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:
Mar. 13, 2001
Filed:
Dec. 17, 1999
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 1/700 ; F04B 3/504 ;
U.S. Cl.
CPC ...
F04B 1/700 ; F04B 3/504 ;
Abstract
The present invention discloses an electric-motor-and-pump assembly including an electric motor, and the pump-sided end of the motor shaft (,) extends through a housing lid (,), is supported with at least one roller bearing (,) on a pump housing (,), and its purpose is to drive pump pistons (,). The housing lid (,) includes a bore in the area of a shaft passage (,) which leaves open a gap (,) to the motor shaft (,). The gap (,) connects a pump-sided crank chamber (,) to an inside space (,) of the motor. The assembly includes a sealing element (,) which shuts off the gap (,).