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:
Nov. 15, 1994
Filed:
Jan. 14, 1993
Toshiba Kikai Kabushiki Kaisha, Tokyo, JP;
Abstract
A hydrostatic bearing apparatus comprises a base member having a static pressure guide surface to which a static pressure pocket is formed, a temperature detector for detecting a temperature of an operation oil in the static pressure pocket at an outlet portion thereof and generating a signal representing the detected outlet temperature of the operation oil, a temperature controller for controlling a temperature of the operation oil to be supplied in the static pressure pocket in response to the signal from the temperature detector, and a pressure controller for controlling a pressure in the static pressure pocket by controlling a flow rate of the operation oil supplied to the static pressure pocket. An operation oil source storing the operation oil to be supplied to the static pressure pocket is further disposed. A gap between the static pressure guide surface and a member to be supported of the hydrostatic bearing apparatus is maintained always constant in accordance with the control of the operation oil temperature and the operation oil pressure.