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. 10, 2021
Filed:
Nov. 09, 2018
Skf Lubrication Systems Germany Gmbh, Walldorf, DE;
Dieter Hess, Ludwigshafen, DE;
Juergen Kreutzkaemper, Waibstadt-Daisbach, DE;
Andreas Schoenfeld, Sankt Leon-Rot, DE;
Stefan Schuermann, Walldorf, DE;
AKTIEBOLAGET SKF, Gothenburg, SE;
Abstract
A lubricating-grease pump includes a pumping chamber, a leakage accumulation chamber, a seal configured to substantially seal the pumping chamber from the leakage accumulation chamber, at least one outlet from the pumping chamber, and at least one leakage-recovery arrangement configured to guide a quantity of grease that has leaked from the pumping chamber into the leakage accumulation chamber back into the pumping chamber. The leakage-recovery arrangement may include a first passageway connecting the leakage accumulation chamber to a storage region, a second passageway connecting the first passageway to the pumping chamber and a spring-biased piston in the storage region.