By Use Of Reciprocating Perforator Patents (Class 29/6.2)
  • Patent number: 9909223
    Abstract: Provided are methods for producing expanded metal structures with solid margin separated by aperture regions, and applications thereof. The solid and aperture regions are formed by controlling the actuation of the punch sequence, including by the use of actuated and non-actuated regions along the metal sheet. By way of non-limiting examples, the solid margins facilitate uniform connections to form electrodes, e.g., for use in an electrolytic cell for a water purification system, or electrochemical processes in general, and they facilitate indexing of the expanded metal for downstream processing.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: March 6, 2018
    Inventor: Byron Duvon McGuire
  • Patent number: 9724855
    Abstract: In the present invention, when synchronization is lost due to backlash, and deviation between the rotational phases of a first processing roll and a second processing roll occurs, deviation between the rotational phases of dummy rotating bodies also occurs, and dummy blade parts of the dummy rotating bodies interfere with each other before blade parts of cutting blades of the first processing roll and the second processing roll (40) interfere with each other. Thus, interference between the blade parts is prevented.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: August 8, 2017
    Assignee: Toyota Shatai Kabushiki Kaisha
    Inventors: Tomoyuki Takamura, Keiji Hashimoto, Tomio Kinoshita, Manabu Kinoshita
  • Patent number: 9709252
    Abstract: A backlight unit includes a side portion having a truss structure, another side portion, and a light source between the side portions.
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: July 18, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Se Ki Park, Su Chang Ryu
  • Patent number: 8578577
    Abstract: An apparatus for expanding metal and forming tubing combines two metal-forming operations into a single process. Tubing, such as that used for filters, is desirably expanded so that air or liquid may pass thru “diamonds” formed in the tubing. Expanding metal and forming tubing is accomplished in a single, continuous process by first slitting and expanding the metal, and then locking its seams to form a spiral pipe. This avoids depending on vendors for delivery of expanded metal at fluctuating prices, eliminates intermediate steps of handling the coils, and eliminates rusting while the expanded steel coils await formation into tubing. Tubing made from expanded metal may be used for air filters, oil filters, water filters, separators and other types of filters. Double-wall HVAC ducting systems or silencers can also use expanded material for reducing heat transfer and noise.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: November 12, 2013
    Assignee: Helix International, Inc.
    Inventor: Wilhelmus P. H. Castricum
  • Patent number: 8578576
    Abstract: An apparatus for expanding metal and forming tubing combines two metal-forming operations into a single process. Tubing, such as that used for filters, is desirably expanded so that air or liquid may pass thru “diamonds” formed in the tubing. Expanding metal and forming tubing is accomplished in a single, continuous process by first slitting and expanding the metal, and then locking its seams to form a spiral pipe. This avoids depending on vendors for delivery of expanded metal at fluctuating prices, eliminates intermediate steps of handling the coils, and eliminates rusting while the expanded steel coils await formation into tubing. Tubing made from expanded metal may be used for air filters, oil filters, water filters, separators and other types of filters. Double-wall HVAC ducting systems or silencers can also use expanded material for reducing heat transfer and noise.
    Type: Grant
    Filed: March 17, 2008
    Date of Patent: November 12, 2013
    Assignee: Helix International, Inc.
    Inventor: Wilhelmus P. H. Castricum
  • Patent number: 8479395
    Abstract: A method for reinforcing, baffling or sealing a vehicle structure, comprising the steps of providing one or more materials having a horizontal axis, at least one terminating edge, and an initial length, forming openings in the one or more materials, and applying the one or more materials to a location requiring reinforcement, baffling, sealing or any combination thereof.
    Type: Grant
    Filed: April 8, 2009
    Date of Patent: July 9, 2013
    Assignee: Zephyros, Inc.
    Inventors: Dean Quaderer, Erin White, Gary Vanlerberghe
  • Patent number: 8146218
    Abstract: Method and apparatus for continuously forming a one-piece expanded metal gutter cover having at least one solid edge. The method involves feeding a continuous web of solid metal along a continuous path, expanding the continuous web as it is fed along the continuous path, profiling a solid edge margin of the web as it is fed along the continuous path, and cutting the continuous web transversely of the web at intervals along the web to form separate gutter covers.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: April 3, 2012
    Inventors: James E. Ealer, Sr., James E. Ealer, Jr.
  • Patent number: 8087134
    Abstract: A process for making a heat exchanger comprising extruding a profile (1) composed of a number of parallel tubes (2) and web-like portions (3) interconnecting said tubes (2), removing part of the connection made by the web-like portions (3) and expanding the extruded product in a direction perpendicular to the longitudinal direction of the tubes (2) and providing connecting means for allowing a fluid to flow through said tubes.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: January 3, 2012
    Assignee: Norsk Hydro ASA
    Inventor: Ed Morley
  • Patent number: 7934300
    Abstract: A method for producing expanded metal profiles, consisting of subjecting a metal strip of width less than the development of the profile to be produced to the following operations: —forming longitudinal slits in at least that longitudinal band which is to form the central web of the profile, —bending the edges of the slits, —profiling said strip, —transversely stretching that band containing the slits, —pressing areas of said central web in correspondence with said stretched band to displace them external to the plane of said web, characterised by subjecting the bent edges to drawing to obtain radiused edging having the tangent to the free edge forming an angle not less than 90° to the surface of the strip.
    Type: Grant
    Filed: June 14, 2005
    Date of Patent: May 3, 2011
    Assignee: Dallan S.p.A.
    Inventor: Sergio Dallan
  • Patent number: 7735205
    Abstract: Expanded metal machine includes a stationary knife and an adjustable knife which is adjustable in a vertical direction and a transverse direction. The adjustable knife includes a cutting edge with spaced-apart cutting projections in the transverse direction. A transport device for transporting a flat material in a direction of transport between the knives is provided. A cam is provided and configured for performing a periodic vertical motion. There is a transverse adjustment device configured for adjusting the transverse motion of the adjustable knife in a manner synchronized with the traveling motion. Likewise, there is an eccentric drive provided for the cam, and that is configured for guiding the cam in a circulatory motion which runs in a plane determined (e.g., bounded) by the vertical direction and the transverse direction.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: June 15, 2010
    Assignee: Sorst Streckmetall GmbH
    Inventor: Johannes Sälinger
  • Publication number: 20080231050
    Abstract: An exemplary metal structure (10, 30) includes a base portion (14, 34), a flange (122, 322), and an edge portion (1241, 3241). The base portion defines a circular flanged hole (12, 32). The flange extends from a top surface of the base portion and the flange surrounds the circular flanged hole. The edge portion is configured for connecting an inside surface of the flange and the top surface of the base portion. The edge portion includes an edge surface, and a ratio of a radius of the edge surface (1242, 3242) of the edge portion with respect to a thickness of the base portion is less than 0.4. A method for making a circular flanged hole in a metal sheet (15) is also provided.
    Type: Application
    Filed: November 23, 2007
    Publication date: September 25, 2008
    Applicant: HONGFU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.
    Inventors: WEN-TAO WANG, CHENG-HUNG LIN, ZHI-GANG HU, YONG ZENG, ZHI-GUO YANG, MING-GANG WANG
  • Patent number: 7096703
    Abstract: The invention provides a method of making a three-dimensional metal structure, the method being characterized by the following steps: making longitudinal cuts in a sheet metal strip by causing the strip to pass between two rollers carrying annular knives whose blades are discontinuous and angularly offset from one roller to the other so as to form parallel rectilinear chords that are interconnected at regular intervals by connecting bridges and by linking legs, two adjacent chords being provided either with U-shaped bridges for connection with two legs of the same orientation, or with S-shaped bridges for connection with two legs of opposite orientations, and the U-shaped bridges are oriented in opposite directions from one chord to the next; slicing the strip transversely by sectioning said chords and said bridges at different longitudinal positions; moving every other precut chord into an offset plane by exerting vertical thrust on the chords carrying the U-shaped bridges so as to cause the legs to pivot
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: August 29, 2006
    Inventor: Joseph Kieffer
  • Patent number: 6691386
    Abstract: A single step method and apparatus for the production of expanded metal mesh from deformable metal strip such as lead or lead-alloy strip for use in lead-acid battery manufacture. The apparatus comprises a pair of opposed rolls each having a plurality of spaced discs having opposite side walls and circumferential, equally spaced, convexly shaped tool surfaces alternating with substantially flat surfaces, said discs having radial notches formed in the opposite sidewalls of alternate circumferential flat surfaces, whereby peripheral surfaces of opposing rolls are adapted to interact on deformable strip passing therebetween to concurrently slit and form convex wire segments and alternate nodes in said strip by intermeshing of said shaped tool surfaces.
    Type: Grant
    Filed: March 14, 2002
    Date of Patent: February 17, 2004
    Assignee: Teck Cominco Metals Ltd.
    Inventor: John V. Marlow
  • Patent number: 6609279
    Abstract: A filling material includes a web of sheet made of metal, in particular aluminum, or of dimensionally stable flexible material, especially plastic, with the sheet being perforated with evenly spaced slits extending parallel in longitudinal direction of the band and stretched transversely to the longitudinal extension, and with the sheet profiled transversely to the longitudinal extension.
    Type: Grant
    Filed: April 4, 2001
    Date of Patent: August 26, 2003
    Inventor: Andreas Kogler
  • Patent number: 6425181
    Abstract: The method comprises the steps of: moving a strip through an expansion machine having at least one expansion punching tool and an associated complementary tool or matrix, causing the expansion machine to operate in synchronism with the movement of the strip so as to form a grid strip having an non-expanded central portion and two longitudinal grid portions adjacent the central portion, and forming, in the non-expanded central band, a plurality of openings or windows separated by transverse bridges which are to form the connection appendages or lugs of the plates. These openings or windows are formed, in the expansion machine, by punches operated in phase with the operation of the expansion punching tool.
    Type: Grant
    Filed: May 23, 2001
    Date of Patent: July 30, 2002
    Assignee: Societa Industriale Accumulatori S.p.A.
    Inventors: Giulio Ghizzoni, Luigi Cucchi
  • Patent number: 6243932
    Abstract: A manufacturing method for an expanded grid includes the steps of: (a) supplying a thin plate of band form from the longitudinal direction, (b) forming a plurality of intermittent cuts parallel to the edge in a first region, excluding the central portion, of the thin plate of band form, (c) bending the central portion at a desired angle, and (d) expanding and developing the cuts in the width direction, while moving sequentially in the longitudinal direction the thin plate having the first region forming the plurality of cuts and the central portion not having the cuts, in which the first track distance of the outermost side portion of the first region having the cuts developed and formed is nearly the same distance as the track distance of the central portion. The plane distortion of the grid is eliminated, the width dimension of the grid is stable, and the quality of the electrode plate using such grid is enhanced. Further, local stress concentration of the grid is suppressed.
    Type: Grant
    Filed: August 27, 1998
    Date of Patent: June 12, 2001
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Go Kashio, Akira Iwamura
  • Patent number: 6202271
    Abstract: An apparatus and method for producing expanded mesh sheets provides for forming fine slits in a metal sheet at a slit section by plate cutters, but excluding portions in a center and both sides in a widthwise direction of the metal sheet. The areas where the slits have been formed are drawn out at an expanding section thereby opening the slits and obtaining a mesh sheet which has solid portions in the central portion and on both sides. The mesh sheet is flattened at a rolling device to obtain the expanded mesh sheet. An electrode sheet is prepared by applying an active material onto mesh portions of the expanded mesh sheet, and collectors for a battery are cut out from the electrode sheet such that lead connecting portions thereof are located at the solid portion of the mesh sheet where there are no openings.
    Type: Grant
    Filed: March 2, 1999
    Date of Patent: March 20, 2001
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshio Goda, Masahiko Ogawa, Hiroyuki Kobayashi, Saburo Nakatsuka