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:
Nov. 01, 1988
Filed:
Jun. 10, 1987
Applicant:
Inventors:
Wolfgang Sohler, Wangen, DE;
Werner Schubert, Lindau, DE;
Assignee:
Wankel GmbH, Berlin, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B / ; F04C / ; F04C / ;
U.S. Cl.
CPC ...
417312 ; 418180 ; 418181 ; 418206 ;
Abstract
An external axial rotary piston blower for quarter-roller type of construction with transfer ports leading to the outlet in the casing runway surfacing or inner peripheral surface of the housing with length differing relative to each other and increasing cross section differing toward the outlet, the greatest length of which can be permitted to be dimensioned or measured only such that the transfer ports are first opened when the inlet is closed-off by the piston traversing the same.