US4045604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recoverable article with outwardly extending hollow heat flanges; kit including such article and a cylindrical substrate; and method of making such article
Assignee: Raychem Ltd
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Filing: 1975-10-07
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Granted: 1977-08-30
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Expires: 1995-10-07
Abstract
Abstract A hollow structure for use as an electrical insulator or other similar structure having outwardly disposed flanges extending circumferentially thereabout. The hollow structure includes a hollow member of heat recoverable material positionable about a central insulator core, electrical conduit, fuse or other substrate. The outwardly extending flanges are integrally formed with the hollow member and extend radially therefrom in the dimensionally heat stable state. The hollow member is designed to be expanded to a heat recoverable state for later facile positioning about an appropriate substrate. The hollow member may then be heat recovered about the substrate to become securely positioned thereon. Proper selection of the hollow member as to its dimensionally heat stable inner diameter relative to the inner diameter of the substrate results in control of the orientation of the flanges once the hollow structure has been recovered about the substrate.
Inventors
- 👤 Robin J. T. Clabburn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:37
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/66; B29C63/00; B29C63/38; B29C63/42; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/20; B29C66/24; B29C66/242; B29C66/2422; B29C66/24221; B29C66/50; B29C66/51; B29C66/53; B29C66/532; B29C66/534; H; H01; H01B; H01B17/00; H01B17/32; H01H; H01H85/00; H01H85/02; H01H85/04; H01H85/05; H01H85/165; H02; H02G; H02G15/00; H02G15/02; H02G15/06; B29C66/70; B29C66/72; B29C66/721; B29L; B29L2031/00; B29L2031/34; B29L2031/3412; Y; Y10; Y10S; Y10S174/00; Y10S174/08; Y10S428/00; Y10S428/91; Y10S428/913; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49227; Y10T29/49481; Y10T29/49826; Y10T29/49863; Y10T29/49865; Y10T428/00; Y10T428/13; Y10T428/1328; Y10T428/1331
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
92 words
A heat recoverable article for covering a substrate, comprising a hollow member of heat recoverable material, said hollow member having an elongate cavity of uniform cross section; and a plurality of outwardly extending flanges integrally molded with said hollow member and extending around at least a portion of said hollow member, said flanges being heat recoverable adjacent said hollow member, being in substantially identical orientation with one another and being capable of retaining substantially identical orientation with one another upon heat recovery of said hollow member and said flanges about a substrate.
Claim 2
Dependent Claim
92 words
A heat recoverable article for covering a substrate, comprising a hollow member of heat recoverable material, said hollow member having an elongate cavity of uniform cross section; and a plurality of outwardly extending flanges integrally molded with said hollow member and extending around at least a portion of said hollow member, said flanges being heat recoverable adjacent said hollow member, being in substantially identical orientation with one another and being capable of retaining substantially identical orientation with one another upon heat recovery of said hollow member and said flanges about a substrate.
Claim 3
Dependent Claim
29 words
The heat recoverable article of claim 1 wherein said flanges are capable of assuming a radial orientation relative to said hollow member upon unrestrained recovery of said hollow member.
Claim 4
Dependent Claim
17 words
The heat recoverable article of claim 1 wherein each said flange extends completely around said hollow member.
Claim 5
Dependent Claim
14 words
The heat recoverable article of claim 1 wherein said hollow member is substantially cylindrical.
Claim 6
Dependent Claim
51 words
The heat recoverable article of claim 4 wherein the inner surface of said hollow member has at least one longitudinally extending deformity therein whereby escape of air from between said hollow member and a substrate about which the hollow member may be recovered is facilitated during recovery of said hollow member.
Claim 7
Dependent Claim
16 words
The heat recoverable article of claim 4 wherein said cavity is of substantially polygonal cross section.
Claim 8
Dependent Claim
93 words
A kit for a composite article, comprising an elongate, substantially cylindrical substrate; a hollow member of heat recoverable material, said hollow member having an elongate, substantially cylindrical cavity; and a plurality of outwardly extending flanges integrally molded with said hollow member and extending around at least a portion of said hollow member, said flanges being heat recoverable adjacent said hollow member, being in substantially identical orientation with one another and being capable of retaining substantially identical orientation with one another upon heat recovery of said hollow member and said flanges about said substrate.
Claim 9
Dependent Claim
93 words
A kit for a composite article, comprising an elongate, substantially cylindrical substrate; a hollow member of heat recoverable material, said hollow member having an elongate, substantially cylindrical cavity; and a plurality of outwardly extending flanges integrally molded with said hollow member and extending around at least a portion of said hollow member, said flanges being heat recoverable adjacent said hollow member, being in substantially identical orientation with one another and being capable of retaining substantially identical orientation with one another upon heat recovery of said hollow member and said flanges about said substrate.
Claim 10
Dependent Claim
46 words
The kit for a composite article of claim 7 wherein said holow member is capable of heat recovery such that the inner dimensions of said hollow member are capable of unrestricted recovery to about between 98% and 87% of the corresponding outer dimensions of said substrate.
Claim 11
Independent Claim
71 words
A method for making a heat recoverable article having a hollow, substantially cylindrical member for covering a substrate and outwardly extending flanges symmetrical about the hollow, substantially cylindrical member including the steps of molding said member with radially outwardly extending flanges; expanding the member to a first heat recoverable state; controlling the orientation of the flanges during expansion of the member; and cooling the member and flanges to a rigid state.
Claim 12
Independent Claim
71 words
A method for making a heat recoverable article having a hollow, substantially cylindrical member for covering a substrate and outwardly extending flanges symmetrical about the hollow, substantially cylindrical member including the steps of molding said member with radially outwardly extending flanges; expanding the member to a first heat recoverable state; controlling the orientation of the flanges during expansion of the member; and cooling the member and flanges to a rigid state.
References Cited (Backward Citations)
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US3604830A
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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) | 1980-08-29 | 1981-02-28 | 1981-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-29 | 1985-02-28 | 1985-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-29 | 1989-02-28 | 1989-08-30 | $7700.00 | Window Closed / Lapsed |