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. 12, 1998
Filed:
May. 07, 1996
Ralph Vitale, New Haven, CT (US);
Frank Vitale, New Haven, CT (US);
Other;
Abstract
This disclosure is directed to a fluid actuated spring assembly for supporting a vehicle load which includes an expandable bellows or chamber having a limiting device disposed internally of the expansion chamber to prohibit or limit the overall height to which the expandable chamber may extend. A control valve is operatively connected to the expandable chamber to control the flow of fluid pressure to and from the expandable chamber, and a valve actuator that is responsive to varying load and/or road conditions is provided to automatically operate the valve to control the flow of fluid pressure to and from the expansion chamber so as to maintain the overall height of the expandable chamber substantially constant, irrespective of varying load and/or road conditions.