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

Claim 15:
16. 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 each extending upwardly from the upper surface of the base member, each of the first leg members having a top portion and a first shoulder member extending horizontally from either side of the top portion of each of the first leg members;
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, each of the second leg members having a top portion and a second shoulder member extending horizontally from either side the top portion of each of the second leg members;
an upper cradle 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;
a second upper bar-support member having a pair of opposing second upper sidewalls separated by the upper channel; and
upper edge brace portions that connect the first and second upper sidewalls to the first shoulder members of the first leg members; 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;
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; and
lower edge brace portions that connect the first and second lower sidewalls to the second shoulder members of the second leg members.