Tandem cone bolt anchor mounting assembly

An apparatus for anchoring first and second push/pull door handles to opposing stiles of a door, comprising:

• (1) an anchor bolt, said anchor bolt comprising:
• a shaft, including a head at one end of said
• shaft and a threaded shank at the other end;
• a first frustoconic annular ring, coaxially disposed on said shaft proximate to said head of said shaft;
• and
• a second frustoconic annular ring, coaxially disposed on said shaft in spaced apart relation to said first frustoconic annular ring;
• said first and second frustoconic annular rings being aligned with their larger bases facing said head of said shaft;
• an annular collar axially disposed on said shaft between said second frustoconic annular ring and said threaded shank,
• said shank of said anchor bolt being inserted through the door with said threaded shank projected from the first door stile surface, and said collar bearing against the second door stile surface with said shaft above said collar comprising said head and said frustoconic annular rings projecting a distance from the second door stile surface in a substantially perpendicular manner;
• (2) a first door handle having a threaded bore therein, wherein said threaded bore matingly receives said threaded shank of said anchor bolt to secure said first door handle against the first door stile surface;
• (3) a second door handle having a bore therein, said shaft of said anchor bolt comprising said head and said frustoconic annular rings being received within said bore;
• and
• (4) tightening means associated with said second door handle for transversely bearing against the conical surfaces of said frustoconic annular rings such that the conical surfaces of said frustoconic annular rings translate the transverse force exerted by said tightening means into a longitudinal force urging said second door handle toward and against the second door stile surface;

A device for securing a workpiece to a mounting surface, comprising:

• an elongate member;
• means defining a pair of axially spaced-apart surfaces extending from said elongate member in acute angular relation to the longitudinal axis thereof;
• means selectively operative for securing said elongate member to the mounting surface to project therefrom in a substantially perpendicular manner, whereby said elongate member is received within a bore of the workpiece;
• and
• mating members on the workpiece selectively bearing against said pair of axially spaced-apart surfaces in an angular direction,
• whereby the workpiece is urged toward and against the mounting surface to secure the workpiece to the mounting surface, and
• whereby the moment created by a pushing or pulling force exerted on said workpiece about the point at which one of said mating members bears against the first angular surface is substantially offset by the moment created about the point at which another of said mating members bears against the second angular surface.

A device for securing a first workpiece and a second workpiece to opposing first and second faces of a mounting piece, wherein the mounting piece comprises a bore through both faces thereof, said securing device comprising:

• an elongate member comprising a head, a tip, and a shank, said elongate member being selectably insertable into the bore through the first face of the mounting piece whereby said tip of said elongate member extends through the mounting piece to project from the second face and said head of said elongate member projects from the first face;
• means disposed along said shank of said elongate member projecting from the first face of the mounting piece defining a pair of axially spaced-apart surfaces extending from said shank of said elongate member in acute angular relation to the longitudinal axis thereof;
• and
• means disposed at said tip of said elongate member selectively operative to secure said elongate member to the second workpiece and effective to dispose the opposite end of said elongate member to project from the first face of the mounting piece in a substantially perpendicular manner, whereby said opposite end of said elongate member is received within a bore of the first workpiece, and
• mating members on the first workpiece selectively bearing against said pair of axially spaced-apart surfaces in an angular direction, whereby the first workpiece is urged toward and against the mounting surface to secure the workpiece to the first face of the mounting piece;
• wherein the moment created by a pushing or pulling force exerted on said workpieces about the point at which one of said mating members bears against the first angular surface is substantially offset by the moment created about the point at which another of said mating members bears against the second angular surface.