Patents by Inventor Tenho Voutilainen

Tenho Voutilainen 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).

  • Recovery system for blasting device
    Patent number: 6524171
    Abstract: The invention relates to an improved recovery system for blasting works, comprising a space below a perforated floor of the blasting works for receiving the blast material, and suction channels (21) for leading the blast material from the space below the floor to a classifier by using a blower; the recovery system comprises at least one elongated, substantially horizontal chute (17) opening upwards and arranged into the said space, the chute comprising two side walls (18, 19), and an elongated cover element (20) with two elongated free side edges (22, 23) arranged over the chute; the chute (17) and cover element (20) form between them a discharge channel (21) for the blast material; in addition, the system comprises pneumatic cylinders (26) for moving the cover element (20) in vertical direction between a lower and a raised position so that in the lower position, the side edges (22, 23) of the cover element engage the side walls (18, 19) of the chute and, in the raised position, the side edges (22, 23) of the
    Type: Grant
    Filed: July 9, 1999
    Date of Patent: February 25, 2003
    Assignee: Pekotek Oy
    Inventor: Tenho Voutilainen
  • RECOVERY SYSTEM FOR BLASTING DEVICE
    Publication number: 20010055943
    Abstract: The unction relates to au improved recovery system for blasting works, comprising a space below a perforated floor of the blasting works fox receiving the blast material, and suction channels (21) for leading the blast material from the space below the floor to a classifier by using a blower; the recovery system comprises at least one elongated, substantially horizontal chute (17) opening upwards and arranged into the said space, the chute comprising two side walls (18, 19), and an elongated cover element (20) with two elongated free side edges (22, 23) arranged over the chute; the chute (17) and cover element (20) form between them a discharge channel (21) for the blast material; in addition, the system comprises pneumatic cylinders (26) for moving the cover element (20) in vertical direction between a lower and a raised position so that in the lower position, the side edges (22, 23) of the cover element engage the side walls (18, 19) of the chute and, in the raised position, the side edges (22, 23) of the c
    Type: Application
    Filed: July 9, 1999
    Publication date: December 27, 2001
    Applicant: VOUTILAINEN
    Inventor: TENHO VOUTILAINEN