A soil conditioning device having a series of peripheral ridge members having a leading and trailing prow shaped surface circumscribing a disc, wheel or drum and a method of use. Optionally the prow shaped peripheral ridge members are joined by sub-ridge members forming a single ridge of varying heights circumscribing the disc, wheel or drum.

A cleaning composition and method for the removal of contaminants, such as, oil and grease from a surface, particularly concrete and asphalt. The composition includes an absorptive material, charcoal, and a pH modifying agent which is applied and removed in a dry form. Optionally, surfactant, solvent, carbonate or microorganisms may be added.

Implementations of the present invention include systems, methods, and apparatus for improving the fuel efficiency (mpg/kpl) of a motor vehicle during those times when the vehicle air conditioning system is operating. Whenever the driver takes his foot off the gas, or the vehicle engine is otherwise caused to decelerate, the refrigerant compressor clutch engages, allowing the compressor to operate on previously-imparted vehicle waste energy (e.g., imparted by the engine, or by downhill travel.) ...

The air-conditioning unit includes an air-conditioning case, a heater, a bypass path bypassing the heater, an air-mixing chamber, an air-mixing door, and an air opening. The air-conditioning unit also includes an auxiliary door arranged in series with the air-mixing door in the bypass path. The auxiliary door is operated between at a first position and at a second position. The auxiliary door in the first position closes the bypass path more than in the second position. The auxiliary door is ope...

An air conditioning system for airplanes for conditioning moisture containing air, which is under excess pressure, for air conditioning an airplane cabin. The air conditioning system has at least one compressor, a first and a second air expansion turbine, and a water separator, which is disposed between the first and second air expansion turbine. To control the degree of moisture, the system adjusts selectively the degree of air expansion in the first air expansion turbine.

For heat conditioning flat panel glass substrates the substrates are directly exposed in vacuum to the radiation of lamps, the lamps being selected so that their spectral radiation characteristics (b, c) fit with the absorption characteristics (a) of the glass of the substrate.

This invention relates to signal conditioning circuitry 14a for an optical pointing device, the circuitry comprising: means 15a for determining the rate of change of a signal generated on periodic illumination of a photodetector, and outputting a signal representative of said determined rate of change; and means 17a for comparing the signal output by said determining means to a reference voltage.

An air-conditioning system includes a refrigeration cycle and a control unit. The refrigeration cycle includes an electric compressor in which a compression mechanism for drawing a refrigerant therein for compression is integrated with an electric motor for driving the compression mechanism, and a motor drive circuit for driving the motor is cooled using an intake refrigerant drawn into the compression mechanism. The control unit provides operational control to the motor drive circuit and the re...

According to an example embodiment, a method (500) includes applying a magnetic field to an array of Magnetic Tunnel Junction (MTJ) bits, a magnitude of the magnetic field sufficient to eliminate a stuck-at-mid condition exhibited by one of the MTJ bits without causing other ones of the MTJ bits to develop the stuck-at-mid condition.

An air conditioning system for conditioning the space within an enclosure having at least one inlet and one outlet, the system comprising first and second liquid/air heat exchangers; the first heat exchanger having an opening for receiving fresh air from the environment and for propelling the fresh air through the first heat exchanger to exchange heat with the liquid before it is entered into the enclosure, and the second heat exchanger having an opening for receiving air from the enclosure and ...