Class 451/462 - Internal

Subclass of Class 451 - Abrading
Definition: Combined tool for grinding the interior of a hollow workpiece.
No. of patents: 21
Last issue date: 04/22/2008

Number	Title	Issue Date
7361079	Pipe deburring tool A pipe deburring tool (1) comprises a deburring means (2) arranged to deburr the inside surface of a pipe and a cleaning means (3) arranged to simultaneously prepare the outside surface of the pipe upon relative rotation of the tool and pipe. Th...	04/22/2008
7360271	Apparatus for cleaning a machine tool An apparatus and a method for dislodging contaminants from a surface of a machine tool. A machine tool has a spindle and a housing disposed around the spindle. The apparatus includes a support plate, an arbor, and a cleaning member. The arbor is disposed on the supp...	04/22/2008
7263737	Pipe cleaner A tool for simultaneously cleaning inside and outside surfaces surrounding an open end portion of a pipe includes a cleaning arm and a pipe-supporting arm mounted in a head for adjustment of the transverse spacing therebetween. Support portions on the cleaning arm h...	09/04/2007
7201886	Single crystal diamond tool Synthetic monocrystalline diamond compositions having one or more monocrystalline diamond layers formed by chemical vapor deposition, the layers including one or more layers having an increased concentration of one or more impurities (such as boron and/or isotopes o...	04/10/2007
7074116	Honing and deburring tool A combination tool for machining a bore has a tool shaft transmitting a rotational movement and an oscillating movement in an axial direction of a bore to be machined with the tool. A horning tool is arranged on the tool shaft, and a deburring tool is arranged on th...	07/11/2006
6964077	Pipe cleaning and deburring tool A plastic housing has a front shell with inwardly protruding bristles of an exterior wire brush, and a rear shell which retractably receives the outwardly protruding bristles of an interior wire brush. The interior brush is mounted to a shaft which engages the housi...	11/15/2005
6887144	Surface impurity-enriched diamond and method of making An element-doped diamond crystal is disclosed herein. The crystal includes at least one dopant element which has a greater concentration toward or near an outermost surface of the crystal than in the center of the crystal. The concentration of the dopant element is ...	05/03/2005
6855045	Tube surface cleaning device A tube cleaning device having a pair of jaws pivotally mounted on a frame and having opposed abrading surfaces defining an abrasion cavity, a mandrel fixed to the frame and extending axially thru the cavity for slidably receiving a tube end to be cleaned, spring str...	02/15/2005
6783449	Grinding tool The present invention enables continuous working including working inner diameters with high efficiency. Working members 30, 40 are installed to be able to be attached to and removed from a front end of the tool main body 10 configured with a grinding ...	08/31/2004
6065173	Cleaning device for copper tubing and copper fittings A cleaning device (10) for copper tubing (12) and copper fittings (14) comprising an outside diameter brush assembly (16) to clean an outer surface of an end of a piece of copper tubing (12) and an inside diameter brush assembly (18) to clean an inner sur...	05/23/2000
5961382	Pipe beveler A new PIPE BEVELER for ATTACHING TO A ROTARY SAW FOR PRODUCING THIRTY DEGREE BEVELS ON PIPES. The inventive device includes a coupling plate adapted for coupling with respect to a rotary saw. A receiving collar having a generally frustoconical configurati...	10/05/1999
5899795	Multi-function pipeline weld removal apparatus A pipeline and tubular structure renovation apparatus facilitates rapid and economical removal of protrusions into the interior of pipelines and other tubular structures, particularly gas pipelines having excess weld or devices such as nipples, etc. The a...	05/04/1999
5564968	Anti-chattering honing tool with selectable stones A honing tool comprises an hexagonally shaped mandrel having a cylindrical bore extending centrally therethrough. Six similar tool holders are each provided with a pair of spaced cylindrical gear racks having rack gear teeth formed thereon and integrally ...	10/15/1996
5245795	Pipe support apparatus Spaced, parallel mounting plates include a first clamp rod orthogonally directed through a lower end of the clamp plates, with a guide pipe orthogonally directed through the mounting plates spaced from the first clamp rod. A second clamp rod is orthogonal...	09/21/1993
5168660	Tubing abrasive cleaning device The present invention relates to an abrasive cleaning device for tubing useful for brushing and reaming, which comprises: (a) an axial shaft adapted to be attached to a power tool chuck and having a central longitudinal axis; (b) a generally flat rear wal...	12/08/1992
5133154	Apparatus and fixture for use in grinding the needle tip and the needle seat in a fuel valve An apparatus for use in grinding the needle tip and seat in the needle housing of a fuel valve includes a grinding pin (1) and a holder (4) for the grinding pin. The holder (4) is shaped and dimensioned to be guidingly received within the needle bore (45)...	07/28/1992
5058327	Tubing and fitting stripper A tubing and fitting stripper is provided and consists of a T shaped housing carrying three different sized wire bristle sleeves in each leg so that an end of a copper tubing of a matching size to one of the wire bristles sleeves can fit therein allowing ...	10/22/1991
5038525	Pipe polishing apparatus and method A pipe end polishing apparatus and method which comprises a cradle having an open section and a pair of pivotable doors covering the open sections and adapted to move between an open, pipe receiving position and a closed, pipe polishing position, the door...	08/13/1991
4693496	Elastomeric coating removal process A process and procedure for removing elastomeric and other coatings, that are used to conceal indicia on contest cards, chance tickets, game cards, lottery tickets, etc. This process consists of placing any abraded edge or spot on a portion of the contest...	09/15/1987
4497138	Apparatus for simultaneously grinding inner and outer workpiece surfaces A grinding apparatus comprises a base, a chuck on the base for supporting a workpiece for rotation about an axis, a first on the base to one axial side of the chuck for grinding an internal surface of the workpiece in the chuck, a second grinder on the ba...	02/05/1985
4434588	Honing head for high-speed operation A honing head comprises a holder having a plurality of radial guide slots angularly spaced from each other and an axial hole, a rough-finishing cone shaft and a finishing cone shaft or a single cone shaft axially slidably received in the hole, and a plura...	03/06/1984

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Class 451/462 - Internal