Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – Having specific drive means for support
Reexamination Certificate
2001-06-19
2003-06-03
Kramer, Dean J. (Department: 3652)
Elevator, industrial lift truck, or stationary lift for vehicle
Stationary lift for roadway vehicle or required component...
Having specific drive means for support
C187S205000, C187S272000
Reexamination Certificate
active
06571919
ABSTRACT:
BACKGROUND OF THE INVENTION
In-ground lifts are well-known in the art. These lifts are usually enclosed in a containment housing, which is substantially closed on its bottom and sides and open on its top. One problem with these lifts is that it is difficult to remove a cylinder for maintenance. Usually, in order to remove the cylinder, the lift and/or the cylinder must be substantially disassembled, which requires a significant amount of down-time, manpower, and use of heavy equipment. Disassembly also permits dirt and air to enter the inside of the cylinder, which is undesirable.
SUMMARY OF THE INVENTION
The present invention provides a cylinder arrangement in which maintenance is much easier than in prior art in-ground lifts, saving significant amounts of down-time and manpower.
In a lift made in accordance with the present invention, the closed and sealed cylinder unit is installed so that it rests on the fixed frame of the lift by gravity and is trapped between the fixed frame and a removable portion of the movable frame. There are no connections or fittings between the cylinder unit and the stationary lift frame at the bottom of the stationary lift frame which must be disconnected in order to remove the cylinder unit from the lift. Thus, the cylinder unit can readily be removed from the lift as an intact unit for repair or replacement.
REFERENCES:
patent: 1919156 (1933-07-01), Banning, Jr.
patent: 1985510 (1934-12-01), Lunati
patent: 2844218 (1958-07-01), Hott
patent: 3279562 (1966-10-01), Farrell
patent: 3489248 (1970-01-01), Clarke
patent: 4452340 (1984-06-01), Hernick et al.
patent: 5143179 (1992-09-01), Hornstein
patent: 5501296 (1996-03-01), Fletcher
patent: 5573083 (1996-11-01), Fletcher et al.
patent: 5678253 (1997-10-01), Baker
patent: 20760 (1930-04-01), None
patent: 1209268 (1966-01-01), None
patent: 4028484 (1992-03-01), None
patent: 1379190 (1964-10-01), None
patent: 1072375 (1967-06-01), None
patent: 402147585 (1990-06-01), None
patent: 406183667 (1994-07-01), None
Drawing of Lift by Nussbaum on Sale Prior to Jun. 19, 2001.
Camoriano Theresa Fritz
Camoriano and Associates
Chin Paul T.
Delaware Capital Formation Inc.
Kramer Dean J.
LandOfFree
Removable cylinder arrangement for lift does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Removable cylinder arrangement for lift, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Removable cylinder arrangement for lift will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3159405