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:
Mar. 02, 2004
Filed:
Apr. 24, 2002
Applicant:
Inventor:
Jay Thornhill, Milan, MI (US);
Assignee:
The Pullman Company, Milan, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F12F 9/00 ;
U.S. Cl.
CPC ...
F12F 9/00 ;
Abstract
A multiple chamber piston includes a first fluid chamber and a second fluid chamber attached by a first channel and a third fluid chamber connected to a fourth fluid chamber by a second channel. Air chambers are provided between the first fluid chamber and the third fluid chamber as well as the second fluid chamber and the fourth fluid chamber. As a result, when vibration is to be attenuated, walls of the air chambers are able to bend and deform to increase compliance of the overall multiple chamber piston.