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| Number | Title | Issue Date |
| 6461023 | Focused floodlight having multi-sectional reflector surface for uniform illumination A focused floodlight is designed to provide uniform illumination throughout an emergency scene including a work area and an action area. The floodlight includes a light line and a reflector specially configured so that half the light illuminates the work ... | 10/08/2002 |
| 6226305 | Apparatus multiplexing system A multiplexing system is provided for controlling and monitoring all the electrical functions of a vehicle. The system includes a switch control unit which receives inputs from various sources and converts the inputs into digital signals which are decoded... | 05/01/2001 |
| 6075445 | High-temperature warning unit A high-temperature warning indicator is provided for attachment to a firefighter's helmet. In a preferred embodiment of the invention, the indicator is in the form of a dual-color LED mounted in the tip of a highly insulated, lightweight housing. A microp... | 06/13/2000 |
| 5888051 | Pump pressure control system A system for controlling the pressure output of an engine-driven centrifugal fire pump includes a discharge pressure sensor mounted in the discharge line of the pump. A governor varies the RPM of the engine in response to pressure changes detected by the ... | 03/30/1999 |
| 5590719 | Firefighting nozzle with foam injection system A firefighting nozzle includes a nozzle body having a having a centrally formed jet orifice at its outlet end. An annular fog spray opening concentrically surrounds the jet orifice. A jet control valve is provided for allowing selective variation of the d... | 01/07/1997 |
| 5467827 | Modular fire truck A fire truck having a flat bed includes a conveyor system for loading a number of interchangeable firefighting modules onto the bed. The conveyor system comprises a frame carrying a number of rollers or casters which allow the units to be easily slid on a... | 11/21/1995 |
| 5447203 | Remotely actuated firefighting nozzle A firefighting nozzle includes a nozzle body having a having a centrally formed jet orifice at its outlet end. An annular fog spray opening concentrically surrounds the jet orifice. A jet control valve is provided for allowing selective variation of the d... | 09/05/1995 |
| 5362022 | Air tank bracket with strap-lifting arms An air tank bracket comprises a pair of resilient, C-shaped clips projecting from an elongate, vertically mounted backplate. A footplate for supporting the neck of an air tank extends from the bottom end of the back plate. A horizontally extending cross b... | 11/08/1994 |
| 5323603 | Integrated air cycle-gas turbine engine An additional turbine, an air-to-water heat exchanger, and an air-to-air heat exchanger are added upstream of a recuperated gas turbine engine. Incoming air at atmospheric temperature is expanded and cooled in the additional turbine and then passes throug... | 06/28/1994 |
| 5261494 | Firefighting nozzle A firefighting nozzle includes a nozzle body having a having a centrally formed jet orifice at its outlet end. An annular fog spray opening concentrically surrounds the jet orifice. A jet control valve activated by a trigger is provided for allowing selec... | 11/16/1993 |
| 5212942 | Cogeneration system with recuperated gas turbine engine A turbine engine is provided with a primary surface, counterflow heat exchanger for preheating the compressed air from the compressor prior to its entry into the combustor. The recuperator includes three concentric cylindrical shells which completely enci... | 05/25/1993 |
| 5105617 | Cogeneration system with recuperated gas turbine engine A turbine engine is provided with a primary surface, counterflow heat exchanger for preheating the compressed air from the compressor prior to its entry into the combustor. The recuperator includes three concentric cylindrical shells which completely enci... | 04/21/1992 |
| 5072987 | Retractable cycle roof A retractable roof is provided for mounting on a two-wheeled vehicle such as a motorcycle. The roof comprises a flexible waterproof canopy which is removably supported by a tubular metal frame movably secured to the vehicle. The frame includes a stationar... | 12/17/1991 |
| 5031807 | Bicycle brief case A briefcase is configured as a saddle bag having two soft-sided pouches joined together by a central bridge portion. The pouches are shaped to fit within the space enclosed by the front post, the bottom brace, and the horizontal cross bar of a bicycle fra... | 07/16/1991 |
| 5014516 | Turbocharger with downstream pressure-gain combustor A pressure-gain combustor is placed in the exhaust path of the turbine in a turbocharger or turbine engine, thus increasing the pressure drop in the engine. The increased pressure drop in the engine leads to increased turbine power output when the turboch... | 05/14/1991 |
| 4966523 | Two-row pipe diffusers with boundary layer control A diffuser for a radial flow compressor includes a pair of coaxial rings, the second of which closely surrounds the first. A set of intersecting flow passages extends through the first ring, and another aligned set of flow passages extends through the sec... | 10/30/1990 |
| 4894755 | Retractable tire change lights for automotive vehicles A set of tire change lights for illuminating the tires of an automotive vehicle during a tire-changing operation comprises four lights, each of which is mounted near the wheel well above a different one of the vehicle's tires. Each light includes a light ... | 01/16/1990 |
| 4852843 | Beverage holder for attachment to vehicle heating and cooling vents A beverage holder for mounting in an automobile includes a substantially U-shaped jacket having a curved front portion, an open back portion, and a top opening for receiving a conventional beverage container. A pair of hooks or similar fasteners is provid... | 08/01/1989 |
| 4812127 | Dental hygiene teaching tool and storage device A dental hygiene teaching tool and storage device is configured as a caricatured head including a lower jaw member and an upper jaw member which is movably positioned on top of the lower jaw member. The forward portions of both the lower and upper jaw mem... | 03/14/1989 |
| 4801170 | Sun screen for attachment to a vehicle windshield A sun screen for blocking light rays and inhibiting heat transfer through the windshield of a vehicle includes a sheet of light-reflective material sized and shaped to conform to the contours of the windshield, and a pair of compression rods for securing ... | 01/31/1989 |
| 4800592 | Costume with compressible arms and legs A costume includes a pair of arm pieces, a pair of leg pieces, and an optical hood, each of which is made from a compressible tubular conduit including a helically wound coil of resiliently flexible wire material and a covering material for encasing the w... | 01/31/1989 |
| 4802069 | Retractable tire change lights for automotive vehicle A set of tire change lights for illuminating the tires of an automotive vehicle during a tire-changing operation comprises four lights, each of which is mounted near the wheel well above a different one of the vehicle's tires. Each light includes a light ... | 01/31/1989 |
| 4798936 | Waterbed heater A heater adapted for placement under the mattress of a waterbed consists of a flexible laminated pad having an upper layer of resistive elements embedded in electrical insulating material, and several subjacent layers of heat-reflective and thermal insula... | 01/17/1989 |
| 4780992 | Apparatus for cleaning pool tile An apparatus for cleaning pool tile comprises the body of a string trimmer, an abrasion member detachably mounted at the end of the rotatable drive shaft of the string trimmer in place of the usual lawn care accessory, and a dispensing unit for delivering... | 11/01/1988 |
| 4779362 | Walking sole and carrier assembly for rigid-bottomed footgear A walking sole and carrier assembly comprises a pair of walking soles for mounting beneath rigid-bottomed footgear such as ski boots, and a detachable handle for joining the soles in side-by-side relationship to one another so that they form a carrier or ... | 10/25/1988 |
