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:
Nov. 04, 1997
Filed:
Sep. 30, 1996
C Nicholas Goloff, Secor, IL (US);
Larry K Rhodes, Pekin, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
Accumulators normally have a first chamber filled with a pressurized gas, a second chamber in communication with the pressurized fluid of a hydraulic system and an elastomeric member separating the chambers. In the subject invention, an accumulator is provided which has an elastomeric member disposed in a closed chamber of a housing. The elastomeric member has an outer surface with a non-uniform linear surface and a cavity extending inward from one end thereof and in communication with an inlet conduit. As the pressure is introduced into the cavity of the elastomeric member, the non-uniform linear outer surface is progressively forced against an interior surface of the closed chamber. The progressive compression of the elastomeric member acts to increase the volume of the cavity as the pressure of the fluid in the cavity progressively increases.