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:
Sep. 19, 2023
Filed:
Jul. 14, 2021
Applicant:
Chart Inc., Ball Ground, GA (US);
Inventor:
Eric Thor, Arden Hills, MN (US);
Assignee:
Chart Inc., Ball Ground, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J 9/06 (2006.01); F16J 7/00 (2006.01); F16J 15/3268 (2016.01);
U.S. Cl.
CPC ...
F16J 9/06 (2013.01); F16J 7/00 (2013.01); F16J 15/3268 (2013.01);
Abstract
An annular seal for sealing an opening in a pump housing surrounding a piston rod includes a primary sealing portion with an inner surface adjacent to the piston rod and an outer surface adjacent to the pump housing. An initial sealing portion features an inner wall and an outer wall so that an annular space is defined therebetween. A top wall extends between the inner and outer walls. A coil spring is positioned within the annular space of the initial sealing portion and urges the inner wall into engagement with the piston rod and the outer wall into engagement with the pump housing.