Marker post

Details Marker post Marker post

1992-03-17

1993-05-04

Yasich, Daniel M.

Signals and indicators

Indicators

By location

52103, 116 63R, 248156, 404 10, E01F 900, G09F 722

Patent

active

052071758

ABSTRACT:
A marker post and the like comprises a base to be placed on or in the ground. A threaded hole or other fastening mechanism is located at the top of the base. A post is attached to the base by a spring. At the other end of the spring is a screw or other fastening mechanism which will operate with the fastening mechanism at the top of the base. When impacted by an external force, the marker post flexes.

REFERENCES:
patent: 2949324 (1960-08-01), Birge et al.
patent: 2969484 (1961-01-01), Suckow
patent: 3279133 (1966-10-01), DeKorte
patent: 3371647 (1968-03-01), Shopbell
patent: 4106879 (1978-08-01), Diedershagen et al.
patent: 4161723 (1979-07-01), DeVittori
patent: 4373464 (1983-02-01), Blau
patent: 4862823 (1989-09-01), Hughes

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