Cable seal

Details Cable seal Cable seal

1990-10-30

1992-04-28

Sikes, William L.

Optical waveguides

Optical transmission cable

Tightly confined

G02B 644

Patent

active

051094584

ABSTRACT:
A device for sealing passage of cable through an opening in a wall comprises (a) an elastomeric grommet having therein an axial bore and a radial slit extending to such bore from the grommet's outer surface, and (b) a clamp comprising a belt of which a segment forms a loop around the grommet, and a take-up adapted by adjustment to contract or expand such loop. In use, a portion of a cable is inserted through the slit into the bore, the grommet is positioned within the wall opening and the take-up is operated to contract the loop to pressurize the grommet material to thereby seal (c) the cable portion in the bore, (d) the slit and (e) the interface of the grommet and wall. Prior to such use, the bore contains a removable plug joined to the grommet by a ring of tearable material. The grommet has thereon first and second flanges adapted to, respectively, provide strain relief for the cable and aid in retaining the grommet in the wall opening. In a variant, the device has three axial bores and three corresponding radial slits permitting passage of three cables through such opening.

REFERENCES:
patent: 4767176 (1988-08-01), Pohl
patent: 4787702 (1988-11-01), Khalil
International Wire & Cable Symposium Proceedings 1989, "Fiber-To-The-Home Update: Drop Installation Flexiblity," by G. S. Cobb, W. H. Bensel, and J. B. Haber and M. M. Dixit, pp. 149-154, Nov. 14, 1989.

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