Timothy J. Plunkett

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Roanoke, VA, US

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Patents Grantslast 30 patents

Information Patent Grant
Foot valve assembly for a down hole drill
- Patent number 8,561,730
- Issue date Oct 22, 2013
- Atlas Copco Secoroc LLC
- Jing James Yao
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Variable frequency control for down hole drill and method
- Patent number 8,215,419
- Issue date Jul 10, 2012
- Atlas Copco Secoroc LLC
- Timothy J. Plunkett
- E21 - EARTH DRILLING MINING
Information Patent Grant
Fluid distributor cylinder for percussive drills
- Patent number 7,992,652
- Issue date Aug 9, 2011
- Atlas Copco Secoroc LLC
- Timothy J. Plunkett
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Exhaust valve and bit assembly for down-hole percussive drills
- Patent number 7,832,504
- Issue date Nov 16, 2010
- Atlas Copco Secoroc LLC
- Dale R. Wolfer
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
FOOT VALVE ASSEMBLY FOR A DOWN HOLE DRILL
- Publication number 20110232922
- Publication date Sep 29, 2011
- Jing James Yao
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
METHOD FOR ASSEMBLING A DOWN HOLE DRILL
- Publication number 20110192009
- Publication date Aug 11, 2011
- Timothy J. Plunkett
- E21 - EARTH DRILLING MINING
Information Patent Application
VARIABLE FREQUENCY CONTROL FOR DOWN HOLE DRILL
- Publication number 20100282509
- Publication date Nov 11, 2010
- Timothy J. Plunkett
- E21 - EARTH DRILLING MINING
Information Patent Application
FLUID DISTRIBUTOR CYLINDER FOR PERCUSSIVE DRILLS
- Publication number 20100193208
- Publication date Aug 5, 2010
- Timothy J. Plunkett
- E21 - EARTH DRILLING MINING
Information Patent Application
Exhaust valve and bit assembly for down-hole percussive drills
- Publication number 20090308661
- Publication date Dec 17, 2009
- Dale R. Wolfer
- E21 - EARTH DRILLING MINING