Robert Charles Erickson

US Patent:

D459741, Jul 2, 2002

Filed:

Sep 6, 2001

Appl. No.:

29/147822

Inventors:

Robert A. Erickson - Raleigh NC

Assignee:

Kennametal Inc. - Latrobe PA

International Classification:

1509

US Classification:

D15139

US Patent:

6415696, Jul 9, 2002

Filed:

Sep 1, 1999

Appl. No.:

09/388258

Inventors:

Robert A. Erickson - Raleigh NC
William M. Long - Blairsville PA

Assignee:

Kennametal PC Inc. - Monrovia CA

International Classification:

B23B 2900

US Classification:

82160, 407101, 407104, 4033743

Abstract:

An apparatus is disclosed for releasably holding a toolholder shank having a lockable surface and a releasable surface utilizing an actuating bolt with an associated threaded actuating nut. When the actuating bolt is rotated in a locking direction, the actuating nut is drawn onto the bolt thereby clamping against the lockable surfaces of the toolholder shank. When the actuating bolt is rotated in the releasing direction, a releasing segment acts upon the toolholder thereby ejecting it from the tool support member.

US Patent:

6506003, Jan 14, 2003

Filed:

Oct 2, 2001

Appl. No.:

09/969234

Inventors:

Robert A. Erickson - Raleigh NC

Assignee:

Kennametal Inc. - Latrobe PA

International Classification:

B23B 5102

US Classification:

408226, 408230, 408713

Abstract:

A separable rotary cutting tool is disclosed. The tool comprises a shank and a head. The shank has a receiver comprised of a shank guide at a trailing end of the receiver, opposing shank drive keys at a leading end of the receiver, and a shank locator located axially between the shank guide and the shank drive keys. The shank drive keys each comprises an axially extending shank drive key radial stop surface that is disposed at an angle relative to a plane extending through a central axis of the receiver. The head has a connector comprised of a head guide at a trailing end of the connector, opposing head drive keys at a leading end of the connector, and a head locator located axially between the head guide and the head drive keys. The head drive keys each comprises an axially extending head drive key radial stop surface that is disposed at an angle relative to a plane extending through a central axis of the connector. Each shank drive key radial stop surface is adapted to angularly align with a corresponding head drive key radial stop surface.

US Patent:

6543318, Apr 8, 2003

Filed:

Nov 15, 2001

Appl. No.:

09/998952

Inventors:

Robert A. Erickson - Raleigh NC

Assignee:

Kennametal Inc. - Latrobe PA

International Classification:

B23B 300

US Classification:

82 111, 82160, 409234

Abstract:

A locking assembly for a toolholder to releasably secure the toolholder with a tool support member.

US Patent:

6579043, Jun 17, 2003

Filed:

Jul 6, 2001

Appl. No.:

09/900686

Inventors:

Robert A. Erickson - Raleigh NC
John G. Hale - Aurora OH

Assignee:

Kennametal Inc. - Latrobe PA

International Classification:

B23B 2716

US Classification:

407 35, 407 43

Abstract:

A cutting insert has an insert body with at least one pair of cutting regions. Each cutting region is comprised of a cutting edge and the cutting edges in a pair are diametrically opposed to one another about a pair axis. Each cutting edge of a pair faces a single rotary direction along a pair circle, and for each pair of cutting regions the cutting edges have cutting profiles that are not identical to one another. In a toolholder assembly utilizing this arrangement, the cutting edges of a pair protrude beyond the perimeter of the toolholder.

US Patent:

6619897, Sep 16, 2003

Filed:

Jul 8, 2002

Appl. No.:

10/190969

Inventors:

Robert A. Erickson - Raleigh NC
Kenneth R. Mullins - Greensburg PA

Assignee:

Kennametal Inc. - Latrobe PA

International Classification:

B23C 100

US Classification:

409234, 409232, 409233, 82160, 4033221

Abstract:

An apparatus and method for aligning a clamping unit and a toolholder to facilitate proper positioning of a cutting tool with respect to a workpiece.

US Patent:

6632050, Oct 14, 2003

Filed:

Sep 6, 2001

Appl. No.:

09/947622

Inventors:

Robert A. Erickson - Raleigh NC
Paul A. Brown - Hostetter PA

Assignee:

Kennametal Inc. - Latrobe PA

International Classification:

B26D 112

US Classification:

407 21, 407 23, 407 25

Abstract:

A face hobbing cutter including a cutter body having a top surface and a bottom surface and a side surface extending between the top surface and the bottom surface. A plurality of slots are formed within the cutter body extending from the top surface inward into the cutter body. The slots are adapted to receive cutting blades wherein each cutting blade is fixed in position in the respective slot by a wedge clamping assembly. The wedge clamping assembly includes a wedge block and a wedge screw for operatively securing the wedge block within the respective slot. The wedge block includes an outwardly facing locking surface for engaging a side of the cutting blade. The face hobbing cutter further includes an adjustable stop. The adjustable stop is in communication with the slot to support the cutting blade at the desired height from the top surface of the face hobbing cutter.

US Patent:

6773210, Aug 10, 2004

Filed:

Oct 28, 2002

Appl. No.:

10/281504

Inventors:

Robert A. Erickson - Raleigh NC

Assignee:

Kennametal, Inc. - Latrobe PA

International Classification:

B23P 1528

US Classification:

407102, 407105, 407107

Abstract:

An apparatus and method for clamping an insert in a tool holder includes a recess and a clamp pin with a lever portion having a curved surface at each end thereof. The recess includes an angled wall for engaging one of the curved surfaces of the lever portion. A wedge portion is disposed within the recess and operatively coupled to a lock screw such that rotation of the lock screw causes movement of the wedge portion in a first direction. A biasing force is applied to the lever portion to cause the clamp pin to move in a second direction that is different than the first direction. The wedge portion includes one or more angled walls for engaging one of the curved surfaces of the lever portion. Movement of the wedge portion in the first direction causes the angled wall of the recess to act as a cam surface to cause the clamp pin to pivot about a pivot point, P, located along a central axis of the clamp pin.