Safety device and method for entering in elevator shaft

Application Number: 00126298
Application Date: 2000.08.29
Publication Number: 1286208
Publication Date: 2001.03.07
Priority Information: 1999/8/30 US 09/385535
International: B66B5/00
Applicant(s) Name: Otis Elevator Co.
Inventor(s) Name: F.M. Sanserflo
Patent Agency Code: 72001
Patent Agent: chen ji
Abstract The condition of the hoistway doors and the elevator door are continuously monitored. The opening of a hoistway door unaccompanied by opening of the car door being an indication of hoistway access; the car then is moveable only at inspection (slow) speed by utilizing controls on the car top; restoration to normal is achieved only by returning the inspection switch on the car top to normal operation while a hoistway door is open, and subsequently closing the hoistway doors and/or by activating a reset located outside the hoistway.