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. 05, 2017
Filed:
Aug. 05, 2015
Applicant:
Laitram, L.l.c., Harahan, LA (US);
Inventor:
Christopher G. Greve, Covington, LA (US);
Assignee:
Laitram, L.L.C., Harahan, LA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 5/12 (2006.01); H02K 5/10 (2006.01); H02K 5/16 (2006.01);
U.S. Cl.
CPC ...
H02K 5/10 (2013.01); H02K 5/16 (2013.01); H02K 2205/09 (2013.01);
Abstract
A water-resistant electric motor having an end bell with a passage that prevents the formation of a vacuum between the shaft seal and the shaft bearing. The passage extends from the interior region of the motor through the end bell bypassing the bearing to communicate with a gap between the seal and the bearing. The motor housing includes a vent to expose the motor's interior region and the gap to atmospheric pressure or to a source of higher-pressure air or gas to prevent water from being sucked into the motor's interior.