Bridges – Gangway – ramp – or dock leveler – Attached
Patent
1995-10-04
1997-07-15
Neuder, William P.
Bridges
Gangway, ramp, or dock leveler
Attached
E01D 100
Patent
active
056470819
ABSTRACT:
A hydraulic hold down locking cylinder is disclosed by replacing mechanical lock arrangements commonly used on less expensive dock boards. This arrangement provides superior performance, reliability, and lower maintenance. In the preferred form all components are provided in a cylindrical casing which is mounted as a variable length locking link in the dock board.
REFERENCES:
patent: 3656199 (1972-04-01), Bregantin
patent: 4091488 (1978-05-01), Artzberger
patent: 4619008 (1986-10-01), Kovach et al.
patent: 5551113 (1996-09-01), Marler et al.
Marler Arnold Harvey
Marler Stanley Allen
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