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. 03, 1983
Filed:
May. 29, 1981
Applicant:
Inventor:
Brian E Lock, Oakland, NJ (US);
Assignee:
RCA Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C25D / ; C25C / ;
U.S. Cl.
CPC ...
156344 ; 204-5 ; 204281 ; 264334 ; 264335 ; 425437 ; 425440 ;
Abstract
An apparatus and method for separating a metal stamper from a metal mold on which the stamper is electro-formed. The gas flows between the mold and stamper to separate the stamper from the mold which are maintained separated by the vacuum applied to their back surfaces. Means is provided for centering the mold-stamper assembly between the backing plates just before the assembly is clamped between the backing plates. Means is provided for mechanically bending the outer peripheral portion of the mold-stamper assembly back and forth to separate the peripheral portion of the stamper from the mold.