Class 72/370.26 - Polygon cross section (e.g., rectangular)

Subclass of Class 72 - Metal deforming
Definition: Process in which the tube* is deformed to produce
No. of patents: 19
Last issue date: 04/22/2008

Number	Title	Issue Date
7360384	Apparatus and method for hydroshearing and hydrotrimming for hydroforming die An apparatus and method for hydroshearing and hydrotrimming for a hydroforming die includes a cutting insert fixed relative to the hydroforming die. The apparatus and method also includes a disposable insert fixed relative to the hydroforming die. The apparatus and ...	04/22/2008
7257982	Apparatus for forming a beam member used as a torsion beam for the rear wheel suspension of an automobile An apparatus for forming a beam member for a torsion beam in a rear wheel suspension system of an automobile wherein said apparatus includes top and bottom dies for forming a U-shaped or V-shaped section and an extension section of the beam member, upper and lower p...	08/21/2007
7104104	Rectangular and square ducting systems A duct structure (50), includes lengths of square/rectangular duct (52) manufactured by pre-forming the duct in round cross-section (51) and then transforming the round cross-section into square and rectangular cross-sections utilizing expandabl...	09/12/2006
7104099	Center support punch assembly for hydroforming die A center support punch assembly for a hydroforming die includes a center support member for fixed attachment to a die. The center support punch assembly also includes a button disposed about and space from the center support member for fixed attachment to the die. T...	09/12/2006
6902651	Tube bank structure, and flow tube producing method The invention provides tube bank structure and a method of manufacturing a flow tube, which can improve the stabilization of the flow of stock in the tube bank of the headbox of a papermaking machine and prevent the development of turbulence and uneven concentration...	06/07/2005
6865918	Tube compressing roller die A tube reduction apparatus uses a pair of plates, each of the plates providing an X-shaped aperture therein. The X-shaped aperture comprises two pairs of opposing slots, and each slot provides a pair of opposing grooves. The grooves are oriented at right angles to t...	03/15/2005
6712575	Process for manufacturing a can with a polygonal cross section and a can with a polygonal cross section A process for manufacturing a can with a polygonal cross-section and a can with a polygonal cross-section, the process comprising the steps of milling the cylindrical lateral wall of a tubular body (10), providing said wall with a plurality of circumferential...	03/30/2004
6651477	Process for forming tubular components A process of producing from an elongate tube a tubular structural component having a first longitudinal section integrally connected to a second longitudinal section, the second section being located at the end of the tube and being of a desired cross-sec...	11/25/2003
6349521	Vehicle bumper beam with non-uniform cross section A method includes rollforming and sweeping a tubular beam with a constant longitudinal cross section, and then reforming the tubular beam 10 to form a tubular beam having a non-constant cross section. The non-constant cross sections have specific shapes c...	02/26/2002
6325953	Plastic working method and plastic working machine There is provided a plastic working machine for plastically working a tube by employing tube holding and spinning means for holding and spinning the plastically workable tube around the axis of the tube and first and second plastic working tools which fac...	12/04/2001
6192978	Micro-multiport (MMP) tubing with improved metallurgical strength and method for making said tubing This invention is a process for making micro-multiport tubing for use in automobile air conditioner heat exchangers. The tubing is a flat body with a row of side-by-side passageways, which are separated by upright webs. Processing of this tubing involves ...	02/27/2001
5956847	Method for manufacturing a fluid coupling apparatus A method for manufacturing a fluid coupling apparatus for communicating fluid between a fluid hose and a heat exchanger. The present invention provides an inexpensive method for producing an integral fluid coupling apparatus that minimizes and eliminates ...	09/28/1999
5855137	Method of manufacturing a reservoir tube Reformation of a round tube to a tube with a selected polygonal segment is achieved by supporting the round tube on a mandrel having rounded corners that mate with the tube's inside diameter. The mandrel is otherwise provided in the resultant polygonal sh...	01/05/1999
5467704	Waste container reformer and method for reforming waste containers A waste container reformer, for reforming generally disk-shaped compacted waste containers into prismatic forms, sequentially presses the sides of the waste container into a prism with a 45°-90°-45° triangular base so that when it is placed adjacent to...	11/21/1995
5040399	Method of fabricating box section from steel with walls that differ in thickness A method of fabricating box section from steel with walls of non-uniform thickness along its periphery. A starting product in the form of round tubing with a wall that is uniformly thick along its circumference is manufactured and rolled into box section ...	08/20/1991
4829803	Method of forming box-like frame members A box-like frame member is formed by compressing an internally-pressurized tubular blank within a die having a cavity conforming to the final box-like cross section desired for the product, and increasing the pressure to exceed the yield limit of the wall...	05/16/1989
4744237	Method of forming box-like frame members A box-like frame member is formed by compressing an internally-pressurized tubular blank within a die having a cavity conforming to the final box-like cross section desired for the product, and increasing the pressure to exceed the yield limit of the wall...	05/17/1988
4186825	Brake adjuster having reshapable member drawn through a die A brake adjuster providing compensation for brake wear. Fundamentally, the invention includes a casing attached to a brake housing and maintaining a spring follower therewithin. A shaft or pin is connected to the pressure plate of a brake assembly and is ...	02/05/1980
3977227	Method of cold extruding ductile cast iron tube Annular articles are produced by cold extruding a tubular ductile cast iron piece through a female die to desirably change the shape of at least an axial portion of the piece. The invention is based on the discovery that the nodular carbon content of duct...	08/31/1976

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Class 72/370.26 - Polygon cross section (e.g., rectangular)