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:
Feb. 14, 1978
Filed:
Nov. 23, 1976
Escher Wyss Limited, Zurich, CH;
Abstract
Hydrostatic apparatus for supporting a mobile part which moves relatively to a foundation comprises a bearing shoe having a bearing face containing a pressure pocket, and a hydraulic servomotor which exerts on the shoe a force urging it toward the mobile part. A support element connected with the shoe and the foundation positively holds the shoe against movement in at least one direction along its supporting axis, and its restraint is so correlated with the pressure forces acting on the shoe that the latter is rendered non-displaceable. Depending upon the relative magnitudes of the forces developed by the servomotor and by the pressure acting on the bearing face, the support element may normally be unloaded, loaded in tension or loaded in compression. In the first case, the support element prevents movement of the shoe in opposite directions along the support axis, whereas in the second and third cases it may permit movement of the shoe toward and away from the foundation, respectively.