40results about How to "Reduce wattage" patented technology

The present invention relates to a variable-torque magnetorheologically actuated prosthetic knee which utilizes a plurality of interspersed and alternating rotors and stators to shear magnetorheological fluid in gaps formed therebetween. Advantageously, by operating in the "shear mode" there is substantially no or negligible fluid pressure buildup or change. Moreover, the multiple MR fluid gaps or flux interfaces desirably allow for the production of a large torque at low speed-eliminating the need for a transmission-and also for a wide dynamic torque range. One embodiment of the invention allows the rotors and / or stators to close the gaps therebetween to create a frictional torque component, thereby forming a "hybrid" braking system which provides a total torque or damping which is a combination of viscous torque and frictional torque.

A power control apparatus comprises a transducer having an output (12,13) which is connected to a remotely activated device (25) mounted in a mains consumer unit (14). When a predefined parameter is detected, the device (25) is activated to connect a load (29) between the switched live output (18) of a residual current device RCD (15) and the neutral input (17) thereof, thereby creating an imbalanced current flow on the live and neutral output terminals (18,19) of the RCD (15) which causes contacts (20,21) inside the RCD (15) to disconnect the supply to an appliance circuit (22).

A compact dual ellipsoidal reflector (DER) system for illuminating a target with rays of electromagnetic radiation comprises first and second molded module. The first molded module has at least a first ellipsoidal reflector section comprising an optical axis, a first focal point and a second focal point. The rays of electromagnetic radiation being directed substantially proximate to the first focal point of the first ellipsoidal reflector section and substantially converge at the second focal point of the first ellipsoidal reflector section. The second molded module has at least a second ellipsoidal reflector section comprising an optical axis, a first focal point and a second focal point. The second ellipsoidal reflector section being positioned and oriented with respect to the first ellipsoidal reflector section to receive at least a portion of the rays of radiation reflected from the first ellipsoidal reflector section and reflect the portion of the rays of radiation to the second focal point of the second ellipsoidal reflector section. The first molded module is placed together with the second molded module to form the compact DER system.

An assembly of LED luminaires is distributed at a sports venue, includes key, back, and fill light sources in such a way as to provide modeling within a significant portion of the playing area of the sports venue, uses beam types narrower than previously used, and achieves efficiencies higher than previously attained, while also reducing glare and spill light.

The present invention provides a far infrared heat emitting article for a sauna. The article includes a heating element, for emitting far infrared heat in the far infrared wavelength range. It also includes a supporting-encapsulating element, for supporting the heating element thereon and for encapsulating the heating element therein, able to distribute the far infrared heat substantially evenly thereover. The article further includes a heat-dispersing coating, extending over and coating the supporting-encapsulating element, able to substantially evenly disperse the emitted far infrared heat therefrom.

The performance of a thermal insulation for a building surface 6, subject to a thermal gradient emitting from the building interior, is enhanced by a neutral thermal gradient. For this purpose an electrical heating element 1 is adapted to release very low Wattages of thermal energy and is contained within an inner layer 4 and an outer layer 5 of thermal insulation. Adjusting the thermal efficiency of the insulation layers controls the magnitude of the thermal energy required to maintain the temperature of the element 1 at the equivalent temperature level to the building interior. The element 1 may be provided with a moisture controller and discharge sizeable quantities of thermal energy to dry moisture from the thermal insulation materials of the assembly.

A spotlight having a variable angle of radiation includes a light source and a converging lens. The converging lens is the front lens of the spotlight. The front lens is eccentrically arranged such that the principal optical axis of the front lens is not coincident with the principal optical axis of the spotlight. For example, the principal optical axis of the front lens is parallel to and spaced from the principal optical axis of the spotlight by a predetermined distance.

Light sources in a luminaire attach to the luminaire by one or more tabs. Up to three axis of rotation are possible. Bendable tabs enable a first axis of rotation of the light source. Light sources are rotatable about a mounting point to the tab providing a second axis of rotation. Some tabs are twistable about a third axis of rotation. Some tabs also conduct heat away from the light source. Tabs can also be formed in a baffle plate for new luminaires or for the retrofit of existing luminaires. Multiple types of light sources can be combined to provide luminaires with custom light patterns and intensities.

A light source device for a projector device having a discharge lamp with a silica glass discharge vessel containing a pair of opposed electrodes and at least 0.15 mg / mm3 of mercury, a concave reflector which surrounds the discharge lamp and reflects light emitted from the discharge lamp in a given direction, and a power supply device which selectively supplies a first wattage and a lower second wattage, is provided with a reflection heating arrangement which, in operation of the discharge lamp with the lower second wattage, returns at least part of the light emitted by the discharge lamp in the direction of the discharge lamp, and in operation of the discharge lamp at the first, higher wattage returns less light than in operation with the second wattage in the direction of the discharge lamp.

A smart motor driving air cylinder device is characterized in that the smart motor driving air cylinder device comprises an outer pipe, a direct current motor, a reducer, a cylinder sleeve, a piston rod, a screw sleeve, a multi-head screw rod and a positioning sleeve. The cylinder sleeve can move back and forth relative to the outer pipe and comprises a small cylinder sleeve and a big cylinder sleeve, the small cylinder sleeve is located in the middle of the big cylinder sleeve, and an annular area is formed between the outer wall of the small cylinder sleeve and the inner wall of the big cylinder sleeve; the piston rod is hollow to form an inner cavity and a piston is formed at the front end of the piston rod, the small cylinder sleeve is sleeved with the piston rod, and the piston is located in the annular area between the outer wall of the small cylinder sleeve and the inner wall of the big cylinder sleeve; and one end of the multi-head screw rod is connected with the output end of the reducer, and the other end of the multi-head screw rod extends into the small cylinder sleeve and is connected and matched with the screw sleeve. Compared with the prior art, the smart motor driving air cylinder device has the advantages that the structure is compact, portability is achieved and the noise is low.

An assembly of LED luminaires is distributed at a sports venue, includes key, back, and fill light sources in such a way as to provide modeling within a significant portion of the playing area of the sports venue, uses beam types narrower than previously used, and achieves efficiencies higher than previously attained, while also reducing glare and spill light.

A low wattage mercury vapor lamp comprises a discharge vessel (10) including a tubular body (12), first and second electrodes (20, 22) and two end walls (16, 18), which close opposite ends of the tubular body. The discharge vessel contains an ionizable fill material having a concentration of mercury of from 0.10 to 0.20 mg / mm3. The discharge vessel operates at elevated pressures of from 80 to 170 atmospheres at power of 20 watts resulting in improved lumen maintenance and reduced through-life color shift.

A power interface is proposed, which keeps an adjustable power supply circuit in a conducting state even if the average current consumption of an attached load is below the adjustable power supply circuit's holding current requirement. The power interface makes use of the dynamic properties of adjustable power supply circuits. Due to the recovery time of the adjustable power supply circuit, it will stay in the conducting state even if there is no current flowing for a short while. The power interface makes use of this effect by interrupting and re-establishing a current flow from the adjustable power supply circuit.