[특허]Method of making a stand-up plastic bag

Method of making a stand-up plastic bag 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B31B-037/64
출원번호	US-0533621 (1990-06-05)
발명자 / 주소	Mitchell David W. (Midland MI) Vrooman Roger D. (Midland MI)
출원인 / 주소	Dow Brands Inc. (Indianapolis IN 02)
인용정보	피인용 횟수 : 28 인용 특허 : 0

초록 ▼

An improved method of making a stand-up plastic bag in which the side seam seals are formed at the same time as the gusset wall seals. The method includes the steps of supplying the film, folding the film to form the gusset, simultaneously forming the heat seals for the gusset walls and the side seams at one temperature, forming the heat seals to join the gusset walls together at a higher temperature, and separating the film into completed bags. The improved method provides greater efficiency and increased production rates.

대표청구항 ▼

A method of making a stand-up plastic bag, comprising the steps of: (a) supplying a multi-layered film of first and second thermoplastic materials, said first material being heat-sealable at a temperature within a first temperature range and said second material being heat-sealable at a temperature within a second temperature range which is a range of temperatures higher than the temperatures in said first temperature range; (b) folding said film to form a pair of front and rear side walls and a pair of front and rear bottom gusset walls disposed between said side walls with said first and second materials being on respective interior and exterior surfaces of said side and gusset walls; (c) heat sealing at a temperature within said first temperature range to simultaneously form a first set of heat seals which (1) joins lower end portions of said front and rear bottom gusset walls with corresponding lower end portions of said front and rear side walls at contiguous regions of said first material on said interior surfaces thereof to form a bottom wall of connected upper portions of said front and rear bottom gusset walls which extend between said front and rear side walls, and (2) joins said front and rear side walls with said front and rear bottom gusset walls along opposite longitudinal edges thereof at contiguous portions of said first material on interior surfaces of said longitudinal edges of said walls; (d) heat sealing at a temperature within said second temperature range to form a second set of heat seals which joins said front and rear bottom gusset walls together along their opposite longitudinal edges at contiguous portions of said second material on said exterior surfaces thereof; and (e) separating said film into completed plastic bags by severing said film through at each of said heat seals at each of said longitudinal edges of said walls.

이 특허를 인용한 특허 (28)

McDonald Gregory E. ; Moehlenbrock Andrew W. ; Carson John, Bag with an access hole in one panel.
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Dieter, William M., Customization kit for articles of footwear.
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Su Philip,HKX, Easy open method, package, and apparatus.
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Simon P. Edwards, Flexible bag.
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Sanfilippo, James J.; Sanfilippo, John E.; Skaggs, Jeanne M.; Soria, Francisco Javier; Radenovic, Milorad; Wyslotsky, Bohdan; Georgelos, Paul; Montefusco, Pat; Speer, Roy; Forowycz, Roman, Flexible package and method of making same.
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Sanfilippo, James J.; Sanfilippo, John E.; Skaggs, Jeanne M.; Soria, Francisco Javier; Radenovic, Milorad; Wyslotsky, Bohdan; Georgelos, Paul; Montefusco, Pat; Speer, Roy; Forowycz, Roman, Flexible package and method of making the same.
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Sanfilippo, James J.; Sanfilippo, John E.; Skaggs, Jeanne M.; Soria, Francisco Javier; Radenovic, Milorad; Wyslotsky, Bohdan; Georgelos, Paul; Montefusco, Pat; Speer, Roy; Forowycz, Roman, Flexible stackable package.
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Sanfilippo, John E.; Sanfilippo, James J.; Skaggs, Jeanne M.; Speer, Roy, Flexible, stackable container and method and system for manufacturing same.
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Sanfilippo, John E.; Sanfilippo, James J.; Skaggs, Jeanne M.; Speer, Roy, Flexible, stackable container and method and system for manufacturing the same.
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Sanfilippo, John E.; Sanfilippo, James J.; Skaggs, Jeanne M.; Speer, Roy, Flexible, stackable container and method and system for manufacturing the same.
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Sanfilippo, John E.; Sanfilippo, James J.; Skaggs, Jeanne M.; Speer, Roy, Flexible, stackable container and method and system for manufacturing the same.
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Sanfilippo, John E.; Sanfilippo, James J.; Skaggs, Jeanne M.; Speer, Roy, Flexible, stackable container including a lid and package body folded from a single sheet of film.
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Sanfilippo, John E.; Sanfilippo, James J.; Skaggs, Jeanne M.; Speer, Roy, Flexible, stackable container used for storing a quantity of product and method for manufacturing same.
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Sanfilippo, John E.; Sanfilippo, James J.; Skaggs, Jeanne M.; Speer, Roy, Flexible, stackable container used for storing a quantity of product and method for manufacturing same.
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Sanfilippo, John E.; Sanfilippo, James J.; Skaggs, Jeanne M.; Speer, Roy, Flexible, stackable sealed package having corner seals and formed from a sheet of film.
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Fowler Margaret E.,CAXITX V4T 2L8, Foldable self-standing carry-all.
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Cahill, Michael John; Seaward, David Robert, Method and apparatus for obtaining individual web sections from a web of sheet material.
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Pansier, Donald J.; Holtz, Kurt R.; Hathaway, John M.; Winicki, Greg S., Method and apparatus for producing valve bags.
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Walsh, Joseph C.; Sloat, Jeffrey T., Method and system for manufacturing bags.
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Su, Frank F., Method for manufacturing a thermoplastic bag.
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Ligon, Robert J.; Ramalho, Trevor A., Method of and apparatus for manufacture of a squeezable flexible package.
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Little, Richard, Method of forming a valve bag.
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Ligon, Robert J.; Ramalho, Trevor A., Method of manufacture for a squeezable flexible package.
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Fitzwater, Kelly R., Reinforced package.
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Fitzwater, Kelly R.; Strand, Scott Thomas, Reinforced package.
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Kastanek, Raymond S., Reinforced package.
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Kastanek, Raymond S.; Fitzwater, Kelly R., Reinforced package.
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McDonald Gregory E. ; Moehlenbrock Andrew W. ; Carson John, bag with an access hole in one panel.
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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

내보내기 구분	파일저장 인쇄 메일전송
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저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
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Method of making a stand-up plastic bag 원문보기

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Method of making a stand-up plastic bag 원문보기

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이 특허를 인용한 특허 (28)

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