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:
May. 02, 1989
Filed:
Dec. 24, 1987
Applicant:
Inventors:
Rokusaburo Kimura, Kobe, JP;
Yoshie Watari, Osaka, JP;
Satoshi Nakayama, Nara, JP;
Haruhiko Naruse, Shijonawate, JP;
Assignee:
Matsushita Electric Works, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A47C / ;
U.S. Cl.
CPC ...
5453 ; 5455 ;
Abstract
A bedsore-preventing air mattress controller provided with an air pump for generating a magnetomotive force in a plurality of stages proportional to the feed air amount of the pump, and with an electric switch for changing over the magnetomotive force of the pump and integrally assembled with an air shut-off valve for discharging and halting air, whereby the controller arrangement is simplified to effectively reduce the required number of parts for lowering manufacturing costs.