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4935170 |
Method for the manufacture of a cable with optical fibers
The problem which has existed heretofore, of maintaining the protection of optical fibers under all circumstances from axial traction loads in cables used for the transmission of data by means of a...
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4933134 |
Method and device for extrusion of a double wall plastics pipe
Method in extruding a double-walled plastic tube by using plastic materials of different colors for the inner layer and the outer layer, a portion of the material for the inner layer being diverted...
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4911872 |
Process of making a perforated film
This invention relates to a process for making a tubular structure formed by a film of extruded synthetic matter whose walls are at least partially perforated, including the steps of extruding from...
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4904431 |
Process for manufacturing catheters
A method of manufacturing soft tip catheters having inner rigid polymer layers and outer soft, pliable polymer layers. The method involves first extruding the rigid polymer at varying extrusion...
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4900503 |
Method and apparatus for producing a finned tube from synthetic plastics material
An apparatus for producing a finned tube from synthetic plastics material has a moulding chamber which moves in the direction of production. Molten synthetic plastics charge enters this moulding...
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4889758 |
High-strength panel structure
A panel having high strength relative to its weight is made of rigid material and is formed with a plurality of open cells, each open at one side, and with a plurality of closed cells, each closed...
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4880585 |
Continuous method of tableting
Extrudable pharmaceutical mixtures are tableted by a continuous method in which the mixture is extruded and the still deformable extrudate is pressed between two rollers which are driven in...
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4872243 |
Multi-hook fastener member
A method of continuously producing an elongated strip-like fastener member is disclosed which facilitates highly efficient formation of the fastener member with a great multiplicity of resiliently...
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4867928 |
Apparatus and a method for the production of ribbed pipes
This invention relates to an apparatus and a method for the production of outwardly ribbed, plastic pipes. The apparatus includes a core around which a plasticized material is pressed from a...
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4867667 |
Apparatus for producing screw feeders for a plastic injection-molding machine
A system for producing a screw feeder for use in a plastic injection-molding machine, according to which system a molten material is extruded through an injection opening of a rotating die, the...
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4865797 |
Method and an apparatus for the extrusion of plastic pipes
The invention relates to a method and an apparatus for the extrusion of plastic pipes. Today, plastic pipes are provided with a sleeve in such a manner that the end of the pipe is heated,...
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4865796 |
Method of producing molding members
A novel method of producing molding members for automobiles, formed at least partly of a synthetic resin material is disclosed. According to the method of the invention, synthetic resin material is...
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4861530 |
Method for enabling the cutting to size of a continuously extruded weather strip with variable characteristics, particularly for motor vehicle bodies
A method for enabling the cutting to size of a continuous extruded weather strip including an anchoring profile provided with internal longitudinal retaining ribs and a tubular sealing profile...
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4851067 |
Method for producing a weather strip for an automobile
A method for producing a weather strip of which the sectional shape is continuously changed in its longitudinal direction, has the steps of simultaneously extruding two rubber members out of two...
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4836970 |
Method of extrusion blow-molding container having upper and lower sections of different thickness
A method of forming a container having upper and lower portions, the lower portion having self-supporting side walls and a bottom wall. The upper portion is flexible and non-self-supporting....
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4830809 |
Method for making flexible link belts
A flexible link belt is made by injection molding link portions into and through a flexible carrier webbing, whereby the link portions are also bonded to each other through holes in the webbing....
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4828778 |
Method for continuous injection molding
A method for continuous injection molding of thermoplastic materiall into three-dimensional sheets having a projection extending from a substantially uniform backing layer. An extrusion die having...
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4826416 |
System for injection molding tire treads
A ring tread (12) or a continuous tread (16) may be injection molded in a generally cylindrical segmental mold (20) having a core (42) and radially movable segments (46) forming a mold cavity (54)....
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4820270 |
Balloon catheter and process for the manufacture thereof
The present invention relates to catheters and like devices for passage into a body cavity. In the invention the device has a stem portion comprising at least a first tube disposed within a second...
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4818203 |
System for injection molding elongated bodies
A tire tread (74,76,194) is injection molded by increments in a mold cavity (56,58,119,224,262) having an open end (110,272) closed by a trailing end (116) of a cured section (114,228). A...
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4816550 |
Polyamide feed yarn for air-jet texturing
Improved feed yarns for air-jet texturing are provided by using high molecular weight polyamide polymer spun through non-round capillaries at high spinning speeds to give filament modification...
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4810319 |
Method of making a monofilament having on the surface embedded filamentons material
A method for effecting the electrostatically enhanced and selectively directed deposition of short lengths of solid filamentous materials onto the surface of a downwardly flowing liquid...
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4794028 |
Method for continuously producing a multi-hook fastner member and product of the method
A method of continuously producing an elongated strip-like fastener member is disclosed which facilitates highly efficient formation of the fastener member with a great multiplicity of resiliently...
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4791026 |
Synthetic polymer multifilament yarn useful for bulky yarn and process for producing the same
A synthetic polymer multifilament yarn capable of being converted to a bulky yarn is composed of a plurality of irregular individual filaments each having at least two belt-shaped filamentary...
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4781880 |
Method of forming plastic ribbed enclosure
An enclosure having a self-supporting side wall formed of a plurality of laterally spaced ribs with non-self-supporting thin webs therebetween whereby the ribs and webs cooperate one with the other...
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4772347 |
Process for making filamentary structure
A method of making a filamentary structure comprising a spiral thermoplastic core filament disposed within a thermoplastic sheath component is provided. The method involves extruding together from...
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4765936 |
Method for the manufacture of a weather strip for motor vehicles
The method enables the manufacture of a weather strip including a profiled section with a cross-section in the form of a web terminating in a head, the extent of the web being variable between a...
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4755334 |
Process for the continuous production of articles or coatings with contours of complicated shape
The present invention is directed to a process for the continuous production of articles or coatings with contours wherein a liquid material is introduced at one end into the mold cavity formed...
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4753765 |
Method of making a catheter having a fuseless tip
A method is providing for making a thin-walled catheter of the type having a distal end adapted to be formed into a curve and guided through branching blood vessels or the like so that the catheter...
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4732723 |
Method of producing a net
The invention relates to a net composed of a regular array of longitudinal ribbon-formed continuous filaments of a polymer substance, and a regular array of transverse stems of different polymer...
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4731212 |
Method for continuously manufacturing slide fastener coupling elements
In a method for continuously manufacturing slide fastener coupling elements, a molded strip of coupling element blanks is folded by a first folder unit about its longitudinal axis while still hot...
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4720314 |
Process for producing self-crimping polyester yarn
Polyester polymer is extruded at different speeds through groups of parallel closely spaced orifices at relatively high spinning speeds. The resulting filament have high and low shrinkage regions...
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4705469 |
Apparatus for making a flexible link belt
A flexible link belt is made by injection molding link portions into and through a flexible carrier webbing, whereby the link portions are also bonded to each other through holes in the webbing....
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4686766 |
Method of forming a flexible strip of encapsulated contact members
A continuous strip of spaced-apart electrical contacts is taught. Briefly stated, a mold structure is utilized to position a plurality of contacts in a mold. A polymeric material such as silicone...
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4654021 |
Making intermittent orientation draw tape for bags
A thermoplastic draw tape for bags is produced by stretching thermoplastic between a first pair of nip rollers running at a relatively slow speed and a second pair of nip rollers running at a...
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4650629 |
Plastic molding process
A die ring for use in a blow molding process is provided with depressions at the downstream end of the land to provide the parison with a longitudinally thickened rib and depressions at the...
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4650451 |
Intermittently translating draw tape stretched between nip rolls
A thermoplastic tape having thick and wide end portions with a relatively thin and narrow stretched central portion between them is produced by a first pair of nip rolls running at a slow speed,...
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4631162 |
Process for producing a hollow irregular multifilament yarn
A synthetic polymer hollow irregular multifilament yarn useful for producing bulky yarn products comprises a plurality of hollow irregular individual filaments each comprising a hollow filamentary...
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4631161 |
Continuous molding method
A continuous molding method is disclosed as providing a sliding seal chamber in which moving molding surfaces form and can provide means for the induction of such temperature changes required to...
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4626184 |
Scarfing apparatus
A scarfing method and apparatus are disclosed for making a longitudinally and transversely contoured batt on a moving fibrous web. The apparatus comprises a scarfing roll disposed on one side of a...
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4623495 |
Method and apparatus for manufacturing an optical fiber cable
A method of manufacturing an optical fiber cable involves embedding a traction-resistant axial strength member of at least one wire of precipitation hardened martensitic steel in a rod of...
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4614220 |
Method for continuously casting thin sheet
A process and apparatus for continuously casting a castable material to a thickness of 10 to 40 mils. A molten material is first spread onto a spreading roller to a uniform thickness and then...
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4613470 |
In line process for sequentially forming and shaping a filament
A fibre (1), which may be an artificial polymeric, glass or glass-fibre fibre, is treated by exposing it to an energy flux (2) so that the fibre absorbs energy differentially along its length, and...
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4612152 |
Method for production of water-proofing sheet
A method for the production of a water-proofing sheet by mixing a thermoplastic rubber with asphalt, and then shaping the mixture directly into sheet having exhaust grooves on its surface. The...
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4608212 |
Method for the electrostatic treatment of monofilaments
Method for effecting the electrostatically induced thermal modification and disruptive surface deformation of liquid monofilamentous materials in a gaseous environment.
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4600549 |
Method and device for producing endless synchronous belt with modifed teeth
Synchronous conveying belts are formed by modifying teeth grooves of a molding gear used in a molding device employing the gear. A groove plate is configured to fixedly mount in a bottom land of...
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4597921 |
Provision of plastic insulation upon an electrical conductor
Providing plastic insulation on an electrical conductor in which the conductor, enclosed in an oversize tube, is passed through a fluid and through an annular crystal of a piezoelectric material...
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4590032 |
Process for draw-fracturable yarn
Process for draw-fracturing yarn the continuous filaments of which each have a cross-section comprising a body section and one or more wing members joined to the body section, the one or more wing...
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4583996 |
Apparatus for separating condensable gas
This invention provides an apparatus for separating condensable gas, which is provided with, as a membrane for separating condensable gas, an inorganic porous membrane which has a layer having a...
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4584150 |
Method for the continuous extrusion of an extrusion, particularly a weather strip for motor vehicle bodies
The method consists of: providing an elongate member (tracer) of a material which is substantially inextensible or extensible to a foreseeable extent, feeding the member to the extrusion head...
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