Beverly E. Johnson

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Pittsburgh, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Sealed and zone rotary grate convection solids processing apparatus
- Patent number 5,868,566
- Issue date Feb 9, 1999
- Techint Technologies Inc.
- Beverly Earl Johnson
- F26 - DRYING
Information Patent Grant
Sealed rotary hearth furnace with central bearing support
- Patent number 4,834,650
- Issue date May 30, 1989
- Salem Furnace Co.
- James P. Docherty
- F27 - FURNACES KILNS OVENS RETORTS
Information Patent Grant
Sealed rotary hearth furnace
- Patent number 4,818,222
- Issue date Apr 4, 1989
- Salem Furnace Co.
- James P. Docherty
- F27 - FURNACES KILNS OVENS RETORTS
Information Patent Grant
Rotating rabbled roof drying and heating furnace
- Patent number 4,669,977
- Issue date Jun 2, 1987
- Salem Furnace Co.
- Beverly E. Johnson
- F26 - DRYING
Information Patent Grant
Method and apparatus for operating a calciner under a pressure diff...
- Patent number 4,096,038
- Issue date Jun 20, 1978
- Salem Furnace Co.
- Ray E. Kranz
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...