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:
Apr. 18, 1978
Filed:
May. 03, 1976
Applicant:
Inventor:
Robert P Harshberger, Jr, San Jose, CA (US);
Assignee:
Ampex Corporation, Redwood City, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
318 87 ; 318-7 ; 318380 ;
Abstract
A dynamic brake for the supply reel motor of a tape transport. Upon power failure, the motor is coupled as a generator to supply current to a lamp, which functions as a substantially constant current load, and produces a substantially constant braking torque upon the supply reel.
Quick Actions:
Harshberger, Jr, Robert. (1978). Tape transport dynamic brake (U.S. Patent No. 4085354). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4085354
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile