Patents by Inventor Umari Rintasalo

Umari Rintasalo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for cutting of the leader of the web in a paper or board machine in the drying section of the machine
    Patent number: 5445055
    Abstract: A method for cutting of the leader of the web in a paper or board machine in the drying section of the machine by a jet of pressurized water. According to the method, the web is placed against the drying wire when it is being cut, and the jet is directed at the web from the free side of the web. The water-jet pressure used is about 40 bar to about 400 bar bar, preferably about 100 bar, which is produced by an ordinary pressure washer.
    Type: Grant
    Filed: June 22, 1993
    Date of Patent: August 29, 1995
    Assignee: Valmet Paper Machinery, Inc.
    Inventors: Ismo Koponen, Jari Vainio, Umari Rintasalo