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:
Oct. 09, 1979
Filed:
Sep. 21, 1977
Abraham Eshel, Los Altos, CA (US);
Ampex Corporation, Redwood City, CA (US);
Abstract
A foil member is stretched over a body of pressurizing material so as to be caused to balloon outwardly toward a rotating shaft. A fluid (e.g., air) film bearing is formed between the foil and shaft. The pressurizing material for the foil may be incompressible, but capable of plastic flow (e.g., water). Consequently, the foil is substantially stiff and unyielding to movement of the shaft toward the foil, but is locally yielding as to particles of foreign material that may get into the air film zone between foil and shaft or to misalignment of the shaft, and elastically recovers its original shape when the particle is gone, or the misalignment is corrected, having meanwhile suffered no damage.