Donald N. Terwilliger

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Millerton, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Dead length collet chuck assembly
- Patent number 6,726,221
- Issue date Apr 27, 2004
- Hardinge Inc.
- Donald N. Terwilliger
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Collect chuck with quick-change cap
- Patent number 6,257,595
- Issue date Jul 10, 2001
- Hardinge Inc.
- Anthony J. Difasi
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Collet chuck
- Patent number 5,330,224
- Issue date Jul 19, 1994
- Hardinge Brothers, Inc.
- Donald N. Terwilliger
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Collet assembly
- Patent number 5,096,213
- Issue date Mar 17, 1992
- Hardinge Brothers, Inc.
- Donald N. Terwilliger
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Tool for installing or removing a collet head
- Patent number 5,087,059
- Issue date Feb 11, 1992
- Hardinge Brothers, Inc.
- Donald N. Terwilliger
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Two piece collet with interlocking collet segments
- Patent number 4,858,938
- Issue date Aug 22, 1989
- Hardinge Brothers, Inc.
- Donald N. Terwilliger
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
COLLET ADAPTER
- Publication number 20100253016
- Publication date Oct 7, 2010
- HARDINGE, INC.
- Don Terwilliger
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Dead length collet chuck assembly
- Publication number 20030222414
- Publication date Dec 4, 2003
- Donald N. Terwilliger
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR