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:
Jul. 23, 1991
Filed:
Nov. 13, 1989
Applicant:
Inventor:
Roland Kolb, Dielsdorf, CH;
Assignee:
Asea Brown Boveri Ltd., Baden, CH;
Primary Examiner:
Int. Cl.
CPC ...
F04C / ; F16B / ; F16D / ;
U.S. Cl.
CPC ...
418 551 ; 418 553 ; 418151 ; 74570 ; 74589 ; 74603 ; 403383 ;
Abstract
On an eccentric shaft having at least one counterweight (20) which is mounted to the shaft as separate part, the seat of the counterweight on the shaft exhibits a cross-section bounded by two circular arcs. One circular arc (43) which is diametrically opposite to the eccentric (23) has its center on the eccentric axis (41) and the other circular arc (44) has its center on the axis of rotation (42) of the shaft (24). Use of the drive shaft in a displacement machine of the spiral type of construction, in which a displacement body is held on a disk-shaped rotor which can be eccentrically driven with respect to a housing.