Telephone-signal-actuated disconnect switch

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Description

FIG. 1 is a front elevational view of the telephone-signal-actuated disconnect switch showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D180712 July 1957 Hake
D219657 January 1971 Kahn
D263465 March 23, 1982 Fathi
D292512 October 27, 1987 Hames
D317311 June 4, 1991 Anderson et al.
2988617 June 1961 Graziosi
3452252 June 1969 Mapham
4085996 April 25, 1978 Koslo
4500160 February 19, 1985 Bertsch
4743999 May 10, 1988 Hames
4861286 August 29, 1989 Fosnaugh
Other references
  • Automatic burn-out protector on p. 72 of Product Engineering, May 1978. Receptacles on p. 424 of Hong Kong Enterprise, vol. 12, 1980 Receptacles on p.C.-5 of Bryant catalog BDB 1504, Jun. 1987. 068TEC telephone light alert on p. 374 of B. A. Pargh catalog.
Patent History
Patent number: D338873
Type: Grant
Filed: Jun 27, 1990
Date of Patent: Aug 31, 1993
Inventor: Tak Y. Sue (Richmond, CA)
Primary Examiner: Wallace R. Burke
Assistant Examiner: J. Sincavage
Attorney: Leon Gilden
Application Number: 7/544,474
Classifications
Current U.S. Class: Switch Or Casing Therefor (18) (D13/158); D13/137; D13/142