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:
Mar. 07, 1995
Filed:
Apr. 29, 1994
Applicant:
Inventors:
Assignee:
Mitsubishi Jukogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01C / ;
U.S. Cl.
CPC ...
418-2 ; 418 553 ; 464102 ; 73253 ;
Abstract
A speed detector of a scroll-type fluid machine in which a fixed scroll and an orbiting scroll, each of which includes a spiral wrap disposed on the inner surface of an end plate thereof, are engaged with each other and housed in a closed housing, and the orbiting scroll revolves while its rotation is checked by means of an Oldham's ring having the orbiting scroll disposed on the outer surface thereof, wherein the Oldham's ring is formed of a magnetic material, and an electromagnetic induction type revolution signal detecting means is installed in an opposed relationship to the Oldham's ring.