Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 7976754 | Process for manufacturing a plastic hollow body, device and equipment for the implementation thereof Process for manufacturing a plastic hollow body, the process comprising the following steps: a) a tubular stream of molten plastic is extruded; b) this stream is taken up by means of a tensioning device; c) a transverse cut is ... | 07/12/2011 |
| 7976753 | Method of forming corrugated pipe with a pipe spigot seal seat A piece of corrugated pipe cut from a longer length of pipe is provided with a pipe coupling part by subjecting one or more of the corrugation crests on the pipe to heat and pressure. This reshapes the one or more corrugations to form a seal receiving recessed spigo... | 07/12/2011 |
| 7892469 | Method of making a non-compliant balloon for a catheter An intravascular catheter system for properly implanting a stent in a body lumen generally comprising a catheter having an elongated shaft with an inflatable balloon formed of compliant material and a stent mounted on the working length of the balloon. The balloon m... | 02/22/2011 |
| 7871550 | ePTFE graft with axial elongation properties A method of making an ePTFE tubular structure includes the steps of (a) forming a tube of polytetrafluoroethylene; (b) longitudinally stretching the polytetrafluoroethylene tube to form an expanded polytetrafluoroe... | 01/18/2011 |
| 7833449 | Molding process and apparatus for continuously forming heated thermoplastic polymeric material into a hollow product having at least one external surface with a variable configuration Continuous molding process and apparatus forms a hot melt of thermoplastic material against a mandrel disposed between revolving belt molds to make hollow product having surface patterns and textures of a variable configuration. The hot melt is delivered to the nip ... | 11/16/2010 |
| 7504057 | Manufacturing method of exhaust gas purifying filter In a method of manufacturing an exhaust gas purifying filter that captures and purifies particulates involved in an exhaust gas emitted from an internal combustion engine, a honeycomb mold body of a desired length is firstly made by an extrusion molding step. In a s... | 03/17/2009 |
| 7410602 | High flow rate dialysis catheters and related methods High flow rate catheters, and related methods, are useful in dialysis and other procedures. A catheter according to the invention comprises a hub and a generally elongated conduit. The conduit has a substantially continuous and smooth wall. The conduit also defines ... | 08/12/2008 |
| 7390455 | Method for continuously producing plastic tubes by biaxial drawing and a production line for carrying out said method The invention relates to a method for continuously producing plastic tubes by biaxial drawing consisting in producing a blank (E) by extrusion, heating said blank to a molecular condensation temperature, radially dilating it by the internal pressure of a fluid appli... | 06/24/2008 |
| 7238309 | Extruded ceramic log transfer system An apparatus for orienting section of a plasticized ceramic extrudate includes a marking assembly for applying an orientation reference mark to a plasticized ceramic extrudate exiting an extrusion die onto an extrudate support, and at least one extrudate-contacting ... | 07/03/2007 |
| 7217379 | Thermoplastic tube A method for producing a tube section from thermoplastic material, in which a tube section is extruded by means of an extruder which is provided with an extruder die having an inner core, which inner core defines an axial hollow space in the tube section, the tube s... | 05/15/2007 |
| RE39521 | Ribbed core dual wall structure An elongated composite tube made up of an inner tube 42 and an outer tube 44 (FIG. 3) with a plurality of elongated helical ribs disposed between the inner tube and the outer tube in a supporting relationship to both. A slinky like toy made from... | 03/20/2007 |
| 7182998 | Heat-shrinkable film Disclosed is a cross-linked heat shrinkable film comprising an ethylene polymer resin which has a gel fraction of 5-40%. Furthermore, this film contains a glycerin fatty acid ester surface active agent in an amount of 2.0-8.0% by weight based on the total weight of ... | 02/27/2007 |
| 7128862 | Biaxially oriented multilayer polymer tube for medical devices A tubular extruded member particularly suitable for use in medical devices such as intravascular catheters and guide wires, wherein the extruded tubular member includes multiple layers having biaxial helical orientation in different directions. A counter-rotation ex... | 10/31/2006 |
| 7090791 | Extrusion molding process A molding process is disclosed in which an extruded column of plastic is introduced into a mold cavity having a predetermined surface profile. A region of negative air pressure is created inside the mold cavity, exterior to the extruded column. The negative air pres... | 08/15/2006 |
| 7085455 | Conduit insert for optical fiber cable A flexible innerduct structure is configured to contain a cable within a conduit. The innerduct structure includes a pair of adjacent strip-shaped layers of flexible material that are joined along their longitudinal edges to define a channel through which the cable ... | 08/01/2006 |
| 7085458 | Fire resistant conduit insert for optical fiber cable A flexible fire resistant innerduct structure is configured to contain a cable within a conduit. The innerduct structure includes a pair of adjacent strip-shaped layers of flexible material that are joined along their longitudinal edges to define a channel through w... | 08/01/2006 |
| 7001442 | Particulate filter for an internal combustion engine and method for producing the same There is provided a particulate filter for trapping particulates contained in an exhaust gas discharged from a combustion chamber of an engine, comprising a plurality of exhaust gas flow passages each formed by three porous partitions extending substantially paralle... | 02/21/2006 |
| 6998081 | Method of producing low-shrink polypropylene tape fibers Improvements in preventing heat- and moisture-shrink problems in specific polypropylene tape fibers are demonstrated herein. Such fibers are manufactured through the initial production of polypropylene films or tubes which are then slit into very thin, though flat t... | 02/14/2006 |
| 6972045 | Substrate used for exhaust gas purification and method of fabrication thereof A method of fabricating a substrate used for purifying an exhaust gas is provided. This method comprises the step of transforming a pre-mold having a first end, a second end, a plurality of partition walls extending between the first end and the second end, the firs... | 12/06/2005 |
| 6955780 | Multi-wall cylindrical structure, method of making such structure, and apparatus for carrying out such method An elongated composite tube made up of an inner tube 42 and an outer tube 44 (see FIG. 3) with a plurality of elongated helical ribs disposed between the inner tube and the outer tube in a supporting relationship to both. A slinky like toy made ... | 10/18/2005 |
| 6863861 | Process for forming a medical device balloon A balloon blowing process which involves radial expansion of an extruded tubing segment which has been subjected to a stretching step prior to radial expansion, the process utilizing an internal pressure and a temperature which together cause at least a portion of t... | 03/08/2005 |
| 6863705 | Exhaust gas purifying filter and manufacturing method therefor A ceramic material containing organic binder is formed by extrusion, dried and cut off so as to make the honeycomb body 100 having the bulkheads 11 and a plurality of cells 12 partitioned by the bulkheads 11 and penetrating between both e... | 03/08/2005 |
| 6821591 | Seamless tubular film and methods and devices for producing a seamless tubular film materials The present invention provides a seamless tubular film on a cellulose base, being produced by extruding an aqueous cellulose N-methyl-morpholine-N-oxide spinning solution. The maximum degree of roughness Rmax is from greater than 0.1 μm to 0.5 μm and an... | 11/23/2004 |
| 6805824 | Process for manufacturing a porous drainage medium In a process for making a porous drainage medium composed of entangled strands of thermoplastic resin, subsequent to forming a tubular preform, the preform is formed with necked-down sections at intervals along the length thereof before proceeding to a cooling tank.... | 10/19/2004 |
| 6787095 | Process for manufacturing polybutylene terephthalate (PBT) catheter balloons A processing technique and a composition which allow compositions of PBT polymers or copolymers to be formed into blow molded articles, especially medical balloons such as dilatation or stent placement balloons, from extruded tubular parisons. The process includes a... | 09/07/2004 |
| 6779994 | Apparatus for cooling and calibrating an extruded plastic profile An apparatus for cooling and calibrating and extruded plastic profile (2) is described, with a cooling tank (4) which receives a cooling liquid (12) and can be charged with a pressure below atmospheric, and with at least one calibrating device (... | 08/24/2004 |
| 6740277 | Process of making a catheter An over-the-needle catheter assembly includes a tube made of a flexible, biocompatible material. The tube has a proximal portion, a distal portion and a catheter tip positioned on the distal portion remote from the proximal portion. A lumen extends through the tube,... | 05/25/2004 |
| 6726863 | Thermoplastic tube A method for producing a tube section from thermoplastic material, in which a tube section is extruded by means of an extruder which is provided with an extruder die having an inner core, which inner core defines an axial hollow space in the tube section, the tube s... | 04/27/2004 |
| 6692683 | Method of making an extruded multilayer polymeric shell having textured and marbled surface Multilayer polymeric shells for spas, bathtubs and shower enclosures having a textured and marbled surface layer. The shells are produced by forming by extrusion a multilayer polymeric sheet having a marbled appearing top layer, passing the sheet between ... | 02/17/2004 |
| 6672324 | Method of manufacturing branched pipe, pipe manufacturing apparatus and branched pipe A branched pipe (5) is manufactured by continuous extrusion in such a manner that a manifold (5a) of a branched pipe (5) is manufactured by extruding plastic material into the space defined by moving chill moulds (1, 2) and a mandrel (10) arranged therein... | 01/06/2004 |
| 6673291 | Methods of manufacturing medico-surgical tubes An epidural catheter with a soft tip is formed by extruding a two-layer tube where the inner layer is stiffer than the outer layer. The inner layer is then removed, such as by machining, from a short length at the tip, which is subsequently end-formed clo... | 01/06/2004 |
| 6632925 | Biodegradable plant protein composites and related methods The present invention includes biodegradable plant protein composites.... | 10/14/2003 |
| 6589464 | Lubricious catheter shaft An intravascular catheter which has a lubricious catheter shaft formed from a polymeric blend comprising a thermoplastic polymeric component and a lubricious polymeric component. The lubricious polymeric component is immiscible in the thermoplastic polyme... | 07/08/2003 |
| 6585923 | Extrusion method and extruder An extrusion method and an extruder, the material to be extruded being fed with a material feeding device (1) into a radial pump unit included in the equipment. The radial pump unit comprises conical gearwheels (2) which are adjacently positioned and rota... | 07/01/2003 |
| 6579401 | Method for forming a polymeric container system for pressurized fluids An apparatus for forming a polymeric pressure vessel includes two, coaxial plastic extruders separated by a hole-forming laser and connected to a variable die, a vacuum/blow molding apparatus, a fusing device, a braiding mechanism, and an overcoat applica... | 06/17/2003 |
| 6558597 | Process for making closed-end ceramic tubes A process for forming an end cap in an extruded ceramic tube. An end cap forming cavity of an end cap forming die is positioned so that, when the body of the end cap forming die is situated against an extrusion die, ceramic material is able to be forced i... | 05/06/2003 |
| 6527996 | Process of making a tubular dental hygiene device This invention relates to a novel composition for use in dental flosses or tapes. More particularly, it relates to novel compositions containing a base polymer, a block copolymer and a nonmigrating compatibilizer or plasticizer that, in combination in a b... | 03/04/2003 |
| 6464916 | Method of manufacturing curved hose The present invention is directed to a method for manufacturing a curved hose. The method is comprised of the steps of forming a hose pre-assembly, partially curing the hose on a linear mandrel, and then completing the curing of the hose pre-assembly on a... | 10/15/2002 |
| 6428585 | Electrochemical cell separator The invention provides a method of making a ceramic solid electrolyte separator for a high temperature electrochemical cell from a particulate starting material capable of being sintered to form a unitary polycrystalline solid electrolyte ceramic artifact... | 08/06/2002 |
| 6417289 | Process for producing LLDPE films with improved impact strength LLDPE films with superior impact strength are obtained by blowing lightly crosslinked LLDPE resins under film extrusion conditions typically used for blowing HDPE film.... | 07/09/2002 |
