Jean Barra

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Gardanne, FR

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Patents Grantslast 30 patents

Information Patent Grant
Rotary switching device provided with an axially displaceable conic...
- Patent number 4,726,391
- Issue date Feb 23, 1988
- Aluminium Pechiney
- Jean Barra
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Apparatus for continuous flow feed to disc-type rotary filters
- Patent number 4,704,206
- Issue date Nov 3, 1987
- Aluminium Pechiney
- Jean Barra
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Variable-thickness sector for a rotary disc-type filter
- Patent number 4,699,716
- Issue date Oct 13, 1987
- Aluminium Pechiney
- Jean Barra
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Apparatus for retaining a liquid phase, between a wall and a rotary...
- Patent number 4,664,391
- Issue date May 12, 1987
- Aluminum Pechiney
- Jean Barra
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL