Movable or removable closures – Check or key controlled
Patent
1994-10-03
1996-01-09
Green, Brian K.
Movable or removable closures
Check or key controlled
49 49, E05B 6500
Patent
active
054818281
ABSTRACT:
A security post for automobiles vertically disposed in the ground to allow or prevent access to a particular area. The post is manually withdrawn form the ground and secured in place with a securing bolt and lock. Guides on the post provide and easily slidable member within a sleeve that is disposed in the ground. A cover is provided for preventing the accumulation of dirt or other foreign particles on the top of the post and sleeve.
REFERENCES:
patent: 3660935 (1972-01-01), Boots
patent: 3688439 (1972-09-01), Doxsee
patent: 3698135 (1972-10-01), Boots et al.
patent: 4713910 (1987-12-01), Quante
patent: 4715742 (1987-12-01), Dickinson
patent: 5054237 (1991-10-01), Kapala et al.
patent: 5070646 (1991-12-01), Colombo
patent: 5192159 (1993-03-01), Higginson
patent: 5365694 (1994-11-01), Macaluso
Green Brian K.
Redman Jerry
LandOfFree
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