Barrier module lifting clamp

Details Barrier module lifting clamp Barrier module lifting clamp

1994-06-10

1995-04-04

Neuder, William P.

Road structure, process, or apparatus

Traffic steering device or barrier

294 90, E01F 1300

Patent

active

054031141

ABSTRACT:
Concrete barrier modules of the type having a T-shaped upper section are loaded and positioned without damage through use of a clamp device having a pair of jaw members hinged from a horizontal plate. Each jaw member has an inwardly directed lifting surface arranged to press upon an under surface of the module upper section. A hoist bar interacts with a latch to secure the jaw members either in an open or a closed position so long as a lifting force is applied to the hoist bar.

REFERENCES:
patent: 2920917 (1960-01-01), Sheehan
patent: 3044819 (1962-07-01), Pielle
patent: 3210113 (1965-10-01), Tantlinger
patent: 4093296 (1978-06-01), Itoh
patent: 4500225 (1985-02-01), Quittner
patent: 4806044 (1989-02-01), Ducketz
patent: 5088874 (1992-02-01), Quittner
patent: 5171053 (1992-12-01), Rouleau
patent: 5246305 (1993-09-01), Peek
patent: 5252951 (1993-10-01), Peek

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