Pop-up service fitting
First Claim
1. An electrical service fitting apparatus, comprising:
- a base frame having a generally rectangular frame opening defined therethrough;
an extensible service fitting disposed through said frame opening and movable relative to said frame between a retracted position and an extended position;
said base frame having a plurality of grooves defined therein, said grooves opening into and communicating with said frame opening;
said service fitting having a plurality of elongated ribs defined thereon, said ribs being received in said grooves so that said ribs may slide in said grooves to guide said service fitting as it moves between said retracted and extended positions, at least one groove and associated rib being located on each end of two opposite sides of said frame opening; and
spring biasing means for biasing said service fitting toward said extended position.
1 Assignment
0 Petitions
Accused Products
Abstract
An electrical service fitting apparatus includes a base frame having a frame opening defined therethrough. An extensible service fitting is disposed through the frame opening and movable relative to the base frame between a retracted position and an extended position. The base frame has a plurality of grooves defined therein which open into the frame opening. The service fitting has a plurality of elongated ribs defined thereon which are received in the grooves so that the ribs may slide in the grooves to guide the service fitting as it moves between its retracted and extended position. A pair of coiled tape springs are connected between the base frame and the service fitting to bias the service fitting toward its extended position. Two sliding latches are provided to lock the service fitting in its retracted position. A top plate of the service fitting has access openings defined therein through which attachment devices can be accessed so as to mount the apparatus on a duct placed in a concrete floor.
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Citations
16 Claims
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1. An electrical service fitting apparatus, comprising:
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a base frame having a generally rectangular frame opening defined therethrough; an extensible service fitting disposed through said frame opening and movable relative to said frame between a retracted position and an extended position; said base frame having a plurality of grooves defined therein, said grooves opening into and communicating with said frame opening; said service fitting having a plurality of elongated ribs defined thereon, said ribs being received in said grooves so that said ribs may slide in said grooves to guide said service fitting as it moves between said retracted and extended positions, at least one groove and associated rib being located on each end of two opposite sides of said frame opening; and spring biasing means for biasing said service fitting toward said extended position. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An electrical service fitting apparatus comprising:
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a base frame having a frame opening defined therethrough; an extensible service fitting disposed through said frame opening and movable relative to said base frame between a retracted position and an extended position; and first and second spring means, located at opposing positions adjacent said frame opening and connected between said base frame and said service fitting, for biasing said service fitting toward its said extended position. - View Dependent Claims (9, 10, 11, 12, 13)
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14. An electrical service fitting apparatus to use with a duct to be placed in a floor, comprising:
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a base frame having a frame opening defined therethrough and having an uppermost surface and a recessed upward facing surface, said recessed surface being adjacent said frame opening and extending laterally beyond said frame opening to an outer perimeter of said recessed surface; a plurality of attachment means for attaching said base frame to said cut, said attachment means being located within said outer perimeter of said recessed surface; and an extensible service fitting movable relative to said base frame between a retracted position and an extended position, said service fitting having a vertically oriented portion received through said frame opening and having an upper plate attached to said vertically oriented portion and dimensioned to fit closely within said outer perimeter of said recessed surface and o fit flush with said uppermost surface when said service fitting is in said retracted position, said upper plate having a plurality of access openings defined therein through which said plurality of attachment means can be accessed so that said apparatus can be mounted on said duct. - View Dependent Claims (15, 16)
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Specification