Cushion to be placed on a ramp to slow down a wheel chair

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Description

FIG. 1 is a top and end perspective view of a cushion to be placed on a ramp to slow down a wheel chair showing my new design;

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

FIG. 3 is an enlarged end elevational view thereof, the opposite end being a mirror image of that shown;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a reduced bottom and end perspective view thereof.

Referenced Cited
U.S. Patent Documents
D314879 February 26, 1991 Painter
1668489 May 1928 Brand
3900910 August 1975 Nakata
4073021 February 14, 1978 Carlisle
4234982 November 25, 1980 Bez et al.
4370769 February 1, 1983 Herzig
4484781 November 27, 1984 Phelps
Foreign Patent Documents
1068420 December 1979 CAX
Other references
  • Symbol Sourcebook, .COPYRGT.1972, p. 117, wheelchair symbol A, upper left side of page. Hecht's Cat, Dec. 1981, p. 35, cushion A, top right side of page.
Patent History
Patent number: D337685
Type: Grant
Filed: Feb 2, 1990
Date of Patent: Jul 27, 1993
Inventor: Roger D. Bennett (Bellingham, WA)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Lisa Lichtenstein
Application Number: 7/473,719
Classifications
Current U.S. Class: D/6601