[특허]Bags and method of making bags

[미국특허] Bags and method of making bags 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B31B-027/00
출원번호	US-0454374 (1995-06-06)
국제출원번호	PCT/US94/11346 (1994-10-06)
§371/§102 date	19950606 (19950606)
국제공개번호	WO-9509727 (1995-04-13)
발명자 / 주소	Lerner Bernard Cronauer William M.
출원인 / 주소	Automated Packaging Systems, Inc.
대리인 / 주소	Watts, Hoffmann, Fisher & Heinke Co., L.P.A.
인용정보	피인용 횟수 : 15 인용 특허 : 9

초록 ▼

Methods of making a container strip in the form of a chain of interconnected preopened bags with openings preferably having longitudinal dimensions of at least about 1/64 inch is disclosed. The container strip provides greatly enhanced facility for bag registration and opening during packaging operations utilizing the improved container strip. Processes of forming a chain of preopened bags are also disclosed. Face and back plastic webs are fed along individual paths of travel to a common path. In one embodiment the webs are differentially tensioned while in their independent paths by stretching the face web more than the back web such that the face web will retract longitudinally more than the back web upon release of the web tension. While so tensioned edge seals are formed between the webs to convert the webs into a tube and longitudinally spaced transverse seals are formed between the webs to delineate bottoms of bags. Transverse lines of weakness are formed in the back web to facilitate separation of bags from the remainder of the web during a subsequent use. Tension in individual bag sections of the face web is released by forming longitudinally spaced transverse separations of the sections and thereby producing a space between each contiguous pair of sections. In other embodiments pairs of transverse lines of severance are formed in a front section of the webs and parts between the lines of severance are removed to form the novel bags without the need for differential stretching.

대표청구항 ▼

[ We claim:] [1.] A process of making a chain of interconnected, preopened plastic bags comprising:a) feeding face and back plastic web sections along respective paths of travel;b) forming at least one longitudinally extending first bag side edge seal opposite and spaced from a second side edge delineated by a selected one of a longitudinally extending side fold and a longitudinally extending second side edge seal;c) forming spaced, parallel, transversely extending lines of weakness in the back section, the lines of weakness extending substantially continuously from the first side edge to the second side edge whereby to provide edge to edge support for each such bag when a product is loaded into it;d) forming spaced pairs of transversely extending, spaced lines of severance in the front section at longitudinally spaced intervals corresponding to the longitudinal spacing of the lines of weakness;e) superposing the sections with each pair of lines of severance positioned with an associated one of the fines of weakness longitudinally located between the lines of severance of an associated pair of the lines of severance;f) forming spaced, transverse seals between the sections at least certain of the transverse seals delineating bag bottoms each near a line of weakness and its associated pair of lines of severance and extending substantially from the first side edge to the second side edge; and,g) forming bag openings by removing portions of the face section, the portions extending from the first side edge to the second and being between the lines of severance of each pair and each opening extending longitudinally in both directions from the associated line of weakness whereby to facilitate detection of the lines of weakness during a subsequent packaging operation.

이 특허에 인용된 특허 (9) 인용/피인용 타임라인 분석

Kramer James D. (Medina OH), Bagging control apparatus and method.
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Dahlem A. Richard (1237 E. Main St. Rochester NY 14609), Medical pouches and a method of manufacturing such pouches.
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Lerner Bernard (Peninsula OH) Liebhart Dana J. (Streetsboro OH), Method and apparatus for packaging.
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Lerner Bernard (Peninsula OH), Method of making a container strip having inserts.
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Ernst Edwin F. (3722 Buckingham Dr. Roanoke VA 24018), Method of making plastic bag construction in serial roll form.
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Lerner Bernard (Hudson OH), Packaging method and apparatus.
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Baker Tony D. (5808 Ogilby Dr. Hudson OH 44236), Packaging system.
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Gold Paul (250 Hammond Pond Pkwy. ; Unit 501N Chestnut Hill MA 02167), Plastic bags roll and method for making same.
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Jelling Murray (21 Spring Hill Road Roslyn Heights NY 11577) Kahn Alexander (30 E. Bayview Ave. Massapequa NY 11758) Moore Ernest George (1630 Paula Lane East Meadow NY 11554) Friedman Michael (1178 , Special bags for bagging apparatus.
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이 특허를 인용한 특허 (15) 인용/피인용 타임라인 분석

Gates, George C.; Gates, Rod S., Bag filling and sealing machine and method for handling bags.
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Gates, Christopher G., Flange alignment and grasping assembly for bag handling apparatus.
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Zeedyk, Derek J.; Lerner, Bernard; McDonald, Kent; Coleman, Michael; Martens, Gregg, Method and apparatus for making packages with internal headers from preformed bags.
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Zeedyk,Derek J.; Lerner,Bernard; McDonald,Kent; Coleman,Mike; Mertens,Gregg, Method and apparatus for making packages with internal headers from preformed bags.
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Rabiea, Jeffrey D., Method of packaging point-of-purchase items.
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Ichikawa,Tooru, Packaging bag and method for manufacturing same.
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Riccardi, Michael; Lerner, Bernard, Packaging machine.
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Riccardi, Michael; Lerner, Bernard, Packaging machine.
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Chuba, Larry, Packaging machine and process.
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Chuba, Larry, Packaging machine and process.
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Lerner, Hershey; Lattur, Joseph, Packaging machine and process.
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Baines, Michael, Packaging materials and methods.
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Baines, Michael, Packaging materials and methods.
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Rabiea, Jeffrey D., Plastic bag and packaging method using same.
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Anthony H. Gates, Sealable bag.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Bags and method of making bags 원문보기