Handling: hand and hoist-line implements – Grapple – Lewises
Patent
1975-06-09
1977-04-19
Cherry, Johnny D.
Handling: hand and hoist-line implements
Grapple
Lewises
52707, 52711, B66C 166, E04C 500
Patent
active
040184706
ABSTRACT:
An improved anchor insert adapted to be embedded in a concrete slab for cooperation with a pick-up unit which includes a locking stem having a pair of lift shoulders extending from opposite sides of the stem, comprises a concrete-excluding cage having a hollow body and a base closing the lower end of the body, a first pair of spaced apart anchor rod sections intersecting the body for the application of a lifting force thereto by the lift shoulders inserted in the cage, a second pair of spaced apart anchor rod sections extending transversely of the first pair of anchor rod sections and fixedly secured thereto on opposite sides of the cage body, a pair of foot members disposed beneath each anchor rod section of the second pair, the anchor rod sections of the second pair being seated thereon, the foot members in each pair being disposed on opposite sides of the cage and spaced outwardly therefrom, and the foot members being adapted to seat on the floor of a slab form to space the anchor rod sections of both pairs inwardly from the adjacent external surface of a formed slab, and strut means extending outwardly from the base to each of the foot members and fixedly connecting the foot members to the base.
REFERENCES:
patent: 2794336 (1957-06-01), Ballou
patent: 3216171 (1965-11-01), Jenkins
patent: 3289379 (1966-12-01), Watts
patent: 3431012 (1969-03-01), Courtois et al.
patent: 3712014 (1973-01-01), Waerner
patent: 3873147 (1975-03-01), Annable et al.
Cherry Johnny D.
Gerlach Norman H.
Superior Concrete Accessories, Inc.
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