DAVID A HUDSON
Engineering in Stoughton, MA
License number
Massachusetts 18818
Issued Date
Oct 30, 1999
Type
Engineer in Training
Address
Address
Stoughton, MA 02072
Professional information
Apparatus And Method For Refinishing A Surface In-Situ
US Patent:
2012000, Jan 5, 2012
Filed:
Jul 1, 2010
Appl. No.:
12/828416
Inventors:
David A. Hudson - Stoughton MA, US
Craig Karl Wallace - Braintree MA, US
Michael McLaughlin - Stoughton MA, US
John A. Umina - Waltham MA, US
John D. Andrews - Boxborough MA, US
Richard D. Regan - Framingham MA, US
Craig Karl Wallace - Braintree MA, US
Michael McLaughlin - Stoughton MA, US
John A. Umina - Waltham MA, US
John D. Andrews - Boxborough MA, US
Richard D. Regan - Framingham MA, US
Assignee:
ARTISAN INDUSTRIES INC. - Waltham MA
International Classification:
B24B 51/00, B24B 15/04
US Classification:
451 5, 451252
Abstract:
A rotary grinding system includes a support frame and a grinding assembly coupled to the support frame for longitudinal movement, with respect to a workpiece attached to the support frame. A radial arm is suspended below the grinding assembly and rotated in a plane parallel to the workpiece. A grinding wheel traverses the radial arm, thereby working a circular, annular or sector portion of the workpiece. The height, and therefore the depth of cut, of the grinding wheel may be precisely adjusted via a single point adjustment screw or the like. Optionally, the grinding system may be controlled by a computer numeric controller (CNC) to automatically refinish programmed portions or all of the workpiece. Eccentric pins extending from the support frame and into the workpiece may be used to adjust the lateral position of the support frame, relative to the workpiece. Support members may be used to offload the weight of at least a portion of the grinding assembly, thereby relieving bearings of this weight, such as during shipment or storage of the system.
Apparatus And Methods For Refinishing A Surface In-Situ
US Patent:
6921322, Jul 26, 2005
Filed:
Jan 24, 2003
Appl. No.:
10/350625
Inventors:
Andrew E. Donovan - Waltham MA, US
Edmund L. Pessa - Arlington MA, US
David A. Hudson - Stoughton MA, US
Edmund L. Pessa - Arlington MA, US
David A. Hudson - Stoughton MA, US
Assignee:
Artisan Industries, Inc. - Waltham MA
International Classification:
B24B015/03
US Classification:
451252, 451115, 451430, 451443, 451 49, 451 51, 451 63
Abstract:
The invention features a self-contained, portable apparatus for performing precision grinding operations on metal disks of up to, e. g. , 54 inches in diameter. The apparatus can be attached to the surface of the disk to be refinished and is leveled using special precision leveling adjusters. During operation, the adjusters are turned in precision increments to set the depth of cut. The grinder is then rotated on an arm about the center of the disk, by the use of a hydraulically driven speed reducer, rotor, bearing assembly. In a further aspect, the invention includes a dressing assembly for performing dressing-truing on a vitreous wheel when the wheel is in grinding position. The in position dressing assembly dresses a grinding wheel at up to 0. 00125-inch increments.