Patents
Sitemap › B29 - Working of plastics; Working of substances in a plastic state in general › B29C - Shaping or joining of plastics; Shaping of substances in a plastic state, in general; After- treatment of the shaped products, e.g. repairing › B29C 53 - Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
Patents for B29C 53 - Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor (13,374)
12/1981
12/09/1981EP0041123A1 Core mold for bent pipes
12/08/1981US4304816 Having an inextensible tape along one surface to prevent stretching
12/08/1981CA1113841A1 Test device and method for its use
12/01/1981US4303605 Production of layered toothpicks
12/01/1981US4303104 Double-wall plastic tubing in which the outer wall has transverse corrugations and the inner wall is smooth
12/01/1981US4303032 Process for forming can bodies
12/01/1981CA1113549A1 Device for induction welding with accessible cooling medium passage
12/01/1981CA1113217A1 Method for molding sheet material with parallel ribs on one side
11/1981
11/24/1981US4302554 Blend of vinyl-aromatic block and graft copolymers with conjugated diene, olefin polymer
11/24/1981US4302491 Hair simulating fiber
11/24/1981US4302275 Apparatus for forming tubular plastic sleeves for application to bottles
11/24/1981CA1112951A1 Tube forming method
11/18/1981EP0039897A1 Improved process for fusion bonding of fluorocarbon type polymers
11/17/1981US4301200 Large diameter, without projections
11/17/1981US4300976 Enabling variable welding area
11/17/1981US4300963 Method of manufacturing cylindrical tubes and apparatus for carrying out the method
11/17/1981US4300893 Apparatus for applying transverse weld seams to superposed webs of plastics film, preferably in the production of bags from webs of tubular or semi-tubular plastics
11/17/1981US4300410 Tension-compression member
11/17/1981US4300343 Gut
11/17/1981US4300321 Composite fibre material articles with inlays and a method of producing them
11/17/1981CA1112418A1 Seaming plastics materials
11/17/1981CA1112417A1 Method of making frangible seal
11/17/1981CA1112416A1 Method and apparatus for sealing an element to a cylindrical container sleeve
11/17/1981CA1112414A1 Plastic pipe joint and method and assembly for making same
11/12/1981WO1981003145A1 Thermoforming tubular articles
11/11/1981EP0039658A2 Process for molding reinforced articles
11/11/1981EP0039377A1 Thermoforming tubular articles
11/10/1981US4299641 Method of making two ply duct core
11/10/1981US4299105 Forming permanent bends in convoluted reinforced flexible tubing
11/04/1981EP0039264A2 Method and apparatus for making bodies of revolution from yarns
11/03/1981US4298330 Curved mandrel for curing polymeric hose and method
11/03/1981CA1111751A1 Plastic pipe
10/1981
10/28/1981EP0038555A1 Mold for molding a sleeve-equipped reinforced plastic tubular body, and method for handling the mold
10/27/1981CA1111233A1 Method of and apparatus for joining opposed leg portions of molded coupling elements for slide fasteners
10/21/1981EP0038277A1 Machine for forming a tubular profile
10/20/1981US4296060 Method of producing a pultruded, fiber reinforced rod
10/20/1981US4295922 For sealing opposite edges of a web formed around a tube
10/20/1981US4295918 Apparatus for assembling a plastic mining screen
10/20/1981US4295917 Winding of fibres
10/20/1981US4295322 Tube forming shoe and methods of forming a flexible web into a tube
10/20/1981CA1110817A1 Fibre reinforced plastic structures and method and apparatus for producing same
10/14/1981EP0037601A1 A heat-insulated hose for liquefied gases
10/13/1981US4294640 Forming process for light gauge polymer sheet material
10/13/1981US4294639 Fiber-reinforced composite wheel construction
10/13/1981US4294638 Circular extrusion method providing for rotation around the extrusion opening
10/13/1981US4294636 Method and apparatus for making wire reinforced hose
10/13/1981US4294490 Fiber-reinforced composite wheel construction
10/13/1981US4294005 Method of forming cathodic electrode structure for a sodium sulfur cell
10/07/1981EP0036963A1 Welding socket for thermoplastic materials, method and apparatus for its manufacture
10/06/1981US4293294 Circular extrusion apparatus providing for rotation around the extrusion opening
10/06/1981CA1110216A1 Winding of fibres
10/06/1981CA1110150A1 Production of sheet materials
09/1981
09/30/1981EP0036763A1 Method and apparatus for forming a closure of plastics material in an aperture in a metal substrate
09/30/1981EP0036447A1 Method and device for the mechanical production of tubular coil forms
09/29/1981US4292270 Elbowed end, collapsing of heated die
09/29/1981US4292113 From softened resin
09/29/1981US4292065 Method and apparatus for shaping thermoplastic sheet material
09/29/1981US4292014 Feed mechanism comprising an endless member configured as a double helix
09/29/1981CA1109779A1 Method of manufacturing cylindrical tubes and apparatus for carrying out the method
09/23/1981EP0036381A2 Method of forming profiles, especially tubular profiles
09/23/1981EP0036184A2 Pipe building method and apparatus
09/22/1981CA1109221A1 Method and apparatus for manufacturing corrugated tubes
09/15/1981US4289564 Fabricating open weave structures
09/15/1981US4289466 Apparatus for the continuous manufacture of hollow tubular elements
09/15/1981US4289465 Apparatus for formation of pultruded fiber glass reinforced twisted article
09/15/1981US4288965 Form-fill-seal packaging method and apparatus
09/15/1981CA1109087A1 Plastic dust tube for shock absorber
09/15/1981CA1108816A1 Method and apparatus for producing double-walled thermoplastic pipe
09/08/1981US4288278 Apparatus for continuously producing pleated semipermeable membrane elements
09/08/1981US4288277 Molding system with retracting mold
09/08/1981US4288267 Preliminary and end winding method and apparatus
09/08/1981CA1108518A1 Process and plant for producing hose in vulcanizable elastomeric material
09/08/1981CA1108363A1 Kit apparatus for making o-rings
09/01/1981US4286429 Blow molding tube, cutting, drawing, twisting
09/01/1981CA1108042A1 Pressure roll and method for jacketing steel pipes with thermoplastic strip
08/1981
08/26/1981EP0034453A1 Process and apparatus for the manufacture of cellular composites
08/26/1981EP0034202A1 Apparatus for winding force transmitting elements made of fibre reinforced materials
08/25/1981US4285899 Method and apparatus for making helical plastic members, and the members produced
08/25/1981US4285750 Method for producing a plastic sleeve
08/25/1981US4285613 Apparatus for forming and installing underground drainpipe
08/19/1981EP0033798A1 Method of manufacturing flexible hose
08/18/1981US4284455 Apparatus and method for generating a continuously-formed mandrel as a supportive base
08/18/1981US4284448 Heat shrinkage around forming tool, joining ends
08/18/1981US4284226 Two-piece pleated foam cup
08/11/1981US4283448 Pressing, heating fiber segments to produce uninterrupted microstructure
08/11/1981US4283446 Fiber reinforced plastic members
08/11/1981US4283362 Folding and rolling polyethylene terephthalate
08/04/1981CA1106296A1 Coiled tubing
07/1981
07/29/1981EP0032703A1 Apparatus for ultrasonically welding sheet materials
07/29/1981EP0032488A1 Moulding plastics articles
07/28/1981US4280534 Plastics pipes having walls with lengthwise extending channels
07/28/1981CA1105794A1 Disposable hypodermic syringe and method of manufacture
07/15/1981EP0032051A2 Structural component and a method for its manufacture
07/15/1981EP0031949A1 Wide-folding hinge
07/15/1981EP0031917A2 Apparatus and method for fabricating a flexible cylinder from multi-ply flexible web material having metal and plastic plies
07/15/1981EP0031892A1 Method and apparatus for axially shirring thin-walled inflated tubular material, especially in sausage making
07/14/1981US4278490 Molds, pipes
07/14/1981US4278488 Tape delivery system
07/14/1981CA1104783A1 Method and apparatus for processing synthetic plastics film
07/08/1981EP0031747A1 Apparatus for the radial winding of a filament
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