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:
Jun. 20, 2000
Filed:
Dec. 04, 1998
Applicant:
Inventor:
Minoru Kawada, Nishi-kasugai-gun, JP;
Assignee:
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417 32 ; 417 63 ;
Abstract
A scroll-type compressor which prevents seizure or scuffing due to tight contact between spiral laps and end plates of fixed and revolving scrolls is provided. The compressor comprises two thermocouples, the contact point of one thermocouple being with a central portion of the end plate of the fixed scroll, while the contact point of the other thermocouple being with the housing. The operation of the scroll-type compressor is terminated when a difference between temperature values detected by the thermocouples reaches a predetermined value.