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:
Apr. 26, 2022
Filed:
Jan. 02, 2020
Applicant:
Caterpillar Inc., Peoria, IL (US);
Inventor:
John M. Mashak, Peoria, IL (US);
Assignee:
Caterpillar Inc., Peoria, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
F16J 15/3248 (2016.01); F16J 15/16 (2006.01); F16J 15/3244 (2016.01); F16J 15/3264 (2016.01);
U.S. Cl.
CPC ...
F16J 15/3248 (2013.01); F16J 15/164 (2013.01); F16J 15/3244 (2013.01); F16J 15/3264 (2013.01);
Abstract
A contamination guard for a machine is disclosed herein. The contamination guard includes an inner ring, a first annulus, a second annulus, and an impeller. The impeller is configured to promote intake of nearby air with contamination. The first annulus and second annulus form a passage that is configured to sling away air with contamination during operation of the machine.