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. 23, 1982
Filed:
Dec. 26, 1979
Richard M Castle, Indianapolis, IN (US);
RCA Corporation, New York, NY (US);
Abstract
A diamond stylus for electromechanically recording short wavelength video signal information in a metal disc master is supported in a cutterhead suspension apparatus. A set of parallel spring steel suspension members are used to mount a cutting stylus assembly including the diamond stylus to an electromechanical recording lathe. A cutterhead suspension velocity control apparatus couples the cutterhead suspension apparatus to the main frame of the electromechanical recording lathe. When the cutterhead suspension is lowered onto the disc master surface the velocity control apparatus controls the rate at which the cutterhead suspension descends to the disc master surface.