US3956541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Structural member of particulate material and method of making same
Assignee: General Cable Industries Inc
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Filing: 1974-05-02
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Granted: 1976-05-11
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Expires: 1994-05-02
Abstract
Abstract A structural member is fabricated from a mixture of scrap particles of thermoplastic wire and cable insulation, wood particles, comminuted paper, sawdust, and a suitable resin binder. The fabrication procedure is carried out by initially forming a mixture of reclaimed thermoplastic wire or cable insulation, a thermosetting binder, and one or more wood like fillers, such as wood chips, comminuted paper and sawdust and mold release agent. The mixture is then placed in a mold and is subjected to heat and pressure to form a structural member.
Inventors
- 👤 John Philip Pringle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:45
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/50; B29; B29B; B29B17/00; B29B17/0026; H; H01; H01B; H01B3/00; H01B3/18; H01B3/48; H01B3/52; B29L; B29L2031/00; B29L2031/704; B65H2701/00; B65H2701/50; B65H2701/51; B65H2701/512; B65H2701/5126; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/62; Y10; Y10S; Y10S264/00; Y10S264/911; Y10S264/913; Y10S264/914; Y10T; Y10T428/00; Y10T428/25; Y10T428/253; Y10T428/254; Y10T428/26; Y10T428/268; Y10T428/269
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
86 words
A structural member comprising in combination: a. a first component comprising a mixture of: 1. 30 to 60 weight percent of particulate membeers of scrap thermoplastic wire and cable insulation material randomly distributed throughout said member; and 2. 70 to 40 percent of particulate wood filler material filling the spaces between said thermoplastic members; and b. a second component added to said first component, comprising an effective quantity of thermosetting resin binder materials interattaching said thermoplastic and said wood filler materials to form a structural member.
Claim 2
Dependent Claim
86 words
A structural member comprising in combination: a. a first component comprising a mixture of: 1. 30 to 60 weight percent of particulate membeers of scrap thermoplastic wire and cable insulation material randomly distributed throughout said member; and 2. 70 to 40 percent of particulate wood filler material filling the spaces between said thermoplastic members; and b. a second component added to said first component, comprising an effective quantity of thermosetting resin binder materials interattaching said thermoplastic and said wood filler materials to form a structural member.
Claim 3
Dependent Claim
20 words
The structural member of claim 1 wherein said thermoplastic members have an average maximum dimension of 1/8 of an inch.
Claim 4
Dependent Claim
12 words
The structural member of claim 1 wherein the binder is phenolic resin.
Claim 5
Dependent Claim
20 words
The structural member of claim 1 wherein 11 to 18 weight percent of binder is added to said first component.
Claim 6
Dependent Claim
121 words
A structural member comprising in combination: a. a first component comprising a mixture of: 1. 30 to 60 weight percent of particulate members of scrap thermoplastic wire and cable insulation material randomly distributed through said member, 50 percent of said thermoplastic particles by weight being 1/16 to 1/4 of an inch maximum dimension; and 2. 70 to 40 weight percent of particulate wood filler material filling the spaces between said thermoplastic particles, 50 percent by weight of said wood particles being 1/8 to 3/8 of an inch maximum dimension; and b. a second component added to said first component, comprising an effective quantity of thermosetting resin binder material attaching said thermoplastic and said wood filler materials to form a structural member.
Claim 7
Dependent Claim
121 words
A structural member comprising in combination: a. a first component comprising a mixture of: 1. 30 to 60 weight percent of particulate members of scrap thermoplastic wire and cable insulation material randomly distributed through said member, 50 percent of said thermoplastic particles by weight being 1/16 to 1/4 of an inch maximum dimension; and 2. 70 to 40 weight percent of particulate wood filler material filling the spaces between said thermoplastic particles, 50 percent by weight of said wood particles being 1/8 to 3/8 of an inch maximum dimension; and b. a second component added to said first component, comprising an effective quantity of thermosetting resin binder material attaching said thermoplastic and said wood filler materials to form a structural member.
Claim 8
Dependent Claim
12 words
The structural member of claim 5 wherein said binder is phenolic resin.
Claim 9
Dependent Claim
21 words
The structural member of claim 5 wherein 11 to 18 weight percent of said binder is added to said first component.
Claim 10
Dependent Claim
103 words
A structural member comprising in combination: a. 21 to 51 weight percent of particulate members of scrap thermoplastic wire and cable insulation material randomly distributed through said member, 50 percent by weight of said thermoplastic particles being 1/16 to 1/4 inch maximum dimension; b. 34 to 63 weight percent of particulate wood filler material filling the spaces between said thermoplastic members, 50 percent by weight of said wood filler particles being 1/8 to 3/8 of an inch maximum dimension; and c. 10 to 15 weight percent phenolic resin binder materials interattaching said thermoplastic materials and said wood filler to form a structural member.
Claim 11
Dependent Claim
103 words
A structural member comprising in combination: a. 21 to 51 weight percent of particulate members of scrap thermoplastic wire and cable insulation material randomly distributed through said member, 50 percent by weight of said thermoplastic particles being 1/16 to 1/4 inch maximum dimension; b. 34 to 63 weight percent of particulate wood filler material filling the spaces between said thermoplastic members, 50 percent by weight of said wood filler particles being 1/8 to 3/8 of an inch maximum dimension; and c. 10 to 15 weight percent phenolic resin binder materials interattaching said thermoplastic materials and said wood filler to form a structural member.
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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) | 1979-05-11 | 1979-11-10 | 1980-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-11 | 1983-11-10 | 1984-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-11 | 1987-11-10 | 1988-05-11 | $7700.00 | Window Closed / Lapsed |