Patents by Inventor Erling S. Jangaard

Erling S. Jangaard 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: 4843900
    Abstract: A machine that takes screws out of a hopper and delivers them to a screw driving station where they are driven by motor operated screw driver members to secure a hinge to a door and a jamb. Inside the hopper, a screw lifting member engages, lifts, aligns and delivers individual screws to a hopper discharge station. Pressurized air blows the screws from their respective discharge stations onto tracks, there being one track associated with each discharge station. Elongate transfer tubes positioned at the discharge end of the tracks deliver the screws to a movable head member which upon receiving a charge of screw members moves downwardly and inwardly to a fixed position screw driving station where a door and jamb are positioned. Screw driver members are brought into driving relation to associated screws by horizontally inward movement of a motor that rotates the screw driver members.
    Type: Grant
    Filed: April 6, 1988
    Date of Patent: July 4, 1989
    Assignee: Ruvo Automation Corp.
    Inventor: Erling S. Jangaard
  • Patent number: 4839957
    Abstract: A machine that takes screws out of a hopper and delivers them to a screw driving station where they are driven by motor operated screw driver members to secure a hinge to a door and a jamb. Inside the hopper, a screw lifting member engages, lifts, aligns and delivers individual screws to a hopper discharge station. Pressurized air blows the screws from their respective discharge stations onto tracks, there being one track associated with each discharge station. Elongate transfer tubes positioned at the discharge end of the tracks deliver the screws to a movable head member which upon receiving a charge of screw members moves downwardly and inwardly to a fixed position screw driving station where a door and jamb are positioned. Screw driver members are brought into driving relation to associated screws by horizontally inward movement of a motor that rotates the screw driver members.
    Type: Grant
    Filed: April 6, 1988
    Date of Patent: June 20, 1989
    Assignee: Ruvo Automation Corporation
    Inventor: Erling S. Jangaard
  • Patent number: 4837916
    Abstract: A machine that takes screws out of a hopper and delivers them to a screw driving station where they are driven by motor operated screw driver members to secure a hinge to a door and a jamb. Inside the hopper, a screw lifting member engages, lifts, aligns and delivers individual screws to a hopper discharge station. Pressurized air blows the screws from their respective discharge stations onto tracks, there being one track associated with each discharge station. Elongate transfer tubes positioned at the discharge end of the tracks deliver the screws to a movable head member which upon receiving a charge of screw members moves downwardly and inwardly to a fixed position screw driving station where a door and jamp are positioned. Screw driver members are brought into driving relation to associated screws by horizontally inward movement of a motor that rotates the screw driver members.
    Type: Grant
    Filed: April 6, 1988
    Date of Patent: June 13, 1989
    Assignee: Ruvo Automation Corporation
    Inventor: Erling S. Jangaard
  • Patent number: 4815206
    Abstract: A machine that takes screws out of a hopper and delivers them to a screw driving station where they are driven by motor operated screw driver members to secure a hinge to a door and a jamb. Inside the hopper, a screw lifting member engages, lifts, aligns and delivers individual screws to a hopper discharge station. Pressurized air blows the screws from their respective discharge stations onto tracks, there being one track associated with each discharge station. Elongate transfer tubes positioned at the discharge end of the tracks deliver the screws to a movable head member which upon receiving a charge of screw members moves downwardly and inwardly to a fixed position screw driving station where a door and jamb are positioned. Screw driver members are brought into driving relation to associated screws by horizontally inward movement of a motor that rotates the screw driver members.
    Type: Grant
    Filed: April 4, 1988
    Date of Patent: March 28, 1989
    Assignee: Ruvo Automation Corporation
    Inventor: Erling S. Jangaard
  • Patent number: 4782588
    Abstract: A machine that takes screws out of a hopper and delivers them to a screw driving station where they are driven by motor operated screw driver members to secure a hinge to a door and a jamb. Inside the hopper, a screw lifting member engages, lifts, aligns and delivers individual screws to a hopper discharge station. Pressurized air blows the screws from their respective discharge stations onto tracks, there being one track associated with each discharge station. Elongate transfer tubes positioned at the discharge end of the tracks deliver the screws to a movable head member which upon receiving a charge of screw members moves downwardly and inwardly to a fixed position screw driving station where a door and jamb are positioned. Screw driver members are brought into driving relation to associated screws by horizontally inward movement of a motor that rotates the screw driver members.
    Type: Grant
    Filed: November 19, 1986
    Date of Patent: November 8, 1988
    Assignee: Ruvo Automation Corp.
    Inventor: Erling S. Jangaard
  • Patent number: 4588006
    Abstract: A high speed hopper fed trim saw. The saw includes a first cutting station where a miter cut is made in a trim board and a second cutting station where a kerf cut is made in the same board. Boards are discharged one at a time from the hopper onto a stepped base member, and are moved one at a time from the hopper discharge area of the base member to the first cutting station by an indexing mechanism. After the first cut has been made in the first board to leave the hopper discharge area, the indexing mechanism advances the board to the second cutting station and simultaneously delivers a second board to the first cutting station from the hopper discharge area. Subsequent cycles of the machine simultaneously advance the leading board from the second cutting station to a collection area and the following board from the first cutting station to the second cutting station and the board following it from the hopper discharge area to the first cutting station and so on.
    Type: Grant
    Filed: March 8, 1985
    Date of Patent: May 13, 1986
    Assignee: Ruvo Automation Corp.
    Inventor: Erling S. Jangaard