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. 02, 1983
Filed:
Oct. 31, 1980
David R Thompson, Kenmore, NY (US);
Boris Pevzner, Williamsville, NY (US);
Union Carbide Corporation, Danbury, CT (US);
Abstract
The cryogenic reciprocating pump includes a pump body having a cylindrical pumping chamber extending from the forward end of the pump body to the pump body rearward end. A piston is reciprocated in the pumping chamber under the control of a piston rod extending from the pumping chamber. A packing assembly surrounds the piston rod and is coupled through an intermediate section to the rearward end of the pump body. The intermediate section comprises a tubular shell of low thermal conductivity material and a corrugated metal expansion member. The packing assembly is affixed to a support member connected to the pump body at the forward end thereof.