Did You Know...
...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.
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| Number | Title | Issue Date |
| 7556758 | Hollow wall base A method for manufacturing a flexible, extruded plastic wall base with a hollow core is presented. The method includes using extrusion die for heating and extruding plastics using a multi-functional insert within the die and air pressure to create a hollow core in t... | 07/07/2009 |
| 6528162 | Acrylic synthetic fiber, use thereof, and process for producing acrylic synthetic fiber The gist of the present invention is an acrylic synthetic fiber comprising 0.5 to 20.0% by weight of a fine powder, which contains a silicic acid metal salt or aluminosilicic acid metal salt having an apparent specific gravity of 0.5 g/cm3 or l... | 03/04/2003 |
| 6458301 | Method for forming weatherseals from an interchangeable insert die assembly A method for forming a composite extrusion is disclosed, wherein a continuous length is formed having a leading length and a trailing length, the leading length including the primary extrudate and a first appendage extrudate and the trailing length includ... | 10/01/2002 |
| 6399002 | Method of making a pipe with coupling conforming to pipe diameter A plastic pipe has a multiple layer wall construction including major and minor wall portions. The major wall portions are formed with first corrugations and are separated from one another by the minor wall portions which are formed with second corrugatio... | 06/04/2002 |
| 6303062 | Mechanical fastener and method for making the same A mechanical fastener. A preferred embodiment of the invention provides a mechanical fastener including engaging stems having heads with demarcation lines. The present invention also provides a method of making a mechanical fastener that includes placing ... | 10/16/2001 |
| 6153138 | Process for modifying synthetic bicomponent fiber cross-sections Bicomponent fibers of different cross-sections may be formed without changing the geometry of the spinneret orifices. More specifically, at least two polymers are co-melt-spun through an orifice of fixed geometry so as to achieve a bicomponent fiber havin... | 11/28/2000 |
| 6132826 | Method of manufacturing hollow blade and hollow blade manufactured by same In injection-molding first and second blade bodies (2, 3), convex parts (23, 32) are formed on the surfaces of the first and second blade bodies (2, 3), respectively. Then, a horn (16) of an ultrasonic welding device is placed at a position of crossing bo... | 10/17/2000 |
| 6017478 | Method of making hollow bicomponent filaments Novel bicomponent fibers have a sheath domain and an core domain which is embedded entirely within, and thereby completely surrounded by, the polyamide domain. The core domain is annular and defines a longitudinally extending central void. The preferred b... | 01/25/2000 |
| 6017477 | Extrusion apparatus and process Extrusion apparatus is employed in a co-extrusion process to produce a triangular-shaped barrel for a writing instrument. An inner layer of material is extruded in tubular form having a substantially circular cross-section. A coating layer of three strips... | 01/25/2000 |
| 5965075 | Triple extruded frame profiles and method of producing same A method is provided for triple extrusion of a foam material, a coating and one or more flexible flanges attached to the coating or foam material. All three materials are coextruded through a common die and are useful for forming window sashes.... | 10/12/1999 |
| 5888436 | Manufacture of variable stiffness microtubing A method for manufacturing novel composite microtubing with variable stiffness over the length of the tubing and a continuous manufacturing process.... | 03/30/1999 |
| 5804659 | Processing of polyphthalamide monofilament Monofilaments useful in papermaking fabrics which contain blended polyphthalamide and fluoropolymer and a process for making these monofilaments. These monofilaments have improved dry heat stability, knot strength, loop strength and abrasion resistance. T... | 09/08/1998 |
| 5762631 | Method and system for reduced friction introduction of coaxial catheters Catheter systems comprising a base catheter and a sleeve catheter are modified to have reduced sliding friction therebetween. The sleeve catheter is received over the base catheter, and an inner luminal surface of the sleeve catheter or outer surface of t... | 06/09/1998 |
| 5733491 | Extrusion device and process for two-layer section members An extrusion device for making a section member of complex section that includes an internal portion and an outer layer. The device includes a first inlet channel for a first molten plastics material, a body including an extrusion channel whose wall defin... | 03/31/1998 |
| 5679303 | Method of and an apparatus for forming weather strip by extrusion An apparatus for extruding a weather strip having first and second function portions and a connecting portion interconnecting these function portions is disclosed. The connecting portion varies in width according to a longitudinal position along the weath... | 10/21/1997 |
| 5591389 | Method for making disposable tubular device A method of making a disposable tubular device comprising extruding a first material through a first die to form the tube and moving the tube through the second die while extruding a second material through the second die to form the tube-support structur... | 01/07/1997 |
| 5512225 | Method of increasing interlayer adhesion of multi-layer compositions having a fluoroplastic layer A method for increasing the adhesion of a first layer comprising fluoroplastic to a second layer containing a peroxide-curable hydrocarbon elastomer is disclosed. The method involves adding a primary-amine containing unsaturated compound or polymer of les... | 04/30/1996 |
| 5296188 | Methods for forming tubing utilizing suction and pneumatic pressure at the surface of the cooling plug The invention concerns a cooling plug for sizing the interior surface of thermoplastic extruded pipe. Vacuum and/or pneumatic pressure is applied at the surface of the plug. The pneumatic pressure may cause the inner wall to balloon outwardly to form bell... | 03/22/1994 |
| 5271786 | Method and apparatus for producing pipes for drip irrigation A technique for manufacturing extruded drip irrigation lines including drip irrigation elements having a non-circular cross section including the steps of: extruding a drip irrigation conduit; and heat welding discrete drip irrigation elements having a non-cir... | 12/21/1993 |
| 5258160 | Process and apparatus for producing elongated body of elastic modulus changing type A process and apparatus for producing an elongated body changing in elastic modulus longitudinally thereof with use of polymers without resulting in variations in the outside and inside diameters of the body even when the polymers are different in extrusi... | 11/02/1993 |
| 5160684 | Method for extruding ceramic multi-layer structural bodies A method and apparatus for shaping ceramic multi-layer structural bodies by extruding through a die. Ceramic molding compounds having different properties are fed under pressure, united and integrated in an extruding apparatus, while thicknesses of layers... | 11/03/1992 |
| 5154869 | Cable conduit with ridged inner wall An electrical conduit for wires or cables is formed by a tube extending along a longitudinal axis and having an inner wall formed with a plurality of longitudinally throughgoing ridges each formed by a plurality of longitudinally joined sections with ever... | 10/13/1992 |
| 5124109 | Method for producing a double wall pipe Pipe made from thermoplastic polymeric material and including a transversely corrugated outer wall and a smooth inner wall of constant diameter fusion welded to the inner crests of the corrugations of the outer wall is produced by an improved method invol... | 06/23/1992 |
| 5047193 | Method and apparatus for making honeycomb structures Method and apparatus for making a honeycomb structure including a honeycomb core in which a plurality of preformed honeycomb core elements are moved through an extrusion machine, while a layer of a plastic material is simultaneously extruded over the oppo... | 09/10/1991 |
| 5006291 | Method for making fiber reinforced plastic tubing Fiber reinforced plastic tubing is formed by an innermost layer of braided strands that include longitudinal stud fill strands within the braid, a second layer of longitudinal strands, and a third layer of braided strands, all thoroughly encased in a mono... | 04/09/1991 |
| 4941812 | Spinneret for production of a hollow filament within a hollow filament composite fiber having spacing means The apparatus concerns hollow fibers and, more particularly, a hollow filament co-spun within another hollow filament composite fiber wherein spacing means is provided to separate the inner and outer filament walls and spinnerets for co-spinning such fibe... | 07/17/1990 |
| 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 to form a longitudinal strip of the outer layer on the ou... | 06/12/1990 |
| 4892442 | Prelubricated innerduct An innerduct is disclosed which can fit inside a preexisting conduit and extend along the length thereof or can be directly buried with a plow or in an open trench, for receiving transmission cables and, in particular, fiber optic cables. The innerduct is... | 01/09/1990 |
| 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 co-extruded with the retaining profile and having variable cha... | 08/29/1989 |
| 4859264 | Method and installation for producing hose for drip irrigation The irrigation hose comprises two tubes disposed one within the other, at least one of the tubes being grooved. The ungrooved tube forms with the groove or grooves of the other tube continuous secondary ducts over the entire length of the hose. Inlet port... | 08/22/1989 |
| 4822539 | Method of and apparatus for extruding bag making material having fastener profiles and alignment ribs, with reinforcing and stabilizing beam effect ridge means A method of and apparatus for controlled coextrusion of plastic bag making film and a reclosable fastener male profile comprising extruding the film through an orifice with which is aligned a profile orifice and one or more alignment rib orifices as well ... | 04/18/1989 |
| 4790975 | 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 to form a longitudinal strip of the outer layer on the ou... | 12/13/1988 |
| 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 is provided with a two-layered tubular body portion havin... | 06/28/1988 |
| 4743189 | Spinneret for a co-spun filament within a hollow filament A hollow fiber which contains within the hollow a co-spun hollow or solid filament. The solid filament is formed of polymer that can distribute energy within the hollow fiber while a co-spun hollow inner filament can also act as a vessel for transportatio... | 05/10/1988 |
| 4721594 | Method and an apparatus for the production of ribbed pipes This invention relates to a method and an apparatus for the production of ribbed pipes. The apparatus comprises a core which together with an extrusion sleeve forms a nozzle through which a plastic material is fed into a moulding space defined between a c... | 01/26/1988 |
| 4712989 | Extrusion means for producing rubber profiles Extruded rubber profiles are often prone to a warping and a distortion during their production. In order to achieve in windshield wiper blades rubber profiles a corresponding stiffening and at the same time a simple means of mounting a spring elastic supp... | 12/15/1987 |
| 4707393 | Method for making hollow multilayer multiple-wall synthetic resin panels A plastic multilayer multiple-wall panel, manufactured by the coextrusion of a plurality of adhesively bonded layers of thermoplastically extrudable synthetic resins by means of a multicomponent extrusion die, and comprising a supporting core layer of pol... | 11/17/1987 |
| 4689174 | Producing double-walled helically wound thermoplastic pipe with a corrugated cutter wall and a smooth inner wall A system is disclosed for the production of double-walled helically wound thermoplastic pipe. The apparatus includes an endless former (10) of the axially advancing and rotating type for forming a band of thermoplastic material (24) into a corrugated oute... | 08/25/1987 |
| 4576870 | Method for making multilayered resin bodies having UV-protection and the resultant products A method for making multilayered synthetic resin bodies by the coextrusion of thermoplastic molding compounds wherein at least one of the layers in the extruded body is to be protected against UV light, which comprises extruding at least one layer from a ... | 03/18/1986 |
| 4554123 | Process and apparatus for direct extrusion of thermal barrier profiles A process and apparatus for direct extrusion of thermal barrier profiles is disclosed. The process comprises the steps of providing an elongated structural member having a lineal cavity therein with an open portion, driving the elongated member past a fil... | 11/19/1985 |
