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:
Oct. 06, 1992
Filed:
Sep. 27, 1990
Applicant:
Inventor:
Masami Nomura, Inazawa, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66B / ;
U.S. Cl.
CPC ...
187108 ; 187109 ;
Abstract
An electromagnetic brake for arresting the rotation of a driving shaft of an elevator includes a pair of brake shoes and a pair of plungers operated by separate solenoidal coils. Each plunger is in communication with a corresponding break shoe. A brake coil exciting circuit is provided for exciting the brake coils and differentiating the timing at which the excitations of the brake coils are attenuated, so that the brake shoes can be applied to the driving shaft intermittently.
Nomura, Masami. (1992). Two stage electromagnetic braking device for an elevator (U.S. Patent No. 5153389). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5153389
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile