.
4. A joint for metal ducts comprising a sheet metal strip folded to form three superposed folds, the middle and one outside fold being constructed to receive an end of a duct section, the middle and other outside fold being adapted to receive the end of another adjacent duct section in overlapped relation to the firstsaid end, lock engaging means on the duct sections, and locking means cooperating with said lock engaging means for drawing the sections toward each other and for locking said duct sections within said folds in said overlapped relation.
5. A joint for metal duct sections comprising outwardly curved flanges on the sides of the ducts at their adjoining ends, the top and bottom walls of the adjoining duct section ends lying in overlapped relation, a sheet metal cleat formed into three superposed flat folds between which the overlapping top and bottom surfaces lie, and
means embracing the said flanges for holding said duct sections in locked position with their overlapping ends within said folds.
f 6. In combination with two adjoining duct sec-
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US620777A US1935690A (en) | 1932-07-05 | 1932-07-05 | Duct joint construction |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US620777A US1935690A (en) | 1932-07-05 | 1932-07-05 | Duct joint construction |
Publications (1)
Publication Number | Publication Date |
---|---|
US1935690A true US1935690A (en) | 1933-11-21 |
Family
ID=24487348
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US620777A Expired - Lifetime US1935690A (en) | 1932-07-05 | 1932-07-05 | Duct joint construction |
Country Status (1)
Country | Link |
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US (1) | US1935690A (en) |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2752950A (en) * | 1950-09-08 | 1956-07-03 | Coulters Thomas Carey | Connection means for heating and ventilating ducts |
US2982570A (en) * | 1959-02-04 | 1961-05-02 | Eugene W Lohman | Sectional duct type wireway construction |
US3246918A (en) * | 1963-09-06 | 1966-04-19 | George L Burghart | Cleat materials |
US3415543A (en) * | 1965-07-08 | 1968-12-10 | Henry M. Keating | Coupling frame |
US3428342A (en) * | 1968-02-28 | 1969-02-18 | John E Chambers | Connection for sheet metal ducts |
US3727663A (en) * | 1971-01-25 | 1973-04-17 | Cabe F Mc | Device for mounting fire damper |
US3800846A (en) * | 1972-02-14 | 1974-04-02 | J Kurz | Fire damper duct adaptor |
US3836181A (en) * | 1973-06-07 | 1974-09-17 | D Kelver | Cleat for joining duct work |
US3923326A (en) * | 1974-01-04 | 1975-12-02 | Georg Mez | Flange connection |
US4046409A (en) * | 1975-08-13 | 1977-09-06 | Vavra Plat Ab Of Kungalv | Joining arrangement for ventilation ducts and the like |
US4621661A (en) * | 1985-02-01 | 1986-11-11 | Ductlok, Inc. | Method and apparatus for stiffening sections and a mechanical joint for use therewith |
US5195789A (en) * | 1992-02-03 | 1993-03-23 | Walsh Timothy E | Slip lock connector assembly for joining sheet metal ducts |
US20040218975A1 (en) * | 2001-12-07 | 2004-11-04 | Walsh Timothy E | Connector for joining two lengths of sheet metal ducting together end-to-end and the two pieces of sheet metal |
US20080142107A1 (en) * | 2006-05-05 | 2008-06-19 | Ductmate Industries, Inc. | Self Locking Sheet Metal Duct with a Sealant |
US20080303276A1 (en) * | 2007-06-06 | 2008-12-11 | Bloom Vincent L | Sealing Mechanism for Ductwork |
US20090058078A1 (en) * | 2007-09-04 | 2009-03-05 | Knudson Gary A | Sealed ductwork |
US20110042945A1 (en) * | 2007-06-06 | 2011-02-24 | Alvin Coughenour | Dual Purpose Dimple for HVAC Circular Ductwork |
US20150065028A1 (en) * | 2005-09-19 | 2015-03-05 | Chatsworth Products, Inc. | Ducted exhaust equipment enclosure |
CN104943748A (en) * | 2014-03-28 | 2015-09-30 | 富士重工业株式会社 | Member joining structure |
US10123462B2 (en) | 2005-09-19 | 2018-11-06 | Chatsworth Products, Inc. | Ducted exhaust equipment enclosure |
US10440847B2 (en) | 2005-09-19 | 2019-10-08 | Chatsworth Products, Inc. | Vertical exhaust duct for electronic equipment enclosure |
US11212928B2 (en) | 2005-09-19 | 2021-12-28 | Chatsworth Products, Inc. | Vertical exhaust duct for electronic equipment enclosure |
US11259446B2 (en) | 2005-09-19 | 2022-02-22 | Chatsworth Products, Inc. | Vertical exhaust duct for electronic equipment enclosure |
-
1932
- 1932-07-05 US US620777A patent/US1935690A/en not_active Expired - Lifetime
Cited By (45)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2752950A (en) * | 1950-09-08 | 1956-07-03 | Coulters Thomas Carey | Connection means for heating and ventilating ducts |
US2982570A (en) * | 1959-02-04 | 1961-05-02 | Eugene W Lohman | Sectional duct type wireway construction |
US3246918A (en) * | 1963-09-06 | 1966-04-19 | George L Burghart | Cleat materials |
US3415543A (en) * | 1965-07-08 | 1968-12-10 | Henry M. Keating | Coupling frame |
US3428342A (en) * | 1968-02-28 | 1969-02-18 | John E Chambers | Connection for sheet metal ducts |
US3727663A (en) * | 1971-01-25 | 1973-04-17 | Cabe F Mc | Device for mounting fire damper |
US3800846A (en) * | 1972-02-14 | 1974-04-02 | J Kurz | Fire damper duct adaptor |
US3836181A (en) * | 1973-06-07 | 1974-09-17 | D Kelver | Cleat for joining duct work |
US3923326A (en) * | 1974-01-04 | 1975-12-02 | Georg Mez | Flange connection |
US4046409A (en) * | 1975-08-13 | 1977-09-06 | Vavra Plat Ab Of Kungalv | Joining arrangement for ventilation ducts and the like |
US4621661A (en) * | 1985-02-01 | 1986-11-11 | Ductlok, Inc. | Method and apparatus for stiffening sections and a mechanical joint for use therewith |
US5195789A (en) * | 1992-02-03 | 1993-03-23 | Walsh Timothy E | Slip lock connector assembly for joining sheet metal ducts |
US20040218975A1 (en) * | 2001-12-07 | 2004-11-04 | Walsh Timothy E | Connector for joining two lengths of sheet metal ducting together end-to-end and the two pieces of sheet metal |
US7018127B2 (en) * | 2001-12-07 | 2006-03-28 | Walsh Timothy E | Connector for joining two lengths of sheet metal ducting together end-to-end and the two pieces of sheet metal |
US10440847B2 (en) | 2005-09-19 | 2019-10-08 | Chatsworth Products, Inc. | Vertical exhaust duct for electronic equipment enclosure |
US10123462B2 (en) | 2005-09-19 | 2018-11-06 | Chatsworth Products, Inc. | Ducted exhaust equipment enclosure |
US11785745B2 (en) | 2005-09-19 | 2023-10-10 | Chatsworth Products, Inc. | Vertical exhaust duct for electronic equipment enclosure |
US11678447B2 (en) | 2005-09-19 | 2023-06-13 | Chatsworth Products, Inc. | Vertical exhaust duct for electronic equipment enclosure |
US11547020B2 (en) | 2005-09-19 | 2023-01-03 | Chatsworth Products, Inc. | Vertical exhaust duct for electronic equipment enclosure |
US11259446B2 (en) | 2005-09-19 | 2022-02-22 | Chatsworth Products, Inc. | Vertical exhaust duct for electronic equipment enclosure |
US11212928B2 (en) | 2005-09-19 | 2021-12-28 | Chatsworth Products, Inc. | Vertical exhaust duct for electronic equipment enclosure |
US10791640B2 (en) | 2005-09-19 | 2020-09-29 | Chatsworth Products, Inc. | Vertical exhaust duct for electronic equipment enclosure |
US10765037B2 (en) | 2005-09-19 | 2020-09-01 | Chatsworth Products, Inc. | Vertical exhaust duct for electronic equipment enclosure |
US10624232B2 (en) * | 2005-09-19 | 2020-04-14 | Chatsworth Products, Inc. | Ducted exhaust equipment enclosure |
US10568239B2 (en) | 2005-09-19 | 2020-02-18 | Chatsworth Products, Inc. | Method of venting heated air from electronic equipment enclosure |
US10334761B2 (en) | 2005-09-19 | 2019-06-25 | Chatsworth Products, Inc. | Method of venting heated air from electronic equipment enclosure |
US20150065028A1 (en) * | 2005-09-19 | 2015-03-05 | Chatsworth Products, Inc. | Ducted exhaust equipment enclosure |
US20120151734A1 (en) * | 2006-05-05 | 2012-06-21 | Gudenburr Douglas G | Method of Installing Sealed Circular Ductwork |
US20080148543A1 (en) * | 2006-05-05 | 2008-06-26 | Ductmate Industries, Inc. | Method of installing a self locking sheet metal duct |
US7708034B2 (en) * | 2006-05-05 | 2010-05-04 | Ductmate Industries, Inc. | Self locking sheet metal duct with a sealant |
US8151430B2 (en) * | 2006-05-05 | 2012-04-10 | Ductmate Industries, Inc. | Method of installing a self locking sheet metal duct |
US10190796B2 (en) * | 2006-05-05 | 2019-01-29 | Ductmate Industries, Inc. | Self-sealing circular cross-section sheet metal duct and method for manufacturing a sealed circular cross-section duct |
US20130240077A1 (en) * | 2006-05-05 | 2013-09-19 | Ductmate Industries, Inc. | Method of Installing Sealed Circular Ductwork |
US20080142107A1 (en) * | 2006-05-05 | 2008-06-19 | Ductmate Industries, Inc. | Self Locking Sheet Metal Duct with a Sealant |
US8505185B2 (en) * | 2006-05-05 | 2013-08-13 | Ductmate Industries, Inc. | Method of installing sealed circular ductwork |
US8429803B2 (en) | 2007-06-06 | 2013-04-30 | Ductmate Industries, Inc. | Dual purpose dimple for HVAC circular ductwork |
US8973954B2 (en) | 2007-06-06 | 2015-03-10 | Ductmate Industries, Inc. | Dual purpose dimple for HVAC circular ductwork |
US7992904B2 (en) | 2007-06-06 | 2011-08-09 | Ductmate Industries, Inc. | Sealing mechanism for ductwork |
US20110042945A1 (en) * | 2007-06-06 | 2011-02-24 | Alvin Coughenour | Dual Purpose Dimple for HVAC Circular Ductwork |
US20080303276A1 (en) * | 2007-06-06 | 2008-12-11 | Bloom Vincent L | Sealing Mechanism for Ductwork |
US20090058078A1 (en) * | 2007-09-04 | 2009-03-05 | Knudson Gary A | Sealed ductwork |
US11464132B2 (en) | 2008-09-08 | 2022-10-04 | Chatsworth Products, Inc. | Ducted exhaust equipment enclosure |
US11706898B2 (en) | 2008-09-08 | 2023-07-18 | Chatsworth Products, Inc. | Ducted exhaust equipment enclosure |
CN104943748A (en) * | 2014-03-28 | 2015-09-30 | 富士重工业株式会社 | Member joining structure |
CN104943748B (en) * | 2014-03-28 | 2018-03-23 | 株式会社斯巴鲁 | Part joint construction |
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