Patent US2043216A successfully refreshed from Google Patents.
Patent US5173226A successfully refreshed from Google Patents.
US5173226A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of manufacturing an injected ski
Assignee: Salomon SAS
•
Filing: 1990-10-31
•
Granted: 1992-12-22
•
Expires: 2010-10-31
Abstract
Abstract Process of providing on the internal surface of the first and/or second elements of a ski a solid compatibilizer film made of polyurethane or acrylonitrile butadiene styrene or copolyamide. The film forms an interface between foam injected into the internal space of the first and second elements of the ski to promote adherence.
Inventors
- 👤 Jean-Mary Cazaillon
- 👤 Bernard Chatellard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:16
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/02; B29C44/12; B29C44/129; A; A63; A63C; A63C5/00; A63C5/12; A63C5/124; B29C44/1228; B29L; B29L2031/00; B29L2031/52; B29L2031/5263
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
212 words
A process of manufacturing an injected ski comprising the steps of injection of constituents of a hardenable foam, expanding and hardening the hardenable foam, between at least a first element and a second element, said process comprising a preliminary step during which said first element is formed by the following succeeding steps: a) providing a solid polymer base film having good adhesion properties with the hardenable foam during the ultimate injection step; b) providing said first element in the form of a substrate whose internal surfaces are formed by a reinforcement, said reinforcement comprising a member selected from the group consisting of: (1) a textile reinforcement sheet pre-impregnated with a member selected from the group consisting of: thermosetting resin and thermoplastic resin, and (2) a metallic reinforcement; c) positioning said solid film on said internal surface of said first element to cover said reinforcement; d) hot forming under pressure said solid film and said first element, after said step of positioning said solid film on said internal surface of said first element, to make said film adhere to said first element; and whereby during said injection step said solid film constitutes a screen between the hardenable foam and the reinforcement and, after injection and hardening said foam adheres perfectly to said film.
Claim 2
Dependent Claim
212 words
A process of manufacturing an injected ski comprising the steps of injection of constituents of a hardenable foam, expanding and hardening the hardenable foam, between at least a first element and a second element, said process comprising a preliminary step during which said first element is formed by the following succeeding steps: a) providing a solid polymer base film having good adhesion properties with the hardenable foam during the ultimate injection step; b) providing said first element in the form of a substrate whose internal surfaces are formed by a reinforcement, said reinforcement comprising a member selected from the group consisting of: (1) a textile reinforcement sheet pre-impregnated with a member selected from the group consisting of: thermosetting resin and thermoplastic resin, and (2) a metallic reinforcement; c) positioning said solid film on said internal surface of said first element to cover said reinforcement; d) hot forming under pressure said solid film and said first element, after said step of positioning said solid film on said internal surface of said first element, to make said film adhere to said first element; and whereby during said injection step said solid film constitutes a screen between the hardenable foam and the reinforcement and, after injection and hardening said foam adheres perfectly to said film.
Claim 3
Dependent Claim
34 words
The process as defined by claim 1, wherein said textile reinforcement sheet is pre-impregnated with a moist thermosetting resin or partially cross-linked thermosetting resin selected from the group consisting of polyesters, epoxides and polyurethanes.
Claim 4
Dependent Claim
26 words
The process as defined by claim 2, wherein the textile sheet reinforcement has a base of woven or non-woven fibers made of glass, carbon or Kevlar.
Claim 5
Dependent Claim
29 words
The process as defined by claim 1, wherein the textile reinforcement sheet is pre-impregnated with a thermoplastic resin selected from the group consisting of: polyamides, polycarbonates, and polyether imides.
Claim 6
Dependent Claim
25 words
The process as defined by claim 1, wherein the metallic reinforcement is metal selected from the group consisting of steel, aluminum alloy and amorphous metal.
Claim 7
Dependent Claim
25 words
The process as defined by claim 4, wherein the textile reinforcement sheet has a base of woven or non-woven fibers made of glass or carbon.
Claim 8
Dependent Claim
24 words
The process as defined by claim 1, wherein a solid film is provided on the internal surfaces of both said first and second elements.
Claim 9
Dependent Claim
15 words
The process as defined by claim 1, wherein the solid film is made of polyurethane.
Claim 10
Dependent Claim
17 words
The process as defined by claim 1, wherein the solid film is made of acrylonitrile butadiene styrene.
Claim 11
Dependent Claim
14 words
The process as defined by claim 1, wherein the solid film is a copolyamide.
Claim 12
Dependent Claim
12 words
The process as defined by claim 1, wherein the film is multi-layered.
Claim 13
Dependent Claim
19 words
The process as defined by claim 1, wherein the solid film has a thickness between 0.1 and 1 millimeter.
Claim 14
Dependent Claim
88 words
The process of claim 1, further comprising the steps of: said second element comprising a lower ski element, said first element comprising an upper ski element; wherein said step of hot forming under pressure further comprises the step of placing said second element in said mold, whereby said first element and said second element form a closed enclosure whose internal surfaces are formed by internal surfaces of the first element and second element; and wherein said step of injecting comprises injecting said hardenable foam into said closed enclosure.
Claim 15
Dependent Claim
141 words
A process of manufacturing a ski comprising the steps of: a) providing a solid polymer film having good adhesion properties with a hardenable foam; b) providing a first element in the form of a substrate having an internal surface formed by a reinforcement, said reinforcement comprising a textile reinforcement sheet pre-impregnated with a thermosetting resin; c) positioning said solid polymer film on said internal surface of said first element to cover said reinforcement; d) placing said film and said first element in a mold; e) closing said mold and hot forming under pressure said film and said first element to make said film adhere to said first element; and f) injecting said hardenable foam into said mold, whereby said solid film screens the hardenable foam from the reinforcement and said foam, after injection and hardening, adheres securely to said solid film.
Claim 16
Dependent Claim
141 words
A process of manufacturing a ski comprising the steps of: a) providing a solid polymer film having good adhesion properties with a hardenable foam; b) providing a first element in the form of a substrate having an internal surface formed by a reinforcement, said reinforcement comprising a textile reinforcement sheet pre-impregnated with a thermosetting resin; c) positioning said solid polymer film on said internal surface of said first element to cover said reinforcement; d) placing said film and said first element in a mold; e) closing said mold and hot forming under pressure said film and said first element to make said film adhere to said first element; and f) injecting said hardenable foam into said mold, whereby said solid film screens the hardenable foam from the reinforcement and said foam, after injection and hardening, adheres securely to said solid film.
Claim 17
Dependent Claim
98 words
A process of claim 14, further comprising the steps of: providing a second element, said second element comprising a lower ski element, said first element comprising an upper ski element; wherein said step of placing said film and said first element in a mold further comprises the step of placing said second element in said mold, whereby said first element and said second element form a closed enclosure whose internal surfaces are formed by internal surfaces of the first element and second element; and wherein said step of injecting comprises injecting said hardenable foam into said closed enclosure.
Claim 18
Dependent Claim
135 words
A process of manufacturing a ski comprising the steps of: a) providing a solid polymer film having good adhesion properties with a hardenable foam; b) providing a first element in the form of a substrate having an internal surface formed by a reinforcement, said reinforcement comprising a metallic reinforcement; c) positioning said solid polymer film on said internal surface of said first element to cover said reinforcement; d) placing said film and said first element in a mold; e) closing said mold and hot forming under pressure said film and said first element to make said film adhere to said first element; and f) injecting said hardenable foam into said mold, whereby said solid film screens the hardenable foam from the reinforcement and said foam, after injection and hardening, adheres securely to said solid film.
Claim 19
Dependent Claim
135 words
A process of manufacturing a ski comprising the steps of: a) providing a solid polymer film having good adhesion properties with a hardenable foam; b) providing a first element in the form of a substrate having an internal surface formed by a reinforcement, said reinforcement comprising a metallic reinforcement; c) positioning said solid polymer film on said internal surface of said first element to cover said reinforcement; d) placing said film and said first element in a mold; e) closing said mold and hot forming under pressure said film and said first element to make said film adhere to said first element; and f) injecting said hardenable foam into said mold, whereby said solid film screens the hardenable foam from the reinforcement and said foam, after injection and hardening, adheres securely to said solid film.
Claim 20
Dependent Claim
98 words
The process of claim 16, further comprising the steps of: providing a second element, said second element comprising a lower ski element, said first element comprising an upper ski element; wherein said step of placing said film and said first element in a mold further comprises the step of placing said second element in said mold, whereby said first element and said second element form a closed enclosure whose internal surfaces are formed by internal surfaces of the first element and second element; and wherein said step of injecting comprises injecting said hardenable foam into said closed enclosure.
References Cited (Backward Citations)
DE366270C
Cited
DE1806433A1
Cited
US3503621A
Cited
US3816573A
Cited
US3879245A
Cited
US4044083A
Cited
US4259274A
Cited
EP0017792A1
Cited
US4386982A
Cited
US4457729A
Cited
EP0047038A1
Cited
JPS59145125A
Cited
FR2553669A1
Cited
US4681725A
Cited
US4725070A
Cited
US4698258A
Cited
US4758294A
Cited
EP0309403A2
Cited
US4923539A
Cited
FR2654670A1
Cited
EP0430824A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-12-22 | 1996-06-22 | 1996-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-12-22 | 2000-06-22 | 2000-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-12-22 | 2004-06-22 | 2004-12-22 | $7700.00 | Window Closed / Lapsed |