Abstract: A gun assembly comprising a cylindrical gun action mated within a generally semi-cylindrical cavity of a synthetic gunstock to thereby define a specialized interference fit between the gunstock and the gun action is disclosed herein. The innovative gun assembly comprises at least three zones of interference fit established by assembling together a synthetic gunstock that includes a specialized receiving cavity generally in the form of a semi-cylinder and defined by a first radius R1 (correspond to zone surfaces) and a second radius R2 (corresponds to relief surfaces); and a metallic gun action generally in the form of a cylinder defined by a third radius R3. In order to achieve the specialized interference fit, the length of the third radius is selected to be slightly greater than the length of the first radius.

Abstract: A gun assembly comprising a cylindrical gun action mated within a generally semi-cylindrical cavity of a synthetic gunstock to thereby define a specialized interference fit between the gunstock and the gun action is disclosed herein. The innovative gun assembly comprises at least three zones of interference fit established by assembling together a synthetic gunstock that includes a specialized receiving cavity generally in the form of a semi-cylinder and defined by a first radius R1 (correspond to zone surfaces) and a second radius R2 (corresponds to relief surfaces); and a metallic gun action generally in the form of a cylinder defined by a third radius R3. In order to achieve the specialized interference fit, the length of the third radius is selected to be slightly greater than the length of the first radius.

Abstract: The invention disclosed herein relates to hollow fiber reinforced composite material parts having one or more selectively positioned core, structural insert, or veneer pieces integrally associated therewith.

Abstract: A mounting for cutter wheels on rotary rock drill bits includes a spindle with two annular axial load bearing surfaces, one of which interfaces in a rotational relationship with a cylindrical segmented bushing affixed to the inside surface of a cavity in the cutter wheel and the other of which interfaces through a top hat bushing flange in a rotational relationship with an annular end bearing surface in the cavity of the cutting wheel. A compressive silver coating on the cylindrical bushing before it is split, leaving uncoated edges for precise registration and bit onto a cylindrical race surface machined into the spindle, provides lubrication in addition to compressing under load to distribute axial loading forces from the cutter wheel in proportion to the two axial load bearing surfaces on the spindle.