Patents
Sitemap › B28 - Working cement, clay, or stone › B28B - Shaping clay or other ceramic compositions, slag or mixtures containing cementitious material, e.g. plaster › B28B 21 - Methods or machines specially adapted for the production of tubular articles
Patents for B28B 21 - Methods or machines specially adapted for the production of tubular articles (3,281)
01/2011
01/19/2011CN101947816A Material conveying device for pipe-making machine
01/19/2011CN101947813A Support structure of concrete pipe forming machine rotating roll shaft
01/19/2011CN101691752B Construction method for connecting part of PHC tubular piles
01/12/2011CN201702857U Adjustable rubber shock mount of segment die
01/12/2011CN101596742B Smoke-air duct shocking casting machine
01/12/2011CN101559621B Roller-suspending method for producing large-diameter concrete pipes
01/06/2011US20110004323 Method for producing an adapted liner and liner
01/05/2011EP2270938A1 Electrical service unit, production method thereof and machine for same
01/05/2011CN201693669U Pretensioning prestressed concrete polygonal pile
01/05/2011CN201693668U Equipment for producing concrete tubular piles
01/05/2011CN1943920B Method for producing low pressure cast aluminum liquid lift pipe
01/05/2011CN101934555A Method for toughening ceramic layers at end parts of centrifugal self-propagating ceramic lining compound oil pipe
01/05/2011CN101934554A Concrete hollow square pile centrifugal casting mold
01/05/2011CN101614013B Pretensioning prestressed concrete pile, stretch-draw anchoring piece thereof and method for manufacturing stretch-draw anchoring piece
01/05/2011CN101508143B PHC pipe pile energy-saving maintaining method
01/04/2011US7862323 Press and method for forming a composite article
01/04/2011US7861570 Stent with improved drug loading capacity
12/2010
12/30/2010US20100330312 Device and a method for compression moulding of a fibre tray
12/29/2010CN201685323U Integral continuous extrusion moulding machine of agricultural oval concrete pipeline
12/29/2010CN101932414A Method of making hollow concrete elements
12/29/2010CN101927528A Vacuum grouting construction equipment and method
12/29/2010CN101570969B Horizontal force supporting pile and production process thereof
12/22/2010CN101920529A Annular layout for producing tubular piles
12/22/2010CN101544024B Mould for preparing sampling hammerhead of tuyere sampler of blast furnace
12/15/2010CN201669791U Novel centrifugation molding mould for producing the concrete hollow square pile
12/15/2010CN201669790U Centrifugal forming mold for production of concrete hollow square pile
12/15/2010CN201669789U Centrifugal molding die for producing concrete hollow square pile
12/15/2010CN101914921A Novel type pile foundation for sea turn engineering and pile forming method thereof
12/15/2010CN101914914A Concrete pre-stress hollow square pile and molding method thereof
12/15/2010CN101914913A Pretensioned prestressed concrete quadrilateral pile and production method thereof
12/15/2010CN101913202A Mould for U-shaped concrete sheet-pile
12/15/2010CN101913201A Centrifugal forming tool
12/09/2010WO2010140890A2 Flue gas passage section with footing and coupling strap carrier
12/09/2010US20100308514 Correcting apparatus of seamless belt, and correcting method of seamless belt
12/08/2010CN101906776A Major-diameter prestressed concrete pipe pile of glass steel pipe die and preparation method thereof
12/07/2010US7845932 Molding apparatus and method of forming undercuts
12/01/2010CN201660886U Pretensioning prestressed concrete quadrangular pile
12/01/2010CN201659627U Flexible long mold for centrifugal tubular pile
12/01/2010CN201659626U Inner expansion motive power head of radial extruding pipe making machine
12/01/2010CN101903115A Method for lining a pipe or elbow
12/01/2010CN101899830A Manufacturing method of cement pipe pile for construction
11/2010
11/24/2010CN201649383U Prefabricated plate and manufacturing and processing die
11/24/2010CN201645646U Cold isostatic pressing forming mould for preparing Na-beta-Al2O3 ceramic tube with one end closed
11/24/2010CN201645645U Multistage vertical pipemaking machine with radial extrusion
11/24/2010CN201645621U Prestressed concrete polygon solid or hollow pile molding stretching die
11/24/2010CN101896759A Pipe coating
11/24/2010CN101890756A Novel highly-efficiency, energy-saving and environmentally-friendly method and system for manufacturing centrifugal concrete pile
11/24/2010CN101239489B Large diameter pretensioned prestressing concrete tubular pipe
11/18/2010WO2009121581A8 Method for producing concrete prefinished parts
11/17/2010CN201633123U Tunnel duct piece mold structure
11/17/2010CN201633122U Hexagonal pile grout stopping and anchoring plate
11/17/2010CN201633121U Durable mold for radial extruding tuber
11/17/2010CN201633120U Hollow hexagonal pile stretching supporting plate
11/17/2010CN201633119U Special die for vertical multi-station radial extrusion pipe making machine
11/17/2010CN101886388A Pretensioned prestressed concrete polygonal pile and production method thereof
11/17/2010CN101885209A Centrifugal moulding mould used for manufacturing concrete hexagonal piles
11/17/2010CN101885208A Method for manufacturing novel high-efficiency, energy-saving and environmentally-friendly centrifugal concrete pile
11/17/2010CN101885207A Method for producing centrifugal concrete pipe pile
11/10/2010CN201627196U Double-end-surface pipe piling sheet
11/10/2010CN201626045U Rolling ring assembled with overhang roll molded pipe die
11/10/2010CN201626044U Flexible long die for centrifugal square piles
11/10/2010CN201626043U Bent core rod self-locking mechanism of duct piece mold
11/10/2010CN201626042U Device for lining PVC sheets in reinforced concrete drain pipe or jacking pipe
11/10/2010CN201626041U Closed vase column centrifugal machine
11/10/2010CN201626040U Vase centrifugal machine
11/10/2010CN201626039U Novel high-effective, energy-saving and environmental centrifugal concrete pile making manufacturing system
11/10/2010CN101881358A Reinforced concrete arch tube
11/10/2010CN101879751A Production method of concrete pipe pile
11/04/2010US20100278956 Method for retaining a vascular stent on a catheter
11/03/2010CN201620416U Pipe pile end plate
11/03/2010CN201619190U Steel formwork for fabricating holed tubular piles
11/03/2010CN201619187U Concrete pipe automatic feeding device
11/03/2010CN1560380B Precast reinforced concrete tubular pile
11/03/2010CN101532590B Y2O3 and ZrO2 compound ceramic tube and preparation method thereof
11/03/2010CN101406782B Silicon carbide porous ceramic filtering element extrusion apparatus
11/03/2010CN101161436B Pipe pile production technology and apparatus for axial distribution after mould combination
10/2010
10/27/2010CN101870139A Grouting process of thin-wall fine hollow type pipe and stirrers thereof
10/21/2010WO2010098711A8 Wall element and method for producing the element
10/20/2010CN201609928U 喷浆机落料回收装置 Shotcrete machine blanking recovery
10/20/2010CN101863080A Equipment and method for producing concrete tubular pile
10/20/2010CN101863079A Method for manufacturing prestressed concrete tubular pile
10/20/2010CN101863078A Production method of concrete tube pile
10/20/2010CN101544022B Preparation method for preformed hole fender pile
10/14/2010US20100261014 Utilization of recycled carbon fiber
10/13/2010EP2237938A1 Method of making hollow concrete elements
10/13/2010CN201604214U 一种管桩离心消音装置 A centrifugal silencer Pipe
10/13/2010CN201604213U 一种固定倒余浆装置 I pour syrup means a fixed-
10/13/2010CN101856837A Manufacture method of large-bending-moment reinforced concrete pole
10/13/2010CN101544025B Shield duct piece steel mould end side plate full-automatic open-close device
10/13/2010CN101104814B Wear-resisting jet pipe
10/12/2010US7811648 Reduced ply separation tail seal
10/07/2010US20100255234 Pressure Tank and Method and Blow-Molding Station for the Production Thereof
10/06/2010CN201597114U 一种管桩布料装置 One kind of pile fabric device
10/06/2010CN101391456B Strainer production method for pumping well
10/05/2010US7807085 Manufacturing apparatus of plugged honeycomb structure and manufacturing method of the same
10/05/2010US7807080 Offset mold twinning
09/2010
09/29/2010CN201591044U Cement container for transplanting large-scale nursery stocks
09/29/2010CN101195161B Process for manufacturing hydrodynamic bearing
09/28/2010US7803442 Reduced ply separation tail seal
09/22/2010CN101837608A Prestressed tube tensioning mold
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