Carl A. Clark

Person

Liverpool, NY, US

People

Patents Grantslast 30 patents

Information Patent Grant
Mine roof expansion anchor and bail element
- Patent number 5,344,257
- Issue date Sep 6, 1994
- The Eastern Company
- Raymond L. Wright
- E21 - EARTH DRILLING MINING
Information Patent Grant
Threaded fastener, method of fabrication thereof and method of supp...
- Patent number 5,282,698
- Issue date Feb 1, 1994
- The Eastern Company
- Raymond L. Wright
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Mine roof expansion anchor
- Patent number 5,094,577
- Issue date Mar 10, 1992
- The Eastern Company
- Carl A. Clark
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mine roof expansion anchor shell and leaf
- Patent number 5,011,337
- Issue date Apr 30, 1991
- The Eastern Company
- Carl A. Clark
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mine roof expansion anchor
- Patent number 4,913,593
- Issue date Apr 3, 1990
- The Eastern Company
- Carl A. Clark
- E21 - EARTH DRILLING MINING
Information Patent Grant
Resin reinforced expansion anchor system
- Patent number 4,764,055
- Issue date Aug 16, 1988
- Birmingham Bolt Company, Inc.
- Carl A. Clark
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method of supporting a mine roof using nut element with breakable p...
- Patent number 4,662,795
- Issue date May 5, 1987
- Carl A. Clark
- E21 - EARTH DRILLING MINING
Information Patent Grant
Resin reinforced expansion anchor and method of installation
- Patent number RE31776
- Issue date Dec 25, 1984
- The Eastern Company
- Carl A. Clark
- 405 - Hydraulic and earth engineering
Information Patent Grant
Rock bolt expansion anchor having windened expansion range
- Patent number 4,403,894
- Issue date Sep 13, 1983
- The Eastern Company
- Carl A. Clark
- E21 - EARTH DRILLING MINING
Information Patent Grant
Resin reinforced expansion anchor and method of installation
- Patent number 4,162,133
- Issue date Jul 24, 1979
- The Eastern Company
- Carl A. Clark
- E21 - EARTH DRILLING MINING

Carl A. Clark

Person

Patents Grantslast 30 patents

Mine roof expansion anchor and bail element

Threaded fastener, method of fabrication thereof and method of supp...

Mine roof expansion anchor

Mine roof expansion anchor shell and leaf

Mine roof expansion anchor

Resin reinforced expansion anchor system

Method of supporting a mine roof using nut element with breakable p...

Resin reinforced expansion anchor and method of installation

Rock bolt expansion anchor having windened expansion range

Resin reinforced expansion anchor and method of installation