The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 24, 1987
Filed:
Apr. 24, 1985
Applicant:
Inventor:
Robert A Walker, Minneapolis, MN (US);
Assignee:
Dynatech, Inc., Greenville, SC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A47C / ;
U.S. Cl.
CPC ...
5449 ; 5453 ; 5455 ; 5468 ;
Abstract
An air mattress is equipped with a one-way air pressure relief valve operable to limit the air pressure in the air mattress to about 1 psi to prevent seam separation and blowout. The mattress has top and bottom walls joined to side and end walls with edge seams. The air pressure relief valve is located within the chamber of the air mattress so that external structures do not interfere with the functioning of the valve. In one arrangement, a boot secures the air pressure relief valve to the inside of an end wall. In a second arrangement, the air pressure relief valve is located within the seam.