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. 19, 1997
Filed:
Jun. 05, 1995
Ronald M Struziak, Longmeadow, MA (US);
John M Beck, East Granby, CT (US);
United Technologies Corporation, Hartford, CT (US);
Abstract
The top foil (12) of the hydrodynamic fluid film journal bearing (10) carries opposing tabs (23,25) at the side edges adjacent the free end (17) thereof and extends radially outward to fit adjacent to the side edges (19,21) of the intermediate foil 14 and the ends of the key 18 when rolled into a cylinder and inserted into the bore of sleeve (24) to prevent skewing of the top foil. In another embodiment skewing is prevented by incorporating opposing tabs (37,39,50,52) at the free ends (31,54) of the top foil (12a) and intermediate foil (14a) that project through predetermined sized slots (40,42) formed in the side edges (44,46) at the fixed end of intermediate slot (14a). The tabs overlie the side edges of the intermediate foil (14b) and bump foil (15) when rolled into a cylinder and prevent skewing and enhancing journal bearing performance.