Patents by Inventor Petteri Venetjoki

Petteri Venetjoki 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).

  • Patent number: 7293572
    Abstract: Cleaning equipment for cleaning a moving surface particularly in a paper machine includes a washing head with a chamber in it opening onto the surface to be cleaned and nozzle elements arranged inside the chamber. The cleaning equipment also includes vacuum means and removal means. The vacuum means are arranged in the washing head. In addition, the washing head is arranged to be movable relative to the removal means that are fitted in a fixed manner.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: November 13, 2007
    Assignee: Metso Paper, Inc.
    Inventors: Tomi Honkala, Jari Laine, Petteri Venetjoki
  • Patent number: 6712938
    Abstract: The present invention relates to a method for calendering a moving web (1) of paper or board. The web (1) is passed to a calender (2) and calendered therein. At least one quality of the calendered web (1) is measured at a first measurement point (3) adapted at a location downstream from the calender (2). Additionally, at least one quality of the web (1) entering the calender (2) is measured at a second measurement point (4) adapted at a location between the calender (2) and the preceding section of the line. A control variable (6) affecting the calendering effect on the calender (2) is controlled by a feedback control scheme based on the measurement result obtained from said first measurement point (3) and a control variable (9) affecting the processability of the web (1) to be calendered is controlled by a feedback control scheme based on the measurement result obtained from said second measurement point (4).
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: March 30, 2004
    Assignee: Metso Paper, Inc.
    Inventors: Helena Leppäkoski, Pekka Koivukunnas, Kari Hasanen, Timo Torvi, Petteri Venetjoki
  • Publication number: 20040029663
    Abstract: The invention relates to a safety device (SD) to be used in connection with machines and devices in the production or finishing line of paper and/or paperboard as well as in connection with devices utilized for production of pulp used in the manufacture of paper and/or paperboard. According to the invention the safety device (SD) comprises a reeling core (RC) and a safety structure (SW) reeled around said reeling core (RC). In a preferred embodiment of the invention the reelable safety device (SD) is composed of separate, substantially rigid lamellae (L) that are attached to each other in an articulated manner. As a result of the reelable structure, the safety device (SD) can be easily reeled away from the working area during maintenance and repair and thereafter it can be easily and rapidly reeled back into its place.
    Type: Application
    Filed: September 3, 2003
    Publication date: February 12, 2004
    Inventors: Petteri Venetjoki, Mika Viljanmaa
  • Publication number: 20030178048
    Abstract: Cleaning equipment for cleaning a moving surface particularly in a paper machine includes a washing head with a chamber in it opening onto the surface to be cleaned and nozzle elements arranged inside the chamber. The cleaning equipment also includes vacuum means and removal means. The vacuum means are arranged in the washing head. In addition, the washing head is arranged to be movable relative to the removal means that are fitted in a fixed manner.
    Type: Application
    Filed: March 21, 2003
    Publication date: September 25, 2003
    Inventors: Tomi Honkala, Jari Laine, Petteri Venetjoki
  • Patent number: D538311
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: March 13, 2007
    Assignee: Metso Paper Karlstad AB
    Inventors: Ulf Haraldsson, Petteri Venetjoki, Leif Videgren
  • Patent number: D607909
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: January 12, 2010
    Assignee: Metso Paper Karlstad AB
    Inventors: Ulf Haraldsson, Anders Lindén, Petteri Venetjoki, Leif Videgren
  • Patent number: D609724
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: February 9, 2010
    Assignee: Metso Paper Karlstad AB
    Inventors: Ulf Haraldsson, Anders Linden, Petteri Venetjoki, Leif Videgren