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Publication numberUS3915331 A
Publication typeGrant
Publication date28 Oct 1975
Filing date5 Dec 1973
Priority date8 Dec 1972
Publication numberUS 3915331 A, US 3915331A, US-A-3915331, US3915331 A, US3915331A
InventorsChenault Bert Russel
Original AssigneeChenault Bert Russel
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Non-spill cover
US 3915331 A
Abstract
A liquid container has a lid with a generally planar top provided about its periphery with liquid outlet flap valves which serve to stop liquid which is splashing around in the container from being spilled, but allowing liquid to be drawn outwardly from the container on the application of suction to open the valves.
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Description  (OCR text may contain errors)

o mted States Patent 1111 3,915,331

Chenault Oct. 28, 1975 1 NON-SPILL COVER 2,623,368 12/1952 Olsen 220/90.4 3,360,161 12/1967 Smith..... 220/90.4 [76] Invent Russel Chenault, 11 Eaton 3,524,566 8/1970 Parks 220/902 Terrace, SW1 LOndon, England 3,556,338 1/1971 Wilkinson et a1. 220/60 R 22 Filed: 5 1973 3,635,380 l/l972 Fitzgerald 220/90.4 3,727,808 4/1973 Fitzgerald 220/90.4 [21] Appl. No.: 421,762 3,797,696 3/1974 Dibrell 220/90.4

Prima ExaminerWilliam 1. Price 30 F A l 1 Data "Assistant ExaminerAllan N. Shoap Dec. 8, 1972 United Kingdom 56840/72 Attorney, Agent or Firm Fleit & Jacobson [52] US. Cl. 220/90.4; 222/511; 229/7 51 Int. c1. A47G 19/22 [57] ABSTRACT [58] Field of Search 220/902, 90.4, 90.6; A liquid container has a lid with a generally planar p 229/7 43; 222 494 545 4 5 4 51 provided about its periphery with liquid outlet flap valves which serve to stop liquid which is splashing [56] References Cited around in the container from being spilled, but allow- UNITED STATES PATENTS ing liquid to be drawn outwardly from the container on the application of suction to open the valves. 2,161,230 6/1939 Nelson 222/494 2,507,248 5/1950 Swan 222/494 6 Claims, 3 Drawing Figures US. Patent Oct. 28, 1975 3,915,331

NON-SPILL COVER The present invention relates to covers for liquid containers such as cups, glasses or beakers and which are designed to prevent liquid being spilled when it is slopped around inside the container or when the container is overturned. Such covers are especially useful for childrens cups and for cups used for picnics, and which may be shaken about or tipped over either during transport or in use.

According to the invention I provide a lid for a liquid container comprising a generally planar top having a plurality of liquid outlet flap valves formed in the top adjacent the periphery thereof and openable outwardly of the top by suction applied thereto.

The cover itself is preferably manufactured of a flexible material. Plastics materials are especially suitable for the cover, and polyethylene and polypropylene have been found to provide suitable strength and flexibility, especially low density polyethylene. The valve or valves may be in the form of a cut-out tongue in the cover which under conditions of no stress will be in a closed position, and which when subject to external suction will flex outwardly to allow passage of liquid through the thereby defined slots.

Optionally an air inlet valve or opening may be provided and this may suitably be situated towards the centre of the cover and may be formed in a similar manner to the liquid valves, but will be constructed to allow passage of air into the container when subject to a reduced internal pressure.

The cuts defining the tongues of the liquid and air valves are preferably at an acute angle to the face of the cover adjacent thereto, so that co-operating chamfered edges are formed, which abut one another to improve the sealing effect, and to act as an abutment preventing the tongues moving beyond their closed positions.

The cover may be attachable to the cup, glass or beaker either by means of a screw thread formed on a depending skirt portion thereof, or merely by means of a detent press closure mechanism in conjunction with a rib on the upper periphery of the cup, glass or beaker.

In order that the present invention may more readily be understood, the following description is given merely by way of example, reference being made to the accompanying drawings in which:

FIG. 1 is a top plan view of a cover constructed according to the present invention;

FIG. 2 is a side elevational section of the cover of FIG. 1 disposed on a container; and

FIG. 3 shows a modified form of closure mechanism for the cover of FIGS. 1 and 2.

In FIGS. 1 and 2 a cover generally referenced 1 includes a lid portion 2 and a depending skirt portion 3. In the lid portion 2 there is formed a multiplicity of liquid valves 4 each formed by tongues 5 which in their unstressed condition maintain the valves closed, and which then subject to reduced external pressure will open. An air inlet valve 6, optional to the invention, is shown as being located in the centre of the lid 2 and is formed by a cut away portion or tongue 7 which, as shown in ghosted lines in FIG. 2, will deform when subject to reduced internal pressure to allow passage of air therethrough.

In FIG. 2 the means for attaching the cover to the container 8 in a leakproof manner comprises a screw thread closure mechanism in which the skirt portion of the cover has an internal screw thread 8 formed on its inner lower peripheral surface to co-operate with an external screw thread 9 on the upper edge of the container 8.

In FIG. 3 there is shown a modified form of closure mechanism in which a bead 11, formed on the upper outer peripheral edge of the container, snaps into engagement between two ribs 12 and 13 formed on the skirt 3 of the cover 1.

This latter form of closure mechanism has the advantage that it can be used to apply the cover of the invention to a much larger range of beakers and cups, requiring only that the container be provided with an external bead. Various other configurations of ribs and grooves may be used to effect leakproof closure of the cover to a container.

In any event all the components of the invention can readily be manufactured from plastics material by injection moulding techniques as are well known in the art.

The liquid valves should be constructed such that they will not open on only slight internal pressure, but will require some mild suction to be applied to the outside, thereby inhibiting accidental spillage of liquid.

The number and exact distribution of liquid valves provided can clearly be varied according to requirements, but it is to be noted that, by providing them around the entire periphery of the cover any inconvenience due to only a small drinking region will be obviated, and by providing large numbers separated only by narrow strips the entire rim of the unit may provide a drinking lip.

I claim:

1. In or for a liquid container, a lid comprising a generally planar top, a periphery to said top, attachment means integral with the top and depending from said periphery and cooperable with the container to secure the lid thereto, and a plurality of flap valves formed in the top and spaced about the periphery thereof adjacent the latter, each of said flap valves normally lying in a closed position in which it forms a continuation of the remainder of the top, but being operable outwardly of the top by mouth suction applied thereto for the withdrawal of liquid from the container and including chamfered edges to each flap valve and a valve seat in said top, such seat having correspondingly chamfered edges to cooperate with said edges of said flap valves so that the latter cannot move inwardly of the said top.

2. The lid specified in claim 1, wherein the lid is formed of a flexible plastics material and each of said flap valves is integral with the top and has a hinge edge remote from said periphery.

3. The lid specified in claim 1 and further including in said top an air inlet valve which, unlike the said flap valves, does not open outwardly of the top, but only opens inwardly thereof.

4. A lid as claimed in claim 1, and including a skirt depending from the generally planar top.

5. A lid as claimed in claim 4, wherein said attachment means comprise a screw thread formed on the skirt and wherein said liquid container further comprises a screw thread cooperable with that on said skirt.

6. A lid as claimed in claim 4, wherein said attachment means comprises a rib formed on said skirt and further including a ridge formed on the liquid container and co-operable with that of said skirt to form a spring detent attachment.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2161230 *29 Jul 19386 Jun 1939Nelson Curtis OContainer closure
US2507248 *22 Feb 19459 May 1950Shellmar Products CorpDispensing closure for containers
US2623368 *13 Jul 195030 Dec 1952Olsen Edward FSpillproof glass
US3360161 *21 Oct 196526 Dec 1967Smith Marlin BSplashproof drinking vessel
US3524566 *12 Aug 196818 Aug 1970American Can CoStraw slot for container closure
US3556338 *9 Aug 196819 Jan 1971Jamco IncResilient closure having invested recess securing means
US3635380 *5 Jan 197018 Jan 1972Nospil LtdContainer closure
US3727808 *13 Aug 197117 Apr 1973Nospil LtdNon-spill drinking cup top
US3797696 *26 Nov 197119 Mar 1974Nospil LtdNon-spill container closure
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4141462 *7 Nov 197727 Feb 1979Rucci Charles DDevice for decreasing heat transfer and slosh from a beverage container
US4350260 *11 Aug 198021 Sep 1982Prueher Andrew BLid for drinking containers
US4589569 *22 Aug 198420 May 1986Solo Cup CompanyLid for drinking cup
US4767019 *25 Sep 198730 Aug 1988Horner Tommy DSplash resistant cup lid
US5799814 *30 Jul 19961 Sep 1998Sweetheart Cup Company Inc.Drink-through lid for container
US5848722 *23 May 199715 Dec 1998Hanes; Eldridge C.Spill resistant holder for mug
US5890620 *14 Aug 19976 Apr 1999Belcastro; DomenicAutomatically sealing cup
US5890621 *21 Oct 19966 Apr 1999Gerber Products CompanyCup for young children with cap valved for fluid control
US6050445 *6 Feb 199818 Apr 2000Playtex Products, Inc.Leak-proof cup assembly with flow control element
US6116446 *18 May 199812 Sep 2000Snappull Technologies Inc.Stoppers for individual bottle-type beverage container
US6116457 *2 Sep 199612 Sep 2000Haberman; Mandy NicolaDrinks containers
US649433213 May 199917 Dec 2002Hide-A-Straw Inc.Stoppers for individual beverage containers
US656855712 Mar 200127 May 2003Cosco Management, Inc.Spill proof training cup
US662962429 Jun 20017 Oct 2003Acorn Bay, LlcDrink spout system
US66318235 Jul 200114 Oct 2003Acorn Bay, LlcDrink spout system
US67863524 Jun 20017 Sep 2004Domenic BelcastroValve arrangement for an automatically sealing cup
US6938794 *25 Apr 20026 Sep 2005Innatech, LlcLip actuated valve closure for a drinking bottle
US71471213 Apr 200312 Dec 2006Abc Development Inc.Valve for non-spill cup
US71527638 Jul 200426 Dec 2006Stull Technologies, Inc.Container closure and method of assembly
US720438627 Nov 200117 Apr 2007Hakim Nouri ENo-spill drinking cup apparatus
US724381425 Feb 200217 Jul 2007Hakim Nouri ENo-spill drinking cup apparatus
US757512628 Jan 200518 Aug 2009Handi-Craft CompanyLeak resistant drinking cup
US778926317 Apr 20077 Sep 2010Luv N' Care, Ltd.No-spill drinking cup apparatus
US77892649 Jul 20077 Sep 2010Luv N' Care, Ltd.No-spill drinking cup apparatus
US8033420 *28 Nov 200711 Oct 2011Htss Capital LlcAnti-splash device for a beverage container
US833329922 May 200918 Dec 2012Handi-Craft CompanyLeak resistant drinking cup
US8453870 *30 Mar 20094 Jun 2013Anne May BergDrinking cup device
US86958419 Jun 201015 Apr 2014Luv N' Care, Ltd.No-spill drinking cup apparatus
US20110084084 *30 Mar 200914 Apr 2011Gunnar BergDrinking Cup Device
USRE370166 Aug 199816 Jan 2001Playtex Products, Inc.Flow control element and covered drinking cup
USRE4307731 Oct 200710 Jan 2012Luv N' Care, Ltd.No-spill drinking cup apparatus
EP2265152A1 *30 Mar 200929 Dec 2010Gunnar BergDrinking cup device
EP2432352A1 *17 May 201028 Mar 2012Great Fortune (HK) LimitedAccessory for drinking vessel
WO2001023266A2 *29 Sep 20005 Apr 2001Michel D ArneyContainer closure
WO2001025107A1 *23 Nov 199912 Apr 2001Arney Michel DContainer closure
Classifications
U.S. Classification220/711, 220/714, 222/511
International ClassificationB65D47/04, B65D47/06, B65D47/20, A47G19/22
Cooperative ClassificationB65D47/06, B65D47/043, A47G19/2272, B65D47/2031
European ClassificationB65D47/04A, B65D47/20E2, A47G19/22B12G, B65D47/06