US4626458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recoverable article for encapsulation
Assignee: Tyco Electronics UK Ltd
•
Filing: 1983-12-30
•
Granted: 1986-12-02
•
Expires: 2003-12-30
Abstract
Abstract A recoverable article comprises a recoverable fabric, means for rendering the fabric impervious, and a shaped liner. The assembly can be used to form a pressure resistant splice case for telecommunications cables.
Inventors
- 👤 Kenneth B. Pithouse
- 👤 Thomas A. Kridl
- 👤 James T. Triplett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:21
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/001; B29D23/003; B29D23/008; B29C; B29C61/00; B29C61/006; B29C61/06; B29C61/0608; B29C61/0616; B29C61/0633; B29C61/0658; B29C61/10; B29C63/00; B29C63/38; B29C63/42; B29C65/00; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/50; B29C66/51; B29C66/53; B29C66/532; B29C66/5324; B29C66/61; B29C66/70; B29C66/72; B29C66/721; B29C66/7214; B29C66/72141; B29C66/729; B29C66/7292; B29C66/73; B29C66/737; B29C66/7371; B29C66/73715; B32; B32B; B32B27/00; B32B27/12; F; F16; F16L; F16L47/00; F16L47/20; F16L47/22; F16L58/00; F16L58/02; F16L58/04; F16L58/10; F16L59/00; F16L59/02; F16L59/028; H; H02; H02G; H02G15/00; H02G15/08; H02G15/18; H02G15/1806; H02G15/1813; B29C61/0666; B29C2061/0683; B29C2793/00; B29C2793/0081; B29C57/00; B29C65/56; B29C65/62; B29C66/20; B29C66/24; B29C66/242; B29C66/2422; B29C66/24221; B29C66/53241; B29C66/71; B29C66/7212; B29C66/739; B29C66/7392; B29K; B29K2313/00; B29K2995/00; B29K2995/0037; B29K2995/0049; Y; Y10; Y10S; Y10S174/00; Y10S174/08; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/13; Y10T428/131; Y10T428/1314; Y10T428/1328; Y10T428/1331; Y10T428/1352; Y10T428/1362; Y10T428/28; Y10T428/2852; Y10T428/2878; Y10T428/2891; Y10T442/00; Y10T442/20; Y10T442/2738; Y10T442/2746; Y10T442/2861; Y10T442/2893; Y10T442/2926; Y10T442/2992; Y10T442/60; Y10T442/696
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
73 words
An assembly for enclosing a junction between elongate substrates, which comprises: (A) a sleeve comprising a recoverable fabric; (B) means for rendering the fabric substantially impervious when the fabric is recovered; and (C) a liner for the sleeve, the liner having a central region of larger cross-section, and end regions of smaller cross-section which provide transitions from the central region to the substrate and which locate the liner with respect to the substrate.
Claim 2
Dependent Claim
73 words
An assembly for enclosing a junction between elongate substrates, which comprises: (A) a sleeve comprising a recoverable fabric; (B) means for rendering the fabric substantially impervious when the fabric is recovered; and (C) a liner for the sleeve, the liner having a central region of larger cross-section, and end regions of smaller cross-section which provide transitions from the central region to the substrate and which locate the liner with respect to the substrate.
Claim 3
Dependent Claim
18 words
An assembly according to claim 1, in which the fabric is knitted or woven from recoverable polymeric fibres.
Claim 4
Dependent Claim
16 words
An assembly according to claim 2 in which the fibres are cross-linked before knitting or weaving.
Claim 5
Dependent Claim
21 words
An assembly according to claim 1, in which the fabric is a twill, a broken twill, a satin, or a sateen.
Claim 6
Dependent Claim
21 words
An assembly according to claim 4, in which the fabric is a weave having substantially heat-stable weft, or substantially heat-stable warp.
Claim 7
Dependent Claim
13 words
An assembly according to claim 1, in which the fabric contains polyolefin fibres.
Claim 8
Dependent Claim
23 words
An assembly according to claim 1, in which the fabric contains glass fibres or fibres of an aromatic polyamide or of a polyester.
Claim 9
Dependent Claim
28 words
An assembly according to claim 1, in which the means for rendering the fabric impervious comprises a polymeric material adhered to at least one surface of the fabric.
Claim 10
Dependent Claim
24 words
An assembly according to claim 1, in which the means for rendering the fabric impervious comprises a polymeric matrix through which the fabric extends.
Claim 11
Dependent Claim
13 words
An assembly according to claim 8, in which the polymeric material is cross-linked.
Claim 12
Dependent Claim
27 words
An assembly according to claim 8, in which the polymeric material has an elongation to break of 400-700%, measured at a strain rate of 300% per minute.
Claim 13
Dependent Claim
28 words
An assembly according to claim 1, in which the liner comprises as separable components, a central tubular portion and end portions of generally frustoconical shape when in use.
Claim 14
Dependent Claim
37 words
An assembly according to claim 1, in which the liner comprises a layer of material which can be wrapped around the substrate and which has crowned end regions by means of which the transitions can be produced.
Claim 15
Dependent Claim
26 words
An assembly according to claim 1, in which the liner carries an outwardly facing valve and fabric has a hole through which the valve can pass.
Claim 16
Dependent Claim
62 words
An assembly according to claim 1, which additionally comprises at least one auxiliary member which can be interposed between the sleeve and the substrate and so positioned as to be able to be deformed by forces generated by pressure within the sleeve so that one portion of the member is forced against the sleeve and another portion is forced against the substrate.
Claim 17
Dependent Claim
40 words
An assembly according to claim 1, capable of sealing a branch-off between at least two substrates, and which additionally comprises means for holding together circumferentially spaced portions of the sleeve to close at least partially the branch-off between the substrates.
Claim 18
Dependent Claim
20 words
An assembly according to claim 16, in which the means for holding is a clip having at least two legs.
Claim 19
Dependent Claim
18 words
An assembly according to claim 1, in which the sleeve has an internal coating of a heat-activatable adhesive.
Claim 20
Dependent Claim
12 words
An assembly according to claim 1, in which the fabric is heat-recoverable.
Claim 21
Dependent Claim
37 words
An assembly according to claim 1, in which the sleeve has a temperature indicating composition on an external surface which changes colour indicating recovery of the fabric or activation of an internal coating of a heat-activatable adhesive.
Claim 22
Dependent Claim
26 words
An assembly according to claim 1, in which the respective circumferences of liner and sleeve are such that after installation the fabric retains 20-50% unresolved recovery.
Claim 23
Dependent Claim
22 words
An assembly according to claim in 1, which recoverable fibres of the fabric have a recovery stress of 1.5 to 5 MPa.
Claim 24
Dependent Claim
14 words
A junction between elongate substrates when enclosed by an assembly according to claim 1.
Claim 25
Dependent Claim
13 words
A junction according to claim 23, in which the substrates are electrical cables.
Claim 26
Dependent Claim
13 words
A junction according to claim 23, in which the substrates are telecommunications cables.
Claim 27
Dependent Claim
13 words
A junction according to claim 25, in which the cables are pressurised cables.
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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) | 1989-12-01 | 1990-06-02 | 1990-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-01 | 1994-06-02 | 1994-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-01 | 1998-06-02 | 1998-12-02 | $7700.00 | Window Closed / Lapsed |