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. 27, 2001
Filed:
Feb. 05, 1999
Jiro Iizuka, Takasaki, JP;
Sanden Corporation, Gunma, JP;
Abstract
A movable race,fixed to a movable scroll,which revolves with respect to a fixed scroll and a fixed race,opposing the movable race are respectively provided with pluralities of annular ball rolling grooves,and,extending along the revolutionary locus of the movable scroll and a plurality of balls,are held sandwiched between the plurality of ball rolling grooves,of the movable race and the plurality of ball rolling grooves,of the fixed race. Further, the radius of revolution S,to be obtained by the movable race, the plurality of balls, and the fixed race is made smaller than the radius of revolution S,to be determined by the scroll wall of the movable race and that of the fixed race. A relationship between a diameter Sa of a ball orbit of the movable race and a diameter Sb of a ball orbit of the fixed race is Sa<Sb or Sa>Sb, and the rotation inhibiting mechanism for the movable scroll comprising the movable race, the plurality of balls and the fixed race has a radius of revolution of (Sa+Sb)/2.