Patent ID: 7468487

Claim:
For a wall having an interior side, an exterior side, and an aperture therethrough, a system comprising: a wallplate having a periphery, a forward side and a rearward side; a first arm member positioned at the rearward side of the wallplate, the first arm member comprising a cylindrical portion, an elongated portion extending from the cylindrical portion, and an engagement portion extending from the elongated portion, the engagement portion having an engagement edge, the first arm member being rotatably coupled to the wallplate by the cylindrical portion to pivot about an axis relative to the wallplate, the first arm member being rotatably positionable in a first retracted position within a first area bounded by the periphery of the wallplate and rotatably positionable from the first retracted position to a first extended position to extend beyond the first area; and a second arm member positioned at the rearward side of the wallplate, the second arm member comprising a cylindrical portion, an elongated portion extending from the cylindrical portion, and an engagement portion extending from the elongated portion, the engagement portion having an engagement edge, the second arm member being rotatably coupled to the wallplate by the cylindrical portion to pivot about an axis relative to the wallplate, the second arm member rotatably positionable in a second retracted position within the first area and rotatably positionable from the second retracted position to a second extended position to extend beyond the first area, the first arm member in the first retracted position and the second arm member in the second retracted position being positioned to pass through the wall aperture to place the rearward side of the wallplate against the exterior side of the wall, the first arm member in the first extended position positioning the engagement edge of the engagement portion of the first arm member to contact the interior side of the wall for frictional engagement of the first arm member with the interior side of the wall, the second arm member in the second extended position positioning the engagement edge of the engagement portion of the second arm member to contact the interior side of the wall for frictional engagement of the second arm member with the interior side of the wall, and the wallplate being positioned to frictionally engage the exterior side of the wall when the first arm member is in the first extended position and the second arm member is in the second extended position.