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. 16, 2001
Filed:
May. 29, 1998
Applicant:
Inventor:
Hajime Nakamura, Takasago, JP;
Assignee:
Kabushiki Kaisha Kobe Seiko Sho, Kobe, JP;
Primary Examiner:
Int. Cl.
CPC ...
F04B 4/900 ;
U.S. Cl.
CPC ...
F04B 4/900 ;
Abstract
A compressor adapted to be put into a load operating state when there exists the relation P,≦PSL between the discharge pressure P,and a set lower limit of pressure PSL and adapted to be put into an unload operating state when there exists the relation P,≧PSH between the discharge pressure P,and a set upper limit of pressure PSH, or when there exists the relation PSL<P,<PSH among the discharge pressure P,, the set upper limit of pressure PSH, and the set lower limit of pressure PSL and, in addition, there exists the relation T,≧T,between the count time T,indicated by a timer to be started when a preceding unload operation is started and a set time T,.