Did You Know...
...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 7371034 | Drilling attachment A drilling attachment for use in wet and dry drilling operations includes a housing having first and second fluid conduits, and a drive shaft mounted within the housing and having fluid transmitting first and second end portions in fluid communication with a respect... | 05/13/2008 |
| 7357605 | Pilot drill with coupon retainer and hot tapping machine using the same Pilot drill with coupon retainer and hot tapping machine using the same that positively retains a coupon cut out by a hole saw. The pilot drill bit has a shank having a driving end for attachment to a drill driver and a cutting end having a cutting edge thereon, the... | 04/15/2008 |
| 7326009 | Edge-carrying drill body having an internal chip-removal channel An edge-carrying drill body intended for deep hole drilling, is rotatable around a central geometric axis and comprises a through-channel arranged for internal chip evacuation. The channel mouths in front and rear ends of the drill body. A front channel mouth is bri... | 02/05/2008 |
| 7320565 | Edge-carrying drill, method for the manufacture of the drill, and drilling tool comprising such a drill In a first aspect, the invention relates to an edge-carrying drill body (1) of the type that is intended for deep hole drilling, and which is rotatable around a geometric axis (C) as well as comprises a through channel (2) arranged for internal chip ev... | 01/22/2008 |
| 7137403 | Device for producing bypasses under pressure in fluid piping systems A device for producing bypasses under pressure in fluid piping systems, including a horizontal T-shaped body having a radial conduit which can be connected to a connecting collar or seat of the pipe to be bypassed and a radial conduit with a mouth for extracting flu... | 11/21/2006 |
| 6971209 | Stabilization system for an anchor and method of use thereof A stabilization system, including a drive head, stabilization cap and anchor is provided for boring an anchor into the ground and engaging the stabilization cap with the surface of the ground. The drive head engages the head of the anchor and the stabilization cap. ... | 12/06/2005 |
| 6948574 | Ultrasonic annular core bit A core bit for abrasive cutting including a cylindrical tube (3) provided at its end surface with cutting or abrasive bodies (2) and a cover (4) provided at an opposite end surface of the cylindrical tube (3) and secured thereto and havin... | 09/27/2005 |
| 6890132 | Bolt on drive assembly for a core drill A bolt on drive assembly for a core drill which utilizes a spoked reinforcer mounted between a pair of discs. The discs are removably mounted on the tube by bolt fasteners. A drive connection is removably mounted and centrally located on a outer disc of the pair of ... | 05/10/2005 |
| 6786684 | Tubular hole cutter A rotary, tubular hole cutter for quickly cutting holes through materials such as wood, fiberboard, and drywall. The device includes a tubular member with a backing plate attached to one end, with holes in the backing plate that enable the attachment of a convention... | 09/07/2004 |
| 6758237 | Tapping valve A tapping valve having a housing which can be electrically welded to a pipe and which includes a connection piece (2) with a drill (24) therein for drilling the pipe. The connection piece has an inner surface (34). The drill or a bushing (70 | 07/06/2004 |
| 6609447 | Chip shield for facing tool A facing tool includes a fixture that securely holds a workpiece, and a fixture retainer that secures the fixture and workpiece against axial and radial movement during a facing operation. In one embodiment, the fixture includes a two piece construction t... | 08/26/2003 |
| 6341925 | Plug ejecting hole saw with twist-locking interchangeable saw cups A plug ejecting hole saw includes a saw cup provided at a front annular edge wall thereof with a plurality of forward protruding angled cutting teeth, and having at a rear end thereof a circular base wall having therethrough a non-circular aperture concen... | 01/29/2002 |
| 6196908 | Drill for composite materials A diamond coated drill capable of drilling large holes in composite materials and then reaming the holes to their correct size includes a pair of prongs extending from a shank. Each of the prongs has a tip, a grinder, and a reamer. The tips initiate a hol... | 03/06/2001 |
| 6152661 | Wood coring bit A wood coring bit having a base, a central guide shaft, a sleeve extending along the guide shaft, a pair of scribing teeth on the surface of the sleeve adjacent to the work piece, which scores a track into the work piece as the bit rotates and raker tooth... | 11/28/2000 |
| 6152815 | Device for separating bone material from a meat piece A device for separating bone material from meat tissue in a meat piece, such as a spine from a half part of a slaughtered animal, which device is provided with a support for the meat piece for processing and a separating member with a curved separating ed... | 11/28/2000 |
| 5980168 | Hollow crown drill A crown drill including a hollow cylindrical carrier body, which is formed of two coaxially arranged tubes connected with each other, and a cutting member attached to the carrier body and projecting axially beyond the leading end of the carrier body.... | 11/09/1999 |
| 5897593 | Lordotic spinal implant A lordotic implant has a frusto-conical shape with external threads. Prior to placement of the implant, vertebrae are distracted in a manner to provide a desired lordosis between the vertebrae. The pre-distracted vertebrae are then tapped to provide a tap... | 04/27/1999 |
| 5865847 | Lordotic spinal implant A lordotic implant has a frusto-conical shape with external threads. Prior to placement of the implant, vertebrae are distracted in a manner to provide a desired lordosis between the vertebrae. The pre-distracted vertebrae are then tapped to provide a tap... | 02/02/1999 |
| 5820315 | Hole saw roller guide A shaft sized to fit conventional hole saw mandrels has two set screw flats and a retaining head. A cylindrical roller is mounted on the shaft against the retaining head, and a cylindrical spacer is mounted by set screws on the shaft above the roller. The... | 10/13/1998 |
| 5813802 | Drilling tool assembly and its center drill and cup shape drill A center drill used for machining a hole in a work piece which is adapted to be partially enclosed in a cup shape drill member in a side view thereof, includes a drill portion provided on a leading end of the center drill, and a dust extractor radially ou... | 09/29/1998 |
| 5803678 | Hole cutting tools An improved hole saw for cutting holes having a cylindrical shape that includes, along its cutting edge, a plurality of repetitive groups of saw teeth having at least four radially displaced trailing teeth. The displacement of each trailing tooth is such ... | 09/08/1998 |
| 5626444 | Rotary cutting tool A rotary cutting tool is disclosed having an evacuation bore and generally radially extending passages to conduct away material being removed by the tool cutters. In one embodiment, intersecting cutters are disposed at the intersections of right and left ... | 05/06/1997 |
| 5556399 | Bone-harvesting drill apparatus and method for its use A coring drill used to harvest bone from a donor area of the human body is described. The drill bit in its preferred embodiment is formed with a cylindrical, hollow shaft and a half-conical tip or cutting head. The cutting head is provided with a sharpene... | 09/17/1996 |
| 5425395 | Tapping tee assembly The tapping apparatus includes a body that receives a cutter and sleeve. The cutter and sleeve advance together to form an opening in the sidewall of a main conduit about which the body is secured. The sleeve includes external threads that grip into the c... | 06/20/1995 |
| 5408901 | Valve packing removal tool A packing extractor tool (10 ) for removing packing (27) from a valve assembly (20), is described. The extractor tool is comprised of an arcuate sidewall (11) having an opening (17) that enables the extractor tool to be mounted around a valve stem (25) wi... | 04/25/1995 |
| 5393175 | Diamond core drill A diamond core drill using a sealed core bit is fastened centrally by means of a hollow shaft with a slanted cut at one end, that is used in a wedging manner to secure the tool against the work surface. This eliminates the need for an exterior frame and t... | 02/28/1995 |
| 5376092 | Reamer for shaping bone sockets A reamer for shaping a socket, such as a hip socket, comprising a cutting head located at one end of a rotatably driven shaft and having a hemispherical portion with a hemispherical exterior surface. The hemispherical portion containing an open substantia... | 12/27/1994 |
| 5327923 | Valve for installation on a pressurized fluid flow line A valve for installation on a flow line while the flow line is under pressure. The valve includes a two-part valve body and a valve cartridge. Each body portion has a semi-cylindrical channel sized to mate with the flow line. The body portions are secured... | 07/12/1994 |
| 5316037 | Valve for insertion in a pressurized fluid flow line A valve adapted for insertion in a pressurized fluid flow line for blocking and sealing the flow of fluid through the line without disconnecting the line and to maintain the pressure in the upstream end of the line. The valve includes two body portions wh... | 05/31/1994 |
| 5299893 | Disposable surgical cutters A disposable cutter which has a plurality of cutting edges. The cutter has perforations adjoining the cutting edges. The cutter defines an axis of rotation. The cutter is joined to a transparent bowl. The bowl is concentric with the axis of rotation. The ... | 04/05/1994 |
| 5205685 | Hole saw A hole saw, especially suited for sheet-metal work, incorporates an annular ring surrounding the body of the saw, and located at an end adjacent its cutting edge. In accordance with the invention, the diameter of the ring is selected larger than that of t... | 04/27/1993 |
| 5203653 | Reamer for shaping bone sockets A reamer for shaping a socket, such as a hip socket, comprising a cutter head located at one end of a rotatably driven shaft and having a hemispherical portion with a hemispherical exterior surface, the hemispherical portion containing a closed hollow cha... | 04/20/1993 |
| 5105844 | Two step branch forming attachment A T-branch formation device using two identical side members to form a snap-on saddle around a resilient plastic pipe and a screw-in coupling cutter which cuts through resilient piping, retains the cut piece, and simultaneously provides a threaded surface... | 04/21/1992 |
| 5069584 | Hollow drilling tool A hollow drilling tool is made up of an axially extending tubular carrier part, a cutting body at one end of the carrier part, and guide elements located in the axial direction of the carrier part between the cutting body and the carrier part. The radiall... | 12/03/1991 |
| 5058620 | Insertion assembly for boring a hole in a pipe A method for cutting an opening in the side of a pipe carrying gas under pressure, providing a bypass through the cut, and terminating the bypass when the pipe has been repaired, and apparatus for performing steps of the method. A branching saddle is bond... | 10/22/1991 |
| 5044393 | Shell cutter A method for cutting an opening in the side of a pipe carrying gas under pressure, providing a bypass through the cut, and terminating the bypass when the pipe has been repaired, and apparatus for performing steps of the method. A branching saddle is bond... | 09/03/1991 |
| 4979418 | Food processing apparatus A method and apparatus are disclosed for efficiently cutting food items, such as potatoes, into helical strips. The food items are provided seriatim to the cutting assembly from a conveyor system fed by a trough shaker or other singulator device. Food ite... | 12/25/1990 |
| 4966503 | Drill bit for drilling a hole in layered material of different hardness A drill bit for drilling a hole in layered material where the first layer encountered by the bit is softer than the second layer and where the second layer encountered by the bit produces chips capable of abrading the first layer. The drill bit comprises ... | 10/30/1990 |
| 4929128 | Masonry drill assembly A drill assembly for use with a drill motor having a chuck is provided for drilling large holes in masonry materials. The drill assembly includes a tube having at least one masonry cutting element attached to one end. A rod has one end adapted to be recei... | 05/29/1990 |
| 4926726 | Food processing apparatus A method and apparatus are disclosed for efficiently cutting food items, such as potatoes, into helical strips. The food items are provided seriatim to a cutter head assembly from a conveyor system. Food items on the conveyor system are aligned longitudin... | 05/22/1990 |
