Daniel Timothy Dovel

US Patent:

7641202, Jan 5, 2010

Filed:

Oct 6, 2005

Appl. No.:

11/244470

Inventors:

Daniel T. Dovel - Shady Cove OR, US

Assignee:

Professional Tool Manufacturing, LLC - Ashland OR

International Classification:

B23B 31/167

US Classification:

279 58, 279 60, 279 64, 269233

Abstract:

Apparatus for manipulating an article, such as a cutting tool. A moveable jaw member includes first and second inclined surfaces, with the second inclined surface being substantially parallel to the first inclined surface and non-parallel to a central axis. A support structure provides stationary first and second guide surfaces along which the respective first and second inclined surfaces contactingly move. This maintains the jaw member in a selected angular alignment with the central axis as the jaw member advances in a direction orthogonal to the central axis to engage a side of the article. A second jaw member is preferably provided so that the article is clamped between the first and second jaw members. A spring preferably biases the jaw members apart and resists inward movement thereof. A base surface advances along the central axis to contactingly advance and retract the jaw member(s).

US Patent:

8277291, Oct 2, 2012

Filed:

May 2, 2008

Appl. No.:

12/114632

Inventors:

Daniel T. Dovel - Shady Cove OR, US

Assignee:

Professional Tool Manufacturing, LLC - Ashland OR

International Classification:

B24B 9/02

US Classification:

451293, 451 45, 451551

Abstract:

Apparatus and method for sharpening a workpiece, such as a cutting tool. An abrasive disc is rotatable about a disc rotational axis and includes a plurality of spaced apart, radially disposed apertures extending therethrough from a first surface to an opposing second surface of the disc. The first surface is configured to facilitate sharpening of a workpiece by contacting engagement of the workpiece against an abrasive layer adjacent the first surface between adjacent first and second apertures of said plurality. The first surface further induces controlled axial displacement of the workpiece away from the disc as the second aperture approaches the workpiece during disc rotation. The first surface is preferably concave so as to extend into the disc between each adjacent pair of the apertures. Alternatively, the first surface is provided with different compressibilities to induce the controlled axial displacement of the workpiece.

US Patent:

8388413, Mar 5, 2013

Filed:

Sep 21, 2009

Appl. No.:

12/563886

Inventors:

Daniel T. Dovel - Shady Cove OR, US
Christopher T. DeLorenzo - Ashland OR, US

Assignee:

Darex, LLC - Ashland OR

International Classification:

B24B 1/00
B24B 19/00

US Classification:

451 45, 451371

Abstract:

Apparatus and method for sharpening a tool, such as a chisel. A sharpening guide applies a clamping force to secure the tool and advances a beveled leading edge surface of the secured tool against an abrasive surface to sharpen a cutting edge while the guide is in an upright orientation. An alignment plate nestingly receives the guide in an inverted orientation to align the tool prior to sharpening. During alignment, a back surface of the tool slidingly contacts an upper plate surface and the cutting edge contactingly abuts an alignment feature which projects from the plate surface. In some embodiments, the alignment feature comprises a removable alignment pin selectively insertable into a plurality of spaced apart apertures, each providing a final bevel angle for the sharpened tool.

US Patent:

8512103, Aug 20, 2013

Filed:

Dec 21, 2006

Appl. No.:

11/917647

Inventors:

Daniel T. Dovel - Shady Cove OR, US
Christopher T. DeLorenzo - Ashland OR, US
Steven J. Miner - Ashland OR, US

Assignee:

Professional Tool Manufacturing, LLC - Ashland OR

International Classification:

B24B 7/00

US Classification:

451261, 451262, 451267, 451278, 451293, 451371, 451449, 451 45

Abstract:

A tool sharpening assembly () suitable for sharpening cutting tools (). In some embodiments, a wedge-shaped port is formed between a rotational first abrasive surface () and a stationary second abrasive surface () to sharpen a distal cutting edge () of a cutting tool (). In other embodiments, a cooling mechanism () actively draws heat generated during a sharpening operation from a tool () and through a tool support structure () contactingly supporting the tool, in further embodiments, a rotatable abrasive slotted disc () comprises at least one inspection aperture () formed from an interior sidewall () with upper and lower leading and trailing edges () of non-uniform separation distance. In other embodiments, a cylindrical drum abrasive member () is provided with an associated stationary support plate (). In further embodiments, a grinding wheel () is formed of a substrate () and a plurality of abrasive layers () adhered thereto.

US Patent:

20060070760, Apr 6, 2006

Filed:

May 24, 2004

Appl. No.:

10/543346

Inventors:

David Bernard - Ashland OR, US
William Christian - Ashland OR, US
Scott Harris - Eagle Point OR, US
Keith Mosttler - White City OR, US
Hank O'Dougherty - Ashland OR, US
Daniel Dovel - Shady Cove OR, US

Assignee:

Professional Tool Manufacturing, LLC - Ashland OR

International Classification:

B25D 16/00

US Classification:

173109000

Abstract:

A motion conversion assembly is provided, wich is adapted to be attached to a power drill for converting rotational motion of the drill to a reciprocating motion to operate as a reciprocating saw. The motion conversion assembly is mounted in a housing, and employs an offset-angled spindle on a rotatable drive shaft which is coupled to an intermediate shaft sub-assembly in the housing, which cooperated whith the offset-angled apindle to produce a reciprocating motion in the intermediate shaft subassembly as the rotatable drive shaft is rotated.

US Patent:

20110136412, Jun 9, 2011

Filed:

Jun 26, 2008

Appl. No.:

12/809522

Inventors:

Daniel T. Dovel - Shady Cove OR, US

Assignee:

DAREX, LLC - Ashland OR

International Classification:

B24B 3/36

US Classification:

451 45, 451296

Abstract:

Method () and apparatus () for sharpening a cutting tool (). A flexible abrasive belt (A, B, ) with a selected linear stiffness and an abrasive surface (A, B) of selected abrasiveness level is driven () in a selected direction along a selected plane between a first support () and a second support (). In some embodiments, the cutting tool is presented () in contacting engagement against the abrasive surface to induce torsion of the belt () out of the selected plane to conform to a cutting edge () of the cutting tool. In further embodiments, presentation of the cutting tool against the abrasive surface of the belt () induces bending of the belt out of said selected plane at a radius of curvature () determined in relation to said linear stiffness to shape a side surface () of the cutting tool with said radius of curvature.

US Patent:

20130324014, Dec 5, 2013

Filed:

Mar 15, 2013

Appl. No.:

13/844788

Inventors:

Daniel T. Dovel - Shady Cove OR, US

Assignee:

DAREX, LLC - Ashland OR

International Classification:

B24B 3/36

US Classification:

451 45, 451410, 451349

Abstract:

Apparatus and method for sharpening a cutting tool, such as but not limited to a kitchen knife. In accordance with some embodiments, a flexible abrasive disk is adapted for rotation about a central axis at a selected rotational velocity. Centripetal forces imparted to the disk during rotation urge the disk to a neutral position in which an outer peripheral portion of the disk is extended toward a selected plane. A housing adjacent the flexible disk has a guide slot with a guide surface at a selected bevel angle with respect to the selected plane. The guide surface is adapted to facilitate presentation of a cutting tool in contacting engagement against the disk. The cutting tool is presented at the selected bevel angle to induce curvilinear displacement of the flexible disk during sharpening of a cutting edge that extends along a side of the cutting tool.

US Patent:

7147546, Dec 12, 2006

Filed:

Oct 6, 2005

Appl. No.:

11/244479

Inventors:

Daniel T. Dovel - Shady Cove OR, US

Assignee:

Professional Tool Manufacturing, LLC - Ashland OR

International Classification:

B24B 1/00

US Classification:

451 48, 451231, 451375

Abstract:

Method and apparatus for facilitating sharpening of a tool. A tool holder is provided to present the tool for sharpening against an abrasive member, such as a grinding wheel. A moveable jaw member preferably engages a side of the tool to align the tool with a reference axis. The jaw member preferably supports an alignment finger which moves with the jaw member and which contactingly engages the tool to establish a desired angular orientation of the tool with respect to said axis. The tool preferably includes a flute surface and a cutting edge, and the alignment finger contacts the flute surface adjacent said cutting edge. The alignment finger is further preferably configured so that a distal end thereof is initially adjusted against the abrasive member, such as by a grinding operation, while the alignment member contactingly supports the tool.