Vehicle barrier construction

Details Vehicle barrier construction Vehicle barrier construction

1984-07-03

1986-12-09

Leppink, James A.

Road structure, process, or apparatus

Traffic steering device or barrier

404 11, 49 33, E01F 1300

Patent

active

046277633

ABSTRACT:
A vehicle barrier including a housing located in a pit, a barrier pivotally mounted on the housing and having a roadway surface and a barrier surface, hydraulic motors for moving the barrier from a retracted position where said roadway surface lies substantially flush with the roadway to an extended position where the barrier surface obstructs a vehicle on the roadway, energy absorbing members in the barrier, a break-away member effectively located between the barrier and the housing for permitting the barrier to pivot beyond its normal extended position when subjected to a vehicular impact above a predetermined value to thereby lift a vehicle off of the ground and throw it upwardly, and self-aligning structure between the barrier and the housing for effecting engagement between the hydraulic motors and the barrier upon installing the barrier into the housing.

REFERENCES:
patent: 1692425 (1928-11-01), Strauss
patent: 1848517 (1932-03-01), Davison
patent: 1949295 (1934-02-01), Dean
patent: 2362912 (1944-11-01), Logan, Jr.
patent: 2741859 (1956-04-01), Castle
patent: 3137876 (1964-06-01), Loomis
patent: 3748782 (1973-07-01), Reynolds
patent: 4152871 (1979-05-01), Kardash, Jr.
patent: 4274172 (1981-06-01), Frankin
patent: 4354771 (1982-10-01), Dickinson
patent: 4407484 (1983-10-01), Meinzer
patent: 4490068 (1984-12-01), Dickinson
patent: 4574523 (1986-03-01), Nasatka

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