David A. Bernard

Person

Ashland, OR, US

People

Patents Grantslast 30 patents

Information Patent Grant
Drill sharpener
- Patent number 7,172,498
- Issue date Feb 6, 2007
- Professional Tool Manufacturing, LLC
- David A. Bernard
- B24 - GRINDING POLISHING
Information Patent Grant
Precision drill sharpener and grinding wheel assembly therefor
- Patent number 6,626,745
- Issue date Sep 30, 2003
- Darex Corporation
- David A. Bernard
- B24 - GRINDING POLISHING
Information Patent Grant
Precision drill sharpener and grinding wheel assembly therefor
- Patent number 5,735,732
- Issue date Apr 7, 1998
- David A. Bernard
- B24 - GRINDING POLISHING
Information Patent Grant
Precision twist drill sharpener/point splitting machine
- Patent number 5,400,546
- Issue date Mar 28, 1995
- Darex Corporation
- William C. Christian
- B24 - GRINDING POLISHING
Information Patent Grant
End mill sharpener
- Patent number 4,916,866
- Issue date Apr 17, 1990
- Darex Corporation
- David A. Bernard
- B24 - GRINDING POLISHING
Information Patent Grant
Power feed
- Patent number 4,741,226
- Issue date May 3, 1988
- Darex Corporation
- David A. Bernard
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Twist drill point splitting/web thinning apparatus
- Patent number 4,485,596
- Issue date Dec 4, 1984
- Darex Corporation
- David A. Bernard
- B24 - GRINDING POLISHING
Information Patent Grant
Universal twist drill sharpener apparatus
- Patent number 4,471,581
- Issue date Sep 18, 1984
- Darex Corporation
- David A. Bernard
- B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

Information Patent Application
Reciprocating attachment for power drills
- Publication number 20060070760
- Publication date Apr 6, 2006
- Professional Tool Manufacturing, LLC
- David Bernard
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Drill sharpener
- Publication number 20060003676
- Publication date Jan 5, 2006
- Professional Tool Manufacturing
- David A. Bernard
- B24 - GRINDING POLISHING

David A. Bernard

Person

Patents Grantslast 30 patents

Drill sharpener

Precision drill sharpener and grinding wheel assembly therefor

Precision drill sharpener and grinding wheel assembly therefor

Precision twist drill sharpener/point splitting machine

End mill sharpener

Power feed

Twist drill point splitting/web thinning apparatus

Universal twist drill sharpener apparatus

Patents Applicationslast 30 patents

Reciprocating attachment for power drills

Drill sharpener