David S. Calkins

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Branford, CT, US

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Patents Grantslast 30 patents

Information Patent Grant
Modular portable rivet setting tool
- Patent number 6,347,449
- Issue date Feb 19, 2002
- Emhart Inc.
- David S. Calkins
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Rivet tool adjustable rivet delivery device
- Patent number 6,125,680
- Issue date Oct 3, 2000
- Emhart Inc.
- James M. Bradbury
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Power supply and rivet supply console for a rivet setting tool
- Patent number D429687
- Issue date Aug 22, 2000
- Emhart, Inc.
- Mark Steiner
- D13 - Equipment for production, distribution, or transformation of energy
Information Patent Grant
Rivet tool escapement mechanism
- Patent number 6,079,604
- Issue date Jun 27, 2000
- Emhart, Inc.
- David J. Banducci
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Rivet setting tool
- Patent number D423896
- Issue date May 2, 2000
- Emhart Inc.
- Mark Steiner
- D08 - Tools and hardware

Patents Applicationslast 30 patents

Information Patent Application
Rivet tool with remote intensifier auto fill/recharge system
- Publication number 20040148747
- Publication date Aug 5, 2004
- James N. Woyciesjes
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...