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B21F11/005
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Parent Industries
B
PERFORMING OPERATIONS TRANSPORTING
B21
Mechanical metalworking
B21F
WORKING OR PROCESSING OF METAL WIRE
B21F11/00
Cutting wire
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B21F11/005
springs
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Patents Grants
last 30 patents
Information
Patent Grant
Wire shaping apparatus and method of shaping a wire
Patent number
11,969,780
Issue date
Apr 30, 2024
HS PRODUCTS LTD
Simon Spinks
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Coiling machine, method for manufacturing coil spring, and coil spring
Patent number
11,964,321
Issue date
Apr 23, 2024
NHK Spring Co., Ltd.
Takeshi Furuse
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Spring forming machine
Patent number
11,759,843
Issue date
Sep 19, 2023
Asahi-Seiki Manufacturing Co., Ltd.
Eiji Obayashi
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Methods for manufacturing a spring, a spring brake, and a spring br...
Patent number
11,292,048
Issue date
Apr 5, 2022
SOMFY ACTIVITES SA
Eric Lagarde
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Coiling machine and manufacturing method of coil spring
Patent number
10,556,265
Issue date
Feb 11, 2020
NHK Spring Co., Ltd.
Takeshi Furuse
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Spring forming device and forming method therefor
Patent number
10,052,677
Issue date
Aug 21, 2018
NHK Spring Co., Ltd.
Keita Takahashi
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Contact element and method for producing a contact element
Patent number
9,306,307
Issue date
Apr 5, 2016
Biotronik SE & Co. KG
Marcel Starke
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
High strength valve spring for vehicle engine and method of manufac...
Patent number
8,470,104
Issue date
Jun 25, 2013
Hyundai Motor Company
Jung Suk Lee
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Wire rod cutting apparatus of spring manufacturing machine
Patent number
7,392,681
Issue date
Jul 1, 2008
Shinko Machinery Co., Ltd.
Katsuhide Tsuritani
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Trimmer for cutting a coiled strand
Patent number
7,257,897
Issue date
Aug 21, 2007
Ethicon, Inc.
Zhigang Li
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Wire rod cutting apparatus of spring manufacturing machine
Patent number
7,055,356
Issue date
Jun 6, 2006
Shinko Machinery Co., Ltd.
Katsuhide Tsuritani
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Wire rod-forming machine
Patent number
7,043,951
Issue date
May 16, 2006
Minebea Co. Ltd.
Takashi Suzuki
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Cutting device for spring manufacturing machines
Patent number
6,951,160
Issue date
Oct 4, 2005
David Wu
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Cutting tool assembly in coil spring winding machines
Patent number
6,178,862
Issue date
Jan 30, 2001
Chen-Nan Liao
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Chamfering device for spring-making machines
Patent number
6,006,571
Issue date
Dec 28, 1999
Chin-Tu Wu
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Driving mechanism for moving a cutter or pitch control rod in a spr...
Patent number
6,000,264
Issue date
Dec 14, 1999
Tzyh Ru Shyng Automation Co., Ltd.
Yi-Shan Chang
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Coil spring shaper
Patent number
5,927,123
Issue date
Jul 27, 1999
Ching-Liang Liu
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Spring manufacturing apparatus and manufacturing method of the same
Patent number
5,887,471
Issue date
Mar 30, 1999
Kabushiki Kaisha Itaya Seisaku Sho
Ichiro Itaya
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Apparatus for cutting and crimping coil
Patent number
5,823,233
Issue date
Oct 20, 1998
Unicoil, Inc.
David C. McHenry
B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information
Patent Grant
Cutter holder
Patent number
5,730,017
Issue date
Mar 24, 1998
Newcomb Spring Corporation
John D. Jacobson
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Severance control for sinuous wire forming machine
Patent number
5,727,435
Issue date
Mar 17, 1998
Frank L. Wells Company
Horst F. Wentzek
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Method and apparatus for cutting coiled wire
Patent number
5,555,758
Issue date
Sep 17, 1996
Ellison Circlips Group Limited
Michael S. Ellison
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Device for bending the ends of metallic binding spirals
Patent number
5,497,811
Issue date
Mar 12, 1996
Rilecart S.R.L.
Daniele P. Pigna
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Apparatus for cutting wound coils
Patent number
5,463,919
Issue date
Nov 7, 1995
Zortech International Limited
Ali Paybarah
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Spring manufacturing apparatus and spring cutting mechanism
Patent number
5,285,669
Issue date
Feb 15, 1994
Kabushiki Kaisha Itaya Seisaku Sho
Ichiro Itaya
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Spring interior forming and assembling apparatus
Patent number
5,139,054
Issue date
Aug 18, 1992
Leggett & Platt, Incorporated
Thomas P. Long
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Spring coiling machine with dual arbors
Patent number
4,798,072
Issue date
Jan 17, 1989
Newcomb Spring Corp.
Peter Vanmeggelen
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Automatic spring feeding device
Patent number
4,738,349
Issue date
Apr 19, 1988
The Gillette Company
William H. Walsh
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Cutting method to be applied to producing helical springs by cold-f...
Patent number
4,705,580
Issue date
Nov 10, 1987
Neturen Co., Ltd.
Takao Yamazaki
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Method of manufacturing and delivering coil springs
Patent number
4,638,653
Issue date
Jan 27, 1987
The Gillette Company
William H. Walsh
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Patents Applications
last 30 patents
Information
Patent Application
COIL SPRING PRODUCT WITH ROTARY CUTTER
Publication number
20240367215
Publication date
Nov 7, 2024
SPÜHL GMBH
Roland KELLER
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
SPRING FORMING MACHINE
Publication number
20220314301
Publication date
Oct 6, 2022
ASAHI-SEIKI MANUFACTURING CO., LTD.
Eiji OBAYASHI
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
COILING MACHINE, METHOD FOR MANUFACTURING COIL SPRING, AND COIL SPRING
Publication number
20210362274
Publication date
Nov 25, 2021
NHK Spring Co., Ltd.
Takuya SATO
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
COILING MACHINE, METHOD FOR MANUFACTURING COIL SPRING, AND COIL SPRING
Publication number
20210323047
Publication date
Oct 21, 2021
NHK Spring Co., Ltd.
Takeshi FURUSE
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
APPARATUS AND METHOD FOR FORMING SPRINGS
Publication number
20210187588
Publication date
Jun 24, 2021
HS PRODUCTS LTD
Simon SPINKS
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
METHODS FOR MANUFACTURING A SPRING, A SPRING BRAKE, AND A SPRING BR...
Publication number
20200180009
Publication date
Jun 11, 2020
SOMFY ACTIVITES SA
Eric LAGARDE
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
WIRE SHAPING APPARATUS AND METHOD OF SHAPING A WIRE
Publication number
20190168287
Publication date
Jun 6, 2019
HS Products Ltd
Simon SPINKS
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
COILING MACHINE AND MANUFACTURING METHOD OF COIL SPRING
Publication number
20170348759
Publication date
Dec 7, 2017
NHK Spring Co., Ltd.
Takeshi FURUSE
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
SPRING FORMING DEVICE AND FORMING METHOD THEREFOR
Publication number
20160243607
Publication date
Aug 25, 2016
NHK Spring Co., Ltd.
Keita TAKAHASHI
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
CONTACT ELEMENT AND METHOD FOR PRODUCING A CONTACT ELEMENT
Publication number
20150214650
Publication date
Jul 30, 2015
BIOTRONIK SE & CO. KG
Marcel Starke
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
SPRING WINDING MACHINE WITH AN ADJUSTABLE CUTTING DEVICE
Publication number
20140311204
Publication date
Oct 23, 2014
WAFIOS AG
Andreas Sigg
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
HIGH STRENGTH VALVE SPRING FOR VEHICLE ENGINE AND METHOD OF MANUFAC...
Publication number
20120090739
Publication date
Apr 19, 2012
Kia Motors Corporation
Jung Suk Lee
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
METHOD OF FORMING HOLLOW AND SOLID JEWELRY CHAINS AND CHAINS FORMED...
Publication number
20090241598
Publication date
Oct 1, 2009
ARIN S.A.
ANGEL RAMON SOLANILLA
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
TRIMMER FOR CUTTING A COILED STRAND
Publication number
20080015622
Publication date
Jan 17, 2008
Zhigang Li
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Wire rod cutting apparatus of spring manufacturing machine
Publication number
20060196242
Publication date
Sep 7, 2006
Katsuhide Tsuritani
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
Wire rod cutting apparatus of spring manufacturing machine
Publication number
20050016347
Publication date
Jan 27, 2005
Katsuhide Tsuritani
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
Cutting device for spring manufacturing machines
Publication number
20050016348
Publication date
Jan 27, 2005
David Wu
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
Wire rod-forming machine
Publication number
20040148993
Publication date
Aug 5, 2004
Takashi Suzuki
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
Trimmer for cutting a coiled strand
Publication number
20040102800
Publication date
May 27, 2004
Ethicon, Inc.
Zhigang Li
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Wire cutting apparatus
Publication number
20030121385
Publication date
Jul 3, 2003
Fritz Hermann
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...