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| Number | Title | Issue Date |
| 6965818 | Mobile energy management system A recreational vehicle includes a chassis having a living space, an electrical system for providing electrical power to the living space, an air conditioner for cooling the living space, a heater for heating the living space, and a plurality of appliances within the... | 11/15/2005 |
| 6919518 | Phase flux barriers for transfer switch A transfer switch that includes output contacts, primary input contacts, secondary input contacts and a switch stack. The switch stack alternately connects the output contacts to the primary input contacts and the secondary input contacts via at least one conductive... | 07/19/2005 |
| 6798627 | Engine generator set systems and methods providing load power fault protection An engine-generator set includes a load power fault protector circuit that detects when the power delivered to the load reaches a predetermined maximum power value, and substantially prevents the load power from exceeding the predetermined maximum value by decreasin... | 09/28/2004 |
| 6765157 | Transfer switch with improved actuator A transfer switch that includes output contacts, primary input contacts, secondary input contacts and a toggle mechanism. The toggle mechanism includes moving contacts that alternately connect the output contacts with the primary and secondary input contacts. The tr... | 07/20/2004 |
| 6737762 | Generator with DC boost for uninterruptible power supply system or for enhanced load pickup A local power generation system generates a substantially DC voltage at an inverter input, which is modulated to generate a resulting output AC power signal to a load. The inverter input voltage may be obtained from an engine generator, providing an AC power signal ... | 05/18/2004 |
| 6700087 | Arc chute assembly An arc chute including a first side wall having a plurality of holes, a second side wall having a plurality of holes and spaced apart from the first side wall, and a plurality of arc chute plates mounted between the first and second side walls. Each of th... | 03/02/2004 |
| 6639331 | Parallel generator power system A system for connecting one of a plurality of parallel connected generator sets to a common bus. The system includes a separate module associated with each of the plurality of generator sets. When a control module receives a ready-to-load signal from the ... | 10/28/2003 |
| 6534737 | Contact closing speed limiter for a transfer switch A transfer switch that absorbs the kinetic energy of a toggle mechanism within the transfer switch just before moving contacts on the toggle mechanism engage a set of stationary contacts. The transfer switch includes output contacts, primary input contact... | 03/18/2003 |
| 6355986 | Generator set control apparatus and method to avoid vehicle resonances A generator set control system for minimizing vehicle noise and vibration. The system has sensors at different locations in a vehicle, a generator set with a generator set speed controller, and a system controller operatively connected to the sensors and ... | 03/12/2002 |
| 5815058 | Contact enhancement apparatus for an electric switch A contact enforcement apparatus for an electric switch includes two electro-magnetic bars. The first electro-magnetic bar is disposed between a crossbar of the switch and a moveable contact arm. The crossbar carries the moveable contact arm and the first ... | 09/29/1998 |
| 5784267 | Quasi-sine wave and stepped square wave AC to AC converter A switched AC to AC converter circuit comprises a rectifying circuit, which generates a rectified output signal from an alternating input voltage signal, and a switching circuit for controllably switching the polarity of the output from the rectifying cir... | 07/21/1998 |
| 5771682 | Thermal reactor A thermal reactor for reducing exhaust emissions generated by an engine. The thermal reactor preferably includes an outer housing and an inner core mounted within the outer housing. The inner core defines an expansion chamber which receives exhaust gas fr... | 06/30/1998 |
| 5717273 | Insulating armature end turn cap The present invention is an insulating end cap which provides mechanical support to the end turns of the coils. The mechanical support provides insulation by axially, radially and diametrically separating end turns of coils within phases, and end turns of... | 02/10/1998 |
| 5701070 | Electrical generator damage protection apparatus and method with circuit breaker trip initiation An electrical generator damage protection apparatus is provided. The protection apparatus includes a circuit breaker which opens and closes an electrical circuit in response to a breaker control signal. A controller is operatively coupled to the circuit b... | 12/23/1997 |
| 5652416 | Mechanically held electrically or manually operated switch An electric transfer switch includes a linear actuator operable to switch a plurality of movable contacts from a normal power supply to a standby emergency power supply, when the normal power supply has a power outage, so as to continuously serve electric... | 07/29/1997 |
| 5638948 | Electric transfer switch having three-position toggle mechanism An electric transfer switch includes a three-position toggle mechanism and a crossbar which is mounted on the toggle mechanism. The crossbar carries a plurality of moveable contacts and is rotated by the toggle mechanism. The moveable contacts normally co... | 06/17/1997 |
| 5619956 | Auxiliary power unit for hybrid electric vehicle An auxiliary power system includes an engine balance system, an integrated alternator/starter, a thermal management system, noise-vibration-harshness control system, an emissions/fuel economy system, an APU master control unit, and a vehicle control syste... | 04/15/1997 |
| 5606946 | Auxiliary power unit for a hybrid electric vehicle An auxiliary power system includes an engine balance system, an integrated alternator/starter, a thermal management system, noise-vibration-harshness control system, an emissions/fuel economy system, an APU master control unit, and a vehicle control syste... | 03/04/1997 |
| 5605129 | Electrically controlled actuator apparatus and method An electrically controlled actuator includes a rotor detachably mounted on a rotating shaft, and a stator disposed around the rotor. A fluid flow plate is mounted on the rotating shaft and opens/closes a fluid passageway. A spiral spring is mounted on one... | 02/25/1997 |
| 5563802 | Generator power system and method An integrated power system includes an engine/generator power supply integrated with storage batteries to provide household-like AC power. For a small load demand, the storage batteries are used to provide electricity. For a large load demand, the engine/... | 10/08/1996 |
| 5552754 | Catch for electrical contact utilizing electromagnetic forces An electric switch includes a plurality of moveable contacts and a plurality of stationary contacts which firmly contact with the moveable contacts in a normal closed position by a spring, such as a leaf spring or a compression spring. The electric switch... | 09/03/1996 |
| 5509393 | Vacuum lockoff apparatus and method A system for regulating fuel flow in a fuel line from a supply of fuel to an engine, comprising: a fuel regulator disposed in the fuel line intermediate of the engine and the fuel supply regulating the flow of fuel to the engine; vacuum lockoff apparatus,... | 04/23/1996 |
| 5495907 | Engine driven generator set system having substantially no roll torque An engine driven generator set system includes a generator which includes a rotor and a stator which rotate in opposite directions so that vibratory roll torques are eliminated during generator set operation.... | 03/05/1996 |
| 5486751 | Electronic trimming voltage regulator A circuit and a method for controlling excitation current to the field winding of a generator or motor. An uncontrolled current source supplies sufficient excitation current to maintain the generator output voltage at a level slightly below the seated vol... | 01/23/1996 |
| 5469820 | Auxiliary power unit for a hybrid electrical vehicle An auxiliary power system includes an engine balance system, an integrated alternator/starter, a thermal management system, noise-vibration-harshness control system, an emissions/fuel economy system, an APU master control unit, and a vehicle control syste... | 11/28/1995 |
| 5433175 | Generator air flow and noise management system and method An engine generator set apparatus including an internal combustion engine including a drive shaft driving an electrical generator, the engine and the generator being disposed along a longitudinal axis. A housing substantially enclosing the engine and gene... | 07/18/1995 |
| 5420469 | Brush air seal A generator engine set includes a brush partition for separating a space defined between an air blower housing and an enclosure into two areas so that an air flow from one area to the other area is substantially prohibited. The brush partition includes a ... | 05/30/1995 |
| 5390068 | Microprocessor based integrated generator set controller apparatus and method An electrical generator system integrated controller device utilizing PID control and capable of regulating voltage or current, and frequency simultaneously. The device utilizes a micro-controller (30.1) to monitor the engine generator set (20), then dete... | 02/14/1995 |
| 5368000 | Engine efficiency improvement system A multiple-cylinder combustion engine includes a counter rotating system eliminating any vibratory pitch, yaw, and roll torques. The net angular momentum of all rotating parts in the engine is equal to zero. The multiple-cylinder combustion engine activat... | 11/29/1994 |
| 5333678 | Auxiliary power unit The present invention is directed to an auxiliary power unit for use with a vehicle, typically a truck. The truck has a cab and a sleeper to which the auxiliary power unit provides auxiliary air conditioning and heating. The truck also has a cab evaporato... | 08/02/1994 |
| 5297025 | Power supply assembly A power supply assembly for converting input power into desired output power comprises a plurality of printed circuit boards each having oppositely facing front and back major surfaces. The back major surfaces of the first and second circuit boards are su... | 03/22/1994 |
| 5274292 | Collector ring assembly and method A dynamo assembly comprising a stator assembly and rotor assembly as shown. The preferred rotor assembly comprises two end caps, a single wire strand, a collector ring assembly and a plurality of laminants. The two end caps are preferably identical to one... | 12/28/1993 |
| 5193501 | Method for assembling and preloading shaft assemblies in reciprocating internal combustion engines A method for assembling and preloading shaft assemblies that are supported by bearings in reciprocating internal combustion engines and the resulting improved shaft assembly. The method is comprised of the steps of: placing a spring element (21) on one en... | 03/16/1993 |
| 5175458 | Insulator for terminating electrodynamic stator coils A stator termination assembly comprising a gate member, a terminator, terminals, a terminator cover and electrical plug assemblies. The preferred assembly comprises an arcuate gate member having that operate to lead a stator magnet wire extension from sta... | 12/29/1992 |
| 5168208 | Microprocessor based integrated generator set controller apparatus and method An electrical generator system integrated controller device utilizing PID control and capable of regulating voltage or current, and frequency simultaneously. The device utilizes a micro-controller (30.1) to monitor the engine generator set (20), then dete... | 12/01/1992 |
| 5165376 | Tapered governor arm/governor shaft joint An apparatus for use as a governor arm/governor shaft joint in a governor system (10) and a method for zeroing out the tolerances in a governor system (10) used in reciprocating internal combustion engines. The apparatus is comprised of a governor shaft (... | 11/24/1992 |
| 5146889 | Governor assist mechanism An apparatus for assisting a primary governor device (20) on an engine at certain load conditions or during transient loading is disclosed. The primary governor device has a control arm (12) which is moved by a primary governor spring (15) via a primary g... | 09/15/1992 |
| 5144182 | Skewed rotor assembly A dynamo assembly comprising a stator assembly and rotor assembly as shown. The preferred rotor assembly comprises two end caps, a single wire strand, a collector ring assembly and a plurality of laminants. The two end caps are preferably identical to one... | 09/01/1992 |
| 5125236 | Combined generator set and air conditioning compressor drive system A combined generator set and air conditioning compressor drive system is disclosed for use in a mobile vehicle. The disclosed device includes an auxiliary engine, a compressor, and a motor-generator. When an external source of electricity is unavailable, ... | 06/30/1992 |
| 5096153 | Shock and vibration mount A shock and vibration mount including a mounting bolt, a first elastomer member, a support bracket, and a second elastomer member. The first elastomer member is interposed between the bottom surface of a mechanism which vibrates and the top surface of the... | 03/17/1992 |
