Headset/amplifier interface adaptor

- Unex Corporation
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Description

FIG. 1 is a plan view of a headset/amplifier interface adaptor showing our new design;

FIG. 2 is a side elevational view thereof, the opposite side being a mirror image;

FIG. 3 is a bottom view thereof;

FIG. 4 is a front view thereof; and,

FIG. 5 is a back view thereof.

Referenced Cited
U.S. Patent Documents
D254847 April 29, 1980 Healey
D328283 July 28, 1992 Strand
D332600 January 19, 1993 Lucey et al.
D332601 January 19, 1993 Lucey et al.
3610841 October 1971 Hutchings
4008940 February 22, 1977 Foley
4146291 March 27, 1979 Goff et al.
4536888 August 1985 Wilson
4617431 October 14, 1986 Scott et al.
4702538 October 27, 1987 Hutter et al.
4787860 November 29, 1988 Bender
4876712 October 24, 1989 Brint et al.
4879746 November 7, 1989 Young et al.
4917504 April 17, 1990 Scott et al.
4934959 June 19, 1990 Zielinski et al.
4951002 August 21, 1990 Hanon
4975949 December 4, 1990 Wimsart et al.
5036536 July 30, 1991 Hanon et al.
5112143 May 12, 1992 Chow et al.
5185789 February 9, 1993 Hanon et al.
5259780 November 9, 1993 Morrissey, III et al.
Foreign Patent Documents
1026391 March 1958 DEX
Other references
  • Headset accessories on p. 128 of Allied Electronics, .COPYRGT.1990. Connectors 206 and 207 in Anderson Power Products brochure, 1969.
Patent History
Patent number: D357667
Type: Grant
Filed: Nov 1, 1993
Date of Patent: Apr 25, 1995
Assignee: Unex Corporation (Chelmsford, MA)
Inventors: Robert E. Lucey (Sudbury, MA), James T. MacDonald, Jr. (Pepperell, MA)
Primary Examiner: Joel Sincavage
Law Firm: Weingarten, Schurgin, Gagnebin & Hayes
Application Number: 0/14,868