Assignee: Tri-Tech, Inc.

Location: Waterbury, CT
No. of patents: 25

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Number	Title	Issue Date
6603229	Linear actuator with threaded captivation sleeve, captive lead screw, and spring pre-load adjustment In a preferred embodiment, a linear actuator, including: front and rear end bells; a stator structure; a rotor structure having first and second bearings journaled, respectively, in cavities formed in inner surfaces of the front and rear end bells; a capt...	08/05/2003
6362547	Linear/rotary motor and method of use In a preferred embodiment, a linear/rotary motor, including: a housing; an output shaft extending from the housing; a rotary motor disposed within the housing, the output shaft being given rotational motion by the rotary motor; a linear motor disposed wit...	03/26/2002
6222294	Combinations of solenoids and motors In a preferred embodiment, an actuator, including: a shaft (34); a solenoid (24), having a coil (40) and a core (42), disposed at a first selected position on the shaft, with the core being fixedly attached to the shaft such that energization of the coil ...	04/24/2001
6211591	Linear/rotary electromagnetic device In a preferred embodiment, a linear/rotary electromagnetic device, including: a housing (20); first and second stators (22 and 40) disposed in the housing, first and second rotors (24/26 and 42/44) disposed in the housing and magnetically interacting, res...	04/03/2001
6150789	Stepper motor control In a preferred embodiment, a stepper motor control, including: a driver to drive the stepper rotor; a detector to detect a commanded step rate signal provided to the driver and to provide an output signal proportional thereto; a power control, responsive ...	11/21/2000
6146280	Spring biased universal joint A flexible joint for first and second rotating members, including: a hub fixedly connected to a proximal end of the first rotating member at a first end of the hub; the hub being constructed for the insertion in a second, opposite end of the hub of a prox...	11/14/2000
6121561	Hermetically sealed electrical switch In a preferred embodiment, a hermetically sealed electrical switch, including: a housing; a bellows having a closed end and an open end, with the open end sealingly attached to the housing such that a first volume defined by interior surfaces of the housi...	09/19/2000
5798592	Simplified electric motor construction In a preferred embodiment, in an electric motor of the type including a cup-shaped housing and a housing mounting plate, the improvement comprising: providing said cup-shaped housing and said housing mounting plate as a monolithic part. In another embodim...	08/25/1998
5611508	Horizontally adjustable microphone support A horizontally adjustable microphone support, including: a vertical support; a generally horizontal cross member attached to the vertical support; a microphone and a counterweight attached to the horizontal cross member on opposite sides of the vertical s...	03/18/1997
5465020	Integral shaft bearing and bobbin for electric motors In a preferred embodiment, in an electric motor of the type having a housing, a non-metallic bobbin upon which is wound a stator coil, a rotor having a rotor shaft fixedly attached thereto and extending therefrom, the rotor being disposed for rotation axi...	11/07/1995
5126605	Oscillating stepper motor In a preferred embodiment, an oscillating stepping motor having only one stator phase. What would otherwise be a second stator phase is a magnet fixedly disposed with respect to the rotor to produce a detent position of the rotor. When the stator is energ...	06/30/1992
4884333	Method of making a stepper motor A multi-phase stepper motor having an annular permanent magnetic rotor and a plurality of matingly engageable stator phase assemblies around the rotor. Each of the phase assemblies comprises a pair of annular pole pieces including interleaved salient stat...	12/05/1989
4841189	Stepper motor and method of making the same A multi-phase stepper motor having an annular permanent magnetic rotor and a plurality of matingly engageable stator phase assemblies around the rotor. Each of the phase assemblies comprises a pair of annular pole pieces including interleaved salient stat...	06/20/1989
4714853	Low profile electric motor An electric motor has an annular permanent magnetic rotor having rotor poles of alternating polarity around its circumference. The motor has an outer stator disposed concentrically around the outer periphery of the rotor which has an annular configuration...	12/22/1987
4482792	Sealed toggle switch A sealed toggle switch is formed of a hollow thermosetting plastic base, a metal cover closing off the base, a rocking blade, and a bat actuator handle having a ball disposed to rotate in a socket bushing in the cover and a resiliently biased finger pushi...	11/13/1984
4434330	High temperature switch A environmentally sealed snap action switch mechanism suitable for use in high temperature (900° F.+) environments comprises a casing having a flex area formed on one surface so as to be susceptible to snap-action movement. A switch is situated inside th...	02/28/1984
4404484	Electric rotating machine A self-starting unidirectional rotating machine, suitable for use as a stepping motor, has a permanent magnet rotor and a pair of finger-like pole pieces extending axially alongside the rotor. These pole pieces are disposed asymmetrically so that, for exa...	09/13/1983
4381437	Switching device A rotary switch comprises a control shaft rotatable clockwise from a neutral position to a first switch actuating position and beyond it to an overtravel position, and counter-clockwise to a second switch actuating position and beyond it to another overtr...	04/26/1983
4274026	Electric rotating machine A small electric motor including one or more field coils which cooperate with a long, thin cylindrical rotor having only a single pair of nonsalient rotor poles. A stator pole piece assembly is in magnetic flux relationship with the rotor and is provided ...	06/16/1981
4244099	Method of making an electric rotating machine An electric motor and method of making the motor, in which a unitary one-piece cylindrical housing is molded of nonmagnetic material with an H-shaped axial cross-section to provide cylindrical recesses in opposite ends of the housing. A gear train is inse...	01/13/1981
4241270	Synchronous electric motor A small two-phase motor having first and second field coils which each cooperate with a long, thin cylindrical rotor. The rotor is provided with only a single pair of nonsalient rotor poles and has a length to diameter ratio which advantageously is at lea...	12/23/1980
4087709	Electric rotating machine An electric motor or other electric rotating machine in which certain of the stator poles are of hardened magnetic material to provide the machine with a unidirectional self-starting characteristic. In certain preferred embodiments the housing for the mot...	05/02/1978
4040247	Clock drive apparatus Apparatus for driving a timing device from an external AC power source and, in the event that the AC power source fails, from an auxiliary DC source. The driving apparatus includes a pulse producing circuit which produces periodic pulses in response to ti...	08/09/1977
4004168	Electric rotating machine A self-starting unidirectional electric motor in which a pair of auxiliary stator pole members are angularly spaced from the main stator poles and are provided with a magnetic return path having a reluctance which is less than the reluctance of the return...	01/18/1977
3959628	Electrical read-out apparatus A watt-hour meter or other visual read-out apparatus which may also be read electrically through the use of a plurality of code discs and a photoelectric sensing device in spaced juxtaposition with the back sides of the discs. The sensing device is suppor...	05/25/1976

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Assignee: Tri-Tech, Inc.