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. 06, 2012
Filed:
Nov. 23, 2005
Ismail Agirman, Farmington, CT (US);
Christopher S. Czerwinski, Farmington, CT (US);
Jeffrey M. Izard, Bolton, CT (US);
Edward D. Piedra, Holyoke, MA (US);
Vladimir Blasko, Avon, CT (US);
Frank Higgins, Burlington, CT (US);
Hanjong Kim, New Britain, CT (US);
Ismail Agirman, Farmington, CT (US);
Christopher S. Czerwinski, Farmington, CT (US);
Jeffrey M. Izard, Bolton, CT (US);
Edward D. Piedra, Holyoke, MA (US);
Vladimir Blasko, Avon, CT (US);
Frank Higgins, Burlington, CT (US);
HanJong Kim, New Britain, CT (US);
Otis Elevator Company, Farmington, CT (US);
Abstract
A hoist motor () for an elevator () is continuously driven from an irregular power supply (). A regenerative drive () delivers power between the power supply () and the hoist motor (). A controller () measures a power supply voltage in response to a detected change in the power supply voltage and controls the regenerative drive () to adjust a nominal motion profile of the elevator () in proportion with an adjustment ratio of the measured power supply voltage to a normal power supply voltage.