Radio receiver of headphone type

- Sony Corporation
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Description

FIG. 1 is a top, front and right-side perspective view of a radio receiver of headphone type, showing our new design;

FIG. 2 is a top, rear and left-side perspective view thereof, shown with head band in the expanded position and head belt in the opened position;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left-side elevational view thereof;

FIG. 6 is a right-side elevational view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D237307 October 1975 Miyamoto et al.
D316861 May 14, 1991 Yoda et al.
D321879 November 26, 1991 Emmerling
Other references
  • Radio Shack 1990 Cat. No. 446; .COPYRGT.1989; p. 95; headset radio No. 1. Hong Kong Enterprise; Jul. 1988; p. 78; headset radio 121. Popular Science; Aug. 1988; p. 87; headphone radio. Home Furnishings Daily; Sep. 19, 1987; p. 111; headset radio (upper left).
Patent History
Patent number: D340033
Type: Grant
Filed: Feb 25, 1991
Date of Patent: Oct 5, 1993
Assignee: Sony Corporation (Tokyo)
Inventors: Kazumasa Okumura (Tokyo), Akiyoshi Okada (Tokyo)
Primary Examiner: B. J. Bullock
Attorneys: Lewis H. Eslinger, Jay H. Maioli
Application Number: 7/659,047