ClassID:

38973

B21F33/04 - CPC Classification

Classification description:

Tools or devices specially designed for handling or processing wire fabrics or the like Connecting ends of helical springs for mattresses

Recent Application in this class:
#1
20250051103
2025-02-13

Method For Transferring Coil Springs From A Coil Winding Device To A Conveyor Belt Of A Pocketed Coil Assembly Machine

#2
20240270510
2024-08-15

Method for transferring coil springs from a coil winding device to a conveyor belt of a pocketed coil assembly machine

#3
20220226880
2022-07-21

METHOD FOR MAKING A SPRING CORE FOR A MATTRESS OR FOR SEATING PRODUCTS

#4
20220041380
2022-02-10

Magnetic lift platform for transfer of coil springs

#5
20200178700
2020-06-11

System for manufacturing string of pocketed coil springs

#6
20200178699
2020-06-11

System for manufacturing string of pocketed coil springs

#7
20190365114
2019-12-05

Machine and method for assembling a bedding foundation

#8
20180333765
2018-11-22

Spring setting device, apparatus for forming a string of pocket springs, and method of setting springs

#9
20180297833
2018-10-18

Automatic bagged spring production apparatus

#10
20170360213
2017-12-21

System for manufacturing string of coiled pocketed springs

#11
20160311010
2016-10-27

Apparatus and method for transporting springs, and machine for producing a string of pocket springs

#12
20160304292
2016-10-20

Coil string staging area apparatus and method

#13
20120152401
2012-06-21

Apparatus and method for the manufacture of a spring unit

#14
20110247383
2011-10-13

Manufacture of coil springs

#15
20080282759
2008-11-20

Apparatus and method for the manufacture of a spring unit

#16
20080017271
2008-01-24

Spring-Turning Apparatus

#17
20070169832
2007-07-26

Method and device for transferring springs into an assembler

#18
20070083996
2007-04-19

Continuous wire spring mattress or seating product and method of manufacture

#19
20060282954
2006-12-21

Method to produce a mattress core and composed spring applied therewith

#20
20050241720
2005-11-03

Device for orienting springs