Floor-mounted positive doorstop

Details Floor-mounted positive doorstop Floor-mounted positive doorstop

1990-11-08

1992-06-09

Spruill, Robert L.

Closure fasteners

Bolts

Sliding and rotary

292DIG15, 16 82, E05C 502, E05F 506

Patent

active

051200937

ABSTRACT:
A floor-mounted doorstop comprises a tubular housing having an upper flange which is affixed to the floor, and a closed lower end. A plunger is telescopically received within the bore of the housing, compressing a coil spring which normally drives it to its deployed position; however, the plunger can be depressed with the foot, and a twist of the foot latches it in a retracted position.

REFERENCES:
patent: 760528 (1904-05-01), Davies
patent: 776178 (1904-11-01), Guedeney et al.
patent: 1271363 (1918-07-01), Ralston
patent: 1895146 (1933-01-01), Brown
patent: 2929647 (1960-03-01), Gladstone
patent: 4462623 (1984-07-01), Grant
patent: 4797970 (1989-01-01), Charlton

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