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:
Mar. 25, 2014
Filed:
Mar. 23, 2007
Jacek F. Gieras, Glastonbury, CT (US);
Peng Wang, Cheshire, CT (US);
Lisa A. Prill, Glastonbury, CT (US);
Pei-yuan Peng, Ellington, CT (US);
Bryan Slewert, Westbrook, CT (US);
Robert H. Dold, Monson, MA (US);
Jacek F. Gieras, Glastonbury, CT (US);
Peng Wang, Cheshire, CT (US);
Lisa A. Prill, Glastonbury, CT (US);
Pei-Yuan Peng, Ellington, CT (US);
Bryan Slewert, Westbrook, CT (US);
Robert H. Dold, Monson, MA (US);
Otis Elevator Company, Farmington, CT (US);
Abstract
An exemplary electromagnetic coupling device includes an electromagnet and a vane member that is selectively magnetically coupled with the electromagnet. A non-magnetic slider layer is supported on one of the electromagnet or the vane member such that the slider layer is between the electromagnet and the vane member. The slider layer maintains a spacing between the electromagnet and the vane member. In a disclosed example, the electromagnetic coupling device is used for coupling an elevator car door to a hoistway door for moving the doors in unison between open and closed positions.