Patents Assigned to Allied Tube & Conduit Corporation
  • Patent number: 4600179
    Abstract: A module for use in forming a barrier such as a fence. The module includes a pair of aligned tubular rails having facing inside walls with a plurality of spaced apertures therealong and with respective apertures in each inside wall corresponding to one another and forming pairs. A bushing formed of a resilient material lines each of the apertures. The module further includes a plurality of spaced metallic rungs extending between the rails with each rung having end portions received by a respective pair of the apertures in the inside walls so that the rung end portions extend inside the respective rails. A retainer is held in each rail end portion and it includes an abutment wall positioned for bearing on one of the rung end portions and an attachment wall positioned adjacent the rail end. A method of assembly of the module is also set forth.
    Type: Grant
    Filed: April 16, 1985
    Date of Patent: July 15, 1986
    Assignee: Allied Tube & Conduit Corporation
    Inventor: Charles A. Willetts
  • Patent number: 4593550
    Abstract: An improvement in a continuous rolling mill for forming flat steel strip into tubing. The improvement is a strip preparation station including upper and lower composite roller systems. Each system has end rollers which define a pass path for the strip. The lower end rollers have a support surface for engaging the lower surface of the strip and an outer pocket with a lower transition surface extending between the support surface and the outer pocket. Each of the upper end rollers has an engagement surface for contacting the upper strip surface and an outer flange which terminates below the level of the support surface and extends into the pocket. Each upper end roller has a bevelled working surface adjoining the engagement surface and overlying at least a portion of the transition surface and a portion of the support surface for cold working the irregularities of the strip. A method of preparing a strip for formation into a tube in a continuous rolling mill is also disclosed.
    Type: Grant
    Filed: July 15, 1985
    Date of Patent: June 10, 1986
    Assignee: Allied Tube & Conduit Corporation
    Inventor: Lucid L. Byrd
  • Patent number: 4592574
    Abstract: A conduit coupling assembly for connecting the end portions of two lengths of conduit in coaxial, abutting relationship. The coupling assembly includes an abutment ring, an outer coupling, retainer means and resilient means. The ring has an internal thread sized for threading onto the end portion of one of the lengths of conduit. The coupling has a first end and a second end with a bore extending therebetween sized to slidably, rotatably receive the abutment ring. The coupling first end has an inside dimension smaller than an outside dimension of the ring so that the ring is unable to move past the first end, and the first end is provided with an internal thread sized for threading onto the ends of the lengths of conduit. The retainer means is carried by the outer coupling adjacent its second end for preventing escape of the ring from the bore.
    Type: Grant
    Filed: November 28, 1983
    Date of Patent: June 3, 1986
    Assignee: Allied Tube & Conduit Corporation
    Inventors: Lawrence P. Vollmuth, Robert J. Porthan
  • Patent number: 4549756
    Abstract: A conduit coupling assembly for connecting the end portions of a pair of lengths of tubular conduit in coaxial, abutting relationship. Each end portion has external threads of the same size. The coupling assembly includes an abutment ring, locking means, and an outer coupling. The abutment ring has an internal thread sized for threading onto the end portion of one of the lengths of conduit, while the locking means prevents unthreading of the abutment ring once it is installed. The outer coupling has a first end and a second end with a bore extending therebetween sized to slidably, rotatably receive the abutment ring. The inside dimensions of the coupling ends are smaller than an outside dimension of the ring so that the ring is unable to move past the coupling ends.
    Type: Grant
    Filed: May 31, 1983
    Date of Patent: October 29, 1985
    Assignee: Allied Tube & Conduit Corporation
    Inventor: Raffaele Basile
  • Patent number: 4547004
    Abstract: A coupling for connecting substantially identical external threaded ends of tubular conduits and the like in end-to-end relation, the coupling including a first or outer coupling member having an internal chamber and adapted to be threaded onto the threaded end of either of the conduits to be connected, and a second coupling member disposed within the chamber in the outer coupling member and adapted for threaded engagement with the threaded end of either conduit. The first and second coupling members are adapted to be threaded onto a selected one of the conduits in a manner enabling an axial alignment of the conduits by relative lateral movement therebetween after which the outer coupling member is threaded onto the other of the conduits to draw the adjacent ends of the conduits into abutting end-to-end relation.
    Type: Grant
    Filed: December 10, 1982
    Date of Patent: October 15, 1985
    Assignee: Allied Tube & Conduit Corporation
    Inventor: Harold D. Goldberg
  • Patent number: 4458376
    Abstract: An assembly for wiping a surface of a continuously moving strip, such as a metal strip, includes a holder, a housing that is slid into and from the holder having an elongated channel extending across the pathway of the strip and facing the strip, an elongated bladder retained within the channel, a wiper blade removably attached to the strip for contacting and wiping the strip and means to inflate the bladder to determine the pressure of the wiper blade against the strip.
    Type: Grant
    Filed: September 3, 1982
    Date of Patent: July 10, 1984
    Assignee: Allied Tube & Conduit Corporation
    Inventor: Leopold S. Sitko
  • Patent number: 4441238
    Abstract: Apparatus is provided for the continuous production of tubing from steel strip. The formed tubing is continuously advanced along a straight-line path through polishing and buffing units to provide a smooth lustrous finish to the tubing, and through a coating chamber in which the tubing is coated with a polymer coating to prevent tarnishing of the lustrous polished surface. The finished tubing has a surface which is suitble for decorative applications such as furniture or the like.
    Type: Grant
    Filed: February 9, 1981
    Date of Patent: April 10, 1984
    Assignee: Allied Tube & Conduit Corporation
    Inventors: Humberto Hijuelos, Giulio Scartozzi, Lawrence P. Vollmuth, Raffaele Basile
  • Patent number: 4344381
    Abstract: Apparatus for electrostatically coating an elongated object of indefinite length which is aligned with the straight line path of the elongated object in a continuous manufacturing and finishing process. Electrostatic applicators are mounted to direct the coating into a substantially closed chamber at a portion of the elongated object passing therethrough. To substantially eliminate the explosive hazard occasioned by the use of an organic solvent-based coating material in the presence of electrical equipment, a combustibly inert atmosphere is maintained in the chamber and in an exhaust system leading therefrom. To maintain the electrostatic field, the coating chamber and associated coating equipment must be electrically isolated from ground.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: August 17, 1982
    Assignee: Allied Tube & Conduit Corporation
    Inventors: Arthur E. Ostrowski, Joseph M. Polich
  • Patent number: 4258936
    Abstract: A coupling for connecting tubular conduits and the like in end-to-end relation, the connected ends of the conduits having identical external threads formed thereon. The coupling includes inner and outer coupling elements, the inner of which is longitudinally moveable within an internal bore in the outer and both of which have threaded internal bores which enable both elements to be threaded onto either of the conduit ends to a position enabling alignment of the conduits by relative lateral movement therebetween after which the outer coupling element may be threaded onto the other of the conduits so as to draw the adjacent ends of the conduits into aligned abutting relation. In an alternative embodiment, the inner coupling element may be moved longitudinally onto the threaded end of the conduit without requiring threading thereon, after which the inner coupling element may be removed by unthreading.
    Type: Grant
    Filed: January 7, 1980
    Date of Patent: March 31, 1981
    Assignee: Allied Tube & Conduit Corporation
    Inventor: Harold D. Goldberg
  • Patent number: 4124932
    Abstract: Steel strip is continuously roll-formed into tubular shape, seam-welded and coated with zinc in a galvanizing bath. The coated tubing is promptly cooled by a prequench flow of cooling water flowing in the direction of movement of the tubing, thus superficially hardening the zinc. Water is pumped into the prequench zone through passageways arranged radial to the tubing and at an angle between 20.degree. and 40.degree. to the direction of movement. Final cooling is effected by immersion in a water bath. Heavier and smoother zinc coatings can be applied as a result.
    Type: Grant
    Filed: September 1, 1977
    Date of Patent: November 14, 1978
    Assignee: Allied Tube & Conduit Corporation
    Inventors: Arthur H. Rogove, Augusto H. Hijuelos
  • Patent number: 4081649
    Abstract: A tube mill which employs circular rotating electrodes for welding the edge seam along with means within the continuous tube for rolling the welded seam. An arm extends into the tube and carriers a rotating roller that contacts the seam just downstream from the point where welding occurs. A connector affixed to the arm extends upward through the region between the converging edges of the strip to a pivot pin. An air cylinder is arranged to rock the arm about the pivot pin and force the roller upward against the undersurface of the hot seam close to the circular welding electrodes to produce a smooth surface. The upper section of the arm carries a pair of rotatable discs of different thicknesses which guide the converging edges of the strip into proper position for welding. The arm carries a pipe which directs fluid past the roller to blow weld spatter downstream while simultaneously cooling the roller.
    Type: Grant
    Filed: August 4, 1976
    Date of Patent: March 28, 1978
    Assignee: Allied Tube & Conduit Corporation
    Inventor: Frank Tonkovich
  • Patent number: 4005593
    Abstract: A bending clamp is disclosed for use with a pipe bending apparatus having a generally arcuate shaped bending shoe about which a tubular pipe may be bent. The bending clamp is cooperable with the bending shoe to retain the pipe against the bending surface of the bending shoe so as to prevent wrinkling, flattening or collapse of the pipe during bending of the pipe.
    Type: Grant
    Filed: August 20, 1975
    Date of Patent: February 1, 1977
    Assignee: Allied Tube & Conduit Corporation
    Inventor: Harold D. Goldberg
  • Patent number: 3965551
    Abstract: Lengths of polymer-coated tubing are continuously produced from steel strip by roll-forming and welding at a fast rate of speed. The welded tubing is sized, cleaned and heated to raise its temperature to that desired for applying a polymeric coating. After coating, the tubing is heated to a desired baking temperature and then cooled. The tubing is unsupported from a location upstream of the coating station until cooled. Elongated endless belts grip the tubing over a longitudinal distance of at least about 2 feet and pull the tubing in a controlled manner to maintain the tubing in precise spatial location throughout its heating, coating and baking.
    Type: Grant
    Filed: August 14, 1975
    Date of Patent: June 29, 1976
    Assignee: Allied Tube & Conduit Corporation
    Inventor: Arthur E. Ostrowski