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:
Aug. 11, 1987
Filed:
Aug. 14, 1986
Keith H Fulmer, Mishawaka, IN (US);
Donald J Baker, South Bend, IN (US);
Allied Corporation, Morristown, NJ (US);
Abstract
The accumulator comprises a housing (12, 212) having a bore (16, 216) extending longitudinally within the housing (12, 212), a piston (26, 226) disposed slidably within the bore (16, 216) and dividing the bore (16, 216) into first (18, 218) and second (20, 220) chambers. The piston (26, 226) has a bore (30, 230) with a bore opening (36, 236) at the first piston end (27, 227), the bore opening (36, 236) being enclosed by a sleeve member (70, 271). The sleeve member (70, 271) extends longitudinally away from the piston bore (30, 230) and into the first chamber (18, 218), the sleeve member (70, 271) having a sleeve opening (78, 273) permitting high pressure fluid contained within the first chamber (18, 218) to communicate freely with the piston bore (30, 230). A lubricating fluid (60, 260) is disposed about the first piston end (27, 227) and is prevented from entering into the piston bore (30, 230) by means of the sleeve member (70, 271). The sleeve member (271) may be biased away from the piston (226) by means of a spring (288) disposed within the piston bore (230).