| Patent Number |
Title Of Patent |
Date Issued |
| D413906 |
Tube end machining tool |
September 14, 1999 |
|
| D407724 |
Tube squaring tool |
April 6, 1999 |
|
| D383960 |
Tube end squaring tool |
September 23, 1997 |
|
| D312953 |
Tube cutting tool |
December 18, 1990 |
|
| D309563 |
Tube cutter |
July 31, 1990 |
|
| D303487 |
Portable pipe end preparation tool with right angle feed control |
September 19, 1989 |
|
| D281249 |
Tube cutter |
November 5, 1985 |
|
| D278026 |
Portable pipe end preparation tool |
March 19, 1985 |
|
| D276882 |
Portable pipe end preparation tool with right angle feed control |
December 25, 1984 |
|
| D276881 |
Portable pipe end preparation tool with right angle feed control |
December 25, 1984 |
|
| D275761 |
Portable combined reaming and seat counterboring tool holder |
October 2, 1984 |
|
| D275759 |
Combined reaming and counterbore tool bit |
October 2, 1984 |
|
| D264678 |
Pipe end preparation tool |
June 1, 1982 |
|
| 7270505 |
Cutting and beveling tool |
September 18, 2007 |
| A cutting tool and mounting system includes a tool carrier arranged to be mounted onto a workpiece, a cutting tool assembly carried by the tool carrier, and a tracking assembly connected to the cutting tool assembly and positioned to follow the contour of an outer surface of the work |
| 7180028 |
Configurable dual process welding head and method |
February 20, 2007 |
| A welding head employs a carriage assembly for guiding the welding head along a track or guide. A torch assembly, mounted on the carriage assembly, is configurable for multiple welding processes. The torch assembly includes a torch block and a GTA filler wire guide mounted together o |
| 7170032 |
Process for welding |
January 30, 2007 |
| A welding process for non-stainless steel workpieces using GTAW equipment and hydrogen containing shield gas on a first root pass is improved by using a shield gas delivery system comprising hoses or conduits made of elastomeric material having a moisture permeability coefficient of less |
| 6966731 |
Cutting tool and track guidance system |
November 22, 2005 |
| A cutting tool and track system includes a multi-segment track assembly configured to be removably attached to a surface of a workpiece, a carriage assembly configured to ride along the track assembly, a carriage drive mechanism arranged to drive the carriage assembly along the track |
| 6794608 |
Welding current control system and method |
September 21, 2004 |
| A system and method for controlling a weld-current in an arc welding apparatus involves programming of a waveform generator to supply a control signal to a weld-current power supply, the control signal being derived from a reference waveform consisting of selected segments having fixed o |
| 6492618 |
Automatic weld head alignment and guidance system and method |
December 10, 2002 |
| A system for aligning and guiding a weld head or torch along a desired weld path includes a travel mechanism for moving a weld head assembly along a fixed path and a steering mechanism for moving a weld head or torch relative to the fixed path in order to follow a desired weld path. A |
| 6335511 |
Control method and apparatus for an arc welding system |
January 1, 2002 |
| An arc welding control method and apparatus includes a voltage control loop in which a pulsation parameter such as pulse width, pulse amplitude, background amplitude between pulses, or frequency, is adjusted to compensate for deviations in the arc voltage, and a second, slower feedba |
| 6309145 |
Portable machine tool for conditioning header tube openings for butt-welding tubes |
October 30, 2001 |
| A portable machine tool for removing stub ends of heat exchange tubes from a heat exchanger header or other plate structure and preparing the tube opening in the header for butt-welding a new tube at the opening. The tool includes a mandrel that may be locked within the tube opening and |
| 6202522 |
Portable pipe end preparation machine tool |
March 20, 2001 |
| A portable machine tool for preparing pipe or other annular workpiece ends for welding includes a central mandrel shaft, a cutting head rotatably mounted on the mandrel shaft and a rotary drive connector on the cutting head arranged to concentrically fit within an annular drive head of a |
| 6050161 |
Portable single-point beveling tool |
April 18, 2000 |
| A portable single-point beveling tool includes a tool housing, an associated tool drive mechanism and a base member which is rotatably supported on the housing for rotary motion about a rotation axis and arranged to be rotated by the tool drive mechanism. The base member has a portio |
| 6042309 |
Tool bit with undercut hook radius |
March 28, 2000 |
| A tool bit for a tube end squaring tool includes a cutting edge produced by machining or grinding a hook radius in the tool bit stock on the entrance angle side of the cutting edge and an undercut portion within the hook radius just rearwardly of the cutting edge on the work entrance sid |
| 6038947 |
Quick return feed for machine tool |
March 21, 2000 |
| A tool feed module for a portable lathe machine tool includes a tool block carrying a cutting tool driven by a feed screw incrementally advanced during a cutting procedure by an actuator arm contacting a striker device located on the tool housing. The actuator arm drives the feed screw |
| 5941145 |
Tube squaring tool |
August 24, 1999 |
| A tube squaring tool includes a housing having forward and rearward end areas and a tubular workpiece clamping device located at the forward end area for securing and retaining a tubular workpiece relative to the housing so that the end of the workpiece can be machined by a rotary cu |
| 5934688 |
Quick setting and release actuator for work holder |
August 10, 1999 |
| A quick setting and release actuator for cooperating with an axially movable chuck for holding a tubular workpiece in fixed position includes an anchor member (12) that is mounted in fixed relationship relative to a housing of a machine tool (20) and a thrust member (42) carried by a |
| 5868531 |
Tool bit with undercut hook radius |
February 9, 1999 |
| A tool bit for a tube end squaring tool includes a cutting edge produced by machining or grinding a hook radius in the tool bit stock on the entrance angle side of the cutting edge and an undercut portion within the hook radius just rearwardly of the cutting edge on the work entrance sid |
| 5826470 |
Cam operated quick return feed control for lathe machine tool |
October 27, 1998 |
| A feed control for a tool bit carried by a headstock of a lathe includes a driving cam having a profiled lobe that permits automatic quick return of the tool bit following each cutting operation. The cam is driven in a forward feed direction by a cam actuator arm carried by the headstock |
| 5743539 |
Quick setting and release actuator for work holder |
April 28, 1998 |
| A quick setting and release actuator for cooperating with an axially movable chuck for holding a tubular workpiece in fixed position includes an anchor member (12) that is mounted in fixed relationship relative to a housing of a machine tool (20) and a thrust member (42) carried by a |
| 5738268 |
Method for preparing tube weld sample for internal visual inspection |
April 14, 1998 |
| A process for preparing tubular coupons formed of a pair of tube lengths butt-welded together with a full depth circumferential weld includes partially diagonally cutting the coupon sample through its transverse dimension so as to leave a thin bending strip along one wall of the coupon |
| 5686002 |
Method of welding |
November 11, 1997 |
| A process for buttwelding metal workpieces having bevelled joint preparations using an automatic GTAW welder using filler wire includes preparing the bevelled workpiece with bevelled joint areas having minimal land thickness at the root extremities; placing the prepared workpiece joi |
| 5671646 |
Tube end squaring tool |
September 30, 1997 |
| A portable tool for use in axially cutting and squaring ends of tubes includes a main tool body within which is rotatably mounted a tool shaft having a cutting tool attached at one end thereof, a tube receiving and clamping unit for retaining an end portion of a tube to be worked upon, a |
| 5515756 |
Roller cutter module with force equalizer |
May 14, 1996 |
| A roller cutter module for use with a rotatable tool carrier head of a lathe machine tool includes multiple opposed cutter wheels for transversely cutting tubular workpieces, and wherein the wheels are rotatably mounted upon support arms that are pivotally attached to a support plate |
| 5429021 |
Elliptical manway cutter |
July 4, 1995 |
| A machine tool for resurfacing seats surrounding non-circular openings in members, such as elliptical manways, includes a housing adapted to be mounted in the opening, and a tool bit carried by a slide mechanism mounted on the housing for rotation about a central axis. The slide member |
| 5368399 |
Adjustable bearing assembly |
November 29, 1994 |
| An adjustable roller bearing assembly adapted for use in a machine tool includes an elongated support bolt that rotatably supports a radially extending roller bearing, and a bushing adapted to be positioned within a bore of a support member and to which the bolt member can be threadably |
| 5083484 |
Pipe end preparation tool having improved torque reacting and clamping capabilities |
January 28, 1992 |
| The present invention relates to a clamping device for clamping a mandrel to an elbow or pipe as well as to a torque-reacting device between a power unit housing and the mandrel. The torque reacting device has a pair of torque reacting keys mounted in a non-rotatable portion of the power |
| 4981055 |
Portable facing tool |
January 1, 1991 |
| A portable single point facing tool (10) includes a drive system (12,18), a rotating base member (14), a feed control mechanism (40) and a tilting cutting head (32) with a cutting tool (30). The tool feed is driven through a gear system (84,86) synchronously with rotation of the base |
| 4976176 |
Weld crown removal module |
December 11, 1990 |
| The present invention relates to a module for use with a portable lathe to machine an area of a pipe wherein a cutting tool is supported such that the orientation of its axial path of travel varies as the tool rotates around the pipe. The module feeds a cutting tool along an axial feed p |
| 4955263 |
Pipe end preparation tool having improved torque reacting and clamping capabilities |
September 11, 1990 |
| The present invention relates to a clamping device for clamping a mandrel to an elbow or pipe as well as to a torque-reacting device between a power unit housing and the mandrel. The torque reacting device has a pair of torque reacting keys mounted in a non-rotatable portion of the power |
| 4911574 |
Cam lock for tool elements |
March 27, 1990 |
| A locking cam for locking a pair of tool elements together is disclosed. The locking cam member is rotatably mounted in one of the tool elements such that a clamping surface engages a female gib surface formed on the other tool element. Clamping screws exert a rotative force on the cam |
| 4909114 |
Panel saw apparatus |
March 20, 1990 |
| A panel saw apparatus for cutting a straight line in a planar surface such as a boiler tube panel includes a guide rail arranged to be secured to the panel surface in a predetermined position and a cutting assembly mounted on the rail for movement along the rail. The cutting assembly inc |
| 4890385 |
Automatic feed system for a tube cutter |
January 2, 1990 |
| An automatic feed system for a tube cutter is disclosed which automatically feeds a cutting tool into a tube and also automatically resets the cutting tool to its initial position once the tube has been cut. The automatic feed system has a cam element rotatably mounted in a cutting head |
| 4872249 |
Tool support and guide system for repair of boiler tube panels and process for carrying out repa |
October 10, 1989 |
| A tool support and guide assembly for use in repairing boiler tube panels includes a support carriage mountable upon a guide rail that has been previously installed to enable a panel saw tool to be guided along a straight cut line. The support carriage includes a second guide rail co |
| 4829860 |
Segmented sliding bearing arrangement for portable lathe |
May 16, 1989 |
| A portable lathe tool includes fixed and rotating split rings, the fixed ring arranged to be secured to a pipe workpiece, the rotating ring being relatively rotatable with respect thereto for carrying a tool capable of performing a machining operation on the workpiece as it is driven aro |
| 4823655 |
Multi-speed drive system for a portable lathe |
April 25, 1989 |
| A multi-speed drive system for a portable lathe is disclosed wherein two or more input drive gears are utilized to drive a cutting tool holder ring. Each of the input drive gears has a different pitch diameter so that it will impart different drive speeds/torque characteristics to the cu |
| 4802278 |
Gear driven tube cutter |
February 7, 1989 |
| A tube cutting tool is described in which a cutting head is rotatably mounted within a cutting body wherein both define "C" shaped slots to enable the cutting tool to be inserted laterally over a tube. A cutting wheel is attached to the cutting head such that rotation of the cutting |
| 4784028 |
Mandrel assembly for a portable lathe |
November 15, 1988 |
| A mandrel assembly for a portable lathe is disclosed having a clamping system which will accommodate a wide variety of pipe sizes. Jaw blocks are removably attached to the mandrel attaching block to increase or decrease the clamping size of the mandrel. A mandrel mounting head is readily |
| 4754672 |
Segmented sliding bearing arrangement for portable lathe |
July 5, 1988 |
| A portable lathe tool includes fixed and rotating split rings, the fixed ring arranged to be secured to a pipe workpiece, the rotating ring being relatively rotatable with respect thereto for carrying a tool capable of performing a machining operation on the workpiece as it is driven aro |
| 4667548 |
End preparation tool for pipe fittings |
May 26, 1987 |
| An end preparation tool for pipe fittings includes an end preparation tool having a rotary cutting head with shaping bits carried thereon mounted on a base that also carries a universal clamping fixture for pipe fittings having end openings to be machined in preparation for welding. The |
