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Publication numberUS2520467 A
Publication typeGrant
Publication dateAug 29, 1950
Filing dateFeb 5, 1946
Priority dateFeb 5, 1946
Publication numberUS 2520467 A, US 2520467A, US-A-2520467, US2520467 A, US2520467A
InventorsFranz N Merralls
Original AssigneeRubbercraft Corp Of California
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Receptacle and closure means therefor
US 2520467 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)


5 L R M NR N 5 mm W H mM K N R N 0 Z T M M m m W A 4. BER m 1 m ax 6 & 70 1 2N1? H 3 Patented Aug. 29, 1950 UNITED. STATES PATENT OFFICE RECEPTACLE AND CLOSURE S THEREFOR Franz N. Merralls, Inglewood, -Calif., assignor to Rubbercraft Corporation of California, Ltd., Los Angeles, Calif., a corporation of California Application February 5, 1946, Serial No. 645,515

, 1 Claim. 1 l 1 This invention relates generally to receptacle and closure means therefor, having particular application to tobacco pouches but adapted for utility in various types of containers by which an almost air-tight flexible seal between the opposed edges of the opening in such devices, or between any two members equipped with the elements thereof, may be effected.

Flexible containers composed of fabric, rubber, or various plasticequivalents are usually provided with metallic locking means such as slide fasteners or clasps, the latter requiring the inclusion of metal bars which line the mouth 01 the opening. Where flexibility is a feature of construction of such receptacles, the presence of the metallic locking elements, contributing a measure of rigidity to the assembly, is more or less objectionable. It is, accordingly, desirable for many applications to provide a sealing device which preserves to a maximum degree the flexibility of the assembly.

In some receptacles the security of the seal in withstanding extraordinary usage is of lesser importance than its efiectiveness against the admission under normal conditions of ai or liquid. For example, the proper storage of tobacco depends upon the preservation of humid atmospheric conditions. On the other hand, various sensitive instruments must be sealed against moisture when not in use in order to maintain their efiicacy. The metallic structures of the prior art intended for analogous purposes cannot without exorbitant cost be adapted to efiect a seal which will meet these requirements.

A principal object of the present invention is to provide a composite closure strip operable to extendthe limited utility and obviate the abovementioned and other disadvantages of prior art structures, comprising a pair of elongated flexible and compressible elements adapted to engage one another throughout their length and form a tight seal incident to their expansion upon such engagement.

More specifically an object is the provision of complementary strips embodying, respectively, a mortise, and a tenon contractible to permit its engagement in the mortise in response to lateral pressure thereagainst, any reach of the strip assembly being easily separable by the application of tension exerted upon either of the elements.

Another object is to provide a flexible bag or container having an elongated opening therein with the edges of the opening secured to the respective sealing strips, the later being held in engagement with one another at each end of the opening by the sides of the bag and the intermediate portions being engageable to form a substantially air-tight seal to thereby preserve prevailing conditions of humidity or dryness within the container,

Numerous other objects and advantages of my invention important in specific applications thereof, such for example as. simplicity of con-'- struction, economy of manufacture, ease of operation, and efficacy of the seal, as well as neatness of appearance and conservation of the space required therefor in any container unit so equipped,

will be apparent to those of skill in the art upon an examination of the following description read in the light of the accompanying drawings, in which:

Fig; 1 is. a top edge view of a pouch or bag embodying my invention and illustrating the complementary parts of the sealing strip in engaged positions; a

Fig. 2 is a view similar to Fig. 1, depicting the pouch open, i. e., with the elements of the seal displaced from one another intermediate their ends;

Fig. 3 is a side elevation of the pouch shown in Figs. 1 and :2; and

Fig. 4 is a sectional view taken on lines 4-4 of Fig. 1.

Referring to the drawings in detail, the numorals of which indicate similar parts throughout the several views, 5 designates generally a pouch or a sack fortobacco or the like formed of a single piece offabricwith the ends 6 sewed or otherwise secured together. The top of the sack is open, and to opposite edges of this opening the sealing elements of the present invention are secured by suitable means, as will be herein after described more in detail. The pouch may include an inner imperforate lining of oil skin or any other material, but as this forms no part of the present invention, it is not illustrated or described. It will be understood that the sack or pouch 5 is merely illustrative of any of a plurality of containers or receptacles, composed of any material well known in the art and varying widely in size and design, to which the seal of my invention is applicable. 1

The sealing means of my invention comprises two elongated elements I and 8, preferably composed of rubber or other resilient and compressible material. The element 1 is generally rectangular in cross-section, having a smooth back surface 9 adapted for attachment by an adhesive or other well-known means to the edge ID of one side of pouch 5 at the opening therein. The

3 upper and lower narrower surfaces II of the strip element I may also be smooth and, in the embodiment illustrated, perform no function.

The complementary sealing strip 8 adapted in operation to engage with strip I is also rectangular in cross-section but is more nearly flat, one surface I2zbeing securedato theeoppositmsi'de; I3: of pouchzSfiadjacent the opening so'that ttie.narrower edges I4 of strip 8 are substantially flush with the corresponding surfaces II of strip If The opposing surfaces I5 and- I6 of there.- spective strips I and 8, respectivelyia're adapted-i to firmly engage one another, being securedin such relative positions whencit istdesiredtliat tlies pouch be closed, in a mannerabou't 'tm be d'escribed. To this end, surface'* I5 of strip-'I is formed with a mortise groove: ll interrnediate the edges thereof, having a narrow neck I8 displaced inwardly slightly from the plane of the sealing surface I5. The outer edges of groove I I: diverge flOIIlEthEfIEdl-lGBd neck-1 I 8 as at I9= intovtheeplaneiof sealingisurfacewl 5, the corners being preferably; rounded as illustrated. in Fig 4? Groove Il isl enlarge-elf at its bottonnformingza'n' arcuate concavity 2B of a diameter greater than 5 the-:width' of: neck" Ii! ofthe groove: II so? as to: accommodate? and :retain therein? a tenon' I1 2I of corresponding:shape: Tenon 2'5 is-integrallya formed with themiddle' of: the opposing sealing:

surface- I6 -ofv the complementary strip: 8, andL' conforms" in cross se'ctional contour with: the i: shapeof groove: I 7 b-ut may be slightly larger: f or: a pmpose hereinafter described; With'thers'eal-'- ingestripszl and 81' secured to' thei'edgesio'flithe mouth-pf:the-openingzin pouch tenon' ll i ithus disposed directly opposite mortise groove IIi As the sealingaelements I and 8 "areflof aslength equal to'i'theklerigth of the open'ingin th'e pouch of which-ithey are Ia; part; the corresponding "ends '3 of the strips are maintained in operativeaengage-e merit: byithe converging: sides I of 1 the "container, isee, the ends ottenonzit aressecured'in' thei: corresponding; ends, respectively; oi the :mortise' groove II. Due to the flexibility of the materiali oftw'hich' pouch zfi'z and sealingassemblyfar'e composed, the intermediate reaches-s of the: sealing elementsmaynberseparated as in'dicatedrinrFigiz to permit access to the interior of the pouch When iitfiis" desiredato close'the pouch; the opening; thereof is constricted; pressure beingit applied zto 'the: opposite "edges 'oftthe' n'routhiat a number ofipoint's along-the length of: the sealing assembly; In this manerftenorr 2-I;IwhichT1is-:at1- alli'tim-esr-in transverse alignment withtgroovez E I r in: the complementary strip. I; is broughtdntos contaet:-vvith the latter strip and 1 centered with? groove"- I I =byi the diverg-ing :outer' edges- I Bro-Fathe groove;v Continued" pressure: compresses tenon zl andlcoincidentallyz expands th'erneck I 8 off groove! 1 to pBTm'itIthe tenonto completely enter into? operative: locking engagement therewithzz. Upon itS BreCeptiQri-in theconcavity 25] of i'm'ortisei groove lint/81101 1 2i expands to firmly engagevthm bottom: lot the: groove, and,'-. correspondingly; the? meals; I 81 0f the :groove is: permitted to'i COIIStI-i'Cti the; reduced shank z2 of-the-tenonr Thus; ans efiective seal is provided-not only; between-the" 4 mortis I1 and tenon 2|, but between the opposing sealing surfaces I5 and I6 of the respective strips I and 8, which are held firmly in engagement by reason of the association of the tenon in the mortise. The degree of pressure required to engage the sealing strips as well as the numbero'f points a'long thevleflg-th off theslatter at which pressure must be applied will vary 'with the siz and specific contour of the sealing strips, asmwell as with the resiliency of the material of whichhthe same and particularly the mortise and tenon elements thereof, are composed.

It will be understood that the assembly of the sealir i'g exp'edientswith the pouch as depicted in trie di'awin'gs ispnlyiillustrative of one feature of my invention; andthat any members, flexible or otherwise; equipped with the novel strips hereof may be eifectively joined in a like manner. It

is not essential that the ends of the sealing assembl be continuouslyengaged as hereinabove 1 Patentiisf" lmafsdeyicei'of i the charaeterldeseribed} mem ber havin ameIongatedimortise-groove therein formed: with: a5: restrictedtmoutl= in one' suriace': thereotiaizstrip having; al tehbn projectirig 1ater ally; from one 's rirface thereof proportionate in size and of a shape identical witl'f that of"the groove: and? of at length: corresponding-J tothat ofrsaid grooveesaid terron b'eing composcd' of=" resilient contracti-ble material and normal sli ghtly large-r3 than said mortise groove :so: as

REEERENCESJ CITED Th ef f o'l'lowing" 'referen'ces' are of record' in'" the nic of th'is patent:

UNiTED STATES PATENTS J' Numbei Name Datess-nses 1' 1,703,? 12 2 10 7316 2,115,424: 23582658: 291695489:

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US811487 *Mar 7, 1905Jan 30, 1906Miriam DavidsonWaterproof eyeglass-case.
US1703712 *Apr 15, 1927Feb 26, 1929Aud Thomas EdgarClosure for containers
US2107216 *Apr 22, 1936Feb 1, 1938Rogers Harry LReceptacle and closure therefor
US2115424 *Aug 31, 1935Apr 26, 1938Geno LestiClosure
US2358653 *Jan 5, 1943Sep 19, 1944Hugo MockClosure for bags, pocketbooks, and other containers
US2409489 *Jan 27, 1944Oct 15, 1946Us Rubber CoWatertight closure
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2705039 *Apr 27, 1950Mar 29, 1955William Michael ZayetsCover for golf-club woods
US2777181 *Sep 15, 1951Jan 15, 1957George Morner HansWaterproof closure
US2884979 *Jul 15, 1957May 5, 1959Corbe IsraelPocket fasteners and pockets
US2962070 *Feb 10, 1959Nov 29, 1960Comoy S Of London IncAirtight tobacco pouch
US3110335 *Jun 20, 1960Nov 12, 1963Lafayette L PierpontSelf closing container
US3176743 *May 7, 1962Apr 6, 1965Bundy CompanyContainer
US3275053 *Mar 16, 1964Sep 27, 1966Joseph A KabanaPurse and method of manufacturing the same
US3338284 *Jul 22, 1963Aug 29, 1967Ausnit StevenSheet with fastener structure
US3440696 *Oct 22, 1965Apr 29, 1969Flexigrip IncSealing fastener
US3863640 *Apr 27, 1973Feb 4, 1975Haverstock Charles BBandage construction
US3924843 *Mar 11, 1974Dec 9, 1975Repapress AgTool
US4720015 *Apr 30, 1986Jan 19, 1988International Paper CompanyMoisture-proof, linerless carton with reclosable top membrane
US4792983 *Jul 22, 1987Dec 20, 1988Decomatic S. A.Bag or like packing having an inviolable closure
US4854017 *Nov 17, 1987Aug 8, 1989First Brands CorporationMultiposition interlocking closure fastening device
US5123146 *Aug 14, 1987Jun 23, 1992Olson Products, Inc.Bag closure
US7204388Aug 14, 2002Apr 17, 2007International Molded Packaging CorporationLatchable container system
US7819279Oct 26, 2010International Molded Packaging CorporationLatchable container system
US20040031795 *Aug 14, 2002Feb 19, 2004International Molded Packaging CorporationLatchable container system
US20070095848 *Oct 27, 2006May 3, 2007Galland Roderick ELatchable container system
U.S. Classification383/63, 24/585.12, 24/DIG.510, 24/DIG.380
International ClassificationB65D33/25, A24F23/02, A44B19/16
Cooperative ClassificationY10S24/38, Y10S24/51, A44B19/16, A24F23/02, B65D33/2508
European ClassificationA24F23/02, B65D33/25A