Inventor
WURTS WILLIAM A
US4 patents
Patents
4 patentsUS5889239AMar 30, 1999
Method for monitoring elevator leveling performance with improved accuracy
OTIS ELEVATOR CO53 citations94
US5732740AMar 31, 1998
Smart accumulator to attenuate pulses in a hydraulic elevator
OTIS ELEVATOR CO23 citations86
US6147620ANov 14, 2000
Remote monitoring of elevator cab lights
OTIS ELEVATOR CO10 citations71
US5467599ANov 21, 1995
Method for reducing seal stiction in a fluid cylinder
OTIS ELEVATOR CO3 citations61