Retractable door stop security device/utility box

Details Retractable door stop security device/utility box Retractable door stop security device/utility box

1996-04-18

1998-07-07

Lindsey, Rodney M.

Closure fasteners

Bolts

Swinging

292DIG15, 292342, E05C 312

Patent

active

057757461

ABSTRACT:
A retractable flush-mounted apparatus which is mounted in a floor or other flat mounting surface. The apparatus includes a housing with a flange plate which is mounted in an opening in the mounting surface. A retractable member is provided within the housing which alternates between a raise position and a lower position. By pressing downwardly on the top of the retractable member, a latching mechanism is released, allowing the spring biased retractable member to move to the raised position. The retractable member is lowered by applying a force sufficient to counteract the action of the spring and move the member into the housing, whereupon the latch mechanism re-engages the retractable member to retain it in the lower position. The apparatus can be adapted for use as a security door stop or as a pop-up utility outlet. When used as a security door stop, the risk of accidental lock-out is reduced through the use of a ratchet plate and camming surface.

REFERENCES:
patent: 110985 (1871-01-01), Lugrin
patent: 1297189 (1919-03-01), Lawler
patent: 1895146 (1933-01-01), Brown
patent: 3656787 (1972-04-01), Coopersmith
patent: 3805322 (1974-04-01), Serrano
patent: 3833963 (1974-09-01), Waters
patent: 3989286 (1976-11-01), Cleff
patent: 4462623 (1984-07-01), Grant
patent: 4501444 (1985-02-01), Dominquez
patent: 4601502 (1986-07-01), Van Dyke
patent: 4601504 (1986-07-01), Wolf
patent: 4797970 (1989-01-01), Charlton

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