US4808450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Side body molding for attachment to a vehicle body
Assignee: Sterling Engineered Products Inc
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Filing: 1986-07-10
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Granted: 1989-02-28
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Expires: 2006-07-10
Abstract
Abstract The present invention concerns an apparatus and process for producing an improved extruded plastic material product which consists of an inner foamed thermoplastic cellular core and an outer non-porous thermoplastic skin extending along at least one side of the core. In the process, a foamable thermoplastic material is extruded through a first die outlet to produce a foamed thermoplastic material. After exiting the die outlet, a film of non-porous thermoplastic material is applied along at least one side of extruded foamed material. Next, the extruded foamed material and the non-porous film is fed through a forming die which shapes and seals the materials into the desired cross-sectional shape.
Inventors
- 👤 Robert R. Guy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:04
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/18; B29; B29C; B29C44/00; B29C44/20; B29C44/32; B29C44/321; B29C44/34; B29C44/36; B29C44/46; B29C44/50; B29C44/505; B29C44/56; B29C48/00; B29C48/001; B29C48/0013; B29C48/0014; B29C48/03; B29C48/12; B29C48/16; B29C48/18; B29C48/21; B29C48/07; B29L; B29L2031/00; B29L2031/58; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/249988; Y10T428/249991; Y10T428/249992
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
74 words
A molding of predetermined cross sectional design comprising: a core of foamed thermoplastic material having an open or porous surface area and an opposite surface for attachment to a structure; and an outer film or skin of substantially non-porous thermoplastic material superimposed on and integrally sealed to the porous surface area of said core, said outer film and core being shaped and integrally sealed together after superimposition to provide said predetermined cross sectional design.
Claim 2
Dependent Claim
74 words
A molding of predetermined cross sectional design comprising: a core of foamed thermoplastic material having an open or porous surface area and an opposite surface for attachment to a structure; and an outer film or skin of substantially non-porous thermoplastic material superimposed on and integrally sealed to the porous surface area of said core, said outer film and core being shaped and integrally sealed together after superimposition to provide said predetermined cross sectional design.
Claim 3
Dependent Claim
13 words
The molding defined in claim 1, wherein both said thermoplastic materials are polyvinylchloride.
Claim 4
Dependent Claim
20 words
The molding defined in claim 1, wherein said core and outer skin are composed of different but compatible thermoplastic materials.
Claim 5
Dependent Claim
87 words
A side body molding of predetermined cross sectional design for attachment to a vehicle body comprising: a core of foamed thermoplastic material having a first surface area and an opposite surface for attachment to the vehicle body; and an outer skin of substantially non-porous thermoplastic material superimposed on and integrally sealed to said first surface of the core and including an exposed surface having a glossy finish, said skin and core being simultaneously shaped and integrally sealed together after superimposition to provide said predetermined cross sectional design.
Claim 6
Dependent Claim
87 words
A side body molding of predetermined cross sectional design for attachment to a vehicle body comprising: a core of foamed thermoplastic material having a first surface area and an opposite surface for attachment to the vehicle body; and an outer skin of substantially non-porous thermoplastic material superimposed on and integrally sealed to said first surface of the core and including an exposed surface having a glossy finish, said skin and core being simultaneously shaped and integrally sealed together after superimposition to provide said predetermined cross sectional design.
Claim 7
Dependent Claim
29 words
The molding defined in claim 4, wherein said outer skin is substantially transparent, and including a decorative film interposed at selected locations between said core and said outer skin.
Claim 8
Dependent Claim
15 words
The molding defined in claim 4, including a decorative pigment dispersed within said outer skin.
Claim 9
Dependent Claim
23 words
The molding defined in claim 4, wherein the density of said core is approximately 70 percent of the density of said outer skin.
Claim 10
Dependent Claim
22 words
The molding defined in claim 4, wherein said outer skin has a thickness in the range of from 0.3 to 1 mm
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-02-28 | 1992-08-29 | 1993-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-28 | 1996-08-29 | 1997-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-28 | 2000-08-29 | 2001-02-28 | $7700.00 | Window Closed / Lapsed |