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:
May. 18, 1982
Filed:
Oct. 03, 1980
Masakazu Kakimoto, Aichi, JP;
Ushio Air Tool Co., Ltd., Aichi, JP;
Abstract
A pneumatic bearing arrangement comprising an outer element and an inner element which both have generally conical configurations. The elements also have concave and convex bearing surfaces, respectively. The elements are disposed in generally concentric relation and define a generally conical bearing space therebetween. A plurality of nozzles are provided on the elements and open adjacent to the bearing surfaces of the elements. A shaft having a generally conical journal member with an inner and outer face is rotatably supported by the bearing space such that a gap exists between the journal and the inner and outer bearing surfaces. When air is jetted into the bearing space through the nozzle air films are created for maintaining the journal floating between the bearing surfaces without contacting either of the surfaces. The outer element, inner element and journal member can be formed with a substantially bell-shaped configuration to increase the bearing surface for both thrust and radial loads. A plurality of journal members can be provided at spaced locations along a shaft which are accommodated by respective pairs of outer and inner elements spaced along the arrangement. The journal members are maintained in a balanced position within the bearing spaces.