Work holders – With fluid means
Reexamination Certificate
1999-10-27
2001-11-27
Watson, Robert C. (Department: 3723)
Work holders
With fluid means
C269S037000, C269S069000, C269S2890MR, C269S904000, C254S0930HP, C254S134000
Reexamination Certificate
active
06322062
ABSTRACT:
CROSS REFERENCE TO RELATED APPLICATIONS
Not Applicable
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
Not Applicable
BACKGROUND OF THE INVENTION
The installation of hanging cabinets on walls has been a traditionally cumbersome and potentially hazardous activity. In order to secure the cabinets, typically two workers are required to perform the installation. With this method, prior to the installation of ground-level cabinets, the wall cabinets are installed. One worker holds the cabinet in place against the wall, while the other worker secures the cabinet to the wall, usually with screws. This operation is relatively expensive, since two workers are required.
If only one worker is available to perform the installation of wall cabinets, the worker will typically prop the cabinet in place with a board or post holding the cabinet with one hand and securing the cabinet with a screwdriver with the other hand. This method presents a precarious and potentially injurious situation, as the board or post cannot hold the cabinet reliably. It is therefore desirable to provide an inexpensive but safe method of installing wall cabinets.
BRIEF SUMMARY OF THE INVENTION
The present invention relates to a cabinet lifting system for installation of wall type cabinets.
The cabinet lifting system of the present invention has three primary parts; a base section, a lifting mechanism resting upon the base section, and a platform section oriented above the lifting mechanism. The lifting mechanism is capable of raising the platform section and keeping the platform section in place for holding a wall cabinet, and lowering away from the wall cabinet after the wall cabinet is fixed to the wall. The cabinet lifting system of the present invention is portable. The platform section of the cabinet lifting system is preferably modular, with an upper and lower platform spaced apart by intermediate, removable extensions. Different sized cabinets may be accommodated by utilization of appropriately selected intermediate extensions.
Unlike typical installation procedures, the present invention is employed after the installation of the ground level cabinets. The cabinet lifting system is positioned on top of a ground level cabinet, and the wall cabinet to be installed is placed on the cabinet lifting system. The wall cabinet to be installed is then raised to the appropriate position on the wall, and held in place by the cabinet lifting system. After the wall cabinet is secured to the wall, the cabinet lifting system is removed by releasing the lifting mechanism, thereby lowering the upper platform of the cabinet lifting system away from the installed cabinet.
REFERENCES:
patent: 3567183 (1971-03-01), Voss
patent: 3727884 (1973-04-01), Custer
patent: 4123038 (1978-10-01), Meyers
patent: 4723756 (1988-02-01), Stumpf
patent: 4955592 (1990-09-01), Brennan
patent: 5139233 (1992-08-01), Goss
patent: 5372353 (1994-12-01), West
Conn Edwin L.
McDowell Tommy M.
Polster Lieder Woodruff & Lucchesi L.C.
Watson Robert C.
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