Patents Assigned to MiTek Holdings, Inc.
  • Patent number: 6330963
    Abstract: Apparatus for connecting wood members with a connector plate segmented from a continuous strip of connector plates. The connector plates have integral nails extending from one face of the plate. The apparatus includes a feeder for feeding the strip forward to a position where the connector plate is segmented from the strip. A driver drives the segmented plate into the wood members. The apparatus has a table for the emplacement of the wood members in a pattern for being fastened together. The table is mounted for movement between a position out from under the driver for emplacement of the wood members and a position under the driver for the driving of a segmented connected plate down for penetration of its nails into the wood members. The table also has slots and locating stops to facilitate holding the wood member is the pre-selected pattern on the table.
    Type: Grant
    Filed: October 18, 1999
    Date of Patent: December 18, 2001
    Assignee: MiTek Holdings, Inc.
    Inventors: Marc Olden, Kathy Liuhui Jin
  • Patent number: 6317980
    Abstract: A method of constructing trusses includes providing a laser jigging system that projects the location of the jigging hardware so that an operator can easily, quickly, and precisely position the jigging hardware on the work-surface prior to positioning any truss members on the work-surface is described. More particularly, the system projects puck and other jigging hardware alignment or location guides on the table work-surface. With the alignment guides projected on the table, the pucks and other jigging hardware are located in alignment with the projected guides, and secured to the table. The truss members are located on the table in accordance with the pattern defined by the jigging, and connector plates are then engaged with the truss members.
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: November 20, 2001
    Assignee: MiTek Holdings, Inc.
    Inventor: Carl Edward Buck, III
  • Patent number: 6260263
    Abstract: Truss table assembly for assembling a truss without manual flipping of the truss. In one embodiment, the truss table assembly includes two truss tables and two flipper arms. Each truss table has a worksurface that is configured to support the truss members as nailing plates are engaged to the truss members. The flipper arms are configured to flip the truss from a truss member first surface in contact with the worksurfaces to a second surface in contact with the worksurfaces so that nailing plates may be positioned over the truss member second surface and engaged to the truss members.
    Type: Grant
    Filed: October 6, 1997
    Date of Patent: July 17, 2001
    Assignee: MiTek Holdings, Inc.
    Inventor: Christopher L. Haase
  • Patent number: 6260327
    Abstract: An elongate structural member of a steel truss. The structural member includes a web, a flange and a cap portion. The web includes a first web section and a second web section. The second web section extends angularly outwardly from a first surface of the web at a first longitudinal edge of the first web section. The flange extends laterally outwardly from the first surface of the web at a second longitudinal edge of the first web section. The flange is configured to be substantially perpendicular to the first web section. The cap portion extends outwardly from a second surface of the web at a distal longitudinal edge of the second web section. The cap portion is configured to be substantially parallel to the flange.
    Type: Grant
    Filed: July 19, 1999
    Date of Patent: July 17, 2001
    Assignee: MiTek Holdings, Inc.
    Inventor: Michael A. Pellock
  • Patent number: 6256862
    Abstract: A coil advance drive apparatus for connector plate coils is described. The coil advance drive apparatus includes a support structure, a motor coupled to the support structure, at least one elongate coil support member coupled to the support structure, and at least one drive wheel operatively coupled to the motor Each drive wheel is configured to engage the connector plate coil stock. The coil support member includes a plurality of grooves extending longitudinally in one surface of the support member The grooves are configured to receive the pre-punched teeth extending from the connector plate coil stock. The drive wheel includes a plurality of teeth extending from a circumferential surface of the drive wheel. The teeth are configured to engage the open slots in the connector plate coil stock so as to move the coil stock along the support member as the drive wheel rotates. An elongate coil guide cover is coupled to the surface of each coil support member above the grooves.
    Type: Grant
    Filed: July 2, 1999
    Date of Patent: July 10, 2001
    Assignee: MiTek Holdings, Inc.
    Inventors: Michael Marc Olden, Kathy Liuhui Jin
  • Patent number: 6219975
    Abstract: A truss, having an integral hold down strap, which can be attached to a wall of a structure. The truss contains an upper and lower chord and typically contains web members that extend between the upper and lower chords to provide strength and rigidity. The lower and upper chord converge at the heel of the truss and are connected by at least one nailing plate. The hold down strap is an elongate piece of sheet metal which is smooth and free of teeth, and has a first portion which contains two opposing flanges that are bent such that the first portion has a generally U-shaped cross section. The hold down strap also has a second portion sized to extend from the first portion and into engagement with one of the other structural components of a wall. The first portion of the hold down strap is sized to engage the end surface of the lower chord with the two opposing flanges engaging the side surfaces of the lower chord.
    Type: Grant
    Filed: May 15, 1998
    Date of Patent: April 24, 2001
    Assignee: MiTek Holdings, Inc.
    Inventor: Michael Marc Olden
  • Patent number: 6212849
    Abstract: A shear panel configured to fit between adjacent studs in a stud wall is described. The shear panel in one embodiment of the present invention includes an elongate I-shaped member, a top shear cap, and a bottom shear cap. The elongate I-shaped member includes a central region and two opposing flanges extending longitudinally along opposing outer edges of the central region. The elongate I-shaped member is configured to fit between adjacent studs with the flanges in face to face contact with the faces of the adjacent studs. Each shear cap includes an elongate flat section, a first elongate leg section, and a second elongate leg section. The first and second leg sections extend perpendicularly from the elongate flat section, and the leg sections are configured so that an end of the central region of the I-shaped member fits between the legs.
    Type: Grant
    Filed: January 4, 1999
    Date of Patent: April 10, 2001
    Assignee: MiTek Holdings, Inc.
    Inventor: Michael A. Pellock
  • Patent number: 6170688
    Abstract: In one aspect, the present invention relates to a crate subassembly including four side units, and each side unit has a top cord, a bottom cord, and vertical cords extending between and secured to the top and bottom cords. The top cord and bottom cord of each side unit extend substantially parallel to each other, and each side unit further includes a diagonal cord extending from and connected to the top and bottom cords. Connector plates are located to connect the respective adjacent vertical cords of each side unit, as well as to secure each side unit cord. When it is desired to form a crate, and by simply separating opposing side units, the subassembly is opened. When opening, the connector plates on the inner surface of the subassembly flex, or bend, and the connector plates have sufficient rigidity so that once opened, the subassembly does not close on itself during handling. With the subassembly in the open condition, the subassembly is readily secured to a pallet using, for example, screws.
    Type: Grant
    Filed: May 6, 1997
    Date of Patent: January 9, 2001
    Assignee: MiTek Holdings, Inc.
    Inventor: Michael Marc Olden
  • Patent number: 6145684
    Abstract: In one aspect, the present invention relates to a crate subassembly including four support cords with connector plates securing respective adjacent cords. More particularly, the connector plates extend over the interfaces between adjacent cords, and the connector plates secure adjacent cords together so as to prevent relative lateral movement between adjacent cords yet allow relative rotational movement of the cords as described below. By simply separating opposing cords, the subassembly can be easily and quickly opened. Specifically, the connector plates flex, or bend, and the connector plates have sufficient rigidity so that once opened, the subassembly does not close on itself during handling. Also, notches are formed between adjacent cords, and these notches are utilized when forming a crate as described below. To form a crate, and in an exemplary configuration, three subassemblies are positioned in a spaced relationship, and girders are positioned to extend through respective notches in each subassembly.
    Type: Grant
    Filed: May 7, 1997
    Date of Patent: November 14, 2000
    Assignee: MiTek Holdings, Inc.
    Inventor: Michael Marc Olden
  • Patent number: 6134775
    Abstract: A device for applying nailing plates to the ends of wooden ties includes a plate feeder for applying nailing plates to the generally vertically-oriented ends of a wooden tie horizontally disposed therein. The plate feeder includes a frame on each side for holding a nailing plate in a generally vertical orientation adjacent one of the ends of the wooden tie, a dispenser associated with each frame for dispensing nailing plates to the frame; and a piston on each side actuable to partially press a nailing plate held in the frame into the ends of the wooden tie. A tie feeder for conveys ties to the plate feeder. There is also a press for pressing nailing plates partially embedded in the ends of a wooden tie, into the ends of the wooden tie. A conveyor conveys wooden ties from the plate feeder to the press.
    Type: Grant
    Filed: June 3, 1997
    Date of Patent: October 24, 2000
    Assignee: MiTek Holdings, Inc.
    Inventor: Adolfo Castillo
  • Patent number: 6112968
    Abstract: A connector plate application apparatus presses connector plates into wood members to connect them together for forming wood frames, truss components and the like. Connector plates are supplied to the apparatus in the form of a strip which is pre-punched with nailing teeth. The connector plates are sheared from the strip and driven into the wood members by drivers. The strip is fed forward automatically by a strip feed which engages the strip in openings left by punching the nailing teeth. Loading of a new strip of connector plates is facilitated by an alignment mechanism which allows non-visual alignment of the strip with the strip feed so that the strip feed engages the strip in the openings.
    Type: Grant
    Filed: January 14, 2000
    Date of Patent: September 5, 2000
    Assignee: MiTek Holdings, Inc.
    Inventors: Kathy Liuhui Jin, Marc Olden
  • Patent number: 6079325
    Abstract: Trackless gantry press apparatus includes, in one embodiment, a plurality of truss setup tables configured to form a row of spaced truss setup tables. Each table includes wheel guides coupled at opposing ends and extending the width of the table. The guides are configured to be in substantial alignment with the guides coupled to adjacent tables. The apparatus also includes a press assembly for pressing nailing plates into truss members. The press assembly includes a substantially cylindrically shaped roller movably coupled to a substantially inverted U-shaped frame. The press assembly also includes at least four support wheels and at least four reaction pressure wheels coupled to each opposite end of the frame and configured so that at least three support wheels on each end of the press assembly are in contact with the wheel guides at all times as the press assembly traverses the spaces between the spaced setup tables.
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: June 27, 2000
    Assignee: MiTek Holdings, Inc.
    Inventors: Robert A. LePoire, Jose A. Andrade, Murray Martin
  • Patent number: 6048165
    Abstract: The invention relates to an apparatus for packing connector plates or the like. The apparatus comprises a horizontal conveyor (V) for conveying connector plates (N) to a stacking station (P) at the end of the horizontal conveyor (V) with the plates oriented so that the teeth point substantially upward. A turning conveyor (K) conveys connector plates (N) to the stacking station (P) in an inverted orientation so that nested pairs of connector plates are formed. The horizontal conveyor (V) is in the same longitudinal line with the turning conveyor (K) and partly inside the turning conveyor. The turning conveyor (K) includes two substantially vertical support walls (4) which are provided for rotation around a horizontal axle (6), and a support mechanism (5) attached therebetween.
    Type: Grant
    Filed: January 30, 1998
    Date of Patent: April 11, 2000
    Assignee: MiTek Holdings, Inc.
    Inventor: Markku Karhumaki
  • Patent number: 5996303
    Abstract: A truss that, in one embodiment, includes alternating metal webs in non-critical portions of the truss is described. The truss includes two chords vertically spaced apart and parallel to each other, and a plurality of metal web members extending between the two chords and coupled to the vertical surfaces of the chords. The truss also includes at least two critical portions and at least one non-critical portion. The critical portions of the truss are configured so that the metal webs coupled to each side of the truss are aligned, and each metal web coupled to one side of the truss has a corresponding metal web coupled to the other side of the truss. The non-critical portions of the truss are configured so that the metal webs coupled to one side of the truss do not have a corresponding aligned metal web coupled to the opposite side of the truss.
    Type: Grant
    Filed: February 18, 1999
    Date of Patent: December 7, 1999
    Assignee: MiTek Holdings, Inc.
    Inventor: Michael A. Pellock
  • Patent number: 5970678
    Abstract: A T-brace for a web member of a steel truss is described. The T-brace includes an elongate base portion, opposing side portions depending from the side edges of the base section, and a first and a second top portion depending from the side portions. The top portions are configured to substantially overlap and to be parallel to the base portion. The side portions of the T-brace are configured to taper from the base portion to the top portions. The T-brace is configured to attach to the central channel portion of the web and be attached by screws penetrating the web and the T-brace. The length of the T-brace is approximately equal to the length of the web. The T-brace is also configured so that when the T-brace is installed in the central channel of a web, and the web is installed in a truss, the T-brace does not extend outside the plane of the truss.
    Type: Grant
    Filed: May 27, 1998
    Date of Patent: October 26, 1999
    Assignee: MiTek Holdings, Inc.
    Inventors: Michael A. Pellock, Timothy M. Liescheidt
  • Patent number: 5946879
    Abstract: A brace for mounting on a web member in a generally planar truss to resist flexing of the web member out of the plane of the wooden truss. The brace is an elongate metal member comprising a flange adapted to overlie a face of the web member, and a body, extending from the flange, adapted to lie substantially within the thickness of the web member. A plurality of teeth may be integrally formed in the flange to embed in the web member and mount the brace thereto. Alternatively, holes may be provided on the flange for mounting the brace. The brace, when mounted on a web member, helps reduce bending and flexing of the web member, out of the plane of the truss, and trusses that include the brace do not need cross-bracing.
    Type: Grant
    Filed: April 24, 1997
    Date of Patent: September 7, 1999
    Assignee: Mitek Holdings, Inc.
    Inventor: Michael A. Pellock
  • Patent number: 5933957
    Abstract: Methods and apparatus for assembling a truss are described. In one embodiment, the truss table apparatus includes a truss table and a roller assembly. The truss table includes two guides and a worksurface which supports the truss members as nailing plates are pressed into the truss members. The guides are coupled to opposing sides of the truss table and are substantially C-shaped. The roller assembly is movably coupled to the truss table guides and includes a roller for pressing the nailing plates into the truss members. The roller assembly also includes a plurality of drive wheels that rest on the truss table guides to move the roller assembly relative to the truss table. The roller assembly further includes a plurality of pressure wheels rotatably coupled to the truss table to maintain the proper spacing between the roller and the truss table worksurface during pressing of the nailing plates.
    Type: Grant
    Filed: October 15, 1997
    Date of Patent: August 10, 1999
    Assignee: MiTek Holdings, Inc.
    Inventor: Christopher L. Haase
  • Patent number: 5899042
    Abstract: A truss cross brace apparatus is described. The truss cross brace apparatus includes an elongated channel member having a U-shaped cross section. The channel member includes a base web and opposing side webs depending from the base web. An engaging portion extends from each end of the channel member. Each engaging portion includes at least one integrally formed tooth projecting from the bottom surface. The engaging portions are adapted to overlie the upper surfaces of the top chord of adjacent trusses, with the integral tooth embedded therein, such that an angle formed by the channel member and a top chord is about 45 degrees. A tab extends from a side web at one end and from the opposing web at the other end of the channel member. Each tab includes at least one integrally formed tooth projecting from the tab. Each tab is adapted to be bent to overlie the side surface of the top chord of adjacent trusses with the integral tooth embedded therein.
    Type: Grant
    Filed: March 12, 1998
    Date of Patent: May 4, 1999
    Assignee: MiTek Holdings, Inc.
    Inventor: Michael A. Pellock
  • Patent number: 5884448
    Abstract: A truss spacer and support device for installation between the chords of adjacent trusses includes an elongate, generally U-shaped channel member. There is a tongue on each end having at least one nail integrally formed thereon which is adapted to overlie the top of a chord with the integral nail embedded therein. Tabs extend from each side of the channel member at each end with at least one nail integrally formed thereon. The tabs are raked inwardly toward the opposite end sufficiently that the ends of the nails do not extend past the ends of the channel member sufficiently to interfere with positioning the device between the chord members of adjacent trusses. The tabs can be bent to overlie the sides of the chord, with their integral nails embedded therein. The devices are employed to accurately space and support trusses during construction of a structure, and to provide added support against in-service loads.
    Type: Grant
    Filed: August 27, 1996
    Date of Patent: March 23, 1999
    Assignee: MiTek Holdings, Inc.
    Inventor: Michael A. Pellock
  • Patent number: 5857306
    Abstract: An assembly of trusses fabricated of sheet metal wherein the lower chord of a supported truss is connected to the lower chord of a supporting truss by a connector formed of sheet metal with the supported truss at an angle to the supporting truss, and connectors for making the connection.
    Type: Grant
    Filed: April 2, 1997
    Date of Patent: January 12, 1999
    Assignee: MiTek Holdings, Inc.
    Inventor: Michael A. Pellock