Patents-Review.com
ClassID:

39277 ⎘

B21K1/761 - CPC Classification

Classification description:

Making machine elements elements not mentioned in one of the preceding groups rings

Recent Application in this class:
#1
20230151474
2023-05-18

METAL RINGS FORMED FROM BERYLLIUM-COPPER ALLOYS

 #2
20220290750
2022-09-15

METHOD OF MAKING AN INTERAXLE DIFFERENTIAL UNIT AND AN ANNULAR CASE

 #3
20210301384
2021-09-30

Beryllium copper alloy ring and method for producing same

 #4
20200362444
2020-11-19

METAL RINGS FORMED FROM BERYLLIUM-COPPER ALLOYS

 #5
20200088057
2020-03-19

Ring molded article manufacturing method and ring material

 #6
20200070240
2020-03-05

LIGHT WEIGHT INSERTS FOR PISTON RINGS, METHODS OF MANUFACTURING THEREOF AND ARTICLES COMPRISING THE SAME

 #7
20190055994
2019-02-21

Method for producing a synchronizer ring and associated synchronizer ring

 #8
20180297108
2018-10-18

Method and Device for Producing a Ring-Shaped Formed Part

 #9
20180036791
2018-02-08

TOOL AND METHOD FOR FORMING SURFACE FEATURES ONTO A WORKPIECE

 #10
20170326621
2017-11-16

Method for manufacturing outer ring of constant velocity joint

 #11
20170284217
2017-10-05

Ring molded article manufacturing method and ring material

 #12
20170227337
2017-08-10

Method for producing a ring-shaped or plate-like element

 #13
20170173659
2017-06-22

Forming method of forging of 718 Plus alloy

 #14
20160302540
2016-10-20

Article, Method of Forming an Article and Apparatus for Forming an Article

 #15
20160281530
2016-09-29

Material for ring rolling

 #16
20160271681
2016-09-22

Manufacturing method for material for ring rolling

 #17
20140260501
2014-09-18

Method for forming non-rectangular section ring from rectangular section ring

 #18
20130125605
2013-05-23

METHOD OF MANUFACTURING DOOR FRAME FOR WIND TOWER

 #19
20120266643
2012-10-25

Method for producing a formed part furnished with a through hole

 #20
20120192426
2012-08-02

Manufacturing method of a drawn cup needle roller bearing having seal ring

 #21
20120079720
2012-04-05

Ring manufacturing method, apparatus of the same and ring

 #22
20110302980
2011-12-15

CHARGING DEVICE FOR A BUSH EXPANDER FOR PUNCHED BUSH BLANKS MADE OF STEEL, FOR EXAMPLE, AND METHOD FOR FORGING PUNCHED BUSH BLANKS

 #23
20110193257
2011-08-11

Method for producing a molded part provided with a through-hole

 #24
20110113849
2011-05-19

Metal manufacturing method, apparatus of the same and metal object

 #25
20110083486
2011-04-14

BUSH WIDENING APPARATUS AND PROCESS FOR FORGING A BUSH BLANK

 #26
20100227695
2010-09-09

Inner ring for constant velocity universal joint and manufacturing apparatus therefor

 #27
20100227193
2010-09-09

Composite metal extrusions and a process for producing composite metal extrusions

 #28
20100101298
2010-04-29

Dynamic Centering Fixture with Hydraulic Load Delivery Compensation

 #29
20100092265
2010-04-15

SHEET METAL STRUCTURE, AND METHOD OF MAKING A SHEET METAL STRUCTURE

 #30
20100054651
2010-03-04

Manufacturing method of a drawn cup needle roller bearing having seal ring

 #31
20100028101
2010-02-04

Hot pressing process, particularly for providing metal unions for pneumatic, hydraulic and fluid-operated circuits, and metal union obtained thereby

 #32
20090301162
2009-12-10

Method of making a ring

 #33
20090000452
2009-01-01

Tool for rammer die-cutting

 #34
20080250838
2008-10-16

METHOD AND DEVICE FOR PRODUCING METAL RINGS

 #35
20060261135
2006-11-23

Composite metal tube and ring and a process for producing a composite metal tube and ring