Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Closure checks – Spring
Patent
1975-09-19
1976-11-30
Schroeder, Werner H.
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Closure checks
Spring
24102SL, 24214, 248203, 403 9, E05F 502, E05F 506
Patent
active
039940438
ABSTRACT:
A door bumper having no visible screws for mounting on a wall for contact with a door knob when the door is opened. A rubber bumper is carried on a housing which is non-detachably secured to the wall by a backplate. The backplate has a flattened V shaped spring with two radially outwardly extending ends which engage a circular notch extending around the inner periphery of the housing.
REFERENCES:
patent: 1338883 (1920-05-01), Tarkington
patent: 1379192 (1921-05-01), Lartev
patent: 3050770 (1962-08-01), Morse et al.
patent: 3362040 (1968-01-01), Gurzenda
patent: 3484891 (1969-12-01), Borgen
Berman Conrad L.
Rockwood Manufacturing Company
Schroeder Werner H.
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