Continuous casting of stringers for sliding clasp fasteners

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4451421
SERIAL NO

06429202

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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The continuous casting of scoops upon tapes for a sliding clasp fastener which includes two casting rollers with peripheral cavities and an extrusion nozzle with juxtaposed tapes introduced between the nozzle and a first one of the rollers. The arrangement is such that molten plastics is introduced by the nozzle firstly into the cavities of the first roller ahead of the nip between the rollers and subsequently into the cavities of the second roller adjacent the nip. To ensure adequate solidification of the scoops before removal from the second roller the tapes are drawn off from said second roller at an angular position thereof beyond the nip.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
SCOVILL APPAREL FASTENERS INC., A CORP. OF DE.WATERTOWN, CT1

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jones, Arthur L Glenbrook, AU 7 225
Seeney, Ronald G Kingswood, AU 1 19

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Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
YKK CORPORATION (3)
* 4659301 Method of and apparatus for manufacturing molded slide fastener coupling elements 2 1984
* 5441687 Method and apparatus for manufacturing a material-backed engaging member for surface fastener 61 1993
* 5851467 Molded surface fastener and method for manufacturing the same 27 1997
 
VELCRO BVBA (1)
7395583 Hook engageable loops 4 2002
 
3M INNOVATIVE PROPERTIES COMPANY (2)
* 6106922 Coextruded mechanical fastener constructions 50 1997
* 2003/0015,819 Elastic fastener 1 2002
 
SAMSONITE IP HOLDINGS S.A R.L. (5)
* 7972549 Direct forming of non-textile fabric elements from plastic pellets 6 2003
7807247 Flexlock with headed pintle and conical buttressing 6 2008
8197922 Flexlock with headed pintle and conical buttressing 2 2010
8557160 Direct forming of non-textile fabric elements from plastic pellets 3 2011
8491979 Flexlock with headed pintle and conical buttressing 0 2012
 
BARRACUDA TECHNOLOGIES AB (1)
* 5163552 Banded fastener devices for fastening plastic film to a new reinforcement 9 1991
 
VELCRO INDUSTRIES B.V. (8)
* 4775310 Apparatus for making a separable fastener 144 1986
* 4794028 Method for continuously producing a multi-hook fastner member and product of the method 185 1986
* 4872243 Multi-hook fastener member 118 1988
* 5744080 Laminated hook fastener 44 1996
6174476 Molding fastener products having backings 27 1998
* 6248419 Laminated hook fastener 44 1998
6737147 Laminated hook fastener 17 2000
* 2004/0187,275 Laminated hook fastener 11 2004
 
The Procter & Gamble Company (1)
* 9730839 Method and apparatus for applying an elastic material to a moving substrate in a curved path 0 2016
* Cited By Examiner