Supports – Props and braces
Reexamination Certificate
2000-09-14
2001-11-20
Ramirez, Ramon O. (Department: 3632)
Supports
Props and braces
C248S309200, C248S215000, C052S143000, C254S045000, C254S13300A
Reexamination Certificate
active
06318693
ABSTRACT:
BACKGROUND OF THE INVENTION
Rental storage buildings are available in many cities at centralized locations for people to bring their items to be stored away from their own premises. While this approach for temporary storage has been reasonably successful, what is needed is a portable building having a concrete floor which may be factory manufactured but is capable of being delivered to the home or business of the party needing additional storage space.
SUMMARY OF THE INVENTION
There are several features to this invention that cooperate to make factory fabrication of portable buildings having concrete floors practical for delivery to the location where the buildings will be used. The first feature is the metal mold for the concrete floor is in sections which may be interconnected to provide a floor of any desired length. Each mold section includes a raised center relative to an outer channel which extends around each center section. The channel has a vertical exterior flange to which the mold sections are connected together along their adjacent sides, or removable end and side plates are attached which are removed when the poured concrete has set.
The channel at the ends of each mold section includes a pair of sleeves which become embedded in the poured concrete and receive lift pins. These lift pins connect jacks to the floor after the mold end walls have been removed thereby allowing the building including the floor, to be raised for a truck flatbed to be moved thereunder such that the portable building may be transported.
The lift pin sleeves are connected to L-shaped reinforcing rod brackets which extend the length of the channel to reinforce the poured concrete. A sleeve extends in the channel between mold sections to interconnect removable walls at opposite ends of the mold sections. While the concrete is being poured a rod extends in these sleeves to interconnect the opposite mold section end walls.
The mold section removable side walls also include a horizontally inwardly extending flange to which a removable building wall base plate is attached for being anchored in concrete to provide a ledge for the bottom edge of the building end wall.
The removal of the concrete floor from the mold is accomplished through use of lifting brackets at oppositely disposed front and back sides of the floor which engage the floor through the lift pins received in sleeves embedded in the concrete channels. Hydraulic jacks engage the removable lift brackets for raising and lowering the floor in the factory and at the job site when being put on or removed from a truck flatbed. Hydraulic circuitry for the jacks is provided which equalizes the lifting action of each jack such that the raising and lowering is uniform at each jack, keeping the floor level. The lift bracket is L-shaped and may have attached to the horizontal leg of the bracket, a caster allowing the floor to be moved about on the casters.
Erection of the building front wall may be accomplished through the use of a pair of hoists moveable on rails supported on standards supported on the horizontal legs of the lift brackets. A wall is laid across the building floor with the lower most wall edge being positioned on a ledge below the top surface of the floor extending along the forward edge of the concrete floor. The hoists are attached to the opposite (upper) wall edge. Operation of the hoist to pivot the wall occurs with the hoist moving along the rail toward the vertical plane of the wall when erected.
It is thus seen that the concrete floor is easily fabricated, walls erected and attached with the completed building being raised by the jacks through use of the removable jack brackets such that after the metal floor mold has been removed from under the floor a flatbed truck can be moved under the building for transport to the location where the building will be used. The storage building may have any number of units each with its own garage-type door. Each unit has a concrete floor formed through the use of two mold sections.
REFERENCES:
patent: 2554910 (1951-05-01), Jensen
patent: 3275298 (1966-09-01), Hand
patent: 5593272 (1997-01-01), Green
patent: 5806836 (1998-09-01), Wilson
Chan Korie
Ramirez Ramon O.
Zarley McKee Thomte Voorhees & Sease
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