leaf springs

Industry

CPC
B21D53/886

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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 B21D53/00Making other particular articles

Current Industry

B21D53/886leaf springs

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Profiled bar, and vehicle spring produced therefrom
- Patent number 10,890,228
- Issue date Jan 12, 2021
- Hendrickson Commercial Vehicle Systems Europe GmbH
- Gerhard Kuhnelt
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Method for producing a flat spiral spring, and bending device for p...
- Patent number 10,661,330
- Issue date May 26, 2020
- Adolf Schnorr GmbH + Co. KG
- Knut Naue
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Leaf spring device and method for manufacturing leaf spring device
- Patent number 10,549,594
- Issue date Feb 4, 2020
- NHK Spring Co., Ltd.
- Hidenori Chihara
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Leaf spring system
- Patent number 10,414,229
- Issue date Sep 17, 2019
- Sax Suspension Technology Pty LTD.
- John Molnar
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Versatile dynamic stamping/restriking tool
- Patent number 9,981,302
- Issue date May 29, 2018
- Apple Inc.
- Yi Zhang
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Piston
- Patent number 9,863,362
- Issue date Jan 9, 2018
- George Frederic Galvin
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Profiled bar, and vehicle spring produced therefrom
- Patent number 9,726,245
- Issue date Aug 8, 2017
- Hendrickson Commercial Vehicle Systems Europe GmbH
- Gerhard Kuhnelt
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Method for manufacturing leaf springs
- Patent number 9,278,387
- Issue date Mar 8, 2016
- NHK Spring Co., Ltd.
- Akira Tange
- B24 - GRINDING POLISHING
Information Patent Grant
Calibration tool for fabricating disk springs
- Patent number 8,413,477
- Issue date Apr 9, 2013
- Schaeffler Technologies AG & Co. KG
- Fabian Bauer
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method and device for producing bent spring elements
- Patent number 8,333,093
- Issue date Dec 18, 2012
- Robert Bosch GmbH
- Josef Kleckner
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Method for producing bent spring rails from an endless spring band
- Patent number 7,114,359
- Issue date Oct 3, 2006
- Valeo Systemes d'Essuyage
- Oliver Lenzen
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Method and device for producing curved lengths of spring band steel
- Patent number 7,076,979
- Issue date Jul 18, 2006
- Robert Bosch GmbH
- Manfred Wilhelm
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Leaf spring straightening apparatus
- Patent number 6,173,599
- Issue date Jan 16, 2001
- Oxford Suspension, Inc.
- Alexandr Vasylevich Stepanenko
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Leaf spring straightening apparatus
- Patent number 6,012,320
- Issue date Jan 11, 2000
- Oxford Suspension, Inc.
- Alexandr Vasylevich Stepanenko
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Heat treated rapid response pressure gauge spring
- Patent number 5,834,651
- Issue date Nov 10, 1998
- Mija Industries, Inc.
- John J. McSheffrey
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method and apparatus for forming a leaf spring eye
- Patent number 5,724,851
- Issue date Mar 10, 1998
- Eaton Corporation
- Michael Rivard
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Process for preparing a leaf-shaped oscillatory spring for electric...
- Patent number 5,678,309
- Issue date Oct 21, 1997
- Siegfried Richter
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method of making a diaphragm, especially for a motor vehicle clutch
- Patent number 5,492,576
- Issue date Feb 20, 1996
- Valeo
- Patrick Jehl
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Leaf spring cambering apparatus
- Patent number 5,224,370
- Issue date Jul 6, 1993
- Morita and Company Co., Ltd.
- Motoo Morita
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Leaf spring cambering method and apparatus
- Patent number 5,187,969
- Issue date Feb 23, 1993
- Morita and Company Co. Ltd.
- Motoo Morita
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method and apparatus for making blanks of a profile varying lengthwise
- Patent number 5,001,918
- Issue date Mar 26, 1991
- Alexandr V. Stepanenko
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Leaf-spring bender
- Patent number 4,987,760
- Issue date Jan 29, 1991
- Luhn & Pulvermacher GmbH & Co.
- Helmut Schulte
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Leaf spring production
- Patent number 4,976,125
- Issue date Dec 11, 1990
- Ian Wilson Technology Limited
- Alexander I. Wilson
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Device having power means for re-arching or de-arching a leaf spring
- Patent number 4,506,535
- Issue date Mar 26, 1985
- Bobby G. Eubanks
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Fabrication of seismic springs from sheets
- Patent number 4,400,861
- Issue date Aug 30, 1983
- OYO Instruments, Inc.
- Carl E. Parker
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Device for bending and hardening bar material
- Patent number 4,294,102
- Issue date Oct 13, 1981
- Proll & Lohmann Betriebs GmbH
- Lothar Luckert
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Apparatus for manufacturing steel spring leaves
- Patent number 4,294,098
- Issue date Oct 13, 1981
- Viktor P. Egorov
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method for manufacturing steel spring leaves
- Patent number 4,193,824
- Issue date Mar 18, 1980
- Viktor P. Egorov
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Forming machine for bending metal bars
- Patent number 4,173,884
- Issue date Nov 13, 1979
- Reginald P. Dobinson
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Apparatus for adjusting biasing force of leaf spring
- Patent number 4,036,042
- Issue date Jul 19, 1977
- Hitachi, Ltd.
- Hitoshi Kubota
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
LEAF SPRING DEVICE AND METHOD FOR MANUFACTURING LEAF SPRING DEVICE
- Publication number 20170313149
- Publication date Nov 2, 2017
- NHK Spring Co., Ltd.
- Hidenori CHIHARA
- B60 - VEHICLES IN GENERAL
Information Patent Application
PROFILED BAR, AND VEHICLE SPRING PRODUCED THEREFROM
- Publication number 20170314630
- Publication date Nov 2, 2017
- Hendrickson Commercial Vehicle Systems Europe GmbH
- Gerhard Kuhnelt
- B60 - VEHICLES IN GENERAL
Information Patent Application
METHOD FOR PRODUCING A FLAT SPIRAL SPRING, AND BENDING DEVICE FOR P...
- Publication number 20170216905
- Publication date Aug 3, 2017
- Adolf Schnorr GmbH + Co. KG
- Knut Naue
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
PROFILED BAR, AND VEHICLE SPRING PRODUCED THEREFROM
- Publication number 20150260251
- Publication date Sep 17, 2015
- FRAUENTHAL AUTOMOTIVE SALES GMBH
- Gerhard Kuhnelt
- B60 - VEHICLES IN GENERAL
Information Patent Application
PISTON
- Publication number 20150252750
- Publication date Sep 10, 2015
- George Frederic Galvin
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
LEAF SPRING SYSTEM
- Publication number 20140027961
- Publication date Jan 30, 2014
- Sax Suspension Technology Pty. Ltd.
- John Molnar
- B60 - VEHICLES IN GENERAL
Information Patent Application
METHOD FOR MANUFACTURING LEAF SPRINGS
- Publication number 20130111961
- Publication date May 9, 2013
- NHK Spring Co., Ltd.
- Akira Tange
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Calibration tool for fabricating disk springs
- Publication number 20100071437
- Publication date Mar 25, 2010
- LUK LAMELLEN UND KUPPLUNGSBAU BETEILIGUNGS KG
- Fabian Bauer
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Method and Device For Producing Bent Spring Elements
- Publication number 20080302157
- Publication date Dec 11, 2008
- ROBERT BOSCH GmbH
- Josef Kleckner
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Method for producing bent spring rails from an endless spring band
- Publication number 20040250598
- Publication date Dec 16, 2004
- Oliver Lenzen
- B60 - VEHICLES IN GENERAL
Information Patent Application
Method and device for producing curved lengths of spring band steel
- Publication number 20020116973
- Publication date Aug 29, 2002
- Manfred Wilhelm
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

leaf springs

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Profiled bar, and vehicle spring produced therefrom

Method for producing a flat spiral spring, and bending device for p...

Leaf spring device and method for manufacturing leaf spring device

Leaf spring system

Versatile dynamic stamping/restriking tool

Piston

Profiled bar, and vehicle spring produced therefrom

Method for manufacturing leaf springs

Calibration tool for fabricating disk springs

Method and device for producing bent spring elements

Method for producing bent spring rails from an endless spring band

Method and device for producing curved lengths of spring band steel

Leaf spring straightening apparatus

Leaf spring straightening apparatus

Heat treated rapid response pressure gauge spring

Method and apparatus for forming a leaf spring eye

Process for preparing a leaf-shaped oscillatory spring for electric...

Method of making a diaphragm, especially for a motor vehicle clutch

Leaf spring cambering apparatus

Leaf spring cambering method and apparatus

Method and apparatus for making blanks of a profile varying lengthwise

Leaf-spring bender

Leaf spring production

Device having power means for re-arching or de-arching a leaf spring

Fabrication of seismic springs from sheets

Device for bending and hardening bar material

Apparatus for manufacturing steel spring leaves

Method for manufacturing steel spring leaves

Forming machine for bending metal bars

Apparatus for adjusting biasing force of leaf spring

Patents Applicationslast 30 patents

LEAF SPRING DEVICE AND METHOD FOR MANUFACTURING LEAF SPRING DEVICE

PROFILED BAR, AND VEHICLE SPRING PRODUCED THEREFROM

METHOD FOR PRODUCING A FLAT SPIRAL SPRING, AND BENDING DEVICE FOR P...

PROFILED BAR, AND VEHICLE SPRING PRODUCED THEREFROM

PISTON

LEAF SPRING SYSTEM

METHOD FOR MANUFACTURING LEAF SPRINGS

Calibration tool for fabricating disk springs

Method and Device For Producing Bent Spring Elements

Method for producing bent spring rails from an endless spring band

Method and device for producing curved lengths of spring band steel