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| Number | Title | Issue Date |
| 4170057 | Method of making a dynamoelectric machine An electric motor in which concentricity between stator and rotor is maintained solely by frictional forces between radial faces of the motor's end shields and radial faces of the stator. The motor is assembled by positioning the rotor in the stator by sh... | 10/09/1979 |
| 4164670 | Sealed motor mount for hand held device A motor assembly is provided for a blind tube mounting the tube having one open end with a tapered inner surface and an opening through the tube downstream of the end and facing the surface. A switch wiper is movably mounted in the opening. The tube may b... | 08/14/1979 |
| 4164673 | Bearing made of stamped (embossed) sheet iron A "bell-shaped" type of bearing of swaged sheet metal in the form of a container bordered by a cylindrical skirt having a central duct for the accommodation of a bearing bush is held to a rotor magnetic circuit of an electric machine by at least two tie r... | 08/14/1979 |
| 4162414 | Generator unit with built-in thermally protected voltage regulator A frame member for the voltage regulator spaces the latter from the stator core and from an insulating plate on the bearing cover which also supports the voltage regulator, so as to maintain an air space between the stator core and the frame member which ... | 07/24/1979 |
| 4152612 | Electric motor with operation-indicating means A small electric motor, for example for driving a clock comprises a capsule within which are provided a stator, a rotor and a deceleration gear train. One wheel in the deceleration gear train bears a pattern on its periphery for indicating the state of op... | 05/01/1979 |
| 4140934 | Power terminal structure for stator component of high-output turbo-generator A stator conductor terminal assembly is located at the underside of the housing of a three-phase turbo-generator for leading out the phase windings from the stator coil head. The assembly includes three fully insulated liquid-cooled tubular lead-off condu... | 02/20/1979 |
| 4136432 | Mobile electric power generating systems An improved mobile electric power generating system comprising a substantially enclosed trailer for housing a power plant is disclosed. The improvements reside in removable means permitting access to the interior of the trailer enclosure for facilitating ... | 01/30/1979 |
| 4127785 | Miniature motor An educational electric motor adapted to be easily assembled and disassembled, comprising a three-part case formed from a central magnetic body connected at each end with transparent front and rear covers. Tape or clamping members are used to connect toge... | 11/28/1978 |
| 4118644 | Electrical machinery An electrical machine, such as a motor or generator, with a rotor is manufactured by first deep drawing the housing as two separate members from sheet metal, such as steel sheet metal. As a result of the deep drawing, each housing member is provided with ... | 10/03/1978 |
| 4116091 | Drive for an electric rail motor car An improved drive for driving the axles of an electric rail car wherein the drive includes an electric motor having a stator and a rotor arranged between the axles of the rail car and transmissions each arranged at an end of the shaft of the rotor and eac... | 09/26/1978 |
| 4110644 | Dynamoelectric machine end shield arrangement An electric motor having a laminated stator core, a pair of formed end shields cemented to the stator core, and a rotor journaled in the end shields is provided with mounting tabs for the end shield pair that mate or intermesh with one another when positi... | 08/29/1978 |
| 4104551 | Means for collecting moisture in canned electric motors An explosion-proof canned electric motor for use at elevated temperatures wherein the upper portion of the motor housing contains the stator windings and the rotor and is connected with a terminal box by means of a tubular heat barrier. The terminal box i... | 08/01/1978 |
| 4100440 | Alternator-rectifier-regulator unit or mushroom shape for vehicular service The combination of the brush holder of the alternator and the voltage regulator into a unitary structure mounted on a cover fitting over a hole in the alternator casing enables the complete assembly to be economically made in the mushroom shape convention... | 07/11/1978 |
| 4088914 | Electric motor An electric motor of a construction, wherein conductive wires are wound around the outer periphery of an armature core substantially in parallel with a rotor shaft and in such a manner that the terminal connection part of the winding may be provided in th... | 05/09/1978 |
| 4088910 | Geared motor assembly Synchronous motor has molded coil spool enclosed in telescoping metal field cups which have interdigitating teeth forming pole pieces around the central opening in the spool. A closed end of the spool has a bearing for one end of a shaft carrying a perman... | 05/09/1978 |
| 4087707 | Heated air dissipating device for motor use in a battery-powered forklift truck A device exhausting heated air generated by a heat source in a forklift truck, particularly a device discharging or exhausting heated air generated by an electromotor powered with batteries, which motor is placed in an almost covered space in a forklift, ... | 05/02/1978 |
| 4086510 | Flat miniature dynamoelectric machine A flat miniature dynamoelectric machine comprises a flat rotor with an assembled coreless coil, a commutator having an exposed portion for sliding contact with brushes and integrally carrying the rotor, a shaft on which the commutator is mounted together ... | 04/25/1978 |
| 4082972 | Small synchronous electric motor An electric motor, particularly a small synchronous motor, which includes a stator made in two identical portions designed to be joined face-to-face, each portion stamped from sheet metal to form a number of pole teeth as well as members for interconnecti... | 04/04/1978 |
| 4081704 | Powered hand-held tool with unitary sub-assembly mounted by the tool housing sections A cordless electric drill has a housing formed by two clam-shell sections secured together by a plurality of fasteners. These housing sections define a closed motor and gear compartment which receives a sub-assembly, the latter including a generally U-sha... | 03/28/1978 |
| 4080541 | Electric starter motor for an engine A starter motor, particularly for internal combustion engines, has, as usual, a motor housing and a drive housing, the latter being provided with a mounting by which it can be fitted to the engine. However, instead of the usual method of joining together ... | 03/21/1978 |
| 4079275 | Oil-cooled motor This invention provides an oil-cooled motor, the housing of the motor comprising an oil storage chamber and at least one passage communicating with the storage chamber. The storage chamber is connected with one end of the armature shaft of the motor, whil... | 03/14/1978 |
| 4076989 | Housing and stator assembly for a dynamoelectric machine A cylindrical case for a dynamoelectric machine has an open axial end and an inner axial stop surface inside said end. A stator assembly has peripheral ears abutting the inner axial stop surface and a guide ear projecting radially into an axial guide chan... | 02/28/1978 |
| 4074159 | Dynamo-electric machine An improved dynamo-electric machine such as an electric motor is disclosed including a novel commutator configuration and novel means for aligning a first machine housing relative to a second machine housing. The commutator includes an insulating member h... | 02/14/1978 |
| 4071788 | Dynamoelectric machine field assembly A field assembly for a dynamoelectric machine, particularly for electric engine cranking motors. The field assembly is comprised of a one piece field frame member formed of a high density compacted atomized iron powder. The one piece frame has a generally... | 01/31/1978 |
| 4055778 | Generator housing A generator housing has a cast cup-shaped member which has an axis and an open end closed by a bearing plate. A cylindrical portion of the cup-shaped member is provided with three protuberances angularly spaced 120° apart from each other about the axis o... | 10/25/1977 |
| 4048530 | Electric motor with plastic encapsulated stator An electric motor having a stator and a rotor in which the stator is formed with an encapsulating hardened plastic shell formed with a through aperture in which the rotor is positioned and which has portions that accurately concentrically support the moto... | 09/13/1977 |
| 4045697 | Plastic closure cap for electric motor A plastic closure cap for an electric motor comprising a central disc portion for closing one end of a stator cavity of the motor, a peripheral rim portion which engages the periphery of the stator to mechanically secure the closure cap thereto, and a thr... | 08/30/1977 |
| 4032806 | Battery powered power tools A battery powered power tool which includes a housing having one portion for journaling the motor and another portion detachably connected thereto, for carrying the battery pack. Suitable plug and socket means are provided in each of the housing portions,... | 06/28/1977 |
| 4028571 | Control mechanism for remotely mounted motor A control mechanism for a remotely mounted motor, such as an antenna rotator, is contained withi n a molded housing having a cover and base, and includes an indicator motor which rotates a switch assembly to a preselected location. The indicator motor is ... | 06/07/1977 |
| 4017964 | Method of manufacturing electrical machinery having a rotor An electrical machine, such as a motor or generator, with a rotor is manufactured by first deep drawing the housing as two separate members from sheet metal, such as steel sheet metal. As a result of the deep drawing, each housing member is provided with ... | 04/19/1977 |
| 4015154 | Motor and method for making same In a method for making a motor, wherein a plurality of lamellar ring plates each having plural teeth extending outwardly from its inner ring portion are laminated, coils are wound on every tooth, and then inserted in a ring which are also made of a plural... | 03/29/1977 |
| 4015155 | Cover and base arrangement for an electrical machine The invention is directed to a base and cover arrangement for an electric machine. The cover is insulated against structure-borne sound and the machine with its base and cover arrangement is configured of elements which can be assembled by the building bl... | 03/29/1977 |
| 4005320 | Battery-powered electric motor assembly A disclosure is made of an electric motor assembly in which a motor casing containing a motor and a battery casing housing one or more batteries are coupled in a manner so that a motor energizing circuit is turned on or off by relative rotational displace... | 01/25/1977 |
| 3988622 | Dynamo-electric machine with prestressed laminated stator component The laminated stator component of a dynamo-electric machine is prestressed in such manner as to free the laminations from temperature-induced compressive stresses that otherwise may result in displacement of the laminations. In particular, the stator lami... | 10/26/1976 |
| 3982146 | Fluid cooled commutated electric motor A commutated electric motor, which motor is cooled by the fluid which it pumps. The motor has a molded end cover construction, the material being the bearing material, and providing for guiding of the brushes. Torsion springs are utilized as the sole bias... | 09/21/1976 |
| 3979822 | Process of manufacturing an electric motor A method of making a motor includes placing radially deformable support cuffs around the protruding winding portion of the stator windings, inserting a core therethrough, placing the assembly in a hollow mould and closing the mould to press the cuffs radi... | 09/14/1976 |
| 3958140 | Generator containment system In a generator containment system, a stator member is enclosed within and turnable in a surrounding outer member, with an energy absorbing structure interconnecting the members so that, in the event of a burst or seized rotor, journaled within said member... | 05/18/1976 |
| 3946260 | Motor construction A compact AC-DC motor comprising a housing having a center section and respective end bells, each having a recess therein. A stator is received in the housing and extends into the recess in one end bell and a magnetic pole piece is similarly received in t... | 03/23/1976 |
| 3939369 | Housing for starter motor A housing is provided for hand-held starter motors, such as those commonly in use for starting model airplanes by imparting a torque to the spinner or nose cone of the airplane. The housing is provided with a guard to protect the hand holding the motor du... | 02/17/1976 |
| 3937293 | Drive arrangement for a track-bound electric self-propelled vehicle A drive arrangement for a track-bound self-propelled vehicle includes a separate, high-speed electric propulsion motor for each driving wheel. The pinion of the propulsion motor forms the sun gear of a planetary drive. A stationary axle is provided for th... | 02/10/1976 |
