[특허]Method for making flat bottom plastic bag

Method for making flat bottom plastic bag 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B31B-033/26 B31B-033/00
출원번호	US-0401773 (1989-09-01)
발명자 / 주소	Ross Philip E. (P.O. Box 21852 Ft. Lauderdale FL 33335) Brown deceased Martin J. (2501 Havana Dr. late of Pembroke Pines FL) Hagenburg heir Maureen (2501 Havana Dr. Miramar FL 33023) Brown heir
인용정보	피인용 횟수 : 31 인용 특허 : 0

초록 ▼

A method is disclosed of constructing a flat bottom in a plastic film tube having an open upper end, a closed lower end formed by a transverse seal, forward and rearward sides and a pair of opposing pleated sides that interconnect the forward and rearward sides. The method includes the steps of releasably engaging a lower vacuum and a lower clamp with a transverse section of the rearward side of the tube to provisionally hold the transverse section. A lateral section of the forward side is gripped and raised by an upper vacuum and an upper clamp to expose a portion of the pleated sides such that first and second pockets are formed, respectively, in the sides. The sealed lower end is drawn toward the upper end to fold the tube along first and second transverse fold lines in the forward side, along a third transverse fold line in the transverse section of the rearward side, and along fourth and fifth fold lines, respectively, in the pleated sides such that the first and second pockets are located in the pleated sides, respectively between the first and third fold lines and the lower end of the bag. Pressure is applied to the tube to form creases along the first, third, fourth and fifth fold lines, which define the perimeter of the flat bottom of the tube.

대표청구항 ▼

A method of constructing a flat bottom in a plastic film tube having an open upper end, a closed lower end formed by a transverse seal, forward and rearward sides and a pair of opposing pleated sides that interconnect the forward and rearward sides comprising the steps of: releasably engaging first a lower vacuum and then a lower clamp with a transverse section of said rearward side of the tube to provisionally hold said transverse section; gripping a lateral section of said forward side with first an upper vacuum and then an upper clamp and raising said lateral section to expose a portion of said pleated sides such that first and second pockets are formed, respectively, in the said sides; drawing said sealed lower end toward said upper end to fold the tube along first and second transverse fold lines in the forward side, along a third transverse fold line in said transverse section of said rearward side, and along fourth and fifth fold lines, respectively, in said pleated sides such that said first and second pockets are located in said pleated sides, respectively between said first and third fold lines and the lower end of said tube; and applying pressure to the tube to form creases along said first, third, fourth and fifth fold lines, whereby the creases define the perimeter of the flat bottom of the tube.

이 특허를 인용한 특허 (31)

Chaturvedi, Ashok, Apparatus and a method for making packages and a package thereof.
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Ross Philip E., Apparatus for forming flat-bottomed plastic bags.
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Achelpohl Fritz,DEX ; Feldkamper Richard,DEX ; Kampschulte Andreas,DEX ; Kohn Uwe,DEX, Apparatus for manufacturing cross bottom sacks.
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Joseph, Stephen C. P.; Douglas, Malcolm F.; Butler, Alan F.; Bastow, David R.; Salhus, Jerome E.; Hartfel, Margaret A., Apparatus for spraying liquids, and adapters and liquid reservoirs suitable for use therewith.
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Joseph, Stephen C. P.; Douglas, Malcolm F.; Butler, Alan F.; Bastow, David R.; Salhus, Jerome E.; Hartfel, Margaret A., Apparatus for spraying liquids, and adapters and liquid reservoirs suitable for use therewith.
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Joseph, Stephen C. P.; Douglas, Malcolm F.; Butler, Alan F.; Bastow, David R.; Salhus, Jerry E.; Hartfel, Margaret A., Apparatus for spraying liquids, and adapters and liquid reservoirs suitable for use therewith.
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Joseph, Stephen C. P.; Butler, Alan F., Apparatus for spraying liquids, and disposable containers and liners suitable for use therewith.
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Joseph, Stephen C. P.; Douglas, Malcolm F.; Butler, Alan F., Apparatus for spraying liquids, and disposable containers and liners suitable for use therewith.
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Joseph, Stephen C. P.; Douglas, Malcolm F.; Butler, Alan F., Apparatus for spraying liquids, and disposable containers and liners suitable for use therewith.
상세보기
Joseph, Stephen C. P.; Douglas, Malcolm F.; Butler, Alan F.; Bastow, David R.; Salhus, Jerry E.; Hartfel, Margaret A., Apparatus for spraying liquids, and disposable containers and liners suitable for use therewith.
상세보기
Joseph, Stephen C. P.; Douglas, Malcolm F.; Butler, Alan F.; Bastow, David R.; Salhus, Jerry E.; Hartfel, Margaret A., Apparatus for spraying liquids, and disposable containers and liners suitable for use therewith.
상세보기
Joseph, Stephen C.P.; Douglas, Malcolm F.; Butler, Alan F.; Bastow, David R.; Salhus, Jerry E.; Hartfel, Margaret A., Apparatus for spraying liquids, and disposable containers and liners suitable for use therewith.
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Post, William E.; Lanham, Larry L., Former for forming a rectangular bag tube.
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Gerson, Ronald L.; Brunell, Robert A.; Anteski, David, Liquid container system for a spray gun.
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Gerson, Ronald L; LaPointe, Pierre; Brunell, Robert A, Liquid supply assembly.
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Lotto Ronald L. ; Romenesko Scott ; Hatchell Peter, Method and apparatus for making internally-reinforced bag assembly.
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Post, William E.; Lanham, Larry L., Method and apparatus for manufacturing a bag having an indent bottom wall.
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Broering, Shaun T.; Waldron, Matthew W., Method for inserting a first folded film within a second folded film.
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Tetenborg, Konrad; Koehn, Uwe; Maneke, Siegfried; Weber, Jan Thorsten, Method for the production of bags.
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Baumer Josef,DEX, Method of and apparatus for making a bottom of a tubular section for formation of a bag or sack.
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Wold,James Trygve; Madej,Edward Stanley, Method of folding flat bottom bag.
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Sondaar, Jaap Jeroen, Method of manufacturing a foldable bag and a foldable bag.
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Piraneo, Carmelo, Method of manufacturing a stand-up bag.
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Kolbe Wilfried,DEX ; Van Den Maagdenberg Hans-Rudolph,NLX ; Niemeyer Gunter,DEX ; Obermeier Diethard,DEX ; Schirrich Klaus,DEX, Method of manufacturing flat-bottom bags with a glued-on bottom lining.
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Pellegrino, Biagio P.; Zoellner, Clemens E.; Nixon, Thomas R.; Chilton, Christopher J., Method of using a paint cup assembly.
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Pellegrino, Biagio P.; Zoellner, Clemens E.; Nixon, Thomas R., Paint cup assembly.
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Pellegrino, Biagio P.; Zoellner, Clemens E.; Nixon, Thomas R.; Chilton, Christopher J., Paint cup assembly with an extended ring.
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Pellegrino, Biagio P; Zoellner, Clemens E.; Nixon, Thomas R.; Chilton, Christopher J., Paint cup assembly with an outlet valve.
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Totani, Mikio, Plastic bag making apparatus.
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Yeh, Yong-Tsang, Seal cutter for plastic bag.
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Binger, Scott; Bergman, Carl L.; MacPherson, Jack A.; Deason, Howard, Trash bag with odor control and method of making same.
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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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Method for making flat bottom plastic bag 원문보기

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Method for making flat bottom plastic bag 원문보기

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이 특허를 인용한 특허 (31)

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