Patents Assigned to KVAL, Inc.
  • Patent number: 11498164
    Abstract: Techniques are disclosed for remotely switching screw color or screw type feeding into a door assembly machine with an auto-hinge applicator. An apparatus having a turntable is supported on bearings and a framework. Each side of the turntable includes a screw hopper accessible via a rotary index. The screw hoppers receive a user input to make a screw selection. Upon receiving a selection, one of the hoppers indexes into position, allowing the correct screw to feed to the hinge applicator. Screw feed-hoses from screwdrivers on the hinge applicator are arranged to connect to a manifold below the screw hoppers. Screws drop from the hoppers into a manifold, at which point the screws are blown with compressed air through the feed-hoses to the screwdrivers on the hinge applicator. Screws can be reloaded into the screw hoppers when rotated in alignment with the hinge side of the door assembly machine.
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: November 15, 2022
    Assignee: KVAL, INC.
    Inventors: Gerald Kvalheim, Scott Bacon, David Schneider
  • Patent number: 11123827
    Abstract: Techniques are disclosed for remotely switching screw color or screw type feeding into a door assembly machine with an auto-hinge applicator. An apparatus having a turntable is supported on bearings and a framework. Each side of the turntable includes a screw hopper accessible via a rotary index. The screw hoppers receive a user input to make a screw selection. Upon receiving a selection, one of the hoppers indexes into position, allowing the correct screw to feed to the hinge applicator. Screw feed-hoses from screwdrivers on the hinge applicator are arranged to connect to a manifold below the screw hoppers. Screws drop from the hoppers into a manifold, at which point the screws are blown with compressed air through the feed-hoses to the screwdrivers on the hinge applicator. Screws can be reloaded into the screw hoppers when rotated in alignment with the hinge side of the door assembly machine.
    Type: Grant
    Filed: September 16, 2017
    Date of Patent: September 21, 2021
    Assignee: Kval, Inc.
    Inventors: Gerald Kvalheim, Scott Bacon, David Schneider
  • Patent number: 10739749
    Abstract: A system and method capable of encoding design intent for an article of manufacture wherein the original design intent encoding is abstract from any particular manufacturing process or machine, but allows for dynamic process adjustment accounting for real-world variations of stock material such that the design intent is preserved and the processing time and effort are not significantly affected. Because design intent is preserved, tool selection and machine process can be optimized to maximize quality and minimize manufacturing time and cost.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: August 11, 2020
    Assignee: KVAL, INC.
    Inventors: David Schneider, Jedidiah Buck McCready
  • Publication number: 20190084100
    Abstract: Techniques are disclosed for remotely switching screw color or screw type feeding into a door assembly machine with an auto-hinge applicator. An apparatus having a turntable is supported on bearings and a framework. Each side of the turntable includes a screw hopper accessible via a rotary index. The screw hoppers receive a user input to make a screw selection. Upon receiving a selection, one of the hoppers indexes into position, allowing the correct screw to feed to the hinge applicator. Screw feed-hoses from screwdrivers on the hinge applicator are arranged to connect to a manifold below the screw hoppers. Screws drop from the hoppers into a manifold, at which point the screws are blown with compressed air through the feed-hoses to the screwdrivers on the hinge applicator. Screws can be reloaded into the screw hoppers when rotated in alignment with the hinge side of the door assembly machine.
    Type: Application
    Filed: September 16, 2017
    Publication date: March 21, 2019
    Applicant: Kval, Inc.
    Inventors: Gerald Kvalheim, Scott Bacon, David Schneider
  • Patent number: 7730608
    Abstract: A hinge feeder for feeding open hinges at a predetermined orientation to a receiver ready for use by an automatic door hinger. A dispenser is provided to hold a stack of closed hinges. The orientation of the top end and hinge joint of each hinge is sensed and the hinges sequentially dispensed at a uniform orientation, except for the pinhead location, to a rotator that rotates those hinges to bring their top ends to a desired side. The hinges are then opened by a leaf turner, fed to a stacker and the opened and oriented hinges then deposited in a stack by a stacker.
    Type: Grant
    Filed: January 26, 2006
    Date of Patent: June 8, 2010
    Assignee: Kval, Inc.
    Inventor: Andrew M. Kvalheim
  • Patent number: 7461674
    Abstract: A workstation having an assembly that includes a support for holding a jamb positioned with the face thereof at a site for mortising a hinge pocket in the face, a support for receiving and holding a door with its hinge side edge at the site adjacent to and parallel with the jamb for mortising operations at that edge and a cutting tool carried by the assembly operating to form hinge mortises in an edge of the door and the jamb face at the site. The support for the door is operable to pivot the door about the hinge side edge of the door from a first angle for forming hinge mortises in the hinge edge of a door having a bevel and a second angle for forming hinge mortises in the hinge edge of a door having no bevel.
    Type: Grant
    Filed: March 12, 2005
    Date of Patent: December 9, 2008
    Assignee: Kval, Inc.
    Inventors: George Y. Kameoka, Jerry A. Kvalheim
  • Patent number: 7422135
    Abstract: Apparatus for handling and feeding of groups of fasteners such as screws to an applicator or applicators for applying workpieces such as hinges to a base at a series of worksites. A dispenser at a charging site receives from a fastener feeder a charge of the groups of fasteners needed at all of the worksites of the series and then moves consecutively to each of the worksites to dispense a group of fasteners to an applicator at each worksite. A plurality of passageways extend from a fastener receiving side at the top to a fastener discharge side at the bottom of the dispenser, one passageway for each fastener to be dispensed. The discharge ends of the passageways register with receiving apertures at the applicator at each site. A series of gates at positions along the passageways selective hold and release groups of fasteners at their respective positions.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: September 9, 2008
    Assignee: Kval, Inc.
    Inventor: Andrew M. Kvalheim
  • Patent number: 7273157
    Abstract: A screw feeder adapted for rapid changeover of screw types. The feeder has a collator section having a floor with slots to collate random screws into rows and an enclosure about the floor for retaining random screws on the floor. The screws are collated by tilting the floor in the slotted direction to raise and lower the upstream end relative to the downstream end and are fed downstream along the slots into slots in a dispensing section. The collator section enclosure has a gate closure at the upstream end of the floor and the slots on the floor extend completely to the upstream end so that, with the gate open and the collator section oscillated to tilt the slots downward toward the upstream end, the screws in the slots will slide to the upstream end and out of the enclosure.
    Type: Grant
    Filed: October 8, 2003
    Date of Patent: September 25, 2007
    Assignee: Kval, Inc.
    Inventor: Andrew M. Kvalheim
  • Patent number: 6849168
    Abstract: An electrochemical microsensor package comprises a substrate matrix having a upper non-conductive layer and an adjacent lower non-conductive layer with a conductive trace or pad extending over an area therebetween. The conductive pad has integral therewith a projecting contact button that projects through and below the second non-conductive for making contact with external electrical contacts. A sensor electrode is positioned on the surface of the conductive pad toward the upper non-conductive layer and in electrical contact therewith. A well extends through the upper non-conductive layer to the upper surface of the electrode. The microsensor packages may be produced by electrodeposition of the conductive pad onto a conductive mandrel having depressions to form the contact button.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: February 1, 2005
    Assignee: KVAL, Inc.
    Inventors: William F. Crumly, Marc J. Madou
  • Patent number: 6398004
    Abstract: A method and apparatus for dispensing and feeding to a workstation elongated articles which are vertically stackable and have a substantially common longitudinal dimension. Articles of different shape are sequentially dispensing from separate dispensers onto a common pathway and fed to the workstation along that pathway. Articles of each shape are dispensed onto the pathway from a group of articles all having that shape in common and the articles dispensed from all the groups are fed sequentially along the common pathway in a downstream direction to the workstation. The dispensers are arranged in tandem in the pathway direction to the workstation and each is positioned above the pathway and oriented to dispense elongated articles with their longitudinal directions transverse to the pathway direction.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: June 4, 2002
    Assignee: KVAL, Inc.
    Inventor: Andrew M. Kvalheim
  • Patent number: 6162009
    Abstract: A method and apparatus for dispensing and feeding to a workstation elongated articles which are vertically stackable and have a substantially common longitudinal dimension. Articles of different shape are sequentially dispensed from separate dispensers onto a common pathway and fed to the workstation along that pathway. Articles of each shape are dispensed onto the pathway from a group of articles all having that shape in common and the articles dispensed from all the groups are fed sequentially along the common pathway in a downstream direction to the workstation. The dispensers are arranged in tandem in the pathway direction to the workstation and each is positioned above the pathway and oriented to dispense elongated articles with their longitudinal directions transverse to the pathway direction.
    Type: Grant
    Filed: November 17, 1998
    Date of Patent: December 19, 2000
    Assignee: Kval, Inc.
    Inventor: Andrew M. Kvalheim
  • Patent number: 6086317
    Abstract: A method and apparatus for inverting planate articles, such as door and window assemblies, which are supported from below in the horizontal plane, such as at a workstation for carrying out fabrication procedures from above the article. The article is tilted to a near vertical position at a tilting station, moved horizontally away to provide clearance from the tilting station, rotated a half turn about its vertical axis, returned to the tilting station and tilted back to the horizontal attitude with the original underside now on top. A tilt table that rotates around a transverse axis intermediate its length supports the article at the horizontal and tilts it to the near vertical attitude. A carriage receives the tilted article from the tilt conveyer and supports it at the near vertical by a turntable on the carriage having supports that engages the leading end and back side of the article.
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: July 11, 2000
    Assignee: KVAL Inc.
    Inventor: George Y. Kameoka
  • Patent number: 5536108
    Abstract: A method of making a joint, and the joint thereby produced, in which a first element comprised of low cohesion material is joined to another element of a structure, at a position at which opposed surfaces of the first element and the other element are adjacent and generally abutting, by driving at least one nail through the first element and into the other element at a nailing point at said position. Prior to driving the nail, a nailing cavity is formed adjacent the abutting surfaces at the nailing point that extends outwardly therefrom in the direction of the surfaces and that extends a substantial distance normal to the nail direction.
    Type: Grant
    Filed: February 27, 1995
    Date of Patent: July 16, 1996
    Assignee: Kval, Inc.
    Inventor: Andrew M. Kvalheim
  • Patent number: 5425473
    Abstract: A receptacle having a floor with parallel slots to receive and collate screws in a collating section and to queue them in a queuing section of the slots which has an intersecting escapement for depositing screw individually into receivers. The receptacle reciprocates to tip the slots downwardly in one slot direction and then the other. A retainer overlying the queuing section excludes loose screws and retains the queued screws in the slots during tipping. The retainer moves away from the slots when the receptacle is tipped downward toward the collating section to permit displaced screws to clear to the collating section. A gate at the leading edge of the retainer closes off the margin between the retainer and the floor to entry under the retainer of loose screws outside the slots. Screw conduits leading from the escapement reciprocate with the receptacle and connect with stationary receivers through articulations.
    Type: Grant
    Filed: July 1, 1994
    Date of Patent: June 20, 1995
    Assignee: Kval, Inc.
    Inventor: Andrew M. Kvalheim
  • Patent number: 5331732
    Abstract: A machine for attaching hinges to a door having a carriage movable and longtitudinally positionable along a door edge into which the following elements are integrated:1. A receiving block for receiving a hinge and screws and positioning them for application of the hinge to the door edge. The block contains apertures for receiving the screws and, subsequently, screw bits for driving the screws through the block. The block is movable from a hinge and screw receiving position to a hinge applying position.2. A hinge magazine for individually feeding hinges to the hinge block.3. A screw feeder for feeding screws individually to the hinge block.4. A screwdriver unit having individually operated screwdrivers each positioned to have its bit received by an aperture in the receiving block and each having an air motor for rotating its screw bit and an air piston for independently moving its screw bit forward to drive a screw.
    Type: Grant
    Filed: April 8, 1993
    Date of Patent: July 26, 1994
    Assignee: Kval, Inc.
    Inventor: Andrew M. Kvalheim
  • Patent number: 5222290
    Abstract: A machine for attaching hinges to a door and jamb member in an automatic or semi-automatic manner with the door edge and jamb face positioned in a generally vertical plane. The machine comprises a framework with a movable and longitudinally positionable carriage on which the following elements are integrated.1. An apparatus to hold a magazine of approximately 12 hinges (or butts) with fingers to move one hinge upward and position it on a receiving block, the fingers being retractable and movable downward to a ready position.2. A second apparatus to hopper feed screws from above apparatus number 1, wherein the screws move downward into apertures through the receiving block positioned for alignment with screw holes in the hinge leaves of the hinge positioned on the opposite side of the block.3. The third apparatus has means for rotating the loaded receiving block 90 degrees to a generally vertical plane, moving it against door edge and jamb face and engaging individual screwdriving motors to attach the hinge.
    Type: Grant
    Filed: July 29, 1992
    Date of Patent: June 29, 1993
    Assignee: Kval, Inc.
    Inventor: Andrew M. Kvalheim