Patents
Sitemap › B21 - Mechanical metal-working without essentially removing material; Punching metal › B21D - Working or processing of sheet metal or metal tubes, rods or profiles without essentially removing material; Punching › B21D 41 - Application of procedures in order to alter the diameter of tube ends
Patents for B21D 41 - Application of procedures in order to alter the diameter of tube ends (2,982)
08/2010
08/18/2010CN101214519B Device for selecting expanding rod of gilled tube radiator tube expanding machine
08/17/2010US7775077 Closing method and closing machine
08/11/2010CN201543737U Hydraulic shell-nosing device for self-locking nut
08/11/2010CN201543736U Hollow tube reducing device
08/11/2010CN101797600A Method for manufacturing high-strength X100 steel grade spiral seam submerged arc welded pipe
08/10/2010US7770429 Method for producing a coupling on a pipe and device for producing said coupling
08/04/2010CN101791643A Method for machining copper-nickel-ferrum pipeline accessories
08/03/2010US7765850 Mechanical pipe-end expander and a method of manufacturing seamless steel pipe
07/2010
07/29/2010WO2010084788A1 Spinning method
07/28/2010CN101376204B Novel technique for producing seamless steel pipe
07/27/2010US7762115 Loft and lie adjustment tool for golf clubs
07/22/2010US20100180660 Extension for a pipe expander
07/21/2010CN201529730U Double-headed pipe end forming machine
07/21/2010CN101780505A Air pipe reducing device
07/21/2010CN101480683B Method for processing spherical closing-in of thin-wall alloy steel delivery tube and special-purpose hob cutter
07/20/2010US7757527 Process and apparatus for manufacturing shaped containers
07/14/2010EP2205370A1 Process and apparatus for producing a hollow body, and hollow body
07/14/2010EP1355080B1 Methods of manufacturing an outer shell unit
07/14/2010CN201524751U Control device of seamless steel pipe retractable head
07/14/2010CN101357392B Link-plate continuous automatic molding device
07/07/2010CN201519916U Tooling for heat radiating core components
07/07/2010CN101767159A Metal tube flaring molding machine
07/07/2010CN101767158A Metal tube round hole flaring method
07/06/2010US7748248 Stent crimping mechanisms
06/2010
06/29/2010CA2452020C Method for expanding a tubular blank
06/24/2010US20100155082 Actuator Assembly for Tubular Expansion
06/24/2010DE102008064320A1 Pipe pieces expanding device for production of round box, has set of form lamellas radially moved by spreading device, where form lamellas are rotatably supported at rocker arms indirectly and rotatably arranged on holder
06/23/2010CN101754820A Device and method for the axial forming of elongated hollow bodies
06/23/2010CN101745587A Push-pull type dual-expanding-head of expanding machine
06/23/2010CN101745585A Pre-flaring equipment and flaring device of tubular workpiece
06/09/2010CN201500732U Contraction end die for shaft tube of transmission shaft
06/09/2010CN101730598A An extension for a pipe expander
06/09/2010CN101722250A Cold punching and compressing molding process method for suspended drawing piece of thin plate
06/09/2010CN101722243A Method for expansion copper pipe
06/09/2010CN101722242A Non-contraction tube expanding equipment
06/09/2010CN101214520B Middle reference constructional device of gilled tube radiator tube expanding machine
06/02/2010CN201493394U Mould group for diameter reducing of seamless steel tube by hammering
06/02/2010CN101716616A Method for producing seamless steel tube by combination of drawing and expanding and device thereof
06/02/2010CN101450356B Manufacture method of high-intensity hot bend pipe
06/02/2010CN101394952B Mechanical expander and production method for seamless steel pipe
05/2010
05/26/2010EP2189229A1 Method of closing the end of pipes with a rectangular cross-section
05/26/2010CN201482875U Manual hydraulic pipe expander
05/26/2010CN201482874U Automobile flexible hinge sizing device
05/26/2010CN201482873U Tube expander
05/20/2010WO2010054902A1 Method for producing a screw foundation
05/20/2010CA2743919A1 Method for producing a screw foundation
05/19/2010CN201470786U Manual hydraulic pipe expansion device
05/19/2010CN201470712U Detachable multiple closing-in forming die for tubular goods
05/19/2010CN101708784A Aluminum two-sheet zip-top can
05/18/2010US7716961 Method for executing water jet peening
05/14/2010WO2010052456A1 Manually operated tool for flaring tubes
05/12/2010CN201455133U Pipeline sealing shape control device and pipeline sealing device using same
05/12/2010CN201455132U Straight edge port closing device for super-large-diameter thin-walled multilayer corrugated pipe
05/12/2010CN201455131U Double-head necking machine
05/12/2010CN201455130U Pipe inverting device of steel pipe tension reducing machine set
05/12/2010CN201455129U Rolling extrusion flaring device suitable for metal pipe
05/12/2010CN201455101U Combined necking die
05/12/2010CN1572416B Method and apparatus of manufacturing drum
05/06/2010US20100109273 Steering apparatus, manufacturing method of steering apparatus and manufacturing method of shaft
05/06/2010US20100107720 Titanium stretch forming apparatus and method
05/06/2010US20100107719 Necking die with shortened land and method of die necking
05/06/2010US20100107718 Necking die with redraw surface and method of die necking
04/2010
04/28/2010CN201442063U Connecting rod expansion and contraction device for pumping unit
04/28/2010CN1911591B Manufacturing equipment of hot pipe device and its application
04/22/2010CA2765091A1 Scraping tool
04/21/2010CN101695731A Double-headed pipe end forming machine
04/15/2010WO2010042083A1 One-piece flexible tube connector and method of making the same
04/15/2010WO2010040521A1 Device for opening a line
04/15/2010CA2739655A1 Device for opening a line
04/14/2010CN101337253B Bottling technique of bottle-neck type pot
04/13/2010US7695824 Reinforced member
04/06/2010US7690237 Radial piston crimping tool
03/2010
03/31/2010EP2167255A1 Method and tool for expanding a pipe end
03/31/2010EP2167250A1 Device and method for the axial forming of elongated hollow bodies
03/31/2010CN101683678A Deformed pipe expanding punch
03/31/2010CN101683676A Pipe hole expanding die
03/24/2010CN201427163Y Gas-filling and sealing device for gas-liquid shock absorber
03/24/2010CN201427162Y Tube end forming machine
03/24/2010CN100595019C Method for processing ground pile without weld joint
03/23/2010US7681430 Method and apparatus for reducing a stent
03/18/2010DE202008014245U1 Kalibrierwerkzeug Calibration tool
03/18/2010DE102008046052A1 Verfahren zur Herstellung eines rohrförmigen Stabilisators A method of manufacturing a tubular stabilizer
03/17/2010CN101670405A Necking machine for copper pipe
03/17/2010CN101670400A Combined necking die
03/16/2010CA2430950C Method and forming machine for deforming a hollow workpiece
03/10/2010EP2161083A2 Method of manufacturing container for absorbing fluid shock or mechanical shock
03/03/2010CN201415242Y Spiral expanding device of metal hard pipe of automotive exhaust metal flexible pipe
03/02/2010US7669334 System and method for forming a blade-section
03/02/2010CA2356130C Method and apparatus for drilling and lining a wellbore
02/2010
02/17/2010EP2153917A2 Spreader tool for pipes and pipe press coupling
02/17/2010EP2152447A1 Spinning process for metallic packages forming with pre-flap forming and spinning equipment for metallic packages forming with pre-flap forming
02/16/2010CA2618751C Turnbuckle and method for making the same
02/11/2010DE102008037066A1 Connection region producing method for use at longitudinal end of tubular component, involves plastically deforming tubular component such that component is pressed together with another component to provide double-walled connection region
02/10/2010CN100588481C Pipe end spinning, rolling-out and flange turning machine
02/04/2010US20100024503 Electromagnetic shape calibration of tubes
02/03/2010CN201394610Y End manufacturing die for aluminium alloy conductive tubes
01/2010
01/27/2010CN201389598Y Hydraulic necking-in machine
01/27/2010CN201389572Y Pipe cold extrusion reducing device
01/26/2010US7650772 Rotary flaring tool and method of use
01/21/2010US20100012534 Lid for tobacco container
1 ... 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 ... 30