Invention Grant
- Patent Title: Controlling speed of an elevator using a speed reducing switch and governor
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Application No.: US14372412Application Date: 2012-02-03
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Publication No.: US09708157B2Publication Date: 2017-07-18
- Inventor: Joseph L. Della Porta , Barry G. Blackaby
- Applicant: Joseph L. Della Porta , Barry G. Blackaby
- 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/US2012/023747 WO 20120203
- International Announcement: WO2013/115827 WO 20130808
- Main IPC: B66B1/34
- IPC: B66B1/34 ; B66B1/32 ; B66B5/06 ; B66B1/30 ; B66B5/00 ; B66B5/04
Abstract:
A system and method for controlling speed of an elevator car in an elevator system is disclosed. The elevator car may have a speed governor adapted to trip when an electrical tripping point of the speed governor is reached. The elevator system may also have a control system for controlling operation of the elevator car, the control system providing a speed reducing switch adapted to trip when a software tripping point of the speed reducing switch is reached, the software tripping point being reached before the electrical tripping point of the speed governor.
Public/Granted literature
- US20140367206A1 System and Method for Reducing Speed of An Elevator Public/Granted day:2014-12-18
Information query
