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US 9,181,691 B2Granted
Quick connect anchor for poured concrete ceilings on metal or wood decks
OwnerWilliam J. Thompsoninventor
Life of this patent
Estimating the term…
Abstract
An internally threaded anchor for use in poured concrete floors having a metal deck or a wood form. The threaded anchor provides quick and easy attachment to threaded support rods that carry racks for utilities, piping, or ceiling grid systems. Each threaded anchor is capable of accepting different diameter rods or bolts with different thread cuts. Each anchor accepts the different diameter threaded rods by a single insertion motion, without the need to thread the rod into the anchor. Full insertion is visually verifiable when the marked end of the rod inserted into the anchor is no longer visible. An authentication tag visible upon full insertion indicates that authorized rod is being used.
Claims26
A quick-connect anchor for accepting threaded rod of different diameters once encapsulated by concrete poured over a metal deck, at about a thickness of 3 to 3¼ inches, the anchor comprising:
- a casing no longer than 2¼ inches attachable to the metal deck, the casing allowing at least a 1 inch concrete layer on top of the encapsulated anchor, the casing having a first end and a second end, a head closing the first end and an opening of a predetermined diameter at the second end, a cavity in the casing extending from the first end to the second end, the casing having a diameter larger than the diameter of the opening at the second end of the casing;
- a plurality of separate arcuate internally threaded segments captured in the cavity of the casing, each segment adapted for independent axial movement in the casing, each segment having a first end and a second end, the second end of each segment located closest to the open second end of the casing, each segment having at least two different diameter thread portions along its length, a larger diameter thread portion at the second end of each segment, and a smaller diameter thread portion at the first end of each segment;
- a spring in the cavity of the casing between the head at the closed first end of the casing and the first end of the plurality of arcuate internally threaded segments;
- and
- a plate located on the cylindrical casing for holding the casing to the metal deck before concrete is poured, with the open second end of the casing adjacent to an aperture in the metal deck.
2 more elements
A quick-connect anchor for accepting threaded rod of different diameters, once encapsulated by concrete poured over a wood deck at about a thickness of 3 to 3¼ inches, the anchor comprising:
- a casing no longer than 2¼ inches attachable to the wood deck, the casing allowing at least about a 1 inch concrete layer on top of the encapsulated anchor, the casing having a first end and a second end, a head closing the first end and an opening of a predetermined diameter at the second end, a cavity in the casing extending from the first end to the second end, the casing having a diameter larger than the diameter of opening at the second end of the casing;
- a plurality of separate arcuate internally threaded segments captured in the cavity of the casing, each segment capable of independent axial movement in the casing, each segment having a first end and a second end, the second end of each segment located closest to the open second end of the casing, each segment having at least two different diameter thread portions along its length, a larger diameter thread portion at the second end of each segment and a smaller diameter thread portion at the first end of each segment;
- a spring in the cavity of the casing between the head at the closed first end of the casing and the first end of the plurality of arcuate internally threaded segments;
- a sleeve with a boss attached to the exterior of the casing at the open second end;
- and
- a plurality of nails held by the boss with the heads of the nails located underneath the head at the closed first end, the nails adapted for holding the casing to the wood deck before concrete is poured.
3 more elements
An anchor kit for use in a concrete slab poured over a deck, containing a quick-connect anchor for accepting threaded rod of different diameters, once encapsulated by concrete poured on the deck, the kit comprising:
- a quick connect anchor having:
- a casing adaptable for attachment to the deck, the casing sized to allow at least about a 1 inch concrete layer on top of the encapsulated anchor, the casing having a first end and a second end, a head closing the first end and an opening of a predetermined diameter at the second end, a cavity in the casing extending from the first end to the second end, the casing having a diameter larger that the diameter of the opening at the second end of the casing;
- a plurality of separate arcuate internally threaded segments captured in the cavity of the casing, each segment capable of independent axial movement in the casing, each segment having a first end and a second end, the second end of each segment located closest to the open second end of the casing, each segment having at least two different diameter thread portions along its length, a larger diameter thread portion at the second end of each segment and a smaller diameter thread portion at the first end of each segment;
- a spring in the cavity of the casing between the head at the closed first end of the casing and the first end of the plurality of arcuate internally threaded segments;
- and
- a threaded rod of a predetermined length having a first end and a second end and a diameter smaller than the diameter of the opening in the second end of the anchor casing, the diameter of the rod matching the diameter of one of the thread portions of the segments in the casing, the threaded rod having a visual marker comprising a marked predetermined distance from the first end, and an authentication tag, whereby on full insertion of the rod into the casing, the visual marker disappears from view and only the authentication tag is visible.
3 more elements
A suspension kit for utilities or conduit for use with a concrete slab poured over a deck containing quick-connect anchors for accepting threaded rod of different diameters once the anchors are encapsulated by concrete, the kit comprising:
- A. a plurality of quick-connect anchors, each anchor having:
- (a) a casing adaptable for attachment to the deck, the casing sized to allow at least about a 1 inch concrete layer on top of the encapsulated anchor, the casing having a first end and a second end, a head closing the first end and an opening of a predetermined diameter at the second end, a cavity in the casing extending from the first end to the second end, the casing having a diameter larger than the diameter of the opening at the second end of the casing;
- (b) a plurality of separate arcuate internally threaded segments captured in the cavity of the casing, each segment adapted for independent axial movement in the casing, each segment having a first end and a second end, the second end of each segment located closest to the open second end of the casing, each segment having at least two different diameter thread portions along its length, a larger diameter thread portion at the second end of each segment and a smaller diameter thread portion at the first end of each segment;
- (c) a spring in the cavity of the casing between the head at the closed first end of the casing and the first end of the plurality of arcuate internally threaded segments;
- and
- B. a suspension assembly having:
- (a) at least two threaded rods of a predetermined length, each rod having a first end and a second end and a diameter smaller than the diameter of the opening in the second end of the anchor casing, the diameter of the rod matching the diameter of one of the thread portions of the segments in the casing, the threaded rod having a visual marker comprising a marked predetermined distance from the first end, and an authentication tag, whereby on full insertion of the rod into the casing, the visual marker disappears from view and only the authentication tag is visible;
- and
- (b) at least one support bracket fastened to the at least two threaded rods at their respective second ends to form a support platform for utilities or conduit,
- whereby the support bracket is suspended from the concrete slab by inserting the first ends of the threaded rods into respective quick-connect anchors in the concrete slab and pushing vertically upward to obtain full engagement of all the threaded rods, as indicated by disappearance of the visual marker.
7 more elements
Dependencies are inferred from the claim text.