BRADLEY A MILLER
Pilots at Maple Cir, Westboro, MA

6193593, Feb 27, 2001

Jul 12, 1999

9/351965

Bradley J. Miller - Westboro MA
Richard F. Buckley - Shrewsbury MA
David M. Duarte - Sterling MA
John Hagan - Shrewsbury MA
Mianxue Wu - Worcester MA

B24B 2500

451461

A grinding wheel is provided for grinding the fire deck of an engine block. The grinding wheel, includes a first annular grinding element disposed concentrically with the wheel on a backing plate. The first annular grinding element includes a first abrasive component of either metal brazed single layer abrasive components or abrasive components comprising grain bonded in a porous matrix having about 55 to 80 volume percent interconnected porosity. The wheel preferably has a second annular grinding element disposed concentrically inward of the first annular grinding element. The first annular grinding element preferably comprises a single layer of relatively course diamond abrasive component brazed on a metallic substrate, while the second annular grinding element preferably comprises a single layer of relatively fine diamond abrasive components brazed on a similar substrate. Each of the first and second grinding elements are formed as a discrete units individually fastened to the backing plate to facilitate independent height adjustment of the annular grinding elements relative the backing plate. Fabrication of the first and second annular grinding elements as discrete members individually fastened to the backing plate serves to simplify both assembly of the wheel and height adjustment of the first and second annular grinding elements relative one another.

6245443, Jun 12, 2001

Aug 28, 1996

8/704190

Ren-Kae Shiue - Taipei, TW
Thomas W. Eagar - Belmont MA
Bradley Miller - Westboro MA

Norton Company - Worcester MA

B32B 1501, B32B 1516, B32B 1518, B32B 1520

428615

A bond for a metal single layer abrasive tool can be easily chemically and electrochemically stripped from the metal core of a recovered used tool to facilitate reuse of the core. Relative to conventionally bonded tools, the speed of stripping the novel bond is quick, and the stripped core has a smooth, clean surface which needs only minimal mechanical repair prior to reuse. The composition of the novel bond consists essentially of copper, tin and titanium. It can be brazed at temperatures below diamond graphitization and is chemically compatible with diamond. Hence, the bond is particularly useful for the manufacture of large diameter, superabrasive metal single layer abrasive wheels employed in the construction industry. The bond can be applied to the cutting surface of the abrasive tool as a uniform mixture of bronze alloy, titanium compound and copper powders. The powders may be mixed with a liquid vehicle and applied as a paste.

6224473, May 1, 2001

Aug 5, 1999

9/368988

Bradley J. Miller - Westboro MA
John Hagan - Shrewsbury MA

Norton Company

B24B 2500

451461

A method and apparatus for machining flat or planarizing a fire deck of a bimetallic engine block includes providing a grinding wheel by disposing a series of abrasive inserts at spaced locations along a circumference of a circular head, so that during rotation of the head, the inserts form a notional annular grinding ring. The head is preferably a conventional milling head and the inserts are sized and shaped to fit within receptacles adapted to receive conventional milling inserts. In an alternate embodiment, a second series of abrasive inserts may be disposed radially inward of the first series of inserts to form an inner notional annular grinding ring disposed concentrically with the outer ring. Inner and outer inserts preferably comprise a single layer of diamond abrasive brazed onto a metallic substrate. Fabrication of the inserts with a single layer of abrasive brazed onto a substantially planar grinding face may enable a conventional milling head and milling machine to grind bimetallic workpieces without the need for the guarding typically required for bonded abrasive grinding wheels.

5774727, Jun 30, 1998

Dec 27, 1995

8/579457

Robert J. Walsh - Hopkinton MA
Bradley Miller - Westboro MA

Digital Equipment Corporation - Maynard MA

G06F 944, G06F 945

395706

A language construct that allows a software programmer to use an intermediate or high-level language command to explicitly group operations or fuse loops in a group of statements operating on parallel arrays is disclosed. The command instructs a compiler, which would otherwise add temporary variables to avoid data dependencies or perform data dependency analysis, to translate the enclosed statements directly into machine language code without adding those temporary variables and without performing any data dependency analysis. Execution of the command results in the performance of the group of statements by all of the virtual processors.

5951378, Sep 14, 1999

Aug 7, 1997

8/908657

Bradley J. Miller - Westboro MA
Richard F. Buckley - Shrewsbury MA
David M. Duarte - Sterling MA
John Hagan - Shrewsbury MA
Mianxue Wu - Worcester MA

Norton Company - Worcester MA

B24B 100

451 58

A method is provided for machining the fire deck of an engine block. The method includes providing a grinding wheel having an outer annular grinding element disposed concentrically or the wheel may be provided with an inner annular grinding element disposed concentrically inward of an outer element. The outer element comprises a single layer of relatively coarse diamond abrasive brazed on a metallic substrate, while the inner element comprises a single layer of relatively fine diamond abrasive brazed on a similar substrate. The outer grinding element and the inner element if utilized, is formed as a discrete unit individually fastened to a backing plate to facilitate independent height adjustment of the elements relative the backing plate. The method further comprises orienting the grinding wheel with its axis of rotation at a predetermined oblique angle a relative the fire deck. The wheel is then translated towards the engine block along a tool path parallel to the fire deck wherein the outer ring will engage the block for bulk material removal, followed by the inner ring, if utilized, which removes a smaller amount of material to apply the requisite surface finish to the fire deck.

5855314, Jan 5, 1999

Mar 7, 1997

8/813145

Ren-Kae Shiue - Taipei, TW
Bradley J. Miller - Westboro MA
Eric Schulz - Worcester MA
Thomas W. Eagar - Belmont MA

Norton Company - Worcester MA

B23K 119

2281245

An abrasive grit for a metal bonded Single Layer abrasive tool includes abrasive grains coated with a first active component. The active component is mechanically-bound to the surface of the superabrasive grains. Preferably the abrasive is a superabrasive, especially diamond, and the first active component is titanium, either in the form of elemental Ti or TiH. sub. 2. The novel grit is made by mixing the first active powder component in a liquid binder to form an adhesive paste; mixing the paste with the abrasive grains to wet the grains, and drying the mixture to adhere active component to the grains. The coated abrasive can be brazed onto a core to form a Single Layer tool, especially with a brazing composition that includes a bronze alloy and small concentrations of a second active component. During brazing the novel abrasive grains provide excellent surface contact with the brazing composition and the braze strongly bind the grains to the tool core. The brazed composition is easy to chemically or electrochemically strip from the cores of worn abrasive tools to permit reconstruction of the tools.

6187071, Feb 13, 2001

Jan 14, 1999

9/231922

Richard M. Andrews - Westborough MA
Bradley J. Miller - Westboro MA
Marcus R. Skeem - Sandy UT
Ren-Kae Shiue - Taipei, TW

Norton Company - Worcester MA

B22F 300, C22C 308, C22C 902, B24D 306, B24D 310

51309

A bond for a single layer metal bond abrasive tool can be easily chemically and electrochemically stripped from the metal core of a recovered used tool to facilitate reuse of the core. Relative to conventionally bonded tools, the speed of stripping the novel bond is quick, and the stripped core has a smooth, clean surface which needs only minimal mechanical repair prior to reuse. In one aspect, the novel bond is a quaternary bond composition consisting essentially of copper, tin, titanium and silver. The powder components can be used dry or mixed with a fugitive liquid binder as a paste. The novel bond can be brazed at lower temperature than copper/tin/titanium bonds prepared otherwise. The bond composition forms a good melt at braze temperature that flows smoothly, evenly over a tool preform and provides consistent quality bonding of abrasive from tool to tool.

5846269, Dec 8, 1998

Aug 7, 1996

8/693763

Ren-Kae Shiue - Taipei, TW
Richard Andrews - Westborough MA
Thomas W. Eagar - Belmont MA
Bradley Miller - Westboro MA

Norton Company - Worcester MA

B24D 302

51295

A bond material for a metal single layer abrasive tool, and especially for a tool with diamond abrasive, provides an excellent combination of mechanical properties including structural strength and impact resistance. The bond material is sufficiently compatible with both metal and diamond to effectively wet the abrasive grains and the core of the tool during brazing. The bond material can braze at a temperature range low enough that the core will not distort and diamond grains will not graphitize during brazing. The novel bond material composition contains a copper/tin bronze alloy; elemental titanium; zirconium; hard granular wear resistant particles; and elemental carbon. The wear resistant particles are preferably titanium carbide. Importantly, the bond produced from the material has superior wear resistance while remaining very adhesive to diamond.

5832360, Nov 3, 1998

Aug 28, 1997

8/920242

Richard M. Andrews - Westborough MA
Bradley J. Miller - Westboro MA
Marcus R. Skeem - Sandy UT
Ren-Kae Shiue - Taipei, TW

Norton Company - Worcester MA

B22F 300

428552

A bond for a single layer metal bond abrasive tool can be easily chemically and electrochemically stripped from the metal core of a recovered used tool to facilitate reuse of the core. Relative to conventionally bonded tools, the speed of stripping the novel bond is quick, and the stripped core has a smooth, clean surface which needs only minimal mechanical repair prior to reuse. In one aspect, the novel bond consists essentially of a ternary bond composition of copper, tin and titanium, in which the copper and tin are pre-alloyed and the pre-alloy and titanium component are incorporated in the bond composition as fine particle size powders. In another aspect, the bond is a quaternary bond composition consisting essentially of copper, tin, titanium and silver. The powder components can be used dry or mixed with a fugitive liquid binder as a paste. The novel bond can be brazed at lower temperature than copper/tin/titanium bonds prepared otherwise.

6096107, Aug 1, 2000

Jan 3, 2000

9/476506

Constantinos A. Caracostas - Athens, GR
Richard M. Andrews - Westborough MA
Bradley J. Miller - Westborough MA

Norton Company - Worcester MA

B24D 302, B24D 306, B24D 308, B24D 310

51297

Coated abrasives with engineered abrasive surfaces are produced using superabrasive particles mixed with metal particles in a cold-forming process.