US4016356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat recoverable article
Assignee: Raychem Ltd
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Filing: 1976-02-02
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Granted: 1977-04-05
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Expires: 1996-02-02
Abstract
Abstract A heat recoverable article for shielding junctions in cables or conduits comprising a corrugated sheath in part capable of radial deformation disposed within a member of heat-recoverable material part of the sheath having transverse corrugations that resist deformation. A sheath made of conductive material may function to protect the junction from radio frequency interference. The ends of the member may be provided with adhesive to render the junction impermeable to water, gases, etc.
Inventors
- 👤 Robert H. McLoughlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:08
CPC Classifications
H; H02; H02G; H02G15/00; H02G15/08; H02G15/18; H02G15/1806; B; B29; B29C; B29C61/00; B29C61/06; B29C61/0608; B29C61/0616; H02G15/184; H02G15/188; Y; Y10; Y10S; Y10S174/00; Y10S174/08; Y10S285/00; Y10S285/909; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/13; Y10T428/1328
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
70 words
A heat recoverable article comprising a first hollow member composed of heat-recoverable material and an annular corrugated sheath disposed therein, the sheath having longitudinal corrugations extending over substantially the whole of its length and transverse corrugations extending over only a part of its length and being transverse to said longitudinal corrugations, the region having only longitudinal corrugations being collapsible upon the imposition of radially inward recovery force of the member.
Claim 2
Dependent Claim
70 words
A heat recoverable article comprising a first hollow member composed of heat-recoverable material and an annular corrugated sheath disposed therein, the sheath having longitudinal corrugations extending over substantially the whole of its length and transverse corrugations extending over only a part of its length and being transverse to said longitudinal corrugations, the region having only longitudinal corrugations being collapsible upon the imposition of radially inward recovery force of the member.
Claim 3
Dependent Claim
23 words
An article as claimed in claim 1, wherein the transverse corrugations extend over only the central region of the length of the sheath.
Claim 4
Dependent Claim
22 words
An article as claimed in claim 2, wherein the transverse corrugations are circumferential being perpendicular to the longitudinal axis of the sheath.
Claim 5
Dependent Claim
19 words
An article as claimed in claim 3, wherein the longitudinal corrugations are parallel to longitudinal axis of the sheath.
Claim 6
Dependent Claim
13 words
An article as claimed in claim 1, wherein the sheath is electrically conductive.
Claim 7
Dependent Claim
14 words
An article as claimed in claim 1, wherein the sheath is of aluminium foil.
Claim 8
Dependent Claim
21 words
An article as claimed in claim 1, which also comprises a layer of sealant disposed between the member and the sheath.
Claim 9
Dependent Claim
22 words
An article as claimed in claim 1, wherein the sheath is substantially impermeable to water vapor, whereby corrosion protection is also provided.
Claim 10
Dependent Claim
19 words
An article as claimed in claim 1, wherein the sheath is electrically conductive, whereby electromagnetic shielding is also provided.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-04-04 | 1980-10-04 | 1981-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-04 | 1984-10-04 | 1985-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-04 | 1988-10-04 | 1989-04-05 | $7700.00 | Window Closed / Lapsed |