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:
Nov. 02, 1976
Filed:
Mar. 25, 1974
Applicant:
Inventor:
Wilhelm Blank, Speichersdorf, DT;
Assignee:
Klein, Schanzlin & Becker Aktiengesellschaft, Frankenthal, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310 / ; 310 63 ; 310 78 ;
Abstract
A pump for circulating cooling and lubricating liquid is driven by a motor which comprises a central rotor; a tubular housing coaxially surrounding the rotor and normally filled by the cooling and lubricating liquid; and a stator coaxially surrounding this tubular housing. Heating elements are provided between the coil ends of the stator and the tubular housing for heating the liquid in this housing, during or after a shutdown of the motor, when the liquid is likely to have congealed or at least to have become viscous.