Circumferentially balanced, take-up device
OwnerAlfred Comminsinventor
Life of this patent
Estimating the term…
Abstract
An apparatus that is expandable axially along an anchor between a surface and a retainer fastened to the anchor is disclosed in one aspect of the present invention as including a base member; a slide member that slides relative to the base member to effect a change in height of the apparatus; a load-transfer mechanism to transfer a load from the base member to the slide member, the load-transfer mechanism providing substantially balanced axial support to the slide member along a circumferential direction regardless of the height of the apparatus; and a biasing member to urge the slide member with respect to the base member to increase the height of the apparatus.
Claims20
An apparatus, expandable axially along an anchor between a surface and a retainer:
- fastened to the anchor, the apparatus comprising:
- a base member;
- a slide member adapted to slide relative to the base member to effect a change in height of the apparatus;
- a load-transfer mechanism to transfer a load from the base member to the slide member, the load-transfer mechanism providing substantially balanced axial support to the slide member along a circumferential direction regardless of the height of the apparatus;
- and
- a biasing member to urge the slide member with respect to the base member to increase the height of the apparatus.
An apparatus, expandable axially along an anchor between a surface and a retainer fastened to the anchor, the apparatus comprising:
- a base member;
- a slide member adapted to slide relative to the base member to effect a change in height of the apparatus;
- a load-transfer mechanism to transfer a load from the base member to the slide member, the load-transfer mechanism providing an axial load distributed substantially uniformly along a circumferential direction thereof regardless of the height of the apparatus;
- and
- a biasing member to urge the slide member with respect to the base member to increase the height of the apparatus.
An assembly comprising:
- a structure comprising a foundation, a structural member, an anchor extending in a first direction from the foundation through the structural member, and a fastener engaging the anchor at a location spaced from the structural member in the first direction;
- and
- a take-up unit to occupy excess distance between the structural member and the fastener, the take-up unit comprising:
- a base member;
- a slide member adapted to slide relative to the base member to effect a change in height of the take-up unit;
- a load-transfer mechanism to transfer an axial load from the base member to the slide member and to distribute the axial load substantially uniformly along a circumferential direction regardless of the height of the apparatus;
- and
- a biasing member to urge the slide member with respect to the base member to increase the height of the take-up unit.
Dependencies are inferred from the claim text.