Bridges – Gangway – ramp – or dock leveler – Attached
Patent
1996-10-22
1998-10-27
Lisehora, James
Bridges
Gangway, ramp, or dock leveler
Attached
E01D 100
Patent
active
058262911
ABSTRACT:
A dock leveler having a frame adapted to be fixedly mounted at a dock with a deck, pivotally mounted to the frame at one end thereof, and having a pivotable lip at the other end. A spring is mounted to the deck and the frame and supports the deck. An electric actuator is coupled to the deck and moves the deck from a generally horizontal stored position into an operative position. A control circuit is employed for controlling operation of the electrical actuator. A float member couples the actuator to the frame and carries a sensor. A limit switch is responsive to movement of the sensor so that power is terminated to the actuator when the deck reaches either an operative elevated position or a fully lowered position. In the operative elevated position float is provided by having the float member displaced from the frame to allow the electric actuator to move with the deck without being powered to reposition the system.
REFERENCES:
patent: Re30250 (1980-04-01), Catlett
patent: 2904802 (1956-12-01), Hartman
patent: 3835497 (1974-09-01), Smith
patent: 3921241 (1975-11-01), Smith
patent: 3982295 (1976-09-01), Burnham
patent: 4020517 (1977-05-01), Waddell
patent: 4081874 (1978-04-01), Artzberger
patent: 4097949 (1978-07-01), Barrett
patent: 4110860 (1978-09-01), Neff et al.
patent: 4343058 (1989-08-01), Loblick
patent: 4364137 (1982-12-01), Hahn
patent: 4455703 (1984-01-01), Fromme et al.
patent: 4800604 (1989-01-01), Alten
patent: 4827549 (1989-05-01), Walker
patent: 4944062 (1990-07-01), Walker
patent: 5500968 (1996-03-01), Hodges
patent: 5560733 (1996-10-01), Dickinson
Lisehora James
United Dominion Industries, Inc.
LandOfFree
Electrically actuated dock leveler does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electrically actuated dock leveler, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrically actuated dock leveler will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1604745