The system for suppressing an ambient noise signal which comtaminates a desired signal includes a noise pickup detector for detecting the ambient noise signal. A noise discriminator processes the detected noise signal into noise data. A reference noise generator converts the noise data into a reference noise signal. The noise generator automatically adjusts the reference noise signal to correspond with changes in the noise signal as it is being detected. A filter filters the reference noise sign...

Reduction of loss of water from meat during quick refrigeration. The meat follows a path passing through a series of mist cabins (1) in which they are subjected to successive gusts of sterilized water mist whose particle size is between thirty and one hundred micrometers. This treatment improves the surface appearance of the meat by limiting surface dehydration.

An FCC regenerator comprising a first dense bed coke combuster, a dilute phase transport riser, and a second dense bed operates with selective addition of CO combustion catalyst downstream of the coke combustor and preferably into the dilute phase transport riser. The process and apparatus permits maintenance of a reducing atmosphere in the first dense bed, which promotes conversion of NO.sub.x compounds to nitrogen within the FCC regenerator. Coke can be burned in the first dense bed, the trans...

The present invention is directed to a mattress for pregnant women which has a main mattress section with an opening therein for serial cushions for abdominal support. A plurality of cushions are serially arranged within one another and are located within the opening of the main mattress section. At least one of the cushions is non-inflatable to enhance structural support. The cushions may all be non-inflatable, e.g. foam, but at least one must be non-inflatable for structural support. In a pref...

The apparatus comprises a carriage supported on a track assembly by rollers. Energy absorption and release apparatus biases the carriage toward an at-rest position approximately midway between the ends of the track assembly. The user lies back-down on the carriage and, using handles and a foot rest provided for the purpose, sets the carriage into reciprocating motion. The effort used in causing the motion and the acceleration forces experienced as a result of it provide effects beneficial to the...

An irrigation system for arthroscopy of a joint includes a high pressure bleed valve assembly and a monitor check valve assembly to control fluid communication to the joint via suitable tubing for the purposes of directing fluid inflow, joint fluid pressure monitoring, and to assist with connection of the tubing for an arthroscope and cannula inserted into the joint. The high pressure bleed valve assembly is pressure responsive to direct fluid to the joint via alternative paths.

A composition of an aroma-producing material enrobed in a fusible encapsulating agent preferably a lipid and in conductive heat transfer relationship with a microwave susceptible material, when combined with a microwaveable comestible or package will provide an aroma when the comestible or package is prepared by subjecting said comestible or package and said composition to microwawve energy.

A warming apparatus for use during sleep includes at least one of a temperature-up timer circuit for raising a temperature of an electric heater by an amount in the range of 2.degree. C. to 6.degree. C. for a predetermined time and thereafter restoring the temperature of the electric heater to a preset ordinary temperature, and a temperature-dowm timer circuit for lowering the temperature of the electric heater by an amount in the range of 2.degree. C. to 6.degree. C. for a predetermined time an...

In extracorporal lithotripsy a shock wave that is focussed on a concrement is followed by a pain producing pressure wave. This wave is filtered by means of a membrane bulging inwardly into the focussing chamber, closing the same and having a thickness smaller than the predominant wave length of the shock wave.

The invention discloses processes for preparing matched sizes of electric furnace feed materials. With the matched sizes, components of the feed mixture do not separate inside the furnace and this decreases the electric energy for smelting. Preparation of matched sizes of materials is made possible by low-temperature agglomeration followed by drying to indurate the agglomerates. Fuel requirements for induration are substantially reduced, and environmental problems associated with high-temperatur...