Cushion

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Description

FIG. 1 is a view from the front and one side;

FIG. 2 is a view from the other side;

FIG. 3 is a front view;

FIG. 4 is a plan view;

FIG. 5 is a rear view;

FIG. 6 is an underneath view; and,

FIG. 7 is a view from the front and the rear with a gel sac located in a recess in the cushion.

Referenced Cited

U.S. Patent Documents

D375863 November 26, 1996 Bigolin
3253861 May 1966 Howard
3393012 July 1968 Chancellor, Jr.
3463547 August 1969 Brennan et al.
3503649 March 1970 Johnson
3663973 May 1972 Spence
3689948 September 1972 Graves et al.
3689949 September 1972 Weinstein et al.
4312087 January 26, 1982 De Geus
4709431 December 1, 1987 Shaktman
4835801 June 6, 1989 Walpin et al.
5018790 May 28, 1991 Jay
5189747 March 2, 1993 Mundy et al.

Foreign Patent Documents

0 142 201 November 1984 EPX
0 258 952 September 1987 EPX
0 318 730 November 1988 EPX
0 318 731 November 1988 EPX
0 511 570A1 April 1989 EPX
WO 87/07126 May 1987 WOX
WO 89/05110 November 1988 WOX
WO 93/03195 March 1992 WOX
WO 95/07643 December 1993 WOX
WO 91/17684 December 1993 WOX
WO 95/05106 August 1994 WOX

Other references

  • Zero Gravity Medical; The Z-Flow Floam-Filled Cushion; Date Unknown; Product Flyer. Medical Products; Varilite Pro-Form Seating System; 1993; Product Flyer. Vision Wheelchair Seating Systems, Inc.; The Vip Cushion; date unknown; product flyer. Special Health Systems; The Ulti-Mate Pressure-Relief Cushion; date unknown; product flyer. Special Health Systems; Comfort Mate; date unknown; product flyer. Avanti Personal Seat III & IV; Date Unknown; Product Brochure. Avanti Essential, SDC & Contour Plus Cushions; Aug. 1995; product brochure. Zero Gravity; The Cloud Fluid-Filled Cushion Featuring Floam 1995; product brochure.

Patent History

Patent number: D399694
Type: Grant
Filed: Oct 2, 1996
Date of Patent: Oct 20, 1998
Assignee: Medical Support Systems Limited
Inventor: Colin A. Laidlaw (Carmarthen)
Primary Examiner: Janice E. Seeger
Law Firm: King and Schickli
Application Number: 0/60,627

Classifications

Current U.S. Class: D/6601; D6/596
International Classification: 0609;