Abstract: An air filtering system used to increase the filter capture efficiency of particulate matter carried in the air. Particulate matter carried in the air, such as in a furnace forced air system, receives a charge by contacting the duct's surface. As these charged particles move through conventional air filter material most are captured and retained in the material. To increase this capture rate of particulate matter, spaced magnetic strips are placed in the filter material in a generally parallel configuration. The polarity of the magnetic strips can be alternated to insure particles having positive of negative charges are slowed down, diverted, or both, as they flow through the filter material. The result of this action is an increase in the capture efficiency of the filter material. It is believed that the capture efficiency can be increased from about 87 percent with no magnetic strips to about 96 percent when strips are used.

Abstract: An air filtering system used to increase the filter capture efficiency of particulate matter carried in the air. Particulate matter carried in the air, such as in a furnace forced air system, receives a charge by contacting the duct's surface. As this charged particles move through conventional air filter material most are capture and retained in the material. To increase this capture rate of particulate matter, spaced magnetic strips are placed in the filter material in a generally parallel configuration. The polarity of the magnetic strips can be alternated to insure particles having positive of negative charges are slowed down, diverted, or both, as they flow through the filter material. The result of this action is an increase in the capture efficiency of the filter material. It is believed that the capture efficiency can be increased from about 87 percent with no magnetic strips to about 96 percent when strips are used.

Abstract: A method and apparatus for controlling use of an electronic system is described. Use of the electronic system is controlled by programming at least one unique code into an auxiliary memory of the electronic system. The auxiliary memory is a permanently lockable memory that is located outside of a main memory array space. The unique code is compared to at least one component code. Use of the electronic system is controlled based on a predefined relationship between the unique code and the component code.

Abstract: A method and apparatus for preempting an operation in a nonvolatile writeable memory is performed using a pin. Preempting an operation is accomplished by either suspending the operation or by aborting the operation. Once an operation is suspended in the nonvolatile writeable memory, other operations can then be performed. Subsequently the suspended operation may be resumed.

Abstract: An interface for a read-while-write memory. A memory device includes a single-chip memory array and an interface that is responsive to one or more commands to configure the memory array in a read-while-write configuration.

Abstract: A method and apparatus suspend a program operation in a nonvolatile writeable memory. The nonvolatile writeable memory includes a memory array, a command register and memory array control circuitry. The command register decodes a program suspend command and provides a suspend signal as an output. The memory array control circuitry is coupled to receive the suspend signal from the command register. The memory array control circuitry performs a program operation in which data is written to the memory array. The memory array control circuitry suspends the program operation upon receiving the suspend signal.

Abstract: A method and apparatus for partitioning a flash memory device is provided. The flash memory device includes a plurality of partitions, each partition able to be read, written, or erased simultaneously with the other partitions.

Abstract: A method and apparatus suspend operations in a flash memory in order to read code from the flash memory. A system comprises a processor and a nonvolatile writeable memory coupled together. A non-read operation is preempted in the nonvolatile writeable memory responsive to an input at a pin of the nonvolatile writeable memory. The preemption occurs by either suspending the non-read operation or aborting the non-read operation. Code is read from the nonvolatile writeable memory and provided to the processor. Subsequently, the non-read operation is resumed at where it was suspended, or is started anew.

Abstract: A method and apparatus suspend a program operation in a nonvolatile writeable memory. The nonvolatile writeable memory includes a memory array, a command register, and memory array control circuitry. The command register decodes a program suspend command and provides a suspend signal as an output. The memory array control circuitry is coupled to receive the suspend signal from the command register. The memory array control circuitry performs a program operation in which data is written to the memory array. The memory array control circuitry suspends the program operation upon receiving the suspend signal.

Abstract: A centrifugal pump utilizing laminar action induced by a vaneless impeller and having a minimal drag front plate which cooperates with the circular rotor. The smooth surface of the concave face of the circular rotor has no protrusions or vanes and approximates an Archimedian curve. Material entering the intake port of the front plate is diverted about the rotating circular rotor and redirected in an outwardly direction along the minimal drag interior surface of the front plate to the discharge port of the output housing. The narrowing of the interior surface of the front plate in a radially outward direction with respect to the concave face of the impeller helps the pump to maintain a constant volumetric flow rate.

Abstract: Method for hard-facing substrates is disclosed using a hard facing material consisting essentially of at least one vanadium carbide. In a particular embodiment of the invention tungsten is present in the hard facing material in solid solution with vanadium carbide.

Abstract: A children's potty seat is shown for use in the toilet training of infants. This potty seat is designed to be mounted to the toilet seat of a toilet bowl. An important feature of this invention is that the mounting means for the potty seat is located toward the rear of the seat so that when the seat is inverted and positioned on the floor in front of the toilet bowl, the mounting means do not constitute an obstruction which would make it difficult for a child to stand on the inverted potty seat in the manner of a step stool. The rear portion of the potty seat is specially designed so that when the seat is used as a step stool, the stool may be positioned closely adjacent the front of the toilet bowl so that a small boy may reach the toilet bowl. In other words, the inverted potty seat has a telescoping relationship with the base of the toilet bowl.

Abstract: A method of and means for demonstrating organic evolution, particularly as it involves the mechanism of natural selection. Background panels of multicolor and intricate design or pattern are used to provide simulated natural environments, and thin chips of different colors and shades -- and, in some instances, of different sizes and shapes -- are used to provide simulated animals or plants to be placed on the background panels. A population of a predetermined number of chips of a predetermined mixture of colors -- say, for instance, an equal number of from ten to twenty different colors -- is selected. The chips constituting the selected population are then spread in a single layer more or less uniformly on the surface of the background panel, and preferably in spaced relation, so that each chip is in plain view and is more or less detectible -- depending upon the color contrast existing between each chip, respectively, and the associated area of the background panel.

Abstract: The manufacture of animal feed using as a principal ingredient food waste, wherein the food waste is first ground to a fine particle size, cooked and dried, and then blended with certain additives to provide a complete animal feed.