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An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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| Number | Title | Issue Date |
| 5134840 | Twisted yarn product A randomly entangled, plied yarn having a first yarn strand and a second yarn strand wherein at least one of the first yarn strand or the second yarn strand is unidirectionally twisted in a first direction of twist, the plied yarn having spaced-apart spli... | 08/04/1992 |
| 5131218 | Sinking/floating rope A unique fishing rope comprising floating and sinking portions. The sinking portion blended yarns made up of a blend of first and second non-metallic synthetic filaments in proportions to yield a sinking rope portion having a specific gravity greater than... | 07/21/1992 |
| 4965919 | Potential bulky polyester associated bundles for woven or knitted fabric and process for production thereof Potential bulky polyester associated bundles or yarns for woven or knitted fabric include spontaneously heat extensible multi-filament A and heat shrinkable multi-filament B. The associated bundles are interlaced at 20-100 interlaces/m. For multi-filament... | 10/30/1990 |
| 4876818 | Marked fishing net and method for making same A fishing net includes a cord having a multiplicity of strands including an identification strand marked at spaced intervals with sequential numerical codes. The preselected strand is substantially inextricably incorporated in the cord so that the presele... | 10/31/1989 |
| 4827708 | Wire rope A wire rope is constructed so that the twisting moment generated in the rope per unit load decreases from one end of the rope to the other . This is accomplished by varying the length of lay along the rope.... | 05/09/1989 |
| 4790136 | Method and apparatus for the manufacture of glass fiber strand roving A glass fiber bulk strand roving that is made up of a multiplicity of strands, each of which is made up of a plurality of individual fibers, for example, 200 of such fibers. Each strand of the roving has a multiplicity of rather long, axially extending lo... | 12/13/1988 |
| 4790129 | Ground control A cable bolt for ground control which is made from individual twisted wires which may be obtained from destranding a wire strand, the cable bolt being made by twisting the wires in a direction opposite their normal twist, the cable bolt so formed having a... | 12/13/1988 |
| 4776162 | Method and apparatus for the manufacture of glass fiber bulk strand roving A method and apparatus for the manufacture of a glass fiber bulk strand roving which is made up of a multiplicity of strands, each of which is made up of a plurality of individual fibers, for example, 200 of such fibers. Each strand of the roving has a mu... | 10/11/1988 |
| 4741151 | Method and apparatus for the manufacture of glass fiber bulk strand roving A glass fiber bulk strand roving that is made up of a multiplicity of strands, each of which is made up of a plurality of individual fibers, for example, 200 of such fibers. Each strand of the roving has a multiplicity of rather long, axially extending lo... | 05/03/1988 |
| 4738096 | Metal cord An open type metal cord has a plurality of cord units each constituted by at least one preformed metal wire member. The wire members within a given cord unit have the same preforming ratio but have a different ratio from that of the wire members within an... | 04/19/1988 |
| 4724664 | Method and apparatus for producing a flocked thread or yarn, and flocked thread or yarn manufactured thereby A method and apparatus for producing thread or yarn-like material by electrostatically flocking it or covering it with fibers. Grounded base or carrier threads that are provided with adhesive are moved through an electrostatic field of high voltage, where... | 02/16/1988 |
| 4712366 | Denier-mixed composite yarn, denier-mixed special thick and thin yarn, false twist yarn and denier-mixed shrinkage-mixed composite yarn The present invention relates to a denier-mixed composite yarn containing 20 weight percent or more coarse filaments whose single filament fineness is 3 deniers or more and 5 weight percent or more fine filaments whose single filament fineness is 1.5 deni... | 12/15/1987 |
| 4674271 | Apparatus and process for converting a continuous multifilament yarn to a staple-like yarn The present invention pertains to a process and product thereof, and an apparatus, for converting a twisted, continuous filament, multifilament yarn into a staple-like yarn. The process is carried out by needling the yarn with a barbed needle in order to ... | 06/23/1987 |
| 4628682 | Spun fibre yarn and method for its manufacture A twisted spun fibre yarn with interlaced plies, in which the fibres have a spiral structure having open zones and closed zones, the cohesion factor of the spun fibre yarn being less than 100 and preferably between 20 and 80, the torsion factor of the spu... | 12/16/1986 |
| 4528809 | Loop chenille type yarn Apparatus and method for making loop chenille type yarns and yarns produced thereby are disclosed. An elongated spindle having a tapered needle surface at one end thereof is provided. The spindle has a passage therein in communication with the needle surf... | 07/16/1985 |
| 4513564 | Yarn A yarn comprised of a number of threads twisted with each other is provided with a plurality of feathers, the quill portions of which are tightly inserted into twisted threads and the feather portions of which project outwardly from the twisted threads to... | 04/30/1985 |
| 4495244 | Continuous filament slub yarn Continuous filament yarn of textile utility has slubs formed at randomly spaced intervals along the length of the yarn, with each filament having a main body section extending along the length of the filament and at least one wing member extending from th... | 01/22/1985 |
| 4489542 | Spun like fiber yarn produced by interlacing Spun-like fiber yarn with interlaced threads, in which the fibers are of the same length. The spun yarn has alternating open, relatively bulky zones and closed, relatively compact zones. The open zones have a non-twisted structure with parallel strands. I... | 12/25/1984 |
| 4414801 | Process for making spun-like yarn with variable denier filaments A yarn having variable denier filaments with thick and thin regions is drawn at a draw ratio selected to break filaments in the thin regions. This may be done while false-twist texturing. The resulting broken ends protrude from the yarn, giving a spun-lik... | 11/15/1983 |
| 4381426 | Low crosstalk ribbon cable Several embodiments of reduced crosstalk ribbon cable having alternating twisted and straight sections of indefinite length are disclosed, crosstalk being reduced by differing starting positions of alternate twisted pairs, differing lay of alternate twist... | 04/26/1983 |
| 4345424 | Textured novelty yarn and process An effect yarn and process for manufacture thereof is disclosed when the effect comprises a slub that is formed after the yarn leaves the yarn package during later knitting or weaving operations. The effect yarn is particularly useful since it processes t... | 08/24/1982 |
| 4342189 | Apparatus for producing a bundle of fibrous elements Disclosed is an apparatus for producing a bundle of fibrous elements, at least some of which are uneven in the thickness in the axial direction thereof, namely some of which include thick portions having a larger sectional area and thin portion having a s... | 08/03/1982 |
| 4333306 | Steel cord A steel cord composed of a plurality of material wires intertwisted, having loosely intertwisted portions and tightly intertwisted portions alternately at regular intervals so as to facilitate penetration of a rubber compound into the central part thereof... | 06/08/1982 |
| 4330591 | Wool-like yarn with moisture transport A yarn for producing fabrics with a wool-like hand, by combining textured filaments with longer filaments preferably of larger average denier. The longer filaments thus protrude in loops from the yarn bundle, and have spiral cross-sections.... | 05/18/1982 |
| 4300344 | Feed yarn and process for the manufacture of a voluminous false twist texturized hairy yarn Multifilament feed yarns in drawable state made from fiber-forming polyester are provided which in accordance with the invention can be processed in a combined draw and false twist process to voluminous filament yarns having individual protruding filament... | 11/17/1981 |
| 4288973 | Machine for producing chenille yarn A machine for producing chenille yarn has a winding member on which turns of effect yarn are formed. A rotating disc-shaped cutter can be moved into an operative position to cut the turns on the winding member into individual lengths of effect yarn for fo... | 09/15/1981 |
| 4274251 | Yarn structure having main filaments and tie filaments Methods of making network structures include forming on one side of a sheet of thermoplastic polymer a plurality of parallel continuous main ribs and forming on the other side of the sheet in a different direction a plurality of parallel discontinuous tie... | 06/23/1981 |
| 4258542 | Bundle of fibrous elements Disclosed is a bundle of fibrous elements, at least some of which are uneven in the thickness in the axial direction thereof, namely some of which include thick portions having a larger sectional area and thin portion having a smaller sectional area. In t... | 03/31/1981 |
| 4253299 | Bulked and entangled multifilament thermoplastic yarn A bulked and entangled multifilament thermoplastic yarn and an improved process for the formation thereof which, when tufted into a fabric, presents a grass-like appearance. The yarn is made by melt spinning and water quenching filaments of a melt spinnab... | 03/03/1981 |
| 4217748 | Safe wire rope Steel wire rope used for lifting and hauling is dangerous when stressed above the breaking point, as there is a substantial quantity of energy stored in the stretched rope and when the rope breaks the stored energy causes the broken ends to whip at high v... | 08/19/1980 |
| 4184316 | Production of novelty yarns A novelty yarn having a pronounced variation in linear density is obtained by passing at least one multifilament yarn through a fluid tangling zone and by alternatingly and mechanically tensioning and relaxing the yarn within the tangling zone.... | 01/22/1980 |
| 4168298 | Yarn consisting of drawn sintered PTF fibers and woven, non-woven and knitted fabrics; filter bags; ropes; and fire-protective clothing formed therefrom A process for forming polytetrafluoroethylene yarn by (1) forming an oriented polytetrafluoroethylene film by drawing a sintered sheet from about 5 to 30 times its original length at an elevated temperature; and (2) passing the oriented film through fibrillati... | 09/18/1979 |
| 4115988 | Interlaced multifilament yarns A method and apparatus for producing interlaced multifilament yarn having an improved configuration is disclosed. When a material yarn is treated by the interlacing apparatus provided with an interlacing nozzle wherein a hollow longitudinal space is forme... | 09/26/1978 |
| 4100725 | Yarn having alternating entangled and unentangled lengths A yarn is provided which has zero twist and random lengths of tightly entangled fibers as nodes having substantially zero twist and comprising an average of about 20%-70% of a representative length of yarn, said nodes having a retentivity of at least 75% ... | 07/18/1978 |
| 4096222 | Process of treating polyester yarn to provide a pattern of portions that differ in dyeability Polyester yarn having portions which differ in dye uptake, arranged along its length in a predetermined pattern, is produced by treating portions of a spin-oriented yarn with a fluid to induce crystallization and then drawing the yarn to provide a product... | 06/20/1978 |
| 4080777 | Novelty yarns A novelty yarn having a pronounced variation in linear density is obtained by passing at least one multifilament yarn through a fluid tangling zone and by alternatingly and mechanically tensioning and relaxing the yarn within the tangling zone. The yarn c... | 03/28/1978 |
| 4059950 | Multifilament yarn having novel configuration and a method for producing the same A polyester yarn composed of a plurality of individual fibrous materials such as endless filaments or fibers. Each of these fibrous material is provided with cross-sectional thicker portions, thinner cross sectional portions and intermediate thickness-siz... | 11/29/1977 |
| 3958406 | Yarn having a basis of polyester with irregular titer Fancy polyester based yarns are disclosed, wherein polybutylene terephthalate yarns comprise one or more filaments having irregular diameters, substantially constant crystallinity over the whole length of the filament, and a Young's modulus of less than 3... | 05/25/1976 |
| 3950934 | Plumbers snake An improved plumbers snake and the method of making same of unique construction having a metal core concentrically disposed within a coiled spring wire member and an intermediate resilient body in gripping engagement with the metal core. The intermediate ... | 04/20/1976 |
