Patent US5478516A successfully refreshed from Google Patents.
US5478516A
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Method of forming strip products from thermoplastic materials
Assignee: Cooper Standard Automotive Inc
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Filing: 1994-04-07
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Granted: 1995-12-26
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Expires: 2014-04-07
Abstract
Abstract A method of forming an elongated trim strip product includes extruding a first strip of thermoplastic material from a die having an outlet with an area at least substantially as great as the desired cross-sectional area of the strip product in planes perpendicular to the direction of extrusion. Immediately subsequent to the step of extruding and while the extruded strip is still in a plastic state, it is passed longitudinally between cooperating forming rolls to shape the cross section of the extruded strip to the desired shape and cross section of the strip product. Further, while passing between the rolls a logo or lettering is formed on the strip. While the extruded strip is passing between the cooperating forming rolls, a backing strip of foil or thin metal is directed between the rolls in alignment with the extruded strip to bond the backing strip to the extruded strip. In a second embodiment, one or more cables of high strength flexible material, such as metal wire, are joined to or embedded in the extruded strip during the extrusion process to function as a pulling mechanism for moving the extruded strip through a cooling bath without stretching or deforming the extruded strip. After cooling, the cables can be severed from the strip if desired.
Inventors
- 👤 Douglas N. Malm
- 👤 Johnny R. Socausky
- 👤 Lorne J. McLelland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:09
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/16; B29C48/18; B29C48/25; B29C48/88; B29C48/919; B29C48/03; B29C48/05; B29C48/06; B29C48/07; B29C48/08; B29C48/09; B29C48/11; B29C48/12; B29C48/30; B29C48/35; B29C48/911; B29C48/9135; B29C48/90; B29C48/906
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
156 words
A method of forming an elongated trim strip comprising the steps of: extruding a first strip of thermoplastic material from a die having an outlet with areas at least substantially as great as the desired cross-sectional area of the strip in planes perpendicular to the direction of extrusion; immediately subsequent to the step of extruding and while the extruded strip is still in a plastic state, passing the extruded strip longitudinally between cooperating forming rolls to form shape the cross section of the extruded strip to a desired shape and cross section; forming a raised or indented indicia on said strip prior to significant cooling; while said strip is being extruded and its cross-section formed, joining a length of flexible cable along an edge of said strip to extend longitudinal of the strip in a continuously bonded relationship thereto; and, subsequently using the flexible cable to transfer the extruded and formed strip through a cooling bath.
Claim 2
Independent Claim
156 words
A method of forming an elongated trim strip comprising the steps of: extruding a first strip of thermoplastic material from a die having an outlet with areas at least substantially as great as the desired cross-sectional area of the strip in planes perpendicular to the direction of extrusion; immediately subsequent to the step of extruding and while the extruded strip is still in a plastic state, passing the extruded strip longitudinally between cooperating forming rolls to form shape the cross section of the extruded strip to a desired shape and cross section; forming a raised or indented indicia on said strip prior to significant cooling; while said strip is being extruded and its cross-section formed, joining a length of flexible cable along an edge of said strip to extend longitudinal of the strip in a continuously bonded relationship thereto; and, subsequently using the flexible cable to transfer the extruded and formed strip through a cooling bath.
Claim 3
Dependent Claim
25 words
The method as defined in claim 1 wherein the flexible cable is severed from the extruded and formed strip after completion of the cooling step.
Claim 4
Dependent Claim
33 words
The method as defined in claim 1 wherein the flexible cable is joined to the extruded strip by a thin web of thermoplastic material extruded simultaneously with said strip along an edge thereof.
Claim 5
Dependent Claim
27 words
The method as defined in claim 1 wherein the flexible cable is joined to the extruded strip prior to passing the strip through the cooperating forming rolls.
Claim 6
Dependent Claim
28 words
The method as defined in claim 1 wherein the flexible cable is joined to the extruded strip while the extruded strip is passing through the cooperating forming rolls.
Claim 7
Dependent Claim
39 words
The method as defined in claim 3 wherein said cable is joined along a longitudinal edge of the strip by a thin web of thermoplastic which is severed from the strip after completion of passage through the cooling bath.
Claim 8
Dependent Claim
23 words
The method as defined in claim 6 including directing the cable into bonded relationship with the strip simultaneously with the step of extruding.
Claim 9
Dependent Claim
18 words
The method as defined in claim 1 wherein said indicia is formed while passing through said forming rolls.
Claim 10
Independent Claim
114 words
A method of forming an elongated trim strip having a predetermined cross-sectional configuration transversely of its longitudinal axis comprising the steps of: extruding a first strip of hot molten thermoplastic material from a die having an outlet corresponding to the desired predetermined cross-sectional configuration; subsequent to the extruding step and prior to significant cooling of the extruded strip joining a length of flexible metal cable continuously along a longitudinal edge of the extruded strip; forming indicia on said strip prior to significant cooling; conveying the extruded strip through a cooling bath by applying pulling forces to the cable; and, after passing the extruded strip through the cooling bath severing the cable from the strip.
Claim 11
Independent Claim
114 words
A method of forming an elongated trim strip having a predetermined cross-sectional configuration transversely of its longitudinal axis comprising the steps of: extruding a first strip of hot molten thermoplastic material from a die having an outlet corresponding to the desired predetermined cross-sectional configuration; subsequent to the extruding step and prior to significant cooling of the extruded strip joining a length of flexible metal cable continuously along a longitudinal edge of the extruded strip; forming indicia on said strip prior to significant cooling; conveying the extruded strip through a cooling bath by applying pulling forces to the cable; and, after passing the extruded strip through the cooling bath severing the cable from the strip.
Claim 12
Dependent Claim
37 words
The method as defined in claim 9 including the step of extruding a thin continuous web of material along a longitudinal edge of the strip and using the extruded web to join the cable to the strip.
Claim 13
Dependent Claim
35 words
The method as defined in claim 9 including the step of shaping the extruded strip to a final desired shape by applying forming rolls thereto prior to conveying the extruded strip through the cooling bath.
Claim 14
Dependent Claim
17 words
The method as defined in claim 11 wherein said cable is extruded into the thin continuous web.
Claim 15
Dependent Claim
18 words
The method as defined in claim 9 wherein said indicia is formed while passing through said forming rolls.
Claim 16
Dependent Claim
13 words
The method as defined in claim 9 wherein said indicia is a logo.
Claim 17
Dependent Claim
12 words
The method as defined in claim 9 wherein said indicia is lettering.
References Cited (Backward Citations)
US2671041A
Cited
US3150217A
Cited
US3387330A
Cited
US3481818A
Cited
US4097634A
Cited
US4115495A
Cited
US4318764A
Cited
JPS5919114A
Cited
DE3415347A1
Cited
US4830898A
Cited
US4849045A
Cited
US5114650A
Cited
US5171499A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-12-25 | 1999-06-26 | 1999-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-12-25 | 2003-06-26 | 2003-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-12-25 | 2007-06-26 | 2007-12-26 | $7700.00 | Window Closed / Lapsed |