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. 24, 2001
Filed:
May. 07, 1996
Applicant:
Inventors:
Norman G. Beck, Sidney, OH (US);
Gary J. Anderson, Sidney, OH (US);
Richard S. Tucker, Quincy, OH (US);
Assignee:
Copeland Corporation, Sidney, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01C 1/02 ;
U.S. Cl.
CPC ...
F01C 1/02 ;
Abstract
A scroll machine has a fluid path which is defined by two components of the scroll machine. The fluid path extends between a discharge pressure zone and a suction pressure zone of the scroll machine. The scroll machine further includes a biasing member which biases one of the two components away from the other of the two components to open the fluid path when the scroll machine is not operating. The effect of the biasing member is overcome by several revolutions of the scroll machine by centrifugal force in one embodiment and fluid pressure in another embodiment.