James F. Cantrel

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Easton, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Metal insert mounting
- Patent number 4,823,893
- Issue date Apr 25, 1989
- Ingersoll-Rand Company
- James F. Cantrel
- E21 - EARTH DRILLING MINING
Information Patent Grant
Threaded engagement means
- Patent number 4,551,050
- Issue date Nov 5, 1985
- Ingersoll-Rand Company
- Robert W. Hughes
- E21 - EARTH DRILLING MINING
Information Patent Grant
Plural-part earth bit, and an improved bit head therefor
- Patent number 4,505,343
- Issue date Mar 19, 1985
- Ingersoll-Rand Company
- Robert W. Hughes
- E21 - EARTH DRILLING MINING
Information Patent Grant
Plural-part earth bit, and an improved bit head therefor
- Patent number 4,413,689
- Issue date Nov 8, 1983
- Ingersoll-Rand Co.
- Robert W. Hughes
- E21 - EARTH DRILLING MINING
Information Patent Grant
Friction rock stabilizer and method for inserting thereof in an ear...
- Patent number 4,314,778
- Issue date Feb 9, 1982
- Ingersoll-Rand Co.
- James F. Cantrel
- E21 - EARTH DRILLING MINING
Information Patent Grant
Friction rock stabilizer and method for inserting thereof in an ear...
- Patent number 4,260,294
- Issue date Apr 7, 1981
- Ingersoll-Rand Company
- James F. Cantrel
- E21 - EARTH DRILLING MINING