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. 07, 1987
Filed:
Aug. 02, 1985
Applicant:
Inventor:
Marcel Staar, Brussels, BE;
Assignee:
Staar Development Company S.A., Brussels, BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
369 84 ; 346 / ; 369100 ; 264106 ;
Abstract
An apparatus and method for reproducing sound recordings on blank films and tapes of plastic materials in which a continuous master film carrying sinuous lines of imprint containing the sound recordings to be reproduced are pressed against a blank tape as both the master film and blank tape are moved continuously at a constant speed and in synchronism past a pressure applying station. A laser is provided to emit a very fine and precise laser heat beam to heat and soften local zones of the blank tape a fraction of a second before being aligned to receive the imprints.