Ronald M. Dufrane

Person

Simsbury, CT, US

People

Patents Grantslast 30 patents

Information Patent Grant
Coreless-coil shock tube system with reduced noise
- Patent number 11,845,703
- Issue date Dec 19, 2023
- Micah S. Casebier
- F42 - AMMUNITION BLASTING
Information Patent Grant
Coreless-coil shock tube system with reduced noise
- Patent number 11,554,998
- Issue date Jan 17, 2023
- Ensign-Bickford Aerospace & Defense Company
- Micah S. Casebier
- F42 - AMMUNITION BLASTING
Information Patent Grant
Coreless-coil shock tube system with reduced noise
- Patent number 11,192,832
- Issue date Dec 7, 2021
- Ensign-Bickford Aerospace & Defense Company
- Micah S. Casebier
- F42 - AMMUNITION BLASTING
Information Patent Grant
Initiation fixture and an initiator assembly including the same
- Patent number 7,490,554
- Issue date Feb 17, 2009
- Ensign-Bickford Aerospace & Defence Company
- David C. Lynch
- F42 - AMMUNITION BLASTING
Information Patent Grant
Detonators having multiple-line input leads
- Patent number 5,747,722
- Issue date May 5, 1998
- The Ensign-Bickford Company
- Ernest L. Gladden
- C06 - EXPLOSIVES MATCHES
Information Patent Grant
Method and apparatus for transfer of initiation signals
- Patent number 5,708,228
- Issue date Jan 13, 1998
- The Ensign-Bickford Company
- Daniel P. Sutula
- C06 - EXPLOSIVES MATCHES
Information Patent Grant
Connector for blast initiation system
- Patent number 5,703,320
- Issue date Dec 30, 1997
- The Ensign-Bickford Company
- Frank J. Lucca
- C06 - EXPLOSIVES MATCHES
Information Patent Grant
Slider member for booster explosive charges
- Patent number 5,661,256
- Issue date Aug 26, 1997
- The Ensign-Bickford Company
- Daniel P. Sutula
- C06 - EXPLOSIVES MATCHES
Information Patent Grant
Delay train ignition buffer
- Patent number 5,031,538
- Issue date Jul 16, 1991
- The Ensign-Bickford Company
- Ronald M. Dufrane
- C06 - EXPLOSIVES MATCHES

Patents Applicationslast 30 patents

Information Patent Application
CORELESS-COIL SHOCK TUBE SYSTEM WITH REDUCED NOISE
- Publication number 20240116834
- Publication date Apr 11, 2024
- ENSIGN-BICKFORD AEROSPACE & DEFENSE COMPANY
- Micah S. Casebier
- F42 - AMMUNITION BLASTING
Information Patent Application
CORELESS-COIL SHOCK TUBE SYSTEM WITH REDUCED NOISE
- Publication number 20220213005
- Publication date Jul 7, 2022
- ENSIGN-BICKFORD AEROSPACE & DEFENSE COMPANY
- Micah S. Casebier
- C06 - EXPLOSIVES MATCHES
Information Patent Application
CORELESS-COIL SHOCK TUBE SYSTEM WITH REDUCED NOISE
- Publication number 20210317052
- Publication date Oct 14, 2021
- ENSIGN-BICKFORD AEROSPACE & DEFENSE COMPANY
- Micah S. Casebier
- F42 - AMMUNITION BLASTING
Information Patent Application
CORELESS-COIL SHOCK TUBE SYSTEM WITH REDUCED NOISE
- Publication number 20210094890
- Publication date Apr 1, 2021
- ENSIGN-BICKFORD AEROSPACE & DEFENSE COMPANY
- Micah S. Casebier
- F42 - AMMUNITION BLASTING
Information Patent Application
INITIATION FIXTURE AND AN INITIATOR ASSEMBLY INCLUDING THE SAME
- Publication number 20080282923
- Publication date Nov 20, 2008
- ENSIGN-BICKFORD AEROSPACE & DEFENSE COMPANY
- David C. Lynch
- F42 - AMMUNITION BLASTING
Information Patent Application
INITIATION FIXTURE AND AN INITIATOR ASSEMBLY INCLUDING THE SAME
- Publication number 20080245253
- Publication date Oct 9, 2008
- ENSIGN-BICKFORD AEROSPACE & DEFENSE COMPANY
- David C. Lynch
- F42 - AMMUNITION BLASTING
Information Patent Application
INITIATION FIXTURE AND AN INITIATOR ASSEMBLY INCLUDING THE SAME
- Publication number 20080066639
- Publication date Mar 20, 2008
- David C Lynch
- F42 - AMMUNITION BLASTING
Information Patent Application
INITIATION FIXTURE AND AN INITIATOR ASSEMBLY INCLUDING THE SAME
- Publication number 20080047452
- Publication date Feb 28, 2008
- David C Lynch
- F42 - AMMUNITION BLASTING
Information Patent Application
Initiation fixture and an initiator assembly including the same
- Publication number 20050126418
- Publication date Jun 16, 2005
- David C Lynch
- F42 - AMMUNITION BLASTING

Ronald M. Dufrane

Person

Patents Grantslast 30 patents

Coreless-coil shock tube system with reduced noise

Coreless-coil shock tube system with reduced noise

Coreless-coil shock tube system with reduced noise

Initiation fixture and an initiator assembly including the same

Detonators having multiple-line input leads

Method and apparatus for transfer of initiation signals

Connector for blast initiation system

Slider member for booster explosive charges

Delay train ignition buffer

Patents Applicationslast 30 patents

CORELESS-COIL SHOCK TUBE SYSTEM WITH REDUCED NOISE

CORELESS-COIL SHOCK TUBE SYSTEM WITH REDUCED NOISE

CORELESS-COIL SHOCK TUBE SYSTEM WITH REDUCED NOISE

CORELESS-COIL SHOCK TUBE SYSTEM WITH REDUCED NOISE

INITIATION FIXTURE AND AN INITIATOR ASSEMBLY INCLUDING THE SAME

INITIATION FIXTURE AND AN INITIATOR ASSEMBLY INCLUDING THE SAME

INITIATION FIXTURE AND AN INITIATOR ASSEMBLY INCLUDING THE SAME

INITIATION FIXTURE AND AN INITIATOR ASSEMBLY INCLUDING THE SAME

Initiation fixture and an initiator assembly including the same