Patent ID: 11920310
Assignee: AMERISTAR PERIMETER SECURITY USA INC.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. A bollard assembly, comprising:
a foundation having a socket, the socket comprising:
a hollow shell supported by a base;
a core supported by the base and coaxially disposed within the shell, the core having an upper surface spaced above the base; and
an annular recess coaxially disposed between the shell and the core;

a bollard, comprising:
a body having opposed upper and lower ends and a body axis, the lower end of the body receivable within the recess and engagable with the base; and
a lift assembly engagable with the upper surface of the core and having a less extended state configured to urge increased axial separation between the body and the core, and a more extended state; and

a locking system having a locked state, in which the lift assembly is restrained in a less extended state, and an unlocked state in which the less extended lift assembly is released from restraint.