Invention Grant
- Patent Title: Self-propelled cargo lift for elevator systems
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Application No.: US14765928Application Date: 2013-02-06
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Publication No.: US09776832B2Publication Date: 2017-10-03
- Inventor: Tadeusz Pawel Witczak , Richard N. Fargo , Martin J. Hardesty
- 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/US2013/024803 WO 20130206
- International Announcement: WO2014/123515 WO 20140814
- Main IPC: B66B11/04
- IPC: B66B11/04 ; B66B9/02 ; B66B19/00
Abstract:
An elevator system includes a car, configured to travel through a hoistway; a first stationary drive unit, configured to be mounted in a hoistway, a first movable drive unit, configured to be functionally coupled to the car and to the first stationary drive unit, and a second movable drive unit, configured to be functionally coupled to the car and to the first stationary drive unit.
Public/Granted literature
- US20150368071A1 SELF-PROPELLED CARGO LIFT FOR ELEVATOR SYSTEMS Public/Granted day:2015-12-24
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