| Patent Number |
Title Of Patent |
Date Issued |
| 6997026 |
Quick change metal stud to hemmed track roll forming system |
February 14, 2006 |
| An apparatus and method for selectively forming metal stud and track members from sheet material, the apparatus including a stud forming assembly capable of transforming the sheet material into a stud member as the material exits the stud forming assembly, and a track forming assembl |
| 6810570 |
Method of attaching a connector element to a duct flange |
November 2, 2004 |
| A duct assembly for transporting pressurized fluid therethrough. The assembly includes first and second duct sections. Each of the duct sections has sides extending between opposite ends. Each of the sides join an adjacent side and has a flange extending laterally outward from each e |
| 6471256 |
Companion duct flanges |
October 29, 2002 |
| A duct assembly made from multiple duct sections for transporting pressurized fluid therethrough which can be formed simply by laborers at a building site or elsewhere and has a strong joint resistant to leakage. The joint rigidizes each duct section and the duct assembly, permitting |
| 6345524 |
Rotatable head assembly for sheet metal coil straightener device |
February 12, 2002 |
| A straightener device for substantially removing the "coil set" from a sheet of coiled material including a base frame assembly and a head assembly rotatably mounted thereto, the head assembly including a pair of feed rollers and an idler roller, the pair of feed rollers being positi |
| 6292991 |
Apparatus and method for inserting corner members in channel-shaped flanges of a duct |
September 25, 2001 |
| Apparatus for inserting a corner member into channel-shaped flanges of a duct. The corner member has first and second legs. The duct includes longitudinally extending duct panels. The channel-shaped flanges of the duct extend laterally from at least one end of the duct panels. The ap |
| 6263557 |
Apparatus and method for inserting angle plates in channel shaped flanges of a duct |
July 24, 2001 |
| Apparatus for inserting a corner member into channel-shaped flanges of a duct. The corner member has first and second legs. The duct includes longitudinally extending duct panels. The channel-shaped flanges of the duct extend laterally from at least one end of the duct panels. The ap |
| 6081985 |
Method of inserting corner members in channel-shaped flanges of a duct |
July 4, 2000 |
| A method of inserting a corner member into channel-shaped flanges of a duct. The corner member has first and second legs. The duct includes longitudinally extending duct panels. The channel-shaped flanges of the duct extend laterally from at least one end of the duct channels. The me |
| 6047466 |
Apparatus and method for inserting angle plates in channel shaped flanges of a duct |
April 11, 2000 |
| Apparatus for removing a first angle plate from a stack of angle plates and inserting the first angle plate in channel shaped flanges of a duct. The first angle plate is the bottom-most angle plate of the stack before it is removed from the stack. The stack includes a second angle plate |
| 5462089 |
Sheet metal duct construction providing preliminary support for corner crimping |
October 31, 1995 |
| Rectangular sheet metal duct sections with integral outwardly-and-rearwardly formed end flanges are conventionally made from coiled strip metal to lengths provided by the width of the coil stock, ordinarily slightly less than five feet. As is common practice, outward-and-reverse faci |
| 5358013 |
Deflection-resistant safety flange for integrally-flanged duct sections |
October 25, 1994 |
| Modifying that type of integral flange outstanding from a sheet metal duct characterized by an outstanding first width of sheet metal and a second substantially equal width bent reversedly back to extend at 180.degree. from the first, in the present flange a sheet edge margin is bent |
| 5353616 |
Pittsburgh seam closer having single seaming roll |
October 11, 1994 |
| For closing Pittsburgh-type rectilinear seams, as in conventional sheet metal heating and air conditioning ducts. The present machine, with only a single seaming roll, closes seams through 45.degree. to 90.degree. on an advancing stroke, and burnishes them on the return stroke. The machi |
| 5163311 |
Rollformer for variable width edge profiles |
November 17, 1992 |
| A progressive rollformer machine is readily adjustable, without removal of rolls or use of spacers, to produce sheet metal workpiece margin flanges of variable depth. The machine includes a gear train housing having perpendicularly extending spindle shafts and idler gear shafts, and two |
| 4579375 |
Sheet metal duct system having integral transverse flanges |
April 1, 1986 |
| Integral transverse flanges on duct sections made up, for example, of two L-shaped work pieces, are readily assembled into permanent rigid section-joining frames. At the frame corners, the interfitted flanged ends of corner pieces are trapped, adjacent to the integral flange webs, behind |
| 4185487 |
Side access cleat former apparatus and method of use |
January 29, 1980 |
| A cleat-former machine, of the type which utilizes two rotating wipers, permits removal of formed cleats sideward from either end of the bending blade, and can be used with workpieces whose length exceeds that of the wipers. L-shaped side plates, which support between them a bending blad |
| 4038128 |
Insulation blanket shearing and applying machine for ductwork and the like |
July 26, 1977 |
| A compact machine for measuring, cutting and applying insulation blanket material onto sheet metal workpieces as they flow along a conveyorized lower line. The blanket material flows along an upper path. A flying shear mechanism, which travels a short distance along this path, is driven |
| 4024784 |
Rotary slitting shear having separately powered cutters |
May 24, 1977 |
| In that type of sheet metal shear having upper and lower rotary cutters to which power is supplied, both to cut a sheet of metal overhanging a work table edge and to propel the shear along the line of cut, unexpected capacity is achieved. The upper and lower cutters are powered each with |
