1
J Dean Cole, A Glenn Durham: Medical drill assembly transparent to X-rays and targeting drill bit. Smith & Nephew Richards, Pravel Gambrell Hewitt Kimball & Krieger, May 7, 1991: US05013317 (144 worldwide citation)

A medical drill or pin adapter which is X-ray transparent for aligning a drill bit or pin with an internal line of sight during a surgical procedure utilizes gears mounted within a housing. A drive source engages with the drill adapter rod which in turn rotates, via the gears, a drill bit or pin whi ...


2
Stephen P Stiffler: Embossed washer. Kennametal, John J Prizzi, November 30, 2004: US06824225 (139 worldwide citation)

A rotatable cutting bit, and rotatable cutting bit—bit holder assembly and washer that have increased wear resistance characteristics. The assembly incorporates a new holding washer design that has improved rotational characteristics between the cutter bit and top surface of the washer during operat ...


3
Robert H Montgomery Jr: Protective wear sleeve having tapered lock and retainer. Kennametal, John J Prizzi, September 7, 2004: US06786557 (131 worldwide citation)

A cutting tool assembly including a protective wear sleeve that is fixed in the cavity of a bit holder by a tapered wedge portion that is compressed in a correspondingly tapered portion of the bit holder cavity and an accompanying retainer both combine affix the wear sleeve to the bit holder cavity ...


4
Robert H Montgomery Jr: T-shaped cutter tool assembly with wear sleeve. Kennametal, Matthew W Smith, February 15, 2005: US06854810 (127 worldwide citation)

The wear sleeve in the present cutter tool assembly comprises a rearward split ring portion and an intermediate cylindrical ring portion adjacent a forward shoulder portion. The outer diameter of the wear sleeve intermediate portion and rearward split ring portion is uniform. The wear sleeve is inse ...


5
Phillip A Sollami: Bit holders and bit blocks for road milling, mining and trenching equipment. The Sollami Company, Patnaude & Videbeck, April 16, 2002: US06371567 (124 worldwide citation)

An improved bit holder with its mating bit block utilizes a slight taper in the bit block bore, and a tapered shank on the bit holder that includes a second larger diameter tapered distal segment that combines with an axially oriented slot through the side wall of the bit holder shank to allow a sub ...


6
Phillip Sollami: Bit and bit holder/block having a predetermined area of failure. The Sollami Company, Patnaude & Videbeck, April 2, 2002: US06364420 (111 worldwide citation)

Improvements in bits, bit holders and bit blocks used in road resurfacing equipment and mining and trenching equipment provide for improved rotatable bit holders in the bit block, ease of removability of bits from bit holders and for predetermined points of desired failure of any member of the combi ...


7
Phillip A Sollami: Bit holders and bit blocks for road milling, mining and trenching equipment. The Sollami Company, Patnaude & Videbeck, July 1, 2003: US06585326 (108 worldwide citation)

An improved bit holder with its mating bit block is disclosed utilizing a slight taper in the bit block bore, and a tapered shank on the bit holder that includes a second larger diameter tapered distal segment that combines with an axially oriented slot through the side wall of the bit holder shank ...


8
Friedrich Hornung, Fritz Schadlich, Martin Gerschner, Klaus Gunther: Safety circuit for hand tools, and method for safe operation thereof. Robert Bosch, Frishauf Holtz Goodman & Woodward, January 26, 1988: US04722021 (100 worldwide citation)

To detect if a tool bit, such as a drill, a saw blade, or the like, upon being worked into a wall, meets a metallic obstruction, such as a conduit, reinforcement rod, hydraulic pipe or the like, an alternating voltage, preferably between 2 and 20 kHz, is coupled through a coupling capacitor (9) to t ...


9
Theodore J Hasler, James G Hansen, John B King III: Tool bit storage case. Black & Decker, Harness Dickey & Pierce, October 8, 1996: US05562208 (81 worldwide citation)

A tool bit storage case includes a front cover preferably hingedly interconnected with a back cover, with the covers being selectively separable and movable toward and away from each other between open and closed positions and together defining a generally hollow storage chamber therebetween. A remo ...


10
Michael Lee O Neill: Apparatus for holding a cutting bit. Joy MM Delaware, Kirkpatrick & Lockhart, March 10, 1998: US05725283 (81 worldwide citation)

Apparatus for supporting a mining bit in a bit holder which attaches to the rotatable drum of a mining machine. The apparatus comprises a sleeve that is adapted to be received in aperture in the bit holder. The sleeve has an aperture therethrough for rotatably receiving a cutting bit. The sleeve has ...