Apparatus and method for raising buried housings
First Claim
1. An apparatus for raising a buried article comprising:
- a plurality of support leg assemblies, each of said support leg assemblies having a first end adapted to be placed upon a supporting surface, and a second end;
a frame shiftably mounted on said support leg assemblies wherein the frame can be lifted and lowered relative to the supporting surface, said frame including upper and lower crossbar sections having terminal ends, with the upper and lower crossbar sections being pivotally interconnected; and
a plurality of lifting elements, each of said lifting elements having a first portion adapted to be connected, at a selected position along a length of a respective said lifting element, to said frame, and a second portion adapted to be removably attached to a buried article, wherein a buried article interconnected to the frame through the plurality of lifting elements can be raised upon shifting of the frame relative to the plurality of support leg assemblies.
1 Assignment
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Accused Products
Abstract
An apparatus for raising a buried housing or other article includes a frame, a plurality of support leg assemblies, a plurality of lifting members for attaching the frame to the buried housing, and a device for raising the frame, and thereby the buried housing, relative to a supporting ground surface. Preferably, the frame includes a pair of pivotally attached crossbar sections, the lifting members constitute chains, and the support leg assemblies include threaded rods and pivotable support feet. The apparatus is adapted to be supported above a buried article which is attached to the frame through the lifting members. Thereafter, the frame is lifted relative to the support leg assemblies to raise the article to enable back-filling beneath the article in order to maintain the article at a desired height upon disconnection of the apparatus.
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Citations
16 Claims
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1. An apparatus for raising a buried article comprising:
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a plurality of support leg assemblies, each of said support leg assemblies having a first end adapted to be placed upon a supporting surface, and a second end;
a frame shiftably mounted on said support leg assemblies wherein the frame can be lifted and lowered relative to the supporting surface, said frame including upper and lower crossbar sections having terminal ends, with the upper and lower crossbar sections being pivotally interconnected; and
a plurality of lifting elements, each of said lifting elements having a first portion adapted to be connected, at a selected position along a length of a respective said lifting element, to said frame, and a second portion adapted to be removably attached to a buried article, wherein a buried article interconnected to the frame through the plurality of lifting elements can be raised upon shifting of the frame relative to the plurality of support leg assemblies. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An apparatus for raising a buried article comprising:
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a plurality of support leg assemblies, each of said support leg assemblies having a first end adapted to be placed upon a supporting surface, and a second end;
a frame shiftably mounted on said support leg assemblies wherein the frame can be lifted and lowered relative to the supporting surface, said frame including upper and lower crossbar sections having terminal ends, and a plurality of guide tubes, each of said plurality of tubes being attached to a respective one of the terminal ends of said upper and lower crossbar sections, wherein each of said support leg assemblies includes a threaded rod extending through a respective one of the guide tubes; and
a plurality of lifting elements, each of said lifting elements having a first portion adapted to be connected, at a selected position along a length of a respective said lilting element, to said frame, and a second portion adapted to be removably attached to a buried article, wherein a buried article interconnected to the frame through the plurality of lifting elements cm be raised upon shifting of the frame relative to the plurality of support leg assemblies. - View Dependent Claims (8, 9)
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10. A method of raising a buried article comprising:
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locating a frame on a supporting surface above a buried article to be raised;
interconnecting lifting elements between the frame and the article to be raised;
adjusting the height of the frame relative to the supporting surface such that the article is raised to a position substantially flush with the supporting surface; and
back-filling beneath the article to maintain the article substantially flush with the supporting surface. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification