EP0191609A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Cable sealing apparatus
Assignee: Raychem Corp
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Filing: 1986-02-06
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Granted: —
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Expires: 2006-02-06
Abstract
Abstract A cable end seal and a closure in which the cable end seal provides a barrier for a junction against water, the junction being in a cable. First and second end seals (12, 14) are disposed adjacent opposite sides of the junction (4) and placed in compression thereat, the end seals having an outer convoluted surface which mate with a variable length convoluted tubing (32) bridging member so as to form an environmental closure for the junction.
Inventors
- 👤 Gerald L. Shimirak
- 👤 Martha F. Story
- 👤 Thomas Hunter
- 👤 W.G. Halstead
- 👤 Paul S. Chan
- 👤 C. John Swinmurn
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 00:34
CPC Classifications
H; H02; H02G; H02G15/00; H02G15/013; H02G15/08; H02G15/10; H02G15/113
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
160 words
A cable sealing apparatus, comprising: a first end seal, the first end seal comprising: a layer of precured gel, the gel being cured prior to contacting a cable to be sealed, the gel being elastic, conformable, having a cone penetration between 80 and 350 (10-1mm), an ultimate elongation in excess of 50%, the gel preferably being disposed in a flexible matrix having an average volume of less than 0.01 inches3 with the gel preferably including a plurality of interconnected segments which lie within the interstices of the matrix, the gel further preferably being such that when the gel and the matrix are stretched, the matrix reaches its ultimate elongation before the gel reaches its ultimate elongation; the layer of gel including means formed therein for passage of a cable therethrough between inner and outer opposite faces of the gel; and means forming an outer circumferential convoluted surface of the first end seal, the convolutions extending circumferentially around the end seal.
Claim 2
Dependent Claim
160 words
A cable sealing apparatus, comprising: a first end seal, the first end seal comprising: a layer of precured gel, the gel being cured prior to contacting a cable to be sealed, the gel being elastic, conformable, having a cone penetration between 80 and 350 (10-1mm), an ultimate elongation in excess of 50%, the gel preferably being disposed in a flexible matrix having an average volume of less than 0.01 inches3 with the gel preferably including a plurality of interconnected segments which lie within the interstices of the matrix, the gel further preferably being such that when the gel and the matrix are stretched, the matrix reaches its ultimate elongation before the gel reaches its ultimate elongation; the layer of gel including means formed therein for passage of a cable therethrough between inner and outer opposite faces of the gel; and means forming an outer circumferential convoluted surface of the first end seal, the convolutions extending circumferentially around the end seal.
Claim 3
Dependent Claim
130 words
The apparatus of claim 1, further comprising a second end seal, the second end seal comprising: a second layer of precured gel, the second gel being cured prior to contacting the cable to be sealed, the second gel being elastic, conformable, having a cone penetration between 80 and 350 (10- 1 mm), and an ultimate elongation in excess of 50%, the second layer of gel including means formed therein for passage of the second cable therethrough between inner and outer opposite faces thereof; means forming an outer circumferential surface of the second end seal, the convolutions extending circumferentially around the end seal; a bridging member having a convoluted inner surface at opposite ends thereof engageable with the first and second convoluted members of the first and second end seals, respectively.
Claim 4
Dependent Claim
51 words
The apparatus of claim 2, the bridging member being slit longitudinally, the bridging member preferably having an entire outer and inner surface thereof convoluted and preferably having an inside diameter at the opposite ends thereof which is substantially equal to an outside diameter of the first and second end seals, respectively.
Claim 5
Dependent Claim
100 words
The apparatus of claim 2 or 3, the first and second end seals and the bridging member forming a closure for a junction in the cable, the first and second end seals being disposed around the cable adjacent opposite sides of the junction with the bridging member being disposed around the junction and around at least part of each of the first and second end seals, the cable and junction preferably being aerial or buried, the apparatus preferably further comprising a second bridging member disposed around the first bridging member, the second bridging member being convoluted at opposite ends thereof.
Claim 6
Independent Claim
91 words
The apparatus of any of the preceding claims, the first end seal further comprising a first member disposed adjacent to and in contact with the outer face of the gel and having means formed therein to facilitate passage of the cable therethrough, the first member preferably being a thin layer of plastic or a layer of foam, the first end seal preferably including a second member disposed adjacent to and in contact with the inner face of the gel and having means formed therein to facilitate passage of the cable therethrough.
Claim 7
Dependent Claim
78 words
The apparatus of claim 5, the gel passage formed means comprising a plurality of intersecting longitudinal slits extending through the gel, or a longitudinal bore extending between the inner and outer opposite faces of the gel, the member passage formed means comprising a plurality of concentrically disposed perforations in an area adjacent the gel passage formed means, the bore preferably having a plurality of internal ribs formed on an inner surface thereof for more securely gripping the cable.
Claim 8
Dependent Claim
21 words
The apparatus of claim 6, the bore extending all the way through the inner and outer opposite faces of the gel.
Claim 9
Dependent Claim
57 words
The apparatus of claim 6, the bore extending from a sealed portion of the outer face to a sealed portion of the inner face, the bore having a tapering conical portion therewithin, the conical portion being largest in diameter in a vicinity of a mid-point of the bore or in a vicinity of ends of the bore.
Claim 10
Independent Claim
26 words
The apparatus of any of the preceding claims, the first end seal further comprising means for securing the convoluted member and precured gel around the cable.
Claim 11
Independent Claim
23 words
The apparatus of any of the preceding claims, the first end seal comprising either a slit elongated disc or first and second half-cylinders.
Claim 12
Dependent Claim
36 words
The apparatus of claim 10, the first end seal including means for connecting portions of the disc in a hinge manner to allow opening and closing thereof, and further including means for closing the disc portions.
References Cited (Backward Citations)
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