Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 7239060 | Brush DC motors and AC commutator motor structures with concentrated windings Structures of direct current motors or ac commutator (Universal) motors which use a concentrated winding on the rotor with coils wound around the teeth. The number of commutator segments is higher than the number of rotor teeth. Several coils are wound around the sa... | 07/03/2007 |
| 7183683 | Inner magnet of a magnetic coupling An inner magnet assembly for a rotary magnetic coupling, the inner magnet assembly having an inner ring body with magnet guides, magnets and an overlying sleeve. ... | 02/27/2007 |
| 6974522 | Method and apparatus for mounting a plurality of magnet segments on a back ring A method and apparatus for assembling permanent magnet segments and a back ring wherein a fixture holds segments in circumaxially spaced relationship, adhesive is applied to the segments, externally from pressure sensitive adhesive tape and the fixture then expands ... | 12/13/2005 |
| 6903475 | Stator assembly with an overmolding that secures magnets to a flux ring and the flux ring to a stator housing A stator assembly for an electric motor includes a stator housing, an expandable flux ring inserted into the stator housing and a plurality of magnets on an inner surface of the flux ring. Overmold material is molded around the magnets in the flux ring, such as by i... | 06/07/2005 |
| 5475276 | Electric rotating machine An electric rotating machine with a lightweight and low cost yoke which has sufficient durability to be used under high vibration environments. A tubular yoke for electric rotating machine has a pair of lid portions laid on both axial ends of a tubular po... | 12/12/1995 |
| 5473210 | Stator for miniature motors A stator for miniature motors having a permanent magnet fixedly fitted to the inner circumferential surface of a housing formed into a bottomed hollow cylindrical shape, in which the circumferential surface of the housing consists of two opposing flat par... | 12/05/1995 |
| 5121021 | Frame and magnet assembly for a dynamoelectric machine A frame and permanent magnet assembly for a dynamoelectric machine where the frame carries a plurality of permanent magnets. The frame is formed of iron powder particles that are bound together by a thermoplastic material. In the manufacture of the assemb... | 06/09/1992 |
| 4150312 | Permanent magnet stator D.C. dynamoelectric machine A disclosed process includes arranging field yoke segments, pole face segments, and one or more pieces of ceramic magnet material so that the yoke segments and pole face segments can be relied upon to establish low reluctance paths for magnetic flux assoc... | 04/17/1979 |
| 3988623 | Case for a small-sized electric motor In a case for a small-sized motor, there are provided projections and convex portions in the cylindrical portion of the case for holding permanent magnets in the case without using any binding agent, springs or screws.... | 10/26/1976 |
