1
Harold P Bovenkerk: Compact of boron-doped diamond and method for making same. General Electric Company, Douglas B Little, D A Dearing, May 19, 1981: US04268276 (275 worldwide citation)

In one embodiment, a compact for tools, such as cutting, drilling, wire drawing and shaping tools, consists essentially of a porous mass of self-bonded, boron-doped diamond particles and a catalyst-solvent material. The method for making such a compact comprises the steps of bonding a mass of boron- ...


2
Mahlon D Dennis, Paul D Gigl: Composite compact of interleaved polycrystalline particles and cemented carbide masses. General Electric Company, Douglas B Little, W S Feiler, D A Dearing, March 10, 1981: US04255165 (253 worldwide citation)

One or more masses of bonded particles of diamond, cubic boron nitride (CBN), and wurtzite boron nitride (WBN) are sandwiched between or encapsulated by two masses of cemented carbide bonded to the particle masses. In the preferred embodiment, the particle masses are comprised of (1) at least 70% by ...


3
Harold P Bovenkerk, Gordon M Kibler: Diamond and cubic boron nitride abrasive compacts using size selective abrasive particle layers. General Electric Company, Douglas B Little, Jerry K Mueller Jr, January 19, 1982: US04311490 (177 worldwide citation)

Disclosed is an improved process for preparing a composite compact wherein a mass of abrasive crystals, a mass of metal carbide, and a bonding medium are subjected to a high-temperature/high pressure process for providing a composite compact. The sintered carbide mass supports the mass of abrasive c ...


4
Donald A Thompson: Cutting and drilling apparatus with threadably attached compacts. General Electric Company, Douglas B Little, Dennis A Dearing, William S Feiler, April 22, 1980: US04199035 (175 worldwide citation)

An apparatus for rock cutting and drilling. A preferred embodiment of the apparatus is a drill bit comprised of composite compact cutters removably secured or attached to the drill crown. The cutter is preferably comprised of a stud or pin with an abrasive composite compact bonded at one end of the ...


5
Paul D Gigl: Process for making diamond and cubic boron nitride compacts. General Electric Company, Robert R Schroeder, Douglas B Little, June 25, 1985: US04525179 (158 worldwide citation)

The high pressure/high temperature (HP/HT) process for making diamond or CBN compacts has been modified by placing partitions within the crystal mass before HP/HT processing. With reference to FIG. 3, within the shield metal sleeve 11 and shield metal cup 14 are placed pliable metal shapes 20 in a h ...


6
Warren R Beck, Richard B Castle: Proppant for well fractures and method of making same. Minnesota Mining and Manufacturing Company, Donald M Sell, James A Smith, Douglas B Little, January 15, 1985: US04493875 (158 worldwide citation)

The novel proppant consists of composite particles, the core of which is a conventional proppant particle such as silica sand. The core has a thin, void-containing coating which provides an overall density approaching that of the fracturing fluid. The coating preferably comprises hollow glass micros ...


7
Theodore J Szczech: Retroreflective material with improved angularity. Minnesota Mining and Manufacturing Company, Douglas B Little, Gary L Griswold, Walter N Kirn, August 11, 1992: US05138488 (154 worldwide citation)

The present invention provides an improved cube-corner retroreflective article that exhibits a wide range of retroreflective angularity in multiple viewing planes. The present invention provides cube-corner retroreflective elements having a decreased size, as measured by the height of the cube corne ...


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Stephen C P Joseph, Malcolm F Douglas, Alan F Butler, David R Bastow, Jerry E Salhus, Margaret A Hartfel: Apparatus for spraying liquids, disposable containers and liners suitable for use therewith. 3M Innovative Properties Company, Douglas B Little, November 23, 2004: US06820824 (108 worldwide citation)

A spray gun has a fluid reservoir that contains a removable liner. The liner, which may be thermo/vacuum-formed from a plastics material, is a close fit within the interior of the reservoir and collapses as fluid is withdrawn from within the liner during operation of the gun. Preferably, the liner h ...


10
Constantin I Ruta, Russell E Blette, Christopher S Lyons, Robert J Fleming: Apparatus and method of atomizing and vaporizing. 3M Innovative Properties Company, Douglas B Little, January 11, 2000: US06012647 (97 worldwide citation)

Apparatus suitable for atomizing and vaporizing at least a first liquid by colliding at least one gas with the first liquid. The apparatus includes a gas inlet through which the gas enters the apparatus and a first liquid inlet through which the first liquid enters the apparatus. A discharge end of ...