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...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 7009320 | Stator of electric rotating machine A stator of a wire connection structure is capable of producing an unlimited number of non-integer turns. This stator is made by turning back first to sixth conductors on the outside of an end face of a stator iron core, and by mounting them in slots at a predetermi... | 03/07/2006 |
| 6057623 | Dynamo-electric machine having a hook shaped commutator and equalizer attached thereto A dynamo-electric machine comprises an armature having a winding composed of a wire or wires wound by a lap winding method through slots extending in the axial direction formed on the outer circumferential surface of a core secured to a shaft, a commutato... | 05/02/2000 |
| 5654602 | Generator winding A three phase four pole synchronous generator winding is shown, having three parallel connected circuits per phase, for a stator with 63 winding slots, each circuit having seven series connected coils, with particular application to very large nuclear or ... | 08/05/1997 |
| 4857790 | Winding patterns for armatures A winding pattern for a motor rotor comprising an armature mounted on a rotary shaft and provided with a plurality of longitudinal slots defined a plurality of core teeth; a commutator mounted on the rotary shaft at a longitudinally spaced relationship to... | 08/15/1989 |
| 4707629 | Rotary converter having dual-winding rotor The present invention includes a rotary converter for converting direct current to altenating current. The rotary converter includes a rotor and a stator. The rotor includes a shaft, a commutator concentric with the shaft, and an armature core concentric ... | 11/17/1987 |
| 4678931 | Armature winding for large turbine generator A multi-layer armature winding for large turbine generator is wound with individual diamond coils around to the point where the sides of initially wound diamond coils lying in upper armature slot positions interfer with the placement in lower slot positio... | 07/07/1987 |
| 4409507 | Dynamoelectric machines for multiples of three phases with unbalanced fractional-slot windings A winding technique for multiphase machines is presented that utilizes a core of Q slots and P poles for M phases where Q/M is an integer but the number of slots per phase per pole Q/M/P is a non-integer expressible as a fraction N/D reduced of common fac... | 10/11/1983 |
| 4360750 | Rotor for an electrical machine A rotor device for use in an electrical machine is disclosed which includes a liquid-cooled single or multi-layer winding whose end turns are electrically interconnected in the rotor end coil through connectors. The connectors form portions of cooling liq... | 11/23/1982 |
| 4132914 | Six-phase winding of electric machine stator An arrangement in multiphase electrical machines in which a six-phase winding is provided with reduced maximum voltage between the terminals in the end portion. Three-phase windings are wound in opposite directions such that if one three-phase winding is ... | 01/02/1979 |
| 3999093 | Rotating electric machine having a controlled gradient winding and a circumferentially segmented magnetic core armature A high voltage rotating electric machine having an armature that includes a continuous gradient a-c winding and comprising a high permeability magnetic material subdivided in the circumferential direction into a plurality of segments. Each segment is elec... | 12/21/1976 |
