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| Waste water-oil separator |
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| Technique for increased retention time in oil field settling tanks |
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| Apparatus for separating dispersed phases for fluid mixtures |
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| Settling apparatus |
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| Stabilization of mercury-containing waste |
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Leave-in-place cantilever concrete foundation form
| Details |
Inventors: Barrios, Richard C.;
Assignee: Modern Industries, Inc. (Louisville, KY)
Primary Examiner: Murtagh; John E.
Assistant Examiner:
Attorney, Agent or Firm: Chase; D. A. N.
A foundation form is pre-fabricated, shipped to job site, placed in a hole, leveled, and concrete is poured into it to form a large surface area footing topped by a pedestal having anchor bolts projecting therefrom to secure a cantilevered arm and mast, such as for traffic lights or railroad signals, and the hole is back-filled without removing the form panels. |
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DETAILED DESCRIPTION Accordingly, it is a primary object of the present invention to provide a device and method for installing concrete foundations for cantilever arm-type structures more quickly.
It is a further object of the present invention to provide such a device that is safer to use.
It is a further object of the present invention to provide such a device and method that make a concrete foundation cheaper to install.
It is a further object of the present invention to provide a device and method that reduces the level of skill necessary to install a concrete foundation.
It is another object of the present invention to provide a form work for a foundation that does not need to be braced against the sides of the hole it is seated in because it is self-supporting.
It is a further object of the present invention to provide a device that will allow construction of a concrete foundation that is ready to use sooner than such foundations of the prior art.
These and other objects of the present invention are achieved by providing a pre-fabricated form work having a plurality of legs depending from the pedestal-forming portion of the form work.
A flat foot is attached to each leg, enabling the form work to stand upright in a leveled hole.
A broad-based foundation, or mat, is made of reinforcing bar fixed to the legs intermediate the bottom of the form and the ends of the legs.
This mat is typically about seven feet (2.
15 m) by seven feet (2.
15 m) and two feet (0.
6 m) deep.
The reinforcing bar that forms the bottom mat is assembled into the mat by the workers at the job site, which a three-man crew accomplishes in about half an hour.
The upper, or pedestal, portion of the form work, in a preferred embodiment, comprises four angle iron edges, one set in each corner of a form having a rectangular or square horizontal cross section.
A flat plate is welded to the bottom of each leg, thereby providing a foot for each leg.
These feet enable the completed form to stand by itself.
Because the feet define one plane, and are perpendicular to the legs, the entire form work is automatically leveled when the feet are set onto a level, horizontal surface
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Screen Walls 
