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. 29, 2013
Filed:
May. 10, 2007
Applicant:
Felix Arnold, Neckarsteinach, DE;
Inventor:
Felix Arnold, Neckarsteinach, DE;
Assignees:
Cor Pumps + Compressors AG, Stuttgart, DE;
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B 17/03 (2006.01); F01C 1/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electrically driven rotary piston machine which operates as a rotary piston pump or rotary piston compressor wherein the rotary piston machine has a basic housing, which holds an electrical coil and pump head, wherein the pump working space is preferably bounded by a trochoid toothing of the rotors. The pump head which can usually be manufactured relatively economically is embodied as a disposable part and therefore has a quick-action connection with the more complex basic housing.