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:
Dec. 09, 2014
Filed:
Feb. 24, 2009
Frank Breme, Hausen am Albis, CH;
Laurent Jordi, Charmey, CH;
Edward Mcpherson, Asslar, DE;
Stefan Schäfer, Hüttenberg, DE;
Marc Savoie, Wetzlar, DE;
Frank Breme, Hausen am Albis, CH;
Laurent Jordi, Charmey, CH;
Edward McPherson, Asslar, DE;
Stefan Schäfer, Hüttenberg, DE;
Marc Savoie, Wetzlar, DE;
Satisloh AG, Baar, CH;
Abstract
A block piece for holding a spectacle lens blank has a basic body with a workpiece mounting face portion against which the workpiece can be blocked with a blocking material, and a clamping portion via which the blocked workpiece can be fixed in a machine/apparatus for processing it. The basic body is made substantially of a material having a defined low water absorption and/or is sealed to at least reduce outgassing of water moisture under vacuum conditions, so that the block piece can be used also in vacuum coating processes. Alternatively or in addition, the clamping portion is constructed to be clamped by forces directed essentially perpendicular to the radial direction to cancel out each other and not deform the basic body, and/or the workpiece mounting face portion is provided with a predetermined amount of prism.