Carl D Strom, Age 4220422 Callon Dr, Topanga, CA 90290

7819613, Oct 26, 2010

Oct 31, 2007

11/982067

Carl Strom - Topanga CA, US

F16B 37/12
F16B 25/00

411178, 411386

A self-tapping insert is installed in a pre-existing bore hole in a workpiece by rotating the insert, causing cutting threads on the exterior of the self-tapping insert to cut new threads. Engagement threads on the exterior of the self-tapping insert engage the new threads to retain the self-tapping insert within the workpiece. The self-tapping insert may comprise internal threads which are used to replaced damaged threads in the workpiece. The exterior threads of the self-tapping insert may be configured as left-handed threads, while the internal threads are right-handed threads. The top of the self-tapping insert may comprise a plurality of castellations, and a drive head having matching castellations may be employed to install the self-tapping insert, eliminating the need for installing the insert with a drive bolt. The exterior of the self-tapping insert may further comprise a leading edge for cutting the new threads, where the leading edge has greater radial extension than the trailing edge. This feature provides greater chip relief, thereby reducing the torque required to install the self-tapping insert.

8052360, Nov 8, 2011

Sep 8, 2010

12/877975

Carl Strom - Topanga CA, US

B23G 5/06

408222, 408 1 R

A self-aligning tap is used to produce correctly aligned new threads in an existing smooth bore hole. The design of the tap's shank, flutes, and cutting surfaces is that of commonly used existing taps. The flat end of the tap—the end that enters the existing bore hole—contains a threaded bore. A removable pilot that aligns the tap to the axis of the existing bore consists of a cylindrical body with a diameter slightly smaller than the existing bore hole, and a length no greater than the diameter of the major diameter of the tap. The upper end of the cylindrical pilot—the end that shoulders against the tap—comprises a threaded stem whose thread pitch matches that of the tap end's bore, and whose length is slightly less than the tap end bore's depth. Once the cylindrical pilot's stem is threaded into the tap end's bore and the resulting assembly is placed into the existing bore hole, it serves to align the tap so that its cutting teeth produce pilot threads which are accurately aligned to the existing bore hole's axis. Once the pilot threads have been produced by rotation of the tap, the tap may be removed from the existing bore hole, the pilot detached by unscrewing it, and the tap reinserted into the newly formed pilot threads.

8439617, May 14, 2013

Sep 8, 2010

12/877967

Carl Strom - Topanga CA, US

F16B 25/00

411386, 411417

A self-tapping insert is installed in a pre-existing bore hole in a workpiece by rotating the insert, causing cutting threads on the exterior of the self-tapping insert to cut new threads. Engagement threads on the exterior of the self-tapping insert engage the new threads to retain the self-tapping insert within the workpiece. The self-tapping insert may comprise internal threads which are used to replace damaged threads in the workpiece. The means of installing the self-tapping insert may include a drive bolt having threads which make up into those of the self-tapping insert's internal threads. The self-tapping insert is aligned within the bore hole by means of a detachable pilot, which is connected to the insert with attachment means. The attachment means include the pilot being attached to the drive bolt. The pilot may be attached to the drive bolt means of left-handed threads in an axially-centered aperture of the pilot and matching left-handed threads on the end of the drive bolt.

2010032, Dec 30, 2010

Sep 8, 2010

12/877980

Carl Strom - Topanga CA, US

F16B 39/28

411172

A self-tapping insert is installed in a pre-existing bore hole in a workpiece by rotating the insert, causing cutting threads on the exterior of the self-tapping insert to cut new threads. Engagement threads on the exterior of the self-tapping insert engage the new threads to retain the self-tapping insert within the workpiece. The self-tapping insert may comprise internal threads which are used to replace damaged threads in the workpiece. The exterior threads of the self-tapping insert may be configured as left-handed threads, while the internal threads are right-handed threads. The top of the self-tapping insert may comprise a recessed hexagon configuration, and a drive device having substantially the same configuration may be employed to install the self-tapping insert, eliminating the need for a drive-bolt or special tooling, and allowing the counter-clockwise installation of the self-tapping insert. The exterior of the self-tapping insert may further comprise an integral pilot for aligning the insert straight with the axis of the bore, as well as a leading edge for cutting the new threads, which edge has a radial extension equal to or greater than the trailing edge.

2010032, Dec 30, 2010

Sep 14, 2010

12/882137

Carl Strom - Topanga CA, US

F16B 25/10

4113874

A self-tapping insert is installed in a pre-existing bore hole in a workpiece by rotating the insert, causing cutting threads on the exterior of the self-tapping insert to cut new threads. Engagement threads on the exterior of the self-tapping insert engage the new threads to retain the self-tapping insert within the workpiece. The self-tapping insert may comprise internal threads which are used to replaced damaged threads in the workpiece. The exterior threads of the self-tapping insert may be configured as left-handed threads, while the internal threads are right-handed threads. The top of the self-tapping insert may comprise an integral hexagonal shape, and a drive socket of corresponding size and shape may be employed to install the self-tapping insert, eliminating the need for installing the insert with a drive bolt, and permitting the left-handed rotation of the self-tapping inserts external threads.