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| Number | Title | Issue Date |
| 7322783 | Self-drilling pull-through blind rivet and methods of and apparatus for the assembly and setting thereof A river body (40) is formed with cutting teeth (68) in a forward edge (66) of the rivet body. A mandrel (96) is formed at a forward end with an enlarged head (104) having a drill point (60) thereon. A plurality of the rivet ... | 01/29/2008 |
| 5281059 | Tool for repairing damaged threads in a blind hole An adjustably expandable fluted tap to reform damaged threads defined in a blind hole, such as a spark plug hole. The tool provides an elongate body with a first end defining an expandable fluted tap having a relaxed diameter smaller than but matingly sim... | 01/25/1994 |
| 5259706 | Thread repairing tools A threading tool for repairing, in situ, threads within a bore of a head of an internal combustion engine without the danger of particulate waste falling into the engine housing. The threading tool can be used separately or in combination with a reaming t... | 11/09/1993 |
| 5060330 | Screw-thread repair tool A chasing tool for repairing screw threads, which includes a substantially prismatic body with a bottom and a top surface, having on one end of the body a transverse, notch-like recess opening into the top surface and serving as a support for the threaded... | 10/29/1991 |
| 5022803 | Pin type carbon-carbon fastener A method for joining carbon-carbon structural elements together using a carbon-carbon pin type fastener for transfer of shear loads. A coating of powdered metal which undergoes a large expansion when reacted in the presence of a gas is used to coat the ou... | 06/11/1991 |
| 4942752 | Apparatus for reforming and restoring the surface of a cylindrical workpiece manually A handtool for restoring and reforming the surface of cylindrical workpieces.... | 07/24/1990 |
| 4889453 | Method of forming a tapped hole A tapped hole produced in a metallic material by threading a preselected standard threaded fastener into an untapped hole formed in the material. The diameter of the hole to be formed is determined by using a formula that takes into account the hardness a... | 12/26/1989 |
| 4630978 | Thread chasing tool A tool for cleaning or repairing the screw threads on studs, bolts and the like comprises inner and outer relatively slidable sleeve members and a series of die elements rockably mounted between the sleeve members adjacent one end or mouth of the tool so ... | 12/23/1986 |
| 4606681 | Tud rethreading and cleaning device A device for rethreading and cleaning threaded pipe studs having an elongated casing having an outside surface provided with flat portions for attaching to a torquing means, which casing is provided with a straight channel therethrough shaped to allow pas... | 08/19/1986 |
| 4589187 | Method of manufacturing an insulating coupling for drill collars An insulating coupling for drill collars and a method of manufacture thereof are presented wherein the coupling consists of an electrically insulating ceramic coating applied in thickness from 0.002 to 0.006 inch to the threads of the coupling by a detona... | 05/20/1986 |
| 4506432 | Method of connecting joints of drill pipe A method of connecting a joint of drill pipe for rotary earth drilling having tool joint members on each end with threaded connections for connecting the joint with other joints of drill pipe is shown. Nickel plating is applied to a portion of the threade... | 03/26/1985 |
| 4442561 | Slotted fastener A fastener including an enlarged head portion and a reduced diameter shank portion extending from one end of the head portion. A cam slot is formed in the end of the shank distal from the head portion. The cam slot has a spiral configuration and the entra... | 04/17/1984 |
| 4408363 | Thread conditioning device The thread conditioning device is for rotational movement about a threaded bolt to remove corrosion and debris and to otherwise condition the bolt threads for further use. The device or chaser includes a body having an opened and generally C-shaped config... | 10/11/1983 |
| 4264995 | Insulation support fixture and method of making the same The present invention is directed to a method of manufacturing a support fixture for securing thermal insulation, such as glass wool batts and the like, to air conduit ducts forming parts of heating and air conditioning systems. The device comprises a met... | 05/05/1981 |
| 4150450 | Thread reforming tool with lockable rotary jaw structure Apparatus for re-forming a helical screw thread includes a carrier; opposed jaws to be received in thread defined grooves at opposite sides of the body forming the thread; one jaw carried in fixed position by the carrier; a shaft mounting the other jaw an... | 04/24/1979 |
| 4093322 | Slide bearing for use in a combustion engine and engine equipped with such a bearing A slide bearing for a shaft absorbing a radial load on the shaft varying in direction, said bearing comprising two or more bearing bushings held in place by means of two bearing caps provided at their boundary surfaces with meshing teeth securing them aga... | 06/06/1978 |
| 4028762 | Method of threading short spool pieces A method of threading short spool pieces prepared from lined pipe and a novel device for maintaining the short spool centered in a conventional pipe threading machine is disclosed. The device enables a person skilled in the craft to cut and thread short p... | 06/14/1977 |
| 3956787 | Thread reconditioning tool A tool for reconditioning threads on vehicle lug studs. The tool is comprised of a hollow tube slidably receiving a collet chuck. The chuck is operatively connected to a handle that is in turn pivotably mounted to the tube. Pivotal movement of the handle ... | 05/18/1976 |
