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:
Jul. 30, 1991
Filed:
Nov. 22, 1989
Geoffrey Wilson, Chesterfield, GB;
Gareth A Evans, Sheffield, GB;
Sarclad International Limited, Chesterfield, GB;
Abstract
Apparatus for use when machining or applying a textured finish to a surface of a workpiece comprises a receptacle for containing dielectric fluid which is closed on all sides excepting that side which, in use of the apparatus, engages the adjoining surface of the workpiece. The open side of the receptacle carries a flexible structure which can be moved towards and away from the workpiece surface between a first position in which the open side of the receptacle is spaced from the workpiece and a second position in which the workpiece surface closes off the open side of the receptacle. The flexible structure carries at its edge surface a resilient member whose contour can be varied to match the contour of the workpiece. In a preferred embodiment the flexible structure comprises a bellows-like structure.