Lock cylinder maintenance tool
OwnerMartin Neumaninventor
Life of this patent
Estimating the term…
Abstract
A tool for effecting inspection, maintenance and/or replacement of pins within a lock cylinder. The inventive device includes a cylindrical portion having an outside diameter corresponding to a diameter of a plug being removed from a lock cylinder. A non-cylindrical portion colinearly extends from the cylindrical portion and includes a reducing exterior wall characterized by a decreasing radius from a longitudinal center of the tool. The non-cylindrical portion permits a desired number of pins to be lowered from the lock cylinder at a desired speed for inspection, maintenance and/or removal thereof.
Claims5
A lock cylinder maintenance tool comprising:
- a non-cylindrical portion including a reducing exterior side wall;
- said non-cylindrical portion having a centerline,
- said reducing exterior side wall comprising a longitudinal side wall, an exterior semi-cylindrical side wall, a curvilinear side wall, an interior semi-cylindrical side wall, and a resting wall;
- said exterior semi-cylindrical side wall continuing from said longitudinal wall,
- said exterior semi-cylindrical side wall having a constant radius of curvature from said centerline,
- said exterior semi-cylindrical side wall continuing into said curvilinear side wall,
- said curvilinear side wall characterized as having a decreasing radius of curvature from said centerline,
- said curvilinear side wall continuing into said interior semi-cylindrical side wall,
- said interior semi-cylindrical side wall having a constant radius of curvature from said centerline substantially less than the radius of curvature of the exterior semi-cylindrical side wall,
- said interior semi-cylindrical side wall continuing into said resting wall,
- said resting wall being of substantially planar configuration and orthogonally intersecting said longitudinal wall.
A lock cylinder maintenance tool comprising:
- a cylindrical portion having a centerline,
- a non-cylindrical portion secured to said cylindrical portion so as to project therefrom in a collinear orientation,
- said non-cylindrical portion including an exterior curvilinear side wall characterized as having a decreasing radius of curvature from said centerline and a longitudinal wall defined along said non-cylindrical portion so as to define a transverse wall at a juncture of the cylindrical portion and the non-cylindrical portion.
Dependencies are inferred from the claim text.