Bizarre Patents
A helium-filled sun shade for protecting individuals engaged in outdoor activities.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 5779736 | Process for making fibrillated cellulose acetate staple fibers The present invention discloses a process for producing a fibrillated cellulose acetate fiber comprising contacting cellulose acetate fiber with a strong base solution at conditions sufficient to remove greater than about 5% of bulk acetyl groups from sai... | 07/14/1998 |
| 5661880 | Method and apparatus for producing a multifilament yarn by a spin-draw process A method and apparatus for producing a multifilament yarn by a melt spinning-draw process, and which includes applying additional heat to the melt in the region of the spinneret. The relationship between the withdrawal speed and draw ratio may be changed,... | 09/02/1997 |
| 5431999 | Polyester monofilaments A process of high-speed spinning of a set of thermoplastic monofilaments having a linear density from 1 to 30 dtex, includes spinning to obtain melt-spun thermoplastic monofilaments and airblast cooling of the melt-spun monofilaments. To produce a particu... | 07/11/1995 |
| 5340523 | Improved method of incrementally drawing fibers A fiber drawing process and apparatus in which the fibers are drawn in small increments by passing the fibers in multiple wraps over on rotatably mounted spaced apart spindles having discrete circumferential microterraced surfaces which support the fiber.... | 08/23/1994 |
| 5277858 | Production of high tenacity, low shrink polyester fiber In a continuous process for the production of high strength polyester yarn with enhanced low shrinkage the improvement comprising maintaining the traveling yarn about a pair of heated draw rolls for a period of at least 0.25 seconds, maintaining the air t... | 01/11/1994 |
| 5266254 | Process for the high-speed spinning of monofilaments A process of high-speed spinning of a set of thermoplastic monofilaments having a linear density from 1 to 30 dtex, includes spinning to obtain melt-spun thermoplastic monofilaments and airblast cooling of the melt-spun monofilaments. To produce a particu... | 11/30/1993 |
| 5240667 | Process of making high strength, low shrinkage polyamide yarn An improved process for making high tenacity polyamide yarn of the type including the coupled steps of spinning, drawing the yarn at least about 5.OX in stages, the final draw stage employing final stage draw rolls which are heated to above about 200° C.... | 08/31/1993 |
| 5183620 | Process of drawing yarn using an oscillating draw assist element A process and apparatus for drawing polyamide yarn in which the yarn having a lubricating finish is drawn while being spirally advanced in frictional contact with the outer surface of a yarn draw assist element. In such process and apparatus, the outer su... | 02/02/1993 |
| 5137676 | Process for increasing the handling control of a bundle of wet yarns A process is disclosed for improving the handling control of a moving, wet, unitary bundle of a plurality of yarns wherein a tension is applied to the yarn between the spinneret and the feed rolls until individual yarns can be separated from the bundle an... | 08/11/1992 |
| 5110517 | Method for deregistering crimped multifilament tow A method and apparatus for deregistering drawn crimped nylon multifilament tow includes the steps of stretching the tow under constant controlled tension at a temperature below the glass transition temperature of the nylon. The apparatus includes means fo... | 05/05/1992 |
| 5091130 | Process for the production of highly filled yarns A highly filled yarn is formed by melt spinning a thermoplastic fibre-forming polymer containing at least 25% by weight of a particulate filler through a spinneret to form a continuous multi-filament yarn. The filaments are drawn away from the spinneret a... | 02/25/1992 |
| 5083419 | Method of producing a yarn and an apparatus for carrying out this method In a method and apparatus for producing a yarn, a synthetic pre-oriented multifilament yarn is fed at a first velocity to a non-heated pin having a diameter less than 10 mm. After turning the yarn around the pin for an angle between 270° and 360°, the y... | 01/28/1992 |
| 5066447 | Process for improving the properties of a feed yarn Drawing, especially cold-drawing, or hot-drawing or other heat-treatments of spin-oriented crystalline polyester filaments, and particularly polyester feed yarns, that have been prepared by spinning at speeds of, e.g., 4 kg/min, and have low shrinkage and... | 11/19/1991 |
| 5051216 | Process for producing carbon fibers of high tenacity and modulus of elasticity Acrylonitrile precursor fibers are subjected to a flame-resisting treatment, in an oxidizing atmosphere, while being elongated at least 3%, until a density of 1.22 g/cm3 is reached. The fibers are further treated to increase density up to 1.40 ... | 09/24/1991 |
| 4948549 | Process for producing soot filter elements A process is described for producing filter elements which contain a cross-wound yarn as the filter material, wherein twisted yarn of fine individual fibers is roughened to enhance its filtering action. The yarn may be heat-resistant and the filter elemen... | 08/14/1990 |
| 4940559 | Process for the production of uniform POY filaments Melt spinning method for the production of pre-oriented low-crystalline synthetic filaments which are distinguished by a high degree of uniformity and by the ability of being worked at high speeds in a friction-draw texturing process, according to which m... | 07/10/1990 |
| 4902462 | Method of producing polypropylene yarns Continuous polypropylene multifilament yarns are made by melt spinning and stretching in an integral process; a sufficient number of filaments for forming at least 8 continuous filament yarns each consisting of at least 10 filaments are melt spun through ... | 02/20/1990 |
| 4828775 | Continuous process for preparing high-strength profiles A process for preparing a profile of thermotropic polymer having a large cross-section, with improved tensile strength and tensile elasticity moduli, comprising first forming a bundle of fibers or filaments of at least one thermotropic polymer and continu... | 05/09/1989 |
| 4818456 | Simplified process for obtaining polyester yarns at high speed The invention provides a process for simplified spinning of yarns on polyethylene terephthalate, at high speed and with direct take-up on the winder. After leaving the spinning die, the filaments are cooled by a gaseous fluid, simultaneously brought toget... | 04/04/1989 |
| 4814129 | Process for producing stabilized yarn for producing carbon fiber A process for producing a stabilized yarn for producing a carbon fiber is disclosed. It includes a step for thermally stabilizing a yarn by travelling a continuous fiber through the heated inside of a thermal stabilization furnace. The yarn stabilizing st... | 03/21/1989 |
| 4814122 | Method for processing a warp sheet of yarns A method for processing a warp sheet of synthetic multifilament yarns wherein the yarns may be withdrawn from supply packages and advanced along a path of travel in warp sheet form, heated and drawn while in advancing warp sheet form to orient the filamen... | 03/21/1989 |
| 4804508 | Process for spinning polyamide at high speed A simplified process is provided for spinning polyamide at high speed, with direct take-up on the winder of the filaments produced in which the filaments are cooled transversely under the die by means of a gaseous fluid having a moisture content of approx... | 02/14/1989 |
| 4789509 | Method for fibrillating carbonaceous fibers A method for fibrillating carbonaceous fibers, which comprises contacting a tow of carbonaceous fibers to rotating surfaces of rollers for fibrillation, wherein at least two rollers are disposed so that the center axes of the rollers intersect the directi... | 12/06/1988 |
| 4648240 | Continuous high speed spin-draw-texturing process for nylon yarn A continuous high speed spin-draw-false twist texturing process for producing a textured nylon yarn having high yarn uniformity is disclosed. The process comprises the steps of (a) melt-spinning a plurality of nylon filaments from nylon polymer; (b) cooli... | 03/10/1987 |
| 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 the cross-section of the fibre is altered in response to t... | 09/23/1986 |
| 4610060 | Drafting system for yarns Drafting system for textile yarns and including a driven feed roll, a driven output roll, a low friction freely rotatable heated roll located between the driven feed roll and the driven output roll and operating at essentially the same surface speed as th... | 09/09/1986 |
| 4543697 | Low friction drafting system for yarns Low friction drafting system for yarn and having in sequence a driven feed roll, a low friction freely rotatable hot roll for preheating the yarn, a low friction freely rotatable hot roll for thermally stabilizing the yarn, a driven output roll, with tens... | 10/01/1985 |
| 4495126 | Adhesive activated emulsion to a polyester yarn A process for the application of an adhesive activated emulsion to a polyester yarn. More specifically the process involves applying an adhesive during drawing stage of the polyester yarn. The adhesive is applied to an essentially fully drawn yarn.... | 01/22/1985 |
| 4485063 | Process for drawing polyamide yarn In a coupled two-stage draw, constant-length annealing process for making polyamide yarn, heat for assisting the second-stage draw is provided by means of an environmentally-heated metal shoe located in an annealing hot chest.... | 11/27/1984 |
| 4293518 | Control of synthetic yarns during drawing with heated rolls The uniformity of bulked continuous filament yarns is improved by stabilizing the yarn path on draw pins and on heated draw rolls in a coupled spin-draw-bulk process wherein just before the yarn contacts a draw pin it is passed between two parallel guide ... | 10/06/1981 |
| 4202854 | Polyamide spin-texture process A spin-texture process for producing polyamide yarns is described in which a freshly extruded yarn is passed between two pairs of rotating rolls and then collected. The second pair of rolls (draw rolls) is driven at a peripheral speed greater than that of... | 05/13/1980 |
| 4202962 | Fibers of arylene oxadiazole/arylene N-alkylhydrazide copolymer High strength fibers of arylene oxadiazole/arylene N-alkylhydrazide copolymers are prepared by a unique solution spinning process, whereby an arylene oxadiazole/arylene N-alkyloxadiazolium hydrosulfate copolymer in sulfuric acid or oleum is extruded into ... | 05/13/1980 |
| 4192048 | Texturizing a textile product A textile product formed of at least one thermoplastic yarn is texturized by subjecting the yarn simultaneously to a mechanical traction force and a high frequency electrical field applied at local points on the yarn. In order to increase the efficiency o... | 03/11/1980 |
| 4179529 | Method of lubricating a thermoplastic resin strand for sliding contact in a reshaping device A method is disclosed for lubricating surfaces which are in temporary frictional contact which comprises introducing between said surfaces a lubricating liquid which can be solidified by heat or radiation and, after said temporary contact is broken, then ... | 12/18/1979 |
| 4147749 | Varied orientation of fibers Fibers are produced from synthetic polymeric materials having randomly produced sections of high and low orientation and varying cross-section areas. The varied orientation and cross-section areas are produced by quickly cooling the fiber and drawing said... | 04/03/1979 |
| 4113821 | Process for preparing high strength polyamide and polyester filamentary yarn Preparation of improved yarns from synthetic linear polymer filaments by melt spinning followed by substantially immediately heating said filaments above their second order transition temperature and drawing said filaments substantially instantly at a tem... | 09/12/1978 |
| 4081948 | Manufacture of bulked yarn Textile filaments are melt-spun, formed into a yarn, heated, cooled and false twisted while being simultaneously drawn, the upstream propagation of twist from the false twist device being arrested at the entry to the heater and the draw point of the yarn ... | 04/04/1978 |
| 4044089 | Process and apparatus for producing thick and thin filaments A process and apparatus for producing thick and thin filaments wherein the deniers of the thick portions of the filaments are randomized by passing an undrawn nylon feed yarn from a supply package under tension through the nip in a feed/cott roll combinat... | 08/23/1977 |
| 4035879 | Apparatus for producing texturized yarns An apparatus for texturizing an initial rapidly melt-spun and preoriented thermoplastic yarn, especially a linear polyester yarn, wherein the initial yarn is subjected to draw-texturizing in a residual stretching stage with heating of the running yarn fol... | 07/19/1977 |
| 4022860 | Method for producing arcuately curved film casings A method for producing arcuately curved film casings particularly suitable for a foodstuff such as meat or the like, by an inflation process, wherein a non-stretched resin tube is advanced along and in contact with a circumferential surface of a cylindric... | 05/10/1977 |
