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:
Aug. 20, 2002
Filed:
Nov. 15, 1999
NTN Corporation, Tokyo-to, JP;
Abstract
In a swash plate type compressor comprising a piston slidably received in a cylinder bore disposed parallel with the driving shaft and a swash plate obliquely attached to the driving shaft and engaged by the piston through a bearing device, the bearing device comprises a spherical seat composed of a single concave surface formed in the piston , and a substantially hemispherical shoe contacting the spherical seat , the outer peripheral surface of the shoe being composed of a skirt portion , a top portion having a larger radius of curvature, R , than that R of the spherical seat , and a transition portion contacting the spherical seat between the skirt portion and the top portion and having a smaller radius of curvature, R , than that R of the spherical seat