Bending into helical or spiral form Forming a succession of return bends

Industry

CPC
B21D11/06

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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B21Mechanical metalworking B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING METAL B21D11/00Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00 Bending not provided for in groups B21D5/00 - B21D9/00 Twisting

Current Industry

B21D11/06Bending into helical or spiral form Forming a succession of return bends

Industries

Patents Grantslast 30 patents

Information Patent Grant
Entwined tubular arrangements for heat exchangers and counterflow h...
- Patent number 11,897,015
- Issue date Feb 13, 2024
- HS MARSTON AEROSPACE LIMITED
- Paul Phillips
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Directed decoupling between bundle and core tube in wound heat exch...
- Patent number 11,841,194
- Issue date Dec 12, 2023
- Linde GMBH
- Manfred Schönberger
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Helically coiled heat exchange array
- Patent number 11,802,737
- Issue date Oct 31, 2023
- Struthers Energy and Power Limited
- Mark Wickham
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Helicoidal blade manufacturing system and method
- Patent number 11,701,699
- Issue date Jul 18, 2023
- Horace Thompson
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Device for the production of appropriately configured roll assembli...
- Patent number 11,654,469
- Issue date May 23, 2023
- Pavlos Lekkakis
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method for manufacturing complex-curvature tubular products, such a...
- Patent number 11,389,850
- Issue date Jul 19, 2022
- CTE SISTEMI S.r.l.
- Marco Dani
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Centrifugal air separator coil manufacturing methods
- Patent number 11,235,279
- Issue date Feb 1, 2022
- The Boeing Company
- Paul F. Thieben
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method and apparatus for forming a helical type flight
- Patent number 11,161,162
- Issue date Nov 2, 2021
- Robo Helix Pty Limited
- Hayel Smair
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Entwined tubular arrangements for heat exchangers and counterflow h...
- Patent number 11,110,502
- Issue date Sep 7, 2021
- HS MARSTON AEROSPACE LIMITED
- Paul Phillips
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Helical bending device
- Patent number 10,913,097
- Issue date Feb 9, 2021
- Hubbell Incorporated
- James Archer
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Stove, flame port structure disposed in a stove and method of makin...
- Patent number 10,883,714
- Issue date Jan 5, 2021
- Sunny Liu
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Coreless auger manufacture
- Patent number 10,773,287
- Issue date Sep 15, 2020
- Technical Systems (Pty) Ltd
- Mattheus Willem Johannes Kuhn
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Bending device for a wire
- Patent number 10,665,390
- Issue date May 26, 2020
- Toyota Jidosha Kabushiki Kaisha
- Daiki Yamaguchi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method for determining a strength of a tube bundle heat exchanger,...
- Patent number 10,592,621
- Issue date Mar 17, 2020
- Linde Aktiengesellschaft
- Reinhold Hölzl
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Machine for working ribbon-shaped elements
- Patent number 10,583,474
- Issue date Mar 10, 2020
- Byte Line Di Pelissero Alessandro
- Alessandro Pelissero
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Apparatus for manufacturing elbow-shaped duct
- Patent number 10,493,511
- Issue date Dec 3, 2019
- Sung Keun Noh
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Centrifugal air separator coil manufacturing tools and methods
- Patent number 10,322,368
- Issue date Jun 18, 2019
- The Boeing Company
- Paul F. Thieben
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Machine for the production of coiled gaskets
- Patent number 10,207,311
- Issue date Feb 19, 2019
- GSKET S.R.L.
- Gian Piero Barozzi
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Jewelry mandrel pliers and method of using same
- Patent number 10,137,560
- Issue date Nov 27, 2018
- Wubbers, LLC
- Patricia Bullard
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Systems and methods for forming a pipe carcass using multiple strip...
- Patent number 9,962,750
- Issue date May 8, 2018
- Bartell Machinery Systems, LLC
- Walter Frederick Thompson
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Apparatus and method for bending and winding conductors to make sup...
- Patent number 9,842,690
- Issue date Dec 12, 2017
- CTE SISTEMI S.r.l.
- Marco Dani
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Heat exchanger and method for its manufacture
- Patent number 9,841,244
- Issue date Dec 12, 2017
- Alfred Kärcher GmbH & Co. KG
- Michael Boehm
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method and apparatus for forming a helical tube bundle
- Patent number 9,636,733
- Issue date May 2, 2017
- Neal Technologies IP Holdings, LLC
- Kennieth Neal
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Apparatus for deforming a metal bar having a rectangular section up...
- Patent number 9,610,621
- Issue date Apr 4, 2017
- MILLE S.R.L.
- Lorenzo Verzola
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Apparatus and method for forming a screw flight
- Patent number 9,555,457
- Issue date Jan 31, 2017
- Advanced Spiral Technology Pty Limited
- Gregory John Bloxham
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method and appraratus for forming a helical tube bundle
- Patent number 9,517,500
- Issue date Dec 13, 2016
- Kennieth Neal
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Bending machine for helically bending an elongated workpiece
- Patent number 9,168,577
- Issue date Oct 27, 2015
- CML INTERNATIONAL S.P.A.
- Alessandro Caporusso
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Hollow coil spring and method for manufacturing same
- Patent number 9,145,941
- Issue date Sep 29, 2015
- NHK Spring Co., Ltd.
- Takashi Yajima
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Nested helical fin tube coil and associated manufacturing methods
- Patent number 9,109,844
- Issue date Aug 18, 2015
- Rheem Manufacturing Company
- Kevin G Williams
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Apparatuses and methods for fabricating wire current collectors and...
- Patent number 9,061,344
- Issue date Jun 23, 2015
- Apollo Precision (Fujian) Limited
- Douglas J. McKay
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
TENSIONING DEVICE FOR WINDING METAL TUBES INTO A COIL
- Publication number 20250018452
- Publication date Jan 16, 2025
- JOINT-STOCK COMPANY "MECHANICAL ENGINEERING PLANT "ZIO-PODOLSK"
- Viktor Michailovich TEREHOV
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
HELICALLY COILED HEAT EXCHANGE ARRAY
- Publication number 20220325958
- Publication date Oct 13, 2022
- Struthers Energy and Power Limited
- Mark Wickham
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Application
ENTWINED TUBULAR ARRANGEMENTS FOR HEAT EXCHANGERS AND COUNTERFLOW H...
- Publication number 20210387244
- Publication date Dec 16, 2021
- HS Marston Aerospace Limited
- Paul PHILLIPS
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
DIRECTED DECOUPLING BETWEEN BUNDLE AND CORE TUBE IN WOUND HEAT EXCH...
- Publication number 20210270535
- Publication date Sep 2, 2021
- Linde GmbH
- Manfred SCHÖNBERGER
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Application
METHOD FOR MANUFACTURING COMPLEX-CURVATURE TUBULAR PRODUCTS, SUCH A...
- Publication number 20210260638
- Publication date Aug 26, 2021
- CTE SISTEMI S.r.l.
- Marco Dani
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
DEVICE FOR THE PRODUCTION OF APPROPRIATELY CONFIGURED ROLL ASSEMBLI...
- Publication number 20210086247
- Publication date Mar 25, 2021
- Pavlos LEKKAKIS
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Application
MANUFACTURING METHOD OF AN UNEQUAL-TORQUE COIL SPRING AND A MANUFAC...
- Publication number 20200078845
- Publication date Mar 12, 2020
- ANLI SPRING CO., LTD.
- Hsien-Te HUANG
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Application
ROLL BENDING MACHINE
- Publication number 20190348895
- Publication date Nov 14, 2019
- DENSO CORPORATION
- Chiaki SASAKI
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
STOVE, FLAME PORT STRUCTURE DISPOSED IN A STOVE AND METHOD OF MAKIN...
- Publication number 20190301733
- Publication date Oct 3, 2019
- Sunny Liu
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
CENTRIFUGAL AIR SEPARATOR COIL MANUFACTURING METHODS
- Publication number 20190247786
- Publication date Aug 15, 2019
- The Boeing Company
- Paul F. Thieben
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
METHOD AND APPARATUS FOR FORMING A HELICAL TYPE FLIGHT
- Publication number 20190099794
- Publication date Apr 4, 2019
- Robo Helix Pty Limited
- Hayel SMAIR
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
ENTWINED TUBULAR ARRANGEMENTS FOR HEAT EXCHANGERS AND COUNTERFLOW H...
- Publication number 20180339329
- Publication date Nov 29, 2018
- HS Marston Aerospace Limited
- Paul PHILLIPS
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
APPARATUS AND METHOD FOR FORMING A SCREW FLIGHT
- Publication number 20170326610
- Publication date Nov 16, 2017
- Advanced Spiral Technology Pty Limited
- Gregory John Bloxham
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
APPARATUS FOR MANUFACTURING ELBOW-SHAPED DUCT
- Publication number 20170320119
- Publication date Nov 9, 2017
- Sung Keun NOH
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
METHOD AND SYSTEM FOR PRODUCING OPEN OR CLOSED ANNULAR STRUCTURAL C...
- Publication number 20170128994
- Publication date May 11, 2017
- Karl-Heinz LINDNER
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
METHOD AND APPRARATUS FOR FORMING A HELICAL TUBE BUNDLE
- Publication number 20160082493
- Publication date Mar 24, 2016
- Kennieth Neal
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
MACHINE FOR WORKING RIBBON-SHAPED ELEMENTS
- Publication number 20160082494
- Publication date Mar 24, 2016
- BYTE LINE DI PELISSERO ALESSANDRO
- Alessandro Pelissero
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
APPARATUS AND METHOD FOR BENDING AND WINDING CONDUCTORS TO MAKE SUP...
- Publication number 20150135788
- Publication date May 21, 2015
- CTE SISTEMI S.r.l.
- Marco Dani
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Screw Conveyors, Augers, and Flighting for Use Therein
- Publication number 20140305262
- Publication date Oct 16, 2014
- Lenham Machinery Limited
- Michael D. Hamilton
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
PORTABLE TUBE COILER
- Publication number 20140175208
- Publication date Jun 26, 2014
- Solar Turbines Incorporated
- Byron William Halsey
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
HEAT EXCHANGER AND METHOD FOR ITS MANUFACTURE
- Publication number 20140054015
- Publication date Feb 27, 2014
- Alfred Karcher GmbH & Co. KG
- Michael Boehm
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
HOLLOW COIL SPRING AND METHOD FOR MANUFACTURING SAME
- Publication number 20130292890
- Publication date Nov 7, 2013
- NHK Spring Co., Ltd.
- Takashi Yajima
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Nested Helical Fin Tube Coil and Associated Manufacturing Methods
- Publication number 20130228321
- Publication date Sep 5, 2013
- RHEEM MANUFACTURING COMPANY
- Kevin G. Williams
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
PRODUCTION METHOD OF HOT ROLLED STEEL SHEET AND PRODUCTION METHOD O...
- Publication number 20130202801
- Publication date Aug 8, 2013
- JFE Steel Corporation
- Yoshitsugu Suzuki
- C21 - METALLURGY OF IRON
Information Patent Application
BENDING MACHINE FOR HELICALLY BENDING AN ELONGATED WORKPIECE
- Publication number 20130098130
- Publication date Apr 25, 2013
- CML INTERNATIONAL S.P.A.
- Alessandro Caporusso
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
PIPE BENDER AND METHOD FOR SPIRAL PIPE BENDING WITH THE PIPE BENDER
- Publication number 20130086962
- Publication date Apr 11, 2013
- BUSYU KOGYO CO., LTD.
- Hideo Hayashi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
MANUFACTURING METHOD OF HEAT PIPE TYPE HEAT-DISSIPATING DEVICE
- Publication number 20120198695
- Publication date Aug 9, 2012
- ICEPIPE CORPORATION
- Sang-Cheol Lee
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
MANUFACTURING APPARATUS AND METHOD OF SPIRAL DUCT INCLUDING ELBOW
- Publication number 20110072875
- Publication date Mar 31, 2011
- JINWOONG TECHNOLOGY CO., LTD.
- Kyu-seok Cha
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
ASSEMBLING METHOD FOR METAL HONEYCOMB-SHAPED CATALYZER CARRIER AND...
- Publication number 20100064496
- Publication date Mar 18, 2010
- Honda Motor Co., Ltd.
- Takashi Tsuchiya
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Apparatus and Process for Producing Metallic Honeycomb Bodies with...
- Publication number 20080182066
- Publication date Jul 31, 2008
- Emitec Gesellschaft fur Emissionstechnologie mbH
- Michael Voit
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Bending into helical or spiral form Forming a succession of return bends

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Entwined tubular arrangements for heat exchangers and counterflow h...

Directed decoupling between bundle and core tube in wound heat exch...

Helically coiled heat exchange array

Helicoidal blade manufacturing system and method

Device for the production of appropriately configured roll assembli...

Method for manufacturing complex-curvature tubular products, such a...

Centrifugal air separator coil manufacturing methods

Method and apparatus for forming a helical type flight

Entwined tubular arrangements for heat exchangers and counterflow h...

Helical bending device

Stove, flame port structure disposed in a stove and method of makin...

Coreless auger manufacture

Bending device for a wire

Method for determining a strength of a tube bundle heat exchanger,...

Machine for working ribbon-shaped elements

Apparatus for manufacturing elbow-shaped duct

Centrifugal air separator coil manufacturing tools and methods

Machine for the production of coiled gaskets

Jewelry mandrel pliers and method of using same

Systems and methods for forming a pipe carcass using multiple strip...

Apparatus and method for bending and winding conductors to make sup...

Heat exchanger and method for its manufacture

Method and apparatus for forming a helical tube bundle

Apparatus for deforming a metal bar having a rectangular section up...

Apparatus and method for forming a screw flight

Method and appraratus for forming a helical tube bundle

Bending machine for helically bending an elongated workpiece

Hollow coil spring and method for manufacturing same

Nested helical fin tube coil and associated manufacturing methods

Apparatuses and methods for fabricating wire current collectors and...

Patents Applicationslast 30 patents

TENSIONING DEVICE FOR WINDING METAL TUBES INTO A COIL

HELICALLY COILED HEAT EXCHANGE ARRAY

ENTWINED TUBULAR ARRANGEMENTS FOR HEAT EXCHANGERS AND COUNTERFLOW H...

DIRECTED DECOUPLING BETWEEN BUNDLE AND CORE TUBE IN WOUND HEAT EXCH...

METHOD FOR MANUFACTURING COMPLEX-CURVATURE TUBULAR PRODUCTS, SUCH A...

DEVICE FOR THE PRODUCTION OF APPROPRIATELY CONFIGURED ROLL ASSEMBLI...

MANUFACTURING METHOD OF AN UNEQUAL-TORQUE COIL SPRING AND A MANUFAC...

ROLL BENDING MACHINE

STOVE, FLAME PORT STRUCTURE DISPOSED IN A STOVE AND METHOD OF MAKIN...

CENTRIFUGAL AIR SEPARATOR COIL MANUFACTURING METHODS

METHOD AND APPARATUS FOR FORMING A HELICAL TYPE FLIGHT

ENTWINED TUBULAR ARRANGEMENTS FOR HEAT EXCHANGERS AND COUNTERFLOW H...

APPARATUS AND METHOD FOR FORMING A SCREW FLIGHT

APPARATUS FOR MANUFACTURING ELBOW-SHAPED DUCT

METHOD AND SYSTEM FOR PRODUCING OPEN OR CLOSED ANNULAR STRUCTURAL C...

METHOD AND APPRARATUS FOR FORMING A HELICAL TUBE BUNDLE

MACHINE FOR WORKING RIBBON-SHAPED ELEMENTS

APPARATUS AND METHOD FOR BENDING AND WINDING CONDUCTORS TO MAKE SUP...

Screw Conveyors, Augers, and Flighting for Use Therein

PORTABLE TUBE COILER

HEAT EXCHANGER AND METHOD FOR ITS MANUFACTURE

HOLLOW COIL SPRING AND METHOD FOR MANUFACTURING SAME

Nested Helical Fin Tube Coil and Associated Manufacturing Methods

PRODUCTION METHOD OF HOT ROLLED STEEL SHEET AND PRODUCTION METHOD O...

BENDING MACHINE FOR HELICALLY BENDING AN ELONGATED WORKPIECE

PIPE BENDER AND METHOD FOR SPIRAL PIPE BENDING WITH THE PIPE BENDER

MANUFACTURING METHOD OF HEAT PIPE TYPE HEAT-DISSIPATING DEVICE

MANUFACTURING APPARATUS AND METHOD OF SPIRAL DUCT INCLUDING ELBOW

ASSEMBLING METHOD FOR METAL HONEYCOMB-SHAPED CATALYZER CARRIER AND...

Apparatus and Process for Producing Metallic Honeycomb Bodies with...