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. 10, 2002
Filed:
Sep. 20, 2000
Applicant:
Inventor:
Klemens Krahn, Norderstedt, DE;
Assignee:
Dolmar GmbH, Hamburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B27B 1/712 ;
U.S. Cl.
CPC ...
B27B 1/712 ;
Abstract
A chain medium pump ( ) for a motor chain saw ( ) is made disconnectable in a simple manner, the chain medium pump ( ) sucking the chain medium over a suction pipe ( ) from a tank ( ) and delivering it over a pressure pipe ( ) to a sawing device ( ) of the motor chain saw ( ), by the fact that, for disconnecting the supply of the sawing device ( ) with the chain medium, there exist controllable means ( ) with which the pressure pipe ( ) is interrupted, the chain medium pump ( ) being running, and simultaneously the chain medium delivered by the chain medium pump ( ) can be returned into the suction pipe ( ).