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:
Jul. 24, 2007
Filed:
Dec. 10, 2004
Randolph W. Huff, Hartsdale, NY (US);
James A. Nickerson, Spring Valley, CA (US);
Randolph W. Huff, Hartsdale, NY (US);
James A. Nickerson, Spring Valley, CA (US);
Thyssen Elevator Capital Corp., Whittier, CA (US);
Abstract
An elevator hall call device inductively receives an electrical signal from an interlock wiring circuit by means of a coupling device. The elevator hall call device comprises a capacitive device which stores electrical charge based on the electrical signal received from the interlock wiring circuit by means of the coupling device. Hall call circuitry sends and receives signaling information between at least one elevator controller over the interlock wiring circuit, where the hall call circuitry is coupled to the capacitive device for receiving electrical power based on the stored electrical charge in the capacitive device.