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. 31, 2012
Filed:
Feb. 13, 2007
Ismail Agirman, Farmington, CT (US);
Vladimir Blasko, Avon, CT (US);
Frank Higgins, Burlington, CT (US);
Ismail Agirman, Farmington, CT (US);
Vladimir Blasko, Avon, CT (US);
Frank Higgins, Burlington, CT (US);
Otis Elevator Company, Farmington, CT (US);
Abstract
A system () continuously drives an elevator hoist motor () during normal and power failure operating conditions. A regenerative drive () delivers power to the hoist motor () from a main power supply () during the normal operating condition and from a backup power supply () during the power failure operating condition. A controller () operates the regenerative drive () to provide available power on the regenerative drive () to the backup power supply () during the normal operating condition.