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:
Jan. 13, 1998
Filed:
May. 28, 1996
Dieter Otto, Ennepetal, DE;
Abstract
A vacuum pump, particularly adapted for use with a power assisted brake system of a motor vehicle, includes a pump housing with a small diameter section and a larger section. A rotor in the housing with a smaller diameter coupling section and with a larger diameter pump section in the larger section of the housing. A rotor wing in the larger section of the housing is received in a slot in the rotor for being rotated by the rotor. A drive element passing along the axis of the rotor is connectable with a coupling to drive the drive element and is positioned between the two half bodies of the rotor for rotating the rotor and the wing of the rotor. The drive element has a coupling section of elastic resilient material which is received in a slot in the rotor and has wing sections above and below the plane of the coupling section which define a slot in the rotor in which the rotor wing is received, such that the drive element can absorb torque and oscillations.