Patents for B29C 33 - Moulds or cores; Details thereof or accessories therefor (38,496)
03/1981
03/03/1981US4253637 Device for molding structural elements of toys
03/03/1981CA1096568A1 Tire mold blow out apparatus
02/1981
02/24/1981US4252760 Method and apparatus for manufacturing articles by pressing and sintering
02/24/1981US4252591 Corrugating apparatus and process
02/24/1981US4252294 Mold for injection molding
02/24/1981CA1096285A1 Mandrel for fabricating an air spring
02/24/1981CA1096125A1 Mold and method for shaping and curing reinforced plastic material
02/24/1981CA1096120A1 Foam molding apparatus
02/19/1981WO1981000346A1 Surgeon's glove and talc free process for forming same
02/19/1981WO1981000345A1 Hypoallergenic slip resistant gloves and methods of making same
02/19/1981WO1981000344A1 Donable surgeon's glove free of inner surface lubricating powder and method of making same
02/17/1981USRE30518 Pneumatic tire wear indicating tread pattern
02/17/1981US4251474 Annular gasket for moulding lenses for organic material
02/17/1981US4251277 Compositions containing thiofunctional polysiloxanes
02/17/1981US4251253 Cooling system for molds
02/17/1981US4250606 Method of processing roll
02/11/1981EP0023749A1 Method and apparatus for the manufacture of flexible polyurethane foam articles
02/10/1981US4250300 Fluorine-containing polyesters, and their production and use
02/10/1981US4250127 Production of electron microscope grids and other micro-components
02/10/1981US4249517 Composite molded article and method of making the same
02/04/1981EP0023316A1 Mold equipment
02/03/1981US4249066 Press platen for belt press
02/03/1981US4248823 Hardenable synthetic material
02/03/1981US4248822 Process and apparatus for producing a moisture-permeable film
02/03/1981US4248817 Method for the manufacture of workpieces in particular fan blades, complete fan rotors and other bodies
02/03/1981US4248583 Blow-molding unit for synthetic plastic materials
02/03/1981CA1094765A1 Tire tread forming method and apparatus
01/1981
01/27/1981US4247508 Molding process
01/27/1981US4247279 Rotational molding system
01/27/1981US4247275 Apparatus of forming the mounting portion of a sidewall protector
01/27/1981CA1094525A1 Method of manufacturing a cassette housing of a magnetic-tape cassette and cassette housing in accordance with the method
01/27/1981CA1094276A1 Method of making a trim strip
01/27/1981CA1094274A1 Multilevel embossing of foamed-sheet materials- ii
01/21/1981EP0022706A1 Agent for moulding rubber articles
01/20/1981US4246214 Method of molding polyurethane foams in steam heated molds and adhesion steam condensate is used to cool the molds
01/20/1981US4246213 Method of producing a cover member for a safety air-cushion
01/20/1981US4245976 Nozzle valve for in-the-mold coating apparatus
01/20/1981US4245971 Molding machine with expandable chamber and locking means
01/20/1981US4245811 Press mould half, more especially for producing records
01/14/1981EP0022373A1 Continuous casting apparatus
01/14/1981EP0022350A1 Tire press and method
01/14/1981EP0022167A1 Method of making a caravan door-leaf and door-leaf obtained by this method
01/13/1981US4244912 Molding process using curable silicone release compositions
01/13/1981US4244886 Fluorosulphonyl oxafluoroalkanes and their derivatives
01/13/1981US4244742 Process for the production of aqueous based inner tire release compositions
01/13/1981US4244683 Apparatus for compression molding of retroreflective sheeting
01/13/1981US4244681 Magnetic fiber optic casting apparatus
01/13/1981CA1093378A1 Method and apparatus for texturing the surface of non- woven fabrics and films
01/12/1981WO1981000077A1 Moulding plastics articles
01/07/1981EP0022127A2 Rolls suited to be heated or cooled
01/07/1981EP0022009A1 Mould assembly for moulding elastomers
01/07/1981EP0021691A1 Process for preparation of vessel closures provided with liners and bottles sealed by such closures
01/07/1981EP0021669A1 Apparatus and method for preparing flexible diaphragms
01/07/1981EP0021255A1 Tire liner and method of preparation
01/06/1981US4243620 Method of manufacturing an object in plastics material and object obtained thereby
01/06/1981US4243618 Method for forming retroreflective sheeting
01/06/1981US4243368 Apparatus for making a stress-free plastic article
01/06/1981US4243364 Safety mechanism for injection-molding machine provided with take-off member
12/1980
12/30/1980US4242070 Shape of cut for semicure butyl rubber bag
12/30/1980CA1092314A1 Process for the manufacture of crosslinked thermoplastic items and device used in connection therewith
12/30/1980CA1092307A1 Lens-casting cell
12/23/1980US4240999 Method for introducing multi-component foam reactants into mold form involving the use of a foaming spacer
12/23/1980US4240775 Implementation for applying a lining to the inner wall of a tubular article
12/23/1980CA1091882A1 Thermoplastic duplication plate making method
12/16/1980US4239862 Permitting molded articles to be demolded within shorter time without tearing or distortion
12/16/1980US4239712 Method of making bifocal contact lenses
12/16/1980US4239571 Compression of an open-cell foam material impregnated with a thermosetting resin
12/16/1980US4239476 Mold for producing moldings from a plastic compound
12/16/1980US4239245 Curing thermosetting polyurethane
12/16/1980CA1091408A1 Apparatus for positioning and curing a pre-shaped tire carcass
12/11/1980WO1980002670A1 Mould for producing form castings of resin cast by reaction and utilisation of such mould
12/10/1980EP0020319A1 Mould cavity
12/10/1980EP0020248A1 Apparatus for moulding cylindrical pieces
12/10/1980EP0020008A1 High-speed plating arrangement and stamper plate formed using such an arrangement
12/10/1980EP0019867A1 Mould for casting articles from polymerisable synthetic resins
12/10/1980EP0019708A1 Method of manufacturing a triangular blank for a folding triangle in a rotary printing press, and triangular blank so manufactured
12/09/1980US4238181 Method and apparatus for runnerless injection-compression molding thermosetting materials
12/09/1980CA1091382A1 Process for preparing thiofunctional polysiloxane polymers
12/09/1980CA1091381A1 Silicone containing reaction injection molded polyurethanes
12/09/1980CA1090962A1 Method for the renewal of a worn pneumatic or solid rubber tyre by applying a vulcanised tread and apparatus for carrying out this method
12/02/1980US4237086 Method for releasably mounting a substrate on a base providing heat transfer and electrical conduction
12/02/1980US4236883 Tire press
11/1980
11/25/1980US4235834 Acrylic ester polymers
11/25/1980US4235832 High pressure injection molding and curing of thermoplastic resins
11/25/1980US4235410 Reinforcement panel and mold for making same
11/25/1980US4235138 Punch and stripper assembly for a reciprocating metal-punching press
11/18/1980US4234369 Method for repairing and retreading vehicle tires
11/18/1980US4234300 Edge embossing device
11/18/1980CA1089749A1 Post cure inflator
11/12/1980EP0018951A2 Manufacturing process for covering panels, and panels obtained with this process
11/12/1980EP0018714A1 Method of manufacturing moulds for the soles of footwear and a mould produced by this method
11/12/1980EP0018610A1 Corrugating apparatus and process
11/12/1980EP0018528A1 Mould release agent used for making bodies of polyisocyanate based plastics material
11/11/1980US4233261 Method and device for manufacturing information carriers
11/11/1980US4233020 Collapsible mandrel
11/11/1980US4233006 Machine for forming expanded resinous products
11/11/1980CA1089167A1 Device for removing molded material from multi-plate molds
11/04/1980US4231987 Method of stripping a molded article
11/04/1980US4231982 Method for the production of tools for deep drawing, moulding, extruding and the like
11/04/1980US4231834 Process to manufacture tubular articles resembling wood, cane, bamboo, reed, wicker, rattan, rush, and the like