Class 29/402.17 - Screw threaded preform

Subclass of Class 29 - Metal working
Definition: Process of repairing wherein the repair preform has a helically
No. of patents: 35
Last issue date: 01/08/2008

Number	Title	Issue Date
7316686	Devices and methods for implanting fusion cages Methods and instrumentation for spinal interbody fusion are disclosed. The instruments and methods are particularly adapted for interbody fusion in an unreamed disc space. One instrument is a distractor assembly including a first distractor and a second distractor c...	01/08/2008
6725518	Casting repair method A method and apparatus for repairing a casting in a cold metal repair process includes a plurality of drilling fixtures which facilitate the creation of one or more lock receiving recesses positioned generally transverse to the casting crack. The lock receiving rece...	04/27/2004
6668784	Threaded insert for tapered seat spark plug bores, installation tools, and method of installation A thread insert and method to replace the damaged threads and tapered seat in a spark plug bore of an internal combustion engine allows for the continued use of the original factory specified spark plugs where the original threads in the spark plug bore h...	12/30/2003
6516865	Hollow-cast component In a hollow-cast component, a core opening (13) created during manufacturing is closed with a closure piece (14). This closure piece is located inside a recess (15) in the component, whereby the recess is arranged so that it is imbedded completely in the ...	02/11/2003
6474285	Method of repairing a damaged spark plug hole An inexpensive method for repairing a damaged spark plug hole of a cylinder engine includes drilling the damaged spark plug hole using a drill bit, tapping the drilled spark plug hole, threading a steel insert into the threaded hole and making a spark plu...	11/05/2002
6435788	Thread repair insert An insert for thread repair having an interior thread and a specially formed exterior thread which both precludes upheaval between sides of the cracked material on opposite sides of the crack and draws the crack together, radially inward towards the cente...	08/20/2002
6212750	Method of repairing cracks A method and apparatus for repairing a casting in a cold metal repair process includes a plurality of drilling fixtures which facilitate the creation of one or more lock receiving recesses positioned generally transverse to the casting crack. The lock rec...	04/10/2001
5781995	Method of repairing a defective portion in a fluid carrying tube A method of repairing a defective portion of a tube which is one of a plurality of generally parallel elongated tubes includes severing an axial portion of the tube which contains a defective portion, bending the free end portions of the tube disposed adj...	07/21/1998
5767472	Method of repairing a spent electrode for plasma arc torch A method of repairing a spent electrode for a plasma arc torch. The method includes removing an end piece of the spent electrode thereby leaving an electrode base. A blind bore is drilled into the end face of the electrode base. Internal female threads ar...	06/16/1998
5586379	Stabilizing of CAM in automated beverage filling machinery A modified beverage fill valve cam assembly and related methods are disclosed, which provide for a quick, inexpensive, and effective solution to fill valve cam rotational eccentricity. A supplemental support is provided for the camming end of the cam whic...	12/24/1996
5553367	Method for repairing a machine having a support structure and worn components The disclosure involves a structural combination and a method for attaching a machine component such as a number of arc-shaped gear segments to a supporting segment mounting pad. As new, each gear segment is furnished with a number of openings, all of the...	09/10/1996
5511299	Gear box valve housing repair In many complicated castings, such as those utilized to define a gear box for an aircraft jet engine, valve housings or mounting recesses may be integrally formed in the casting. Such housings incorporate a plurality of sealing surfaces which cooperate wi...	04/30/1996
5499892	Apparatus for repairing cracks A pin is provided for repairing cracks in a material such as iron casting materials. The pin includes threads with both upper surfaces and lower surfaces which angle upwards toward a head of the pin. A tapping bit is utilized in a hole of similar diameter...	03/19/1996
5417532	Casting repair apparatus and method A method and apparatus for repairing a casting in a cold metal repair process includes a plurality of drilling fixtures which facilitate the creation of one or more lock receiving recesses positioned generally transverse to the casting crack. The lock rec...	05/23/1995
5379505	Method for repairing cracks A pin is provided for repairing cracks in materials such as iron casting materials. The pin includes threads with both upper surfaces and lower surfaces which angle upwards toward a head of the pin. A tapping bit is utilized in a hole of similar diameter ...	01/10/1995
5341554	Method for repairing a cracked metal part using repair plugs coated with a surface layer of zinc An improvement to the method for repairing a cracked metal wall commonly known as cold welding, which is accomplished by inserting metal locks across a crack to join the metal on opposite sides of the gap, and then inserting repair plugs which act as plug...	08/30/1994
5255423	Process for installing a helical added thread in an internally threaded orifice for repairing the internal threads of the orifice To repair the internal thread (2b) of a large diameter orifice, an added thread is screwed into the orifice in a form wound on a threaded part of the surface of a drum screwed into an internally threaded centering ring engaged in the entry part (2a) of th...	10/26/1993
5107578	Method to repair a chair rung A novel chair rung repair kit and method to repair a broken chair rung is described. Normally, after a period of time, chair rungs tend to dry out, especially those made from wood. By drilling a small, tapered hole in the longitudinal end of the broken ru...	04/28/1992
5099565	Method of repair or replacement a hydrant casing A damaged hydrant casing which has an integral barrel extending below ground level is repaired without excavation. A support structure defining a horizontal work surface is clamped to the hydrant barrel. A powered groove-forming tool is supported from the...	03/31/1992
5065490	Threaded insert for repairing a nuclear assembly A bolt insert 24 with special bolt 50 provides a fastening method to secure hard metal nuclear reactor parts 12, 14, 16 provided with aligned square EDM produced openings 18, 20, 22. The insert is an elongated square internally threaded member with slots ...	11/19/1991
5027494	Method of adjustably applying tension to a garage door The present invention relates to a novel strut and bracket apparatus for mounting to a section of an overhead garage door, the strut and bracket combination being utilized to selectively impart the desired tensile forces to the section, thereby correcting...	07/02/1991
4845828	Method for repairing a metal casting having a crack or break therein A metal lock system is provided for securing a crack or break in a metal casting from further cracking, breaking, or leakage. The metal lock system includes a metal lock having parallel, flat top and bottom surfaces and a plurality of alternating large an...	07/11/1989
4805517	Gas return railway car hydraulic cushioning unit and method of converting a spring return unit A railway car hydraulic cushioning unit prevents the mixing of gas and hydraulic fluid in chambers interiorly and exteriorly of a high pressure cylinder unit by strategic placing of metering ports through the cylinder wall at positions below the level of ...	02/21/1989
4779316	Crankshaft and a process for balancing the same A crankshaft and counterweights are balanced by adding additional weight without modifying their outer dimensions. Bores are drilled into the counterweights and then a slug of material which is of a different density than the original counterweight materi...	10/25/1988
4675961	Replacement of split-pin assemblies in guide tubes The old split-pin assemblies of the lower guide tube of a nuclear reactor are replaced by new split-pin assemblies in a robotic work station under a pool of water. The work station includes a plurality of robotic tools which are remotely actuable from a r...	06/30/1987
4662806	Metal lock system and method Apparatus for repairing a casting having a crack therein comprising a metal lock to extend across the crack and a lacing plug to fit in the crack, the metal lock formed as a rigid elongate member having a plurality of lobes formed from adjacent portions t...	05/05/1987
4599781	Method of repairing cracked thin metal parts Thin metal parts such as one eighth inch or less cast iron or one quarter inch or less cast aluminum are repaired by drilling a series of overlapping holes extending generally perpendicular to the crack at each end of the crack and at spaced locations alo...	07/15/1986
4570322	Adapter for mounting an exhaust muffler to an internal combustion engine and method for installing same An adapter is disclosed for mounting an exhaust muffler onto a threaded exhaust port located at the external surface of an internal combustion engine. The adapter includes a hollow, cylindrical neck portion having screw threads formed on a first end there...	02/18/1986
4531759	Suspension strut for vehicles with onboard service of shock absorber cartridge Vehicle suspension strut having onboard service of shock absorber cartridge through access opening in the mount tower and through the upper mount while the road wheel remains on the support surface....	07/30/1985
4430787	Sucker rods with improved coupling capability and method A sucker rod having improved coupling capability for joining successive lengths of sucker rods in a string has a pin end coupler on one end and a box end coupler on the opposite end. The string is formed by inserting the pin end of one rod directly into t...	02/14/1984
4376332	Tool for repairing and replacing damaged studs A replacement stud for an original stud damaged in existing equipment consists of an oversized section having a threaded diameter larger than the original stud and a nominal section having a threaded diameter identical to that of the original stud. The no...	03/15/1983
4276971	Vehicle suspension strut with serviceable shock absorber A serviceable welded MacPherson type strut in which the upper end of the support tube can be circumferentially cut to facilitate removal of the shock absorber components mounted therein so that an empty support tube is provided. Subsequent to such removal...	07/07/1981
4229867	Method of repairing or modifying the firing deck of an internal combustion engine An internal combustion engine including a coolant jacketed body surrounding a combustion cylinder with a tubular wall extending through the coolant jacket and surrounding an ignition device exposed through a firing deck area to said cylinder, has a circul...	10/28/1980
4153983	Cylinder wall repair Cylinder wall repair wherein worn or damaged areas of the cylinder are restored. The cylinder housing is rebored and threaded or ground. An externally threaded or grooved sleeve member is then screwed or inserted into the cylinder housing. The internal co...	05/15/1979
4115911	Method of making retipped top-drive filling spindles A top-drive filling spindle for use in the manufacture of textile yarn is provided wherein the tapered tip thereof is of a through hardened steel material that would more readily resist wear caused by the driving action of the quill disposed thereon. A to...	09/26/1978

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Class 29/402.17 - Screw threaded preform