Segmented inflatable mattress unit for use as a body support

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Description

FIG. 1 is a top and right side perspective view of a segmented inflatable mattress unit for use as a body support, showing my new design;

FIG. 2 is a right side elevational view thereof on a reduced scale, the left side being a mirror image of that shown;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a bottom plan view thereof.

A characteristic feature of the design resides in the three flexion hinges connecting the four inflatable segments, which are of substantially same lengths, Also, a first, or head, segment has a lengthwise extending hole therethrough.

Referenced Cited
U.S. Patent Documents
717703 January 1903 McCarty
1548728 August 1925 Milam
2623574 December 1952 Damsch
2807033 September 1959 McClanahan
2843181 July 1958 Paschen
3747916 July 1973 Benson
3902759 September 1975 Monteforte et al.
4054960 October 25, 1977 Pettit et al.
4473913 October 2, 1984 Ylvisaker
4484781 November 27, 1984 Phelps
4518203 May 21, 1985 White
4603444 August 5, 1986 Suits
4635306 January 13, 1987 Willey
4662851 May 5, 1987 Foster
4723329 February 9, 1988 Vaccaro
4777678 October 18, 1988 Moore
4824411 April 25, 1989 McClanahan
Other references
  • "Standard Trade Index of Japan 1988-1989, 32nd Ed.", The Japan Chamber of commerce and Industry, Tokyo, Japan, page advertising the BRESCO .COPYRGT. Sanken-Mat .COPYRGT. Air-ventilation type bedsore remedy and prevention apparatus (Brethren Corporation) and the Bio-up ultra-long wave magnetic therapeutic apparatus (Kawasaki Electric Industry Co., Ltd.).
Patent History
Patent number: D348792
Type: Grant
Filed: Jul 27, 1990
Date of Patent: Jul 19, 1994
Inventor: Linda J. DeGroot (Renton, WA)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Lisa Lichtenstein
Attorney: Christopher John Rudy
Application Number: 7/558,879
Classifications
Current U.S. Class: D/6604