Tri-zone mattress overlay

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Description

FIG. 1 is a front elevational view of a tri-zone mattress overlay or the like embodying the design of the present invention;

FIG. 2 is a right end elevational view thereof, which is identical in appearance to the reverse of the left end elevational view thereof;

FIG. 3 is a top plan view thereof, with the front elevation of the embodiment turned upwardly;

FIG. 4 is a bottom plan view thereof, with the front elevation of the embodiment turned upwardly; and,

FIG. 5 is a back elevational view thereof, with the stippling intended to indicate a uniform, relatively flat surface.

Referenced Cited
U.S. Patent Documents
D307687 May 8, 1990 Raburn
D307688 May 8, 1990 Schaefer
D307689 May 8, 1990 Schaefer
D307690 May 8, 1990 Raburn
D322907 January 7, 1992 Raburn
D326204 May 19, 1992 Main
D336400 June 15, 1993 Mitchell
3512190 May 1970 Buff
4603445 August 5, 1986 Spann
4686724 August 18, 1987 Bedford
4741058 May 3, 1988 Williams et al.
4768251 September 6, 1988 Baskent
4826538 May 2, 1989 Spann et al.
4955096 September 11, 1990 Gilroy et al.
5007124 April 16, 1991 Raburn et al.
5111542 May 12, 1992 Farley
5134735 August 4, 1992 Rose
Foreign Patent Documents
1559851 January 1980 GBX
Other references
  • Health & Medical Techniques/Aquatherm, a Division of Horizon International Healthcare, Inc. Adv. Brochure, .COPYRGT.1991, p. 1, Gravity 1 Flotation Mattress, top right side of page.
Patent History
Patent number: D355322
Type: Grant
Filed: Dec 3, 1993
Date of Patent: Feb 14, 1995
Assignee: Span-America Medical Systems, Inc. (Greenville, SC)
Inventors: Robert E. Ackley (Greenville, SC), Richard W. Raburn (Simpsonville, SC)
Primary Examiner: Lisa P. Lichtenstein
Application Number: 0/16,008
Classifications
Current U.S. Class: D/6596; D/6606