US4182791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making a composite body
Assignee: Individual
•
Filing: 1978-03-24
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Granted: 1980-01-08
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Expires: 1998-03-24
Abstract
Abstract A composite body having a portion of a thermosetting material and a portion of a thermoplastics material is formed by including a layer of fabric having a serrated surface between the two portions as a connecting means. The fabric with its serrated surface facing outwards is applied to an area of a thermosetting material after which a thermoplastics material in particulate form is intimately mixed into the serrations of the fabric. The composite body, such as a weaving shuttle, is then pressed, fused and cured.
Inventors
- 👤 Otto Meyering
- 👤 Wilhelm Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:51
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/12; B29; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/16; B29C70/22; B32B38/00; B32B38/08; D; D03; D03J; D03J5/00; B32B2260/00; B32B2260/02; B32B2260/04; B32B2260/046; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31859; Y10T428/31877; Y10T442/00; Y10T442/30; Y10T442/3472; Y10T442/3528; Y10T442/3569
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
111 words
Process for making a composite member having a portion of thermoplastics material and a portion of thermosetting material comprising the steps of: (i) impregnating fabric with a liquid thermosetting material; (ii) drying the impregnated fabric; (iii) piling the dried impregnated fabric in the form of sheets to form a thermoset assembly; (iv) applying on at least one surface of the thermoset assembly a layer having a serrated surface; (v) applying to the said serrated surface the thermoplastics material in particular form; (vi) applying pressure and heat to a composite assembly so formed to cure the thermosetting laminate, fuse the thermoplastics material and bond the composite assembly together in the desired form.
Claim 2
Dependent Claim
111 words
Process for making a composite member having a portion of thermoplastics material and a portion of thermosetting material comprising the steps of: (i) impregnating fabric with a liquid thermosetting material; (ii) drying the impregnated fabric; (iii) piling the dried impregnated fabric in the form of sheets to form a thermoset assembly; (iv) applying on at least one surface of the thermoset assembly a layer having a serrated surface; (v) applying to the said serrated surface the thermoplastics material in particular form; (vi) applying pressure and heat to a composite assembly so formed to cure the thermosetting laminate, fuse the thermoplastics material and bond the composite assembly together in the desired form.
Claim 3
Dependent Claim
42 words
Process as claimed in claim 1 wherein the layer with the serrated surface and then the thermoplastics material is applied on both sides of the thermosetting "laminate" to produce a composite member with thermoplastics material on each side of the thermosetting material.
Claim 4
Dependent Claim
65 words
Process as claimed in claim 1 including the further steps between steps (v) and (vi) of superposing an additional layer having a serrated surface directly on the surface of the thermoplastics material and then applying a further assembly of dried fabric impregnated with thermosetting material on said additional layer whereby to produce a composite member with thermosetting material on each side of the thermoplastics material.
Claim 5
Dependent Claim
26 words
Process as claimed in claim 1 including the additional step (v') between steps (v) and (vi) of pressing the materials together to form a coherent body.
Claim 6
Dependent Claim
38 words
Process as claimed in claim 4 including the additional step (v") between steps (v') and (vi) of taking two portions of coherent body resulting from step (v') and juxtaposing these portions with their thermoplastics materials towards each other.
Claim 7
Dependent Claim
27 words
Process as claimed in claim 1 wherein a fibrous material is mixed with thermoplastic material in particulate form prior to its application to the said serrated surface.
Claim 8
Dependent Claim
14 words
Process as claimed in claim 6 wherein the fibrous material consists of cotton fibres.
Claim 9
Dependent Claim
14 words
Process as claimed in claim 6 wherein the fibrous material consists of fabric shreds.
Claim 10
Dependent Claim
15 words
Process as claimed in claim 1 wherein the thermosetting material is a phenol resol resin.
Claim 11
Dependent Claim
12 words
A composite member made by the process as claimed in claim 1.
Claim 12
Dependent Claim
16 words
A composite member as claimed in claim 10 wherein the composite member is a weaving shuttle.
References Cited (Backward Citations)
GB303898A
Cited
US2263792A
Cited
US2625499A
Cited
US2936261A
Cited
DE2141472C3
Cited
US3900360A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-01-07 | 1983-07-09 | 1984-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-07 | 1987-07-09 | 1988-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-07 | 1991-07-09 | 1992-01-08 | $7700.00 | Window Closed / Lapsed |