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:
Jun. 22, 1993
Filed:
Sep. 16, 1991
Applicant:
Inventors:
Bernhard Gesenhues, Birkenau, DE;
Detlef Cordts, Ober-Mumbach, DE;
Assignee:
Firma Carl Freudenberg, Weinheim/Bergstr., DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D / ;
U.S. Cl.
CPC ...
4152161 ; 415200 ;
Abstract
The plastic impeller of a coolant pump is attached to the bearing shaft with a bearing journal, so that the journal engages to be seated firmly in an axial bore of the shaft. Here, the bearing journal and the impeller are formed in one piece of the same material. The bearing journal is pressed or glued into the bore of the bearing shaft, and the impeller as well as the bearing journal are formed of a phenolic resin which is resistant to the coolant.