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US 3,994,043 AGranted
Door bumper
AssigneeRockwood Manufacturing Company
InventorWilliam V. Gurzenda
Life of this patent
Estimating the term…
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.
Claims8
A door bumper comprising:
- a. a housing means having a sidewall with a notch means on the interior thereof, an open back and a front opening smaller than the back opening;
- b. a resilient rubber bumper means mounted in said housing means and protruding from said front opening;
- c. backplate means for securing the housing to a wall and detachably mounted in the open back of the housing, said backplate means having a flat surface for mounting on the wall and lip means projecting from opposed portions at the edge of the backplate means and substantially perpendicular to the flat surface;
- and
- d. means for securing the housing to the backplate comprising outwardly biased spring means projecting radially outwardly from at least one portion of the lip means and engaging the notch means, the end portion of the spring means being rounded on its outward face and the inner periphery of the housing adjacent the notch means being chamfered to facilitate camming in of the spring when assemblying the housing to the backplate by forcing the housing means over the outward ends of the spring means.
2 more elements
Dependencies are inferred from the claim text.