Patent ID: 11927013
Assignee: T. J. HARRIS COMPANY
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. An apparatus for supporting reinforcement bars in a concrete structure, the apparatus comprising:
a base member having an upper surface;
a pair of opposing first leg members extending upward from the upper surface of the base member;
a pair of opposing second leg members extending upward from the upper surface of the base member, the second leg members alternatingly disposed between the first leg members;
a ridge extending upward from the upper surface of the base member and disposed between an adjacent first leg member and an adjacent second leg member, the ridge comprising a top edge having:
a central portion;
first portion sloping downward from the central portion at an angle relative to the upper surface of the base member and extending toward the adjacent first leg member; and
a second portion sloping downward at an angle relative to the upper surface of the base member and extending toward the adjacent second leg member, the second portion disposed at an angle to the first portion;

an upper cradle attached to the first leg members for receiving an upper reinforcement bar, the upper cradle comprising:
a first upper bar-support member having a pair of opposing first upper sidewalls separated by an upper channel; and
a second upper bar-support member having a pair of opposing second upper sidewalls separated by the upper channel; and

a lower cradle attached to the second leg members for receiving a lower reinforcement bar, the lower cradle comprising:
a first lower bar-support member having a pair of opposing first lower sidewalls separated by a lower channel, one of the first lower sidewalls attached to an adjacent one of the first upper sidewalls, and another of the first lower sidewalls attached to an adjacent one of the second upper sidewalls; and
a second lower bar-support member having a pair of opposing second lower sidewalls separated by the lower channel, one of the second lower sidewalls attached to an adjacent one of the first upper sidewalls, and another of the second lower sidewalls attached to an adjacent one of the second upper sidewalls.