Universal barrel key apparatus

A barrel key apparatus comprising:

• a handle section;
• a tubular section with an inner end attached to said handle section and terminating in an outer end, said tubular section being partially hollow with an access opening within the outer end thereof connecting with said hollow;
• a projection extending inwardly through one wall thickness of the outer hollow surface of said tubular section adapted for cooperation with a mating groove in a lock to establish the proper inserting position within the lock;
• said tubular section having a plurality of elongated grooves located upon the outer surface of said tubular section, each said groove beginning at said outer end and extending a predetermined distance towards said inner end terminating in a back end, an attaching opening provided within each said groove adjacent said back end;
• a plurality of elongated push pins of various lengths, each said push pin having mounted on one end thereof an attaching member, each said push pin having a body section having an upper surface and a lower surface, said lower surface to matingly cooperate within a said groove, said upper surface to be flush with the said outer surface of said tubular section, each said attaching member having securing means thereon, said attaching member to extend within an attaching opening and to be secured to said tubular section by said securing means;
• said tubular section being substantially cylindrical;
• said cylindrical tubular section having a longitudinal center axis, the longitudinal axis of said elongated grooves being parallel to said longitudinal center axis of said cylindrical tubular section;
• each of said elongated grooves being substantially identical in cross-section and equal in length;
• each of said grooves being of a constant cross-sectional configuration;
• the lower surface of each said push pin being arcuate and comprising a seqment of a circle, said upper surface being arcuate and comprising a segment of a circle, the radius of the contour of said lower surface being substantially less than the radius of the contour of said upper surface;
• each said securing means comprises a plurality of spaced apart annular ridges.

A barrel key apparatus comprising;

• a handle section;
• a tubular section with an inner end attached to said handle section and terminating in an outer end, said tubular section being partially hollow with an access opening within the outer end thereof connecting with said hollow;
• a projection extending inwardly through one wall thickness of the outer hollow surface of said tubular section adapted for cooperation with a mating groove in a lock to establish the proper inserting position within the lock;
• said tubular section having a plurality of elongated grooves located upon the outer surface of said tubular section, each said groove beginning at said outer end and extending a predetermined distance towards said inner end terminating in a back end, an attaching opening provided within each said groove adjacent said back end;
• a plurality of elongated push pins of various lengths, each said push pin having mounted on one end thereof an attaching member, each said push pin having a body section having an upper surface and a lower surface, said lower surface to matingly cooperate within a said groove, said upper surface to be flush with the said outer surface of said tubular section, each said attaching member having securing means thereon, said attaching member to extend within an attaching opening and to be secured to said tubular section by said securing means;
• each said securing means comprises a plurality of spaced apart annular ridges.