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. 03, 2006
Filed:
Sep. 27, 1999
Applicants:
Frederick H. Barker, Bristol, CT (US);
Richard E. Peruggi, Glastonbury, CT (US);
Inventors:
Frederick H. Barker, Bristol, CT (US);
Richard E. Peruggi, Glastonbury, CT (US);
Assignee:
Otis Elevator Company, Farmington, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66B 5/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
A safety device to arrest movement of an elevator car guided by non-metallic guide rails employs a friction surface mounted on a wedge. The wedge is located in proximity to an angular horizontal locator when in the unengaged position. Upon activation of the wedge during an overspeed condition the horizontal locator urges the friction surface of the wedge into contact with the guide rail.
Barker, Frederick. (2006). Concrete rail safety device for an elevator car (U.S. Patent No. 6981575). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6981575
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile