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. 20, 1986
Filed:
Dec. 20, 1983
Applicant:
Inventor:
Takao Sakamoto, Akishima, JP;
Assignee:
Tachikawa Spring Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A47C / ;
U.S. Cl.
CPC ...
248550 ; 248588 ; 361176 ; 250561 ;
Abstract
An improved seat with an air suspension is disclosed in which detector means, a control circuit and electromagnetic valves are cooperatively used to operate the air suspension so as to automatically control the amount of air to be contained within the air suspension according to the weights of different occupants of the seat. Outputs from the detection means for detecting the vertical displacements of the seat are inputted to the control circuit and held therein for a predetermined period of time before the control circuit is operated to control the amount of air to be contained within the air suspension.