Abstract: A system for variable speed control of a plurality of compressors under variable load demand. The system includes a constant power source and a plurality of compressor motors having switches to connect with the constant power source. The system further includes a variable speed drive for driving any one of the plurality of compressor motors at variable speed, wherein each of the plurality of compressor motors includes a switch to connect with the variable speed drive. Each of the plurality of compressor motors is selectively electrically connected with the variable speed drive or the constant power source via the switches, for driving the each of the plurality of motors at one of variable or constant speed in response to compressor load demands.

Abstract: A method of controlling supply air temperature in an enclosure refrigerated with a refrigeration cycle including an evaporator exhibiting a temperature differential, is disclosed. The method includes the steps of defining a supply temperature limit constant and a setpoint; sensing supply air temperature; sensing return air temperature; comparing supply air temperature to the supply temperature limit constant; increasing supply air temperature if supply air temperature drops below the constant and at least one of additional determinable factors is sensed, thereby reducing cooling capacity; and increasing cooling capacity without substantially effecting the temperature differential at the evaporator.

Abstract: A refrigeration system for cooling air s disclosed. The system includes a substantially liquid refrigerant and an evaporator for transferring heat from the air to the substantially liquid refrigerant. The substantially liquid refrigerant becomes a low temperature, low pressure first superheated gas refrigerant. A compressor compresses the first superheated gas refrigerant into a high pressure, high temperature second further superheated gas refrigerant. A lubricant circuit supplies lubricant to the compressor, wherein a portion of the lubricant is mixed with the further superheated gas refrigerant. A condenser rejects heat from the second superheated gas refrigerant and forms a high pressure, low temperature sub-cooled liquid refrigerant. The condenser has an output stream. A metering device transforms the sub-cooled liquid refrigerant into the substantially liquid refrigerant for the evaporator.

Abstract: A connector for joining the ends of pliable tubing which form a hula hoop. The connector is comprised of an elongated body with a plurality of conically tapered discs attached thereto and a circularly shaped center disc located at its lengthwise centerline. The connector is subtlety formed in the shape of the hula hoop arc. The tapered discs ar located in equal number on each side of the center disc. The large diameter of the tapered discs increases as the discs are positioned closer to the center disc. The large diameters of the discs are greater in size than the inside diameter of the tubing such that the tubing end must be force fit over the discs thus causing a secure connection. Upon attempted removal of the tubing, the large diameters of the tapered discs act as barbs which prevent accidental removal.

Abstract: A combined hamper and laundry bag which provides a convenient arrangement for separating and maintaining separation of small laundry items from large items prior to washing and throughout the washing and drying cycle. The bag comprises a mesh bag portion having one open end, a latching strip for hanging the bag, and an adhesive backed mounting strip for engaging the latching strip. The openings comprising the mesh bag are of adequate size to allow sufficient water flow. The latching strip is permanently attached to the open end of the bag and is comprised of two strips of reinforced and durable material sewn together at their ends with an opening therebetween. At the ends of the latching strips, keyholes are formed to provide for engagement with the mounting strip. The mounting strip has adhesive on one side for attachment to the inside surface of the clothes hamper. On its other side, the strip has two knobs extending therefrom for engagement with the keyholes.

Abstract: An exercise apparatus for providing improved muscle conditioning via push-ups or similar exercises. The apparatus comprises an elongated body with end supports and two rotatably affixed hand grips. The elongated body has a plurality of pairs of bushing lined holes. Each hole of each pair is equally spaced from the elongated body's vertical centerline. The hand grips are rectangularly shaped having a pin extension that slidably and rotatably fits in the body's bushing lined holes. The top horizontal portion of the rectangle is an ergonomically shaped handle. The pin and, consequently, the hand grip are locked into place in the body via a spring clip which engages the pin at its free end. The spring clip engages the underside of the body such that the hand grips cannot be withdrawn from the body until the clip is removed. While being used, the user grabs the ergonomically contoured handles and performs a push-up or similar exercise.