Ari Lassila

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Helsinki, FI

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Patents Grantslast 30 patents

Information Patent Grant
Calender device for on-line connection to a paper machine
- Patent number 5,131,324
- Issue date Jul 21, 1992
- Valmet Paper Machinery Inc.
- Ari Lassila
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Calender, in particular a supercalender with multiple relief devices
- Patent number 5,038,678
- Issue date Aug 13, 1991
- Valmet Paper Machinery Inc.
- Juha Honkala
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
System of rolls in a supercalender
- Patent number 4,936,207
- Issue date Jun 26, 1990
- Valmet Paper Machinery Inc.
- Juhani Niskanen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Continuously running rewinder with pressure roller
- Patent number 4,721,266
- Issue date Jan 26, 1988
- Oy Wartsila AB
- Pekka Haapanen
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL