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:
Jan. 27, 1976
Filed:
Dec. 29, 1970
Applicant:
Inventor:
Robert P Burr, Huntington, NY (US);
Assignee:
Kollmorgen Corporation, Glen Cove, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
318394 ; 318398 ;
Abstract
Apparatus for advancing magnetic tape with respect to a recording head through small, discrete, and uniform displacement increments. A direct current drive motor has an armature shaft that drives a displaceable member. Controls develop signals that energize and deenergize the motor. Included in these controls are a speed responsive tachometer and an acceleration control utilizing a saturable amplifier.
Burr, Robert. (1976). Displacing apparatus (U.S. Patent No. 3935521). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3935521
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile