Invention Grant
- Patent Title: Self-propelled elevator system having windings proportional to car velocity
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Application No.: US14897106Application Date: 2013-06-27
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Publication No.: US10280041B2Publication Date: 2019-05-07
- Inventor: Fernando Rodriguez
- Applicant: OTIS ELEVATOR COMPANY
- Applicant Address: US CT Farmington
- Assignee: OTIS ELEVATOR COMPANY
- Current Assignee: OTIS ELEVATOR COMPANY
- Current Assignee Address: US CT Farmington
- Agency: Cantor Colburn LLP
- International Application: PCT/US2013/048054 WO 20130627
- International Announcement: WO2014/209309 WO 20141231
- Main IPC: B66B1/06
- IPC: B66B1/06 ; B66B11/04 ; H02K41/03
Abstract:
An elevator system includes a hoistway and an elevator car to travel in the hoistway. Permanent magnets are mounted to the elevator car and primary windings are mounted in the hoistway to form a linear motor. The primary windings having a first section having a first number of turns and a second section having a second number of turns. The first number of turns is less than the second number of turns.
Public/Granted literature
- US20160137459A1 SELF-PROPELLED ELEVATOR SYSTEM HAVING WINDINGS PROPORTIONAL TO CAR VELOCITY Public/Granted day:2016-05-19
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