TREA

conical tubes

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  • CPC
  • B21C37/18
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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B21Mechanical metalworking B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for Manufacture of tubes of special shape

Current Industry

B21C37/18conical tubes
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Tapered spiral welded structure
    • Patent number 11,834,856
    • Issue date Dec 5, 2023
    • Keystone Tower Systems, Inc.
    • Eric D. Smith
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Spiral forming
    • Patent number 11,731,181
    • Issue date Aug 22, 2023
    • Keystone Tower Systems, Inc.
    • Eric D. Smith
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Tapered structure construction
    • Patent number 11,571,727
    • Issue date Feb 7, 2023
    • Keystone Tower Systems, Inc.
    • Eric D. Smith
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Sheet transitioning in spiral formed structures
    • Patent number 11,529,661
    • Issue date Dec 20, 2022
    • Keystone Tower Systems, Inc.
    • Rosalind K. Takata
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Control system and method for tapered structure construction
    • Patent number 11,364,527
    • Issue date Jun 21, 2022
    • Keystone Tower Systems, Inc.
    • Rosalind K. Takata
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Spiral forming
    • Patent number 11,213,872
    • Issue date Jan 4, 2022
    • Keystone Tower Systems, Inc.
    • Eric D. Smith
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method of producing shaped article, tooling, and tubular shaped art...
    • Patent number 11,148,183
    • Issue date Oct 19, 2021
    • Nippon Steel Corporation
    • Masahiko Sato
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Tapered structure construction
    • Patent number 10,974,298
    • Issue date Apr 13, 2021
    • Keystone Tower Systems, Inc.
    • Eric D. Smith
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Tapered spiral welded structure
    • Patent number 10,895,088
    • Issue date Jan 19, 2021
    • Keystone Tower Systems, Inc.
    • Eric D. Smith
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Sheet transitioning in spiral formed structures
    • Patent number 10,807,136
    • Issue date Oct 20, 2020
    • Keystone Tower Systems, Inc.
    • Rosalind K. Takata
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Spiral forming
    • Patent number 10,493,509
    • Issue date Dec 3, 2019
    • Keystone Tower Systems, Inc.
    • Eric D. Smith
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Sheet transitioning in spiral formed structures
    • Patent number 10,486,212
    • Issue date Nov 26, 2019
    • Keystone Tower Systems, Inc.
    • Rosalind K. Takata
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Sheet transitioning in spiral formed structures
    • Patent number 10,201,841
    • Issue date Feb 12, 2019
    • Keystone Tower Systems, Inc.
    • Rosalind K. Takata
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Tapered structure construction
    • Patent number 10,195,653
    • Issue date Feb 5, 2019
    • Keystone Tower Systems, Inc.
    • Eric D. Smith
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Control system and method for tapered structure construction
    • Patent number 10,189,064
    • Issue date Jan 29, 2019
    • Keystone Tower Systems, Inc.
    • Rosalind K. Takata
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Tapered spiral welded structure
    • Patent number 10,060,149
    • Issue date Aug 28, 2018
    • Keystone Tower Systems, Inc.
    • Eric D. Smith
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Grant

    Method of manufacturing a sub-muffler outer cylinder
    • Patent number 10,016,801
    • Issue date Jul 10, 2018
    • Toyota Jidosha Kabushiki Kaisha
    • Hideki Homma
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method for manufacturing refrigerant guide tube of heat exchanger,...
    • Patent number 9,885,521
    • Issue date Feb 6, 2018
    • SANHUA (HANGZHOU) MICRO CHANNEL HEAT EXCHANGER CO., LTD.
    • Qiang Gao
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Tapered spiral welded structure
    • Patent number 9,475,153
    • Issue date Oct 25, 2016
    • Keystone Tower Systems, Inc.
    • Eric D. Smith
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Torsional extreme-plastic processing method of conic metal pipe
    • Patent number 9,447,487
    • Issue date Sep 20, 2016
    • Postech Academy Industry Foundation
    • Hyoung-Seop Kim
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    Method of manufacturing pipe with different diameter along a longit...
    • Patent number 9,327,327
    • Issue date May 3, 2016
    • JFE Steel Corporation
    • Toyohisa Shinmiya
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Tapered structure construction
    • Patent number 9,302,303
    • Issue date Apr 5, 2016
    • Keystone Tower Systems, Inc.
    • Eric D. Smith
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Process and apparatus for producing a hollow body, and hollow body
    • Patent number 9,283,602
    • Issue date Mar 15, 2016
    • ThyssenKrupp Steel Europe AG
    • Thomas Flehmig
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Tapered structure construction
    • Patent number 9,266,157
    • Issue date Feb 23, 2016
    • Keystone Tower Systems, Inc.
    • Eric D. Smith
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Tower production method
    • Patent number 9,168,576
    • Issue date Oct 27, 2015
    • Uztek Endustri Tesisleri Insaat Imalat Ve Montaj Sanayi Ve Ticaret Limited Si...
    • Cevdet Unan
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Process of producing profiles whose cross-section is variable in th...
    • Patent number 9,040,134
    • Issue date May 26, 2015
    • Muhr und Bender KG
    • Andreas Hauger
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Tapered spiral welded structure
    • Patent number 8,720,153
    • Issue date May 13, 2014
    • Keystone Tower Systems, Inc.
    • Eric Smith
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Turbine airfoil fabricated from tapered extrusions
    • Patent number 8,485,787
    • Issue date Jul 16, 2013
    • SIEMENS ENERGY, INC.
    • John J. Marra
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Energy absorber for a bumper assembly of a vehicle and method for t...
    • Patent number 8,376,427
    • Issue date Feb 19, 2013
    • Autotech Engineering A.I.E.
    • Francesc Perarnau Ramos
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Sheet metal fabrication system
    • Patent number 8,285,413
    • Issue date Oct 9, 2012
    • International Training Institute for the Sheet Metal and Air Conditioning Ind...
    • James R. Shoulders
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

  • Information Patent Application

    SPIRAL FORMING
    • Publication number 20240082899
    • Publication date Mar 14, 2024
    • Keystone Tower Systems, Inc.
    • Eric D. Smith
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    METHOD AND APPARATUS FOR MANUFACTURING METAL PIPE
    • Publication number 20230271240
    • Publication date Aug 31, 2023
    • NAKATA MANUFACTURING CO. , LTD.
    • Tomoyasu NAKANO
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    TAPERED STRUCTURE CONSTRUCTION
    • Publication number 20230249236
    • Publication date Aug 10, 2023
    • Keystone Tower Systems, Inc.
    • Eric D. Smith
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    SHEET TRANSITIONING IN SPIRAL FORMED STRUCTURES
    • Publication number 20230201901
    • Publication date Jun 29, 2023
    • Keystone Tower Systems, Inc.
    • Rosalind K. Takata
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    CONTROL SYSTEM AND METHOD FOR TAPERED STRUCTURE CONSTRUCTION
    • Publication number 20220297175
    • Publication date Sep 22, 2022
    • Keystone Tower Systems, Inc.
    • Rosalind K. TAKATA
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    METHOD FOR PRODUCING A TOWER SEGMENT AND TOWER SEGMENT
    • Publication number 20220280990
    • Publication date Sep 8, 2022
    • WOBBEN PROPERTIES GMBH
    • Albrecht BRENNER
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    SPIRAL FORMING
    • Publication number 20220080484
    • Publication date Mar 17, 2022
    • Keystone Tower Systems, Inc.
    • Eric D. Smith
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    TAPERED STRUCTURE CONSTRUCTION
    • Publication number 20210213501
    • Publication date Jul 15, 2021
    • Keystone Tower Systems, Inc.
    • Eric D. Smith
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    TAPERED SPIRAL WELDED STRUCTURE
    • Publication number 20210115690
    • Publication date Apr 22, 2021
    • Keystone Tower Systems, Inc.
    • Eric D. Smith
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    SHEET TRANSITIONING IN SPIRAL FORMED STRUCTURES
    • Publication number 20210023598
    • Publication date Jan 28, 2021
    • Keystone Tower Systems, Inc.
    • Rosalind K. Takata
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    SHEET TRANSITIONING IN SPIRAL FORMED STRUCTURES
    • Publication number 20200171558
    • Publication date Jun 4, 2020
    • Keystone Tower Systems, Inc.
    • Rosalind K. Takata
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    SPIRAL FORMING
    • Publication number 20190160505
    • Publication date May 30, 2019
    • Keystone Tower Systems, Inc.
    • Eric D. Smith
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    SHEET TRANSITIONING IN SPIRAL FORMED STRUCTURES
    • Publication number 20190151920
    • Publication date May 23, 2019
    • Keystone Tower Systems, Inc.
    • Rosalind K. Takata
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    TUBE DIAMETER EXPANDING METHOD AND FORMING APPARATUS
    • Publication number 20190076903
    • Publication date Mar 14, 2019
    • KAWASAKI JUKOGYO KABUSHIKI KAISHA
    • Ken IKAWA
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    TAPERED SPIRAL WELDED STRUCTURE
    • Publication number 20190063101
    • Publication date Feb 28, 2019
    • Keystone Tower Systems, Inc.
    • Eric D. Smith
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    TAPERED STRUCTURE CONSTRUCTION
    • Publication number 20180133769
    • Publication date May 17, 2018
    • Keystone Tower Systems, Inc.
    • Eric D. Smith
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    SHEET TRANSITIONING IN SPIRAL FORMED STRUCTURES
    • Publication number 20180056354
    • Publication date Mar 1, 2018
    • Keystone Tower Systems, Inc.
    • Rosalind K. Takata
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    METHOD OF PRODUCING SHAPED ARTICLE, TOOLING, AND TUBULAR SHAPED ART...
    • Publication number 20170274434
    • Publication date Sep 28, 2017
    • NIPPON STEEL & SUMITOMO METAL CORPORATION
    • Masahiko SATO
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    TORSIONAL EXTREME-PLASTIC PROCESSING METHOD OF CONIC METAL PIPE
    • Publication number 20140331733
    • Publication date Nov 13, 2014
    • Hyoung-Seop Kim
    • C21 - METALLURGY OF IRON
  • Information Patent Application

    TAPERED SPIRAL WELDED STRUCTURE
    • Publication number 20140220371
    • Publication date Aug 7, 2014
    • Keystone Tower Systems, Inc.
    • Eric D. Smith
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    TOWER PRODUCTION METHOD
    • Publication number 20140047696
    • Publication date Feb 20, 2014
    • Cevdet Unan
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    METHOD FOR MANUFACTURING REFRIGERANT GUIDE TUBE OF HEAT EXCHANGER,...
    • Publication number 20130248158
    • Publication date Sep 26, 2013
    • Qiang Gao
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    TAPERED STRUCTURE CONSTRUCTION
    • Publication number 20130074564
    • Publication date Mar 28, 2013
    • Eric Smith
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    TOWER PRODUCTION METHOD
    • Publication number 20120273556
    • Publication date Nov 1, 2012
    • Cevdet Unan
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    ENERGY ABSORBER FOR A BUMPER ASSEMBLY OF A VEHICLE AND METHOD FOR T...
    • Publication number 20110198873
    • Publication date Aug 18, 2011
    • AUTOTECH ENGINEERING A.I.E.
    • Francesc PERARNAU RAMOS
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Tapered Spiral Welded Structure
    • Publication number 20110179623
    • Publication date Jul 28, 2011
    • Eric Smith
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Turbine Airfoil Fabricated From Tapered Extrusions
    • Publication number 20110058949
    • Publication date Mar 10, 2011
    • John J. Marra
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Process and apparatus for producing a hollow body, and hollow body
    • Publication number 20100294014
    • Publication date Nov 25, 2010
    • ThyssenKrupp Steel Europe AG
    • Thomas Flehmig
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    DEVICE FOR FINAL CALIBRATION OF TAPERED TUBULAR SHAFTS
    • Publication number 20100242636
    • Publication date Sep 30, 2010
    • Officine Meccaniche Murgesi S.R.L.
    • Nicola Di Tullio
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    DEVICE AND SYSTEM FOR POSITIONING CIRCULAR WORK PIECES
    • Publication number 20100244347
    • Publication date Sep 30, 2010
    • PROMAU S.R.L.
    • Orazio Maria DAVI
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR