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:
Aug. 30, 1988
Filed:
Feb. 19, 1987
Robert A Walker, Greer, SC (US);
Other;
Abstract
An air mattress has a filler check valve connected to an air blower to supply air to the mattress chamber. A holder secured to the air mattress locates the filler check valve in a recessed position relative to an outer wall of the mattress. The filler check valve has a sleeve mounted on the holder and a rod attached to a valve head carrying an annular sealing member. A spring biases the valve head to a closed position wherein annular sealing member engages a beveled face on the inner end of the sleeve. The outer end of the sleeve has a cylindrical collar with internal and external threads. The internal threads of the collar engage external threads of the holder to secure the sleeve on the holder. A cap has an annular flange with internal threads of the collar to close an air passage in the sleeve. Seals located between the collar and sleeve and between the cap and the sleeve inhibit leakage of air from the chamber of the air mattress.