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. 14, 1995
Filed:
Jan. 24, 1994
Applicant:
Inventor:
Douglas P Miller, New Berlin, WI (US);
Assignee:
Applied Power Inc., Butler, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
60478 ;
Abstract
A hydraulic fluid reservoir contains an extensible bladder which has its exterior exposed to the fluid and its interior vented to the exterior of the reservoir. The interior of the bladder is sealed from the hydraulic fluid in the reservoir. Depletion of the fluid from the reservoir results in distension of the bladder and replenishing the fluid to the reservoir collapses the bladder. The bladder is pleated and a tie-rod which holds the reservoir together extends through the bladder.