US4766031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integral foam body and method of manufacturing the same
Assignee: Gebrueder Koemmerling Kunststoffwerke GmbH
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Filing: 1986-08-19
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Granted: 1988-08-23
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Expires: 2006-08-19
Abstract
Abstract An integral foam body has a body part composed of an extruded hard thermoplastic material with a plurality of staple fibers of high tensile strength embedded in the thermoplastic material.
Inventors
- 👤 Walter Kohl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:26
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/34; B29C44/36; B29C44/46; B29C44/50; B29C48/00; B29C48/03; B29C48/09; B29C48/11; B29C48/05; B29C48/06; B29C48/07; B29C48/15; B29C48/154; B29C48/16; B29C48/18; B29C48/21; B29K; B29K2027/00; B29K2027/06; B29K2105/00; B29K2105/04; B29K2105/06; B29K2105/12; B29K2105/26; B29L; B29L2024/00; B29L2024/006; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24744; Y10T428/249921; Y10T428/249953; Y10T428/249986; Y10T428/249987; Y10T428/249988; Y10T428/249989
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
130 words
An integral foam body, comprising a body part formed by extrusion of hard polyvinyl chloride foam; a plurality of staple fibers having a high tensile strength and a length of between 2 and 20 mm, said staple fibers being embedded in said body part in a randomly distributed manner and being provided in a quantity of between 10 and 20 weight percent relative to the weight of said body part; and a non-porous closed outer skin formed integrally with said body part and having an outer surface, the staple fibers being also embedded in said outer skin, and said hard polyvinyl chloride not affecting formation of the outer surface in that the outer surface remains smooth despite embedding of said staple fibers in the foamed body including the outer skin.
Claim 2
Dependent Claim
130 words
An integral foam body, comprising a body part formed by extrusion of hard polyvinyl chloride foam; a plurality of staple fibers having a high tensile strength and a length of between 2 and 20 mm, said staple fibers being embedded in said body part in a randomly distributed manner and being provided in a quantity of between 10 and 20 weight percent relative to the weight of said body part; and a non-porous closed outer skin formed integrally with said body part and having an outer surface, the staple fibers being also embedded in said outer skin, and said hard polyvinyl chloride not affecting formation of the outer surface in that the outer surface remains smooth despite embedding of said staple fibers in the foamed body including the outer skin.
Claim 3
Dependent Claim
27 words
An integral foam body as defined in claim 1, wherein said staple fibers are selected from the group consisting of mineral fibers, glass fibers and carbon fibers.
Claim 4
Dependent Claim
18 words
An integral foam body as defined in claim 1, wherein said body part is formed as a bar.
Claim 5
Dependent Claim
18 words
An integral foam body as defined in claim 1, wherein said body part is formed as a plate.
Claim 6
Dependent Claim
18 words
An integral foam body as defined in claim 1, wherein said body part is formed as a pipe.
Claim 7
Dependent Claim
30 words
An integral foam body as defined in claim 1, wherein said fibers are provided in the quantity of approximately 15 weight percent relative to the weight of said body part.
Claim 8
Dependent Claim
22 words
An integral foam body as defined in claim 1, wherein said staple fibers have a length of between 4 and 6 mm.
Claim 9
Dependent Claim
19 words
An integral foam body as defined in claim 7, wherein said fibers have a length of approximately 4.5 mm.
Claim 10
Dependent Claim
21 words
An integral foam body as defined in claim 1, wherein said fibers have a thickness of between 3 and 15 μm.
Claim 11
Dependent Claim
21 words
An integral foam body as defined in claim 9, wherein said fibers have a thickness of between 10 and 13 μm.
Claim 12
Dependent Claim
20 words
An integral foam body as defined in claim 1, wherein said fibers are glass fibers coated with an adhesive agent.
Claim 13
Dependent Claim
25 words
An integral foam body as defined in claim 1, and further comprising a carrier member, said body with said staple fibers extrusion-coating said carrier member.
Claim 14
Dependent Claim
26 words
An integral foam body as defined in claim 12, wherein said body with said carrier member is formed as a frame bar for a door frame.
Claim 15
Dependent Claim
24 words
An integral foam body as defined in claim 12, wherein said body with said carrier is formed as a frame bar for a window.
Claim 16
Dependent Claim
21 words
An integral foam body as defined in claim 12, said body with said carrier member is formed as a coating bar.
Claim 17
Dependent Claim
22 words
An integral foam body as defined in claim 12, wherein said body with said carrier member is formed as a coating board.
Claim 18
Dependent Claim
22 words
An integral foam body as defined in claim 12, wherein said body with said carrier member is formed as a fence railing.
Claim 19
Dependent Claim
22 words
An integral foam body as defined in claim 12, wherein said body with said carrier member is formed as a balcony railing.
Claim 20
Dependent Claim
22 words
An integral foam body as defined in claim 14, wherein said hard polyvinyl chloride has a k-value of between 50 and 70.
Claim 21
Dependent Claim
22 words
An integral foam body as defined in claim 14, wherein said hard polyvinyl chloride has a k-value of between 55 and 63.
References Cited (Backward Citations)
US3474048A
Cited
DE1913921A1
Cited
DE1729076A1
Cited
US3764642A
Cited
US4163824A
Cited
DE2745373A1
Cited
DE3016333A1
Cited
US4399086A
Cited
DE3011692A1
Cited
DE3113810A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-08-23 | 1992-02-22 | 1992-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-23 | 1996-02-22 | 1996-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-23 | 2000-02-22 | 2000-08-23 | $7700.00 | Window Closed / Lapsed |