Robert P Guenther

US Patent:

41588258, Jun 19, 1979

Filed:

Dec 29, 1977

Appl. No.:

5/865509

Inventors:

Robert P. Guenther - Middletown NJ
Melvin S. Zucker - late of Long Island City NY

Assignee:

Bell Telephone Laboratories, Incorporated - Murray Hill NJ

International Classification:

H01P 106
H01P 502
H01P 313

US Classification:

333257

Abstract:

An expansion joint for connecting sections of waveguide includes a plurality of spacer discs mounted on a plurality of guide rods. The guide rods are rigidly affixed to a termination member. Washer type springs are employed between the individual spacer discs on the guide rods for controlling increases and decreases in the space between the discs and, hence, compensating for contraction and expansion, respectively, of the waveguide sections while maintaining a uniform electrical path through the joint. Additional spacer discs having various thicknesses are also employed to allow for a predetermined maximum initial length adjustment within a prescribed tolerance.

US Patent:

51827441, Jan 26, 1993

Filed:

Jan 3, 1991

Appl. No.:

7/637244

Inventors:

James D. Askew - Ellenwood GA
Chin-Wang Chao - Lincroft NJ
David R. Cochran - Easton PA
Peter M. Dollard - Highlands NJ
Hossein Eslambolchi - Freehold NJ
William E. Goodson - Freehold NJ
Robert P. Guenther - Red Bank NJ
Omar M. Mansour - West Long Branch NJ
Liem T. Nguyen - Colts Neck NJ
Sarma S. Tanuku - Howell NJ

Assignee:

AT&T Bell Laboratories - Murray Hill NJ

International Classification:

H04J 116

US Classification:

370 16

Abstract:

A restoration system is provided for enhancing the reliability of a telecommunications network such that particular traffic which is disrupted by, for example, a faulty link, may be quickly rerouted via an alternate route established "on the fly". In particular, each node and link forming the network is monitored, and in the event that such monitoring detects a faulty link or node then a central controller is notified. The controller is arranged to locate spare capacity and establish an alternate route, in which the continuity of the alternate route is confirmed before the disrupted traffic is transferred thereto.