US4795509A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indicator for dimensionally-recoverable sleeves
Assignee: NV RAYCHEM SA DIESTSESTEENWEG 692 3200 KESSEL-10 BELGIUM
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Filing: 1987-03-17
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Granted: 1989-01-03
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Expires: 2007-03-17
Abstract
Abstract A wraparound recoverable article comprises longitudinally opposed edge regions which can be brought together to close the article. On recovery of the article a configurational change of or adjacent the closure member can be seen. This can be used as a temperature indicator to show that recovery is complete. Preferably the configurational change is a rotation of the material at the edge regions which results in a white line extending along the length of the closure, and which is not visible before recovery, becoming visible.
Inventors
- 👤 Erwin De Bruycker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:40
CPC Classifications
H; H02; H02G; H02G15/00; H02G15/08; H02G15/18; H02G15/1806; H02G15/1813; B; B29; B29C; B29C61/00; B29C61/06; B29C61/0608; B29C61/0666; B29C61/10; Y; Y10; Y10S; Y10S174/00; Y10S174/08; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/13; Y10T428/1328
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
55 words
A dimensionally-recoverable wrap-around sleeve having a closure member by means of which opposing edge portions of the sleeve can be held together to maintain the sleeve in a wrapped-around configuration, and having means comprising localized coloring of the closure member by which an extent of a configurational change of the closure member is rendered visible.
Claim 2
Dependent Claim
55 words
A dimensionally-recoverable wrap-around sleeve having a closure member by means of which opposing edge portions of the sleeve can be held together to maintain the sleeve in a wrapped-around configuration, and having means comprising localized coloring of the closure member by which an extent of a configurational change of the closure member is rendered visible.
Claim 3
Dependent Claim
14 words
A sleeve according to claim 1, in which the configurational change appears as rotation.
Claim 4
Dependent Claim
30 words
A sleeve according to claim 1, which has a said closure member at opposing edge portions thereof, which closure member can be held together by a closure channel or clamp.
Claim 5
Dependent Claim
33 words
A sleeve according to claim 1, in which the closure member comprises dimensionally-recoverable sheet material folded around an elongate member such that the extent of the fold decreases on recovery of the material.
Claim 6
Dependent Claim
18 words
A sleeve according to claim 4, in which the folded sheet material comprises edge portions of the sleeve.
Claim 7
Dependent Claim
19 words
A sleeve according to claim 1, which comprises a recoverable composite material, recoverable by virtue of recoverable fibres thereof.
Claim 8
Dependent Claim
17 words
A sleeve according to claim 1, in which the colouring comprises a light coloured paint or ink.
Claim 9
Dependent Claim
20 words
A sleeve according to claim 1, in which the colouring is provided substantially along the length of the closure member.
Claim 10
Dependent Claim
28 words
A sleeve according to claim 1, in which the colouring changes position between being visible and being invisible to an installer of the sleeve on said configurational change.
Claim 11
Dependent Claim
60 words
A sleeve according to claim 1, which has a said closure member adjacent opposing edge portions thereof, which closure members can be held together by a closure channel or clamp, said means for rendering visible comprising colouring of at least one closure member which before configurational change thereof is localized on a surface thereof that faces the other closure member.
Claim 12
Dependent Claim
16 words
A sleeve according to claim 1, having a heat-activatable sealing material on an internal surface thereof.
Claim 13
Dependent Claim
15 words
A sleeve according to claim 1, having a temperature-indicating composition on an external surface thereof.
Claim 14
Dependent Claim
21 words
A sleeve according to claim 1, in which the sleeve is heat-recoverable and in which said configurational change results from heating.
Claim 15
Dependent Claim
50 words
A method of environmentally protecting a supply line, which comprises installing around it a sleeve according to claim 1, securing the sleeve in a wrapped-around configuration, and causing dimensional recovery of the sleeve, the method comprising subjecting the sleeve to an agency to an extent indicated by said configurational change.
Claim 16
Dependent Claim
16 words
A method according to claim 14, in which the supply line comprises a telecommunications cable splice.
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) | 1992-01-03 | 1992-07-04 | 1993-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-03 | 1996-07-04 | 1997-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-03 | 2000-07-04 | 2001-01-03 | $7700.00 | Window Closed / Lapsed |