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:
Dec. 03, 2019
Filed:
May. 31, 2017
Caterpillar Inc., Peoria, IL (US);
Alan Stockner, Metamora, IL (US);
Aaron M. Brown, Peoria, IL (US);
Sridhar Thangaswamy, Dunlap, IL (US);
Dana R. Coldren, Secor, IL (US);
Dennis Gibson, Chillicothe, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A pushrod assemblymay include a seal carrierfor a spaced seal assemblyand/or a seal carrierfor a stacked seal assembly, the spaced seal assembly including first and second annular sealsseparated by a spacerto isolate between the seals a vented regionof the pushrod housing, the stacked seal assembly including at least two annular sealsstacked on the seal carrier. Each seal assembly can be removed and replaced via an access endof the seal carrier after detaching the access end from an adjacent component of the assembly. The seal carriers may be incorporated into a cryogenic pumpwherein at least one annular seal is arranged on each seal carrier to seal the pushrod assemblywithin its housing