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:
Jun. 19, 1990
Filed:
Jun. 20, 1989
Applicant:
Inventor:
Yasuo Watanabe, Komae, JP;
Assignee:
Kabushiki Kaisha Nihon M.D.M., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61G / ; A47C / ;
U.S. Cl.
CPC ...
5 61 ; 5425 ; 5453 ; 5457 ;
Abstract
A mat assembly is constructed so as to be tilted about a longitudinal axis by means of a pair of inflatable air bags. The mat assembly has an upper air cushion sheet mounted upon a frame, a lower air cushion sheet provided upon the underside of the frame, and a pair of air bags disposed upon the underside of the lower air cushion sheet at right and left thereof as viewed in the longitudinal direction. By supplying air to a bag upon one side and by discharging air from the bag upon the other side, the mat assembly is tilted.