Title:
Air mattress
United States Patent D300194
US Patent References:
/0585834.html
Ruth - July, 1897 - 0585834

/1282980.html
Takach - October, 1918 - 1282980

Composite mattress
Withers - October, 1929 - 1730752

Pneumatic mattress and the like
Sampson - April, 1941 - 2237012

Inflatable mattress for cribs and the like
Harris et al. - April, 1951 - 2549597


Inventors:
Walker, Robert A. (519 Fifth St., Elk River, MN, 55330)
Application Number:
D/660537
Publication Date:
03/14/1989
Filing Date:
10/12/1984
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Primary Class:
D06/604
Other Classes:
D06/605
Field of Search:
D6/595, D6/596, D6/601, D6/605, D6/604, 5/441, 5/448, 5/449
US Patent References:
2741780Inflatable mattress coreApril, 1956Kimbrig5/348
2842783Air mattressJuly, 1958Druck5/348
2998817Inflatable massaging and cooling mattressSeptember, 1961Armstrong128/33
3128480Inflatable mattress or the likeApril, 1964Lineback5/348
3148391Support deviceSeptember, 1964Whitney5/348
3170172Sun-bathing deviceFebruary, 1965Kessman5/449
3303518Inflatable mattresses, pillows and cushionsFebruary, 1967Ingram5/349
3477071DEVICE FOR AUTOMATICALLY SHIFTING THE BODY OF A PATIENTNovember, 1969Emerson5/61
3505695STRAIN SEPARABLE INFLATION GAUGE FOR INFLATABLE ARTICLESApril, 1970Bishaf et al.5/348
3605138September, 1971Tucker5/90
3775781PATIENT TURNING APPARATUSDecember, 1973Bruno et al.5/61
3790975AIR MATTRESSFebruary, 1974Philipp et al.5/349
4175297Inflatable pillow supportNovember, 1979Robbins et al.5/284
4224706Pneumatic bedSeptember, 1980Young et al.5/449
4225989Inflatable supportsOctober, 1980Corbett et al.5/453
4371999Air mattressesFebruary, 1983Reid5/457
4394784Air bed with firmness controlJuly, 1983Swenson et al.5/453
Primary Examiner:
Herrmann, Winifred E.
Attorney, Agent or Firm:
Burd, Bartz & Gutenkauf
Claims:
1. The ornamental design for an air mattress, as shown and described.

Description:

FIG. 1 is a top, left and side perspective view of an air mattress showing my new design;

FIG. 2 is a top view thereof, the bottom view being a mirror image thereof;

FIG. 3 is a left end elevational view thereof on an enlarged scale;

FIG. 4 is an enlarged side view thereof, the opposite side being a mirror image thereof;

FIG. 5 is an enlarged sectional view taken along line 5--5 of FIG. 2;

FIG. 6 is an enlarged foreshortened sectional view taken along line 6--6 of FIG. 2; and

FIG. 7 is a right end elevational view thereof on an enlarged scale.