Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – With floor pit opening for support and safety cover therefor
Reexamination Certificate
2002-01-25
2004-11-09
Lillis, Eileen D. (Department: 3652)
Elevator, industrial lift truck, or stationary lift for vehicle
Stationary lift for roadway vehicle or required component...
With floor pit opening for support and safety cover therefor
C187S275000, C417S038000
Reexamination Certificate
active
06814187
ABSTRACT:
BACKGROUND OF THE INVENTION
This application hereby incorporates by reference U.S. patent application Ser. No. 09/884,673, filed Jun. 19, 2001, titled Removable Cylinder Arrangement For Lift, and U.S. patent application Ser. No. 10/055,800, filed Oct. 26, 2001, titled Electronically Controlled Vehicle Lift And Vehicle Service System, both of which are commonly owned herewith.
Inground lifts are well known in the art. Presently, such lifts are typically enclosed in a containment housing designed to protect the lift components from the environment and to protect the environment from the lift components. Liquid can enter the internal cavity defined by the containment housing as a result of many causes, including due to natural condensation, leaks in the lift components, surface water entering through the top, and ground water entering through a leak in the containment housing.
Damage can occur to the lift components if too much liquid accumulates in the internal cavity. It is thus necessary to monitor the internal cavity for the presence of liquid.
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Illustrated Sourcebook of Mechanical Components, Robert O. Parmley, P.E., Editor-in-Chief, Published by McGraw-Hill (pp. 27-14 through 27-17).
Bordwell Mark
Brown Doug
Porter David
Taylor Bryan
Delaware Capital Formation Inc.
Frost Brown Todd LLC
Lillis Eileen D.
Tran Thuy V.
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