Ingvar Johansson

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Lilla Edet, SE

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Patents Grantslast 30 patents

Information Patent Grant
Pressure sealing device for the gap between two coaxial cylindrical...
- Patent number 5,029,880
- Issue date Jul 9, 1991
- Volvo Hydraulik AB
- Ingvar Johansson
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Piston ring assembly for hydraulic mechanisms, particularly such me...
- Patent number 4,477,090
- Issue date Oct 16, 1984
- Ingvar Johansson
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Sealing device with radially slitted metal washers for hydraulic pi...
- Patent number 4,455,028
- Issue date Jun 19, 1984
- Volvo Flygmotor AB
- Ingvar Johansson
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...