Concrete reinforcement support chair
First Claim
1. An apparatus for supporting one or more reinforcement bars or post-tension cables (“
- bars/cables”
) in a concrete structure, the apparatus comprising;
a base member having a centered opening;
a pair of opposing first leg members extending upward from the base member at a first angle;
a pair of opposing second leg members extending upward from the base member at a second angle;
a strap-shaped locking cradle comprising an arc-shaped receiving portion attached to the first and second leg members, a flexible portion suitable for wrapping over the bars/cables and a fastener to affix the flexible portion to the arc-shaped receiving portion or one of the first leg members such that transverse and vertical movement of the bars/cables is limited and longitudinal movement of the bars/cables is allowed; and
a spike extending downward from the strap-shaped locking cradle through the centered opening.
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Accused Products
Abstract
An apparatus (“chair”) for supporting one or more reinforcement bars or post-tension cables (“bars/cables”) in a concrete structure includes a base member having a centered opening, a pair of opposing first leg members extending upward from the base member at a first angle, a pair of opposing second leg members extending upward from the base member at a second angle, and a strap-shaped locking cradle. The strap-shaped locking cradle includes an arc-shaped receiving portion attached to the first and second leg members, a flexible portion suitable for wrapping over the bars/cables and a fastener to affix the flexible portion to the arc-shaped receiving portion or one of the first leg members such that transverse and vertical movement of the bars/cables is limited and longitudinal movement of the bars/cables is allowed.
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Citations
19 Claims
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1. An apparatus for supporting one or more reinforcement bars or post-tension cables (“
- bars/cables”
) in a concrete structure, the apparatus comprising;a base member having a centered opening; a pair of opposing first leg members extending upward from the base member at a first angle; a pair of opposing second leg members extending upward from the base member at a second angle; a strap-shaped locking cradle comprising an arc-shaped receiving portion attached to the first and second leg members, a flexible portion suitable for wrapping over the bars/cables and a fastener to affix the flexible portion to the arc-shaped receiving portion or one of the first leg members such that transverse and vertical movement of the bars/cables is limited and longitudinal movement of the bars/cables is allowed; and a spike extending downward from the strap-shaped locking cradle through the centered opening. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
- bars/cables”
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15. An apparatus for supporting one or more reinforcement bars or post-tension cables (“
- bars/cables”
) in a concrete structure, the apparatus comprising;a base member having a centered opening; a pair of opposing first leg members extending upward from the base member at a first angle oriented perpendicular to the longitudinal axis of the bars/cables; a pair of opposing second leg members extending upward from the base member at a second angle oriented with a longitudinal axis of the bars/cables; a strap-shaped locking cradle comprising an arc-shaped receiving portion attached to the first and second leg members, a flexible portion suitable for wrapping over the bars/cables and a fastener to affix the flexible portion to the arc-shaped receiving portion or one of the first leg members such that transverse and vertical movement of the bars/cables is limited and longitudinal movement of the bars/cables is allowed, and wherein the fastener can be opened and closed without damaging the fastener; and a spike extending downward from the strap-shaped locking cradle through the centered opening to at least one inch below the based member, wherein the spike has one or more break point notches between the strap-shaped locking cradle and the centered opening that allow the spike to be broken off at or above the base member. - View Dependent Claims (16)
- bars/cables”
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17. An apparatus for supporting one or more reinforcement bars or post-tension cables (“
- bars/cables”
) in a concrete structure, the apparatus comprising;a substantially flat base member having a centered opening; a pair of opposing first I-beam shaped leg members extending upward from the base member at a first angle oriented perpendicular to the longitudinal axis of the bars/cables; a pair of opposing second I-beam shaped leg members extending upward from the base member at a second angle oriented with a longitudinal axis of the bars/cables; a strap-shaped locking cradle comprising an arc-shaped receiving portion attached to the first and second leg members, a flexible portion suitable for wrapping over the bars/cables and a fastener to affix the flexible portion to the arc-shaped receiving portion or one of the first leg members such that transverse and vertical movement of the bars/cables is limited and longitudinal movement of the bars/cables is allowed, and wherein the fastener can be opened and closed without damaging the fastener; and an I-beam shaped spike extending downward from the strap-shaped locking cradle through the centered opening to at least one inch below the based member, wherein the spike has one or more break point notches between the strap-shaped locking cradle and the centered opening that allow the spike to be broken off at or above the base member. - View Dependent Claims (18)
- bars/cables”
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19. A concrete structure comprising:
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a lattice of reinforcement bars or post-tension cables (“
bars/cables”
);a set of chairs supporting the lattice of bars/cables, wherein each chair comprises a base member having a centered opening, a pair of opposing first leg members extending upward from the base member at a first angle, a pair of opposing second leg members extending upward from the base member at a second angle, and a strap-shaped locking cradle comprising an arc-shaped receiving portion attached to the first and second leg members, a flexible portion suitable for wrapping over the bars/cables and a fastener to affix the flexible portion to the arc-shaped receiving portion or one of the first leg members such that transverse and vertical movement of the bars/cables is limited and longitudinal movement of the bars/cables is allowed; concrete substantially encapsulating the lattice of bars/cables and the set of chairs, and a spike extending downward from the strap-shaped locking cradle through the centered opening.
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Specification