[특허]Method and apparatus for making non-roping thermoplastic draw tape for thermplastic bags

[미국특허] Method and apparatus for making non-roping thermoplastic draw tape for thermplastic bags 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B32B-031/18 B32B-031/20 B32B-035/00
출원번호	US-0312281 (1989-02-21)
발명자 / 주소	Bryniarski David A. (Rochester NY) Grosz Edward G. (Sodus Point NY)
출원인 / 주소	Mobil Oil Corporation (New York NY 02)
인용정보	피인용 횟수 : 28 인용 특허 : 9

초록

Method and apparatus for the manufacture of non-roping thermoplastic draw tape handles for insertion into thermoplastic bags and in particular for the continuous application of an adhesive coated reinforcing layer of material to the handled portion of the thermoplastic draw tape to reduce roping.

대표청구항 ▼

In a system for the manufacture of thermoplastic draw tape bags, apparatus for the continuous application of reinforcing patches of predetermined length to thermoplastic draw tape of predetermined length to produce non-roping draw tape for the bags comprising: (a) a cylindrical drum supported for rotation at a predetermined speed adjacent a sealing station in the system, said cylindrical drum having a plurality of chambers extending around the circumference thereof, the cylindrical peripheral surface of said drum having perforations therein; (b) a vacuum manifold communicating with a fractional number of said chambers to supply a vacuum to the perforations in said peripheral surface at a vacuum station spaced from the sealing station in the system, (c) means for supplying thermoplastic draw tape from a supply roll to the cylindrical surface of said drum at the sealing station for rotation therewith at the predetermined speed; (d) means for supplying reinforcing patch material from a supply roll; (e) nip roll means for unwinding the reinforcing patch material from the supply roll at a predetermined speed slower than the draw tape speed on the surface of said drum by the direct ratio of the reinforcing patch length to the draw tape length; (f) means positioned between the supply roll of reinforcing patch material and said nip roll means for perforating the reinforcing patch material, once per bag, at predetermined locations corresponding to the predetermined length of the reinforcing patches; (g) separator nip roll means at the vacuum station for forcing the perforated reinforcing patch material against the peripheral surface of said drum for rotation therewith at draw tape speed to separate a patch from the roll of reinforcing patch material at the perforations; (h) means for applying an adhesive coating to the patch material on the peripheral surface of said drum; (i) means for directing the draw tape over the adhesive coated patches on the peripheral surface of said drum between the vacuum station and the sealing station; (j) compression applying means at the sealing station for applying pressure against the draw tape to force the draw tape against the adhesive coated reinforcing patches and the reinforcing patches against the drum to cause the reinforcing patches to adhere to the draw tape as each reinforcing patch passes the sealing station; and (k) means for directing the draw tape with sealed reinforcing patches away from the sealing station for subsequent assembly of the reinforced draw tape with a thermoplastic bag.

이 특허에 인용된 특허 (9) 인용/피인용 타임라인 분석

Heyse Klaus (Bad Soden DEX) Klenk Ludwig (Hallgarten DEX), Apparatus for continuous welding or sealing of seams of plastic films.
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Herrington Fox J. (Holcomb NY), Bag having intermittent orientation draw tape and method of making.
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Boyd, Dana M., Hem seal for draw tape trash bag.
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Boyd Dana M. (Rushville NY) Catchman Vernon C. (Palmyra NY) Broderick Kevin (Victor NY), Insertion of draw tape strips in draw tape bag manufacture.
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Frick Richard H. (Neenah WI), Method and apparatus for applying discrete lengths of elastic strip material to a continuously moving web.
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Boyd Dana M. (Rushville NY) Bustin Franz (Rochester NY), Method and apparatus for forming hems in superposed pliable panels.
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Boyd Dana M. (Rushville NY) Bustin Franz (Rochester NY), Method and apparatus for manufacturing draw tape bags.
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Sabee Reinhardt N. (Appleton WI), Method for applying elastic bands to webs.
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Kuklies Milton C. (Fairport NY) Orem William G. (Fairport NY), Thermoplastic bag.
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이 특허를 인용한 특허 (28) 인용/피인용 타임라인 분석

Gamache,Brian N.; Siemiesz,Peter M.; Sutcliffe,Michael A.; Sharples,Terence, Apparatus and method for forming a hemmed edge on carton blanks.
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Colson Wendell B. ; Swiszcz Paul G., Apparatus for fabricating a light control window covering.
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Rusnak,John; Shoemaker,Jeff; Shah,Amit; O'Hara,Scott, Bag with elastic strip and method of making the same.
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Green Jace N. ; Ruggles Bryan K. ; Chacon Richard F., Cellular panel and method and apparatus for making the same.
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Green Jace N. ; Ruggles Bryan K. ; Chacon Richard F., Cellular panel and method and apparatus for making the same.
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Green Jace N. ; Ruggles Bryan K. ; Chacon Richard F., Cellular panel and method and apparatus for making the same.
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Green, Jace N.; Ruggles, Bryan K.; Chacon, Richard F., Cellular panel and method and apparatus for making the same.
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Earl, Bonnie; Smith, Kent A., Covering for an architectural opening having a sheet with a pattern.
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Earl, Bonnie; Smith, Kent A., Covering for an architectural opening having a vane with a pattern.
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Earl, Bonnie; Smith, Kent A., Covering for an architectural opening having a vane with a pattern.
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Selle Paul A. ; Gietman ; Jr. Peter J. ; Dutter Timothy R. ; Jansen Thomas C. ; Slama Frank M., Draw tape machines.
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Belias William P. ; Gueli Catherine E. ; Glod ; Sr. Lawrence J., Elastic top drawtape bag and method of manufacturing the same.
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Colson Wendell B. ; Swiszcz Paul G., Fabric light control window covering.
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Colson, Wendell B.; Swiszcz, Paul G., Fabric light control window covering.
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Colson,Wendell B.; Swiszcz,Paul G., Fabric light control window covering.
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Wendell B. Colson ; Paul G. Swiszcz, Fabric light control window covering.
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Colson Wendell B. (Boulder CO) Anthony James M. (Denver CO) Oberg Brad H. (Westminster CO) Fraser Donald E. (Owensboro KY), Fabric light control window covering with rigid vanes.
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Earl, Bonnie; Smith, Kent A., Fabric panel.
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Earl, Bonnie; Smith, Kent A., Fabric panel.
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Earl, Bonnie; Smith, Kent A., Fabric panel.
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Earl, Bonnie; Smith, Kent A., Fabric panel.
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Earl, Bonnie; Smith, Kent A., Fabric panel.
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Earl, Bonnie; Smith, Kent A., Fabric panel.
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Earl, Bonnie; Smith, Kent A., Fabric panel.
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Earl, Bonnie; Smith, Kent A., Fabric panel for coverings for architectural openings.
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Colson Wendell B. ; Swiszcz Paul G., Method for manufacturing a fabric light control window covering.
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?hman, Peter; Lasson, Rolf, Method of producing a laminate material.
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Tin T. Vo ; Wayne J. Moras ; Steven P. Long, Non-blocking elastomeric articles.
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[미국특허] Method and apparatus for making non-roping thermoplastic draw tape for thermplastic bags 원문보기