H - Electricity – 01 – R
Patent
H - Electricity
01
R
H01R 43/00 (2006.01) G02B 6/50 (2006.01) H01R 13/00 (2006.01) H01R 13/523 (2006.01)
Patent
CA 2174270
It is an object of the invention to provide substantial protection and insulation to the submarine cable joints. It is a further object of the invention to provide such protection and insulation in an efficient manner without utilizing costly molding and x- ray equipment. These and other objects are satisfied, in accordance with the invention, by a novel article of manufacture having at least two hollow elements that are formed from a heat shrinkable material. The heat shrinkable material has an expanded state and an unexpanded state. Upon the application of heat, the heat shrinkable material in the expanded state shrinks such that it substantially returns to the unexpanded state. At least one of the elements forming the article is in the unexpanded state while other elements are in the expanded state. The hollow elements are coupled to constitute an integrally-formed single unit having a continuous passageway therethrough. Theunexpanded element is intended to be positioned against a locating portion of a device to be insulated and protected, as with a jointbox and cable segments, so as to locate portions of the device within the passageway in a predetermined position such that said unexpanded first element and the locating portion undergo insubstantial relativemovement as the article is subsequently heated. Advantageously, such an articledescribed above facilitates its installation as a protective covering, for example, to cable joints, because the insubstantial relative movement between the unexpandedelement and the locating portion allows proper alignment of the article and device to be maintained even as the expanded elements of the covering shrink and move relative to device during the heating step. In an illustrative example of the invention, the article is formed by from heat shrinkable polyolefin tubes which are arranged as an expanded first substantially cylindrical portion, an expanded second substantially cylindrical portion having a relatively smaller diameter than the first portion, and an unexpanded conical transition portion which couples the first and second portions. The unexpanded conical transition portion functions to precisely locate the article against a similarly shaped termination socket portion of the jointbox. An adhesive is applied to portions of the inside surfaces of the article.
At&t Ipm Corp.
Kirby Eades Gale Baker
LandOfFree
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