Abstract: A sprinkler valve suitable for flows from about one (1) to two (2) gallons per hour to thirty (30) to forty (40) gallons per minute. A double diaphragm utilizes a principle of differential areas to create force for any non-zero pressure through the valve. This feature, in conjunction with momentary fluid flow in the solenoid circuit, is responsible for complete regulation of the flow characteristics of the valve. The requirement for large shut-off springs and flow control adjustment screws has been eliminated. The flow may be determined by the size of the valve. The need for solenoid springs has been eliminated. In one embodiment two (2) separate diaphragms utilize a principle of differential areas to create force for any non-zero pressure through the valve. This feature, in conjunction with momentary fluid flow in the solenoid circuit, is responsible for complete control of the flow characteristics of the valve.

Abstract: A sprinkler valve suitable for flows from about one (1) to two (2) gallons per hour to thirty (30) to forty (40) gallons per minute. A double diaphragm utilizes a principle of differential areas to create force for any non-zero pressure through the valve. This feature, in conjunction with momentary fluid flow in the solenoid circuit, is responsible for complete regulation of the flow characteristics of the valve. The requirement for large shut-off springs and flow control adjustment screws has been eliminated.

Abstract: A telescoping stand combining mechanical memory with integrated internal electrical wiring with plug-in connectors. The stand is equally suitable for mounting various electro-mechanical devices including, but not limited to, musical drums (electric or acoustic), lighting fixtures, displays, consoles, keyboards, and other items or devices where repetitious precise mechanical positioning with integral internal electrical connections is required. Once initially set up, the stand can be locked for height and rotation (vertical and horizontal, or radial, angular, and polar) and is then ready for disassembly and subsequent re-assembly and connection to external electrical circuits after which re-assembly the precise mechanical positioning of the mounted devices will be restored.

Abstract: A percussion instrument comprising a base (10) supporting a plurality of percussion heads (11, 12, 13 and 14) on standards (25). The standards are each adjustable lengthwise and fixed to the base by mounts (26) and to the percussion heads by mounts (54) such that the positions of the heads can be set once and thereafter will be automatically determined by the preset mounts and standards.

Abstract: A hand controller for use in controlling the motion of a cursor on a video display comprises a spherical surface on which is mounted a flat plate. On the bottom of the flat plate is a unique electrical switch capable of indicating the direction in which the flat plate is rocked over the spherical surface. Attached to the bottom of the flat plate adjacent the spherical surface is a spring consisting of a substantially flat center portion and four spiralling arms extending from the periphery of said center portion to attach to the structure on which the spherical surface is mounted. When the flat plate is rocked over said spherical surface, the spring generates a restoring force which, upon removal of the rocking force, restores the flat plate to its nominal position. The spring makes possible rocking motion of the flat plate over the spherical surface without pinning the flat plate to a point on the spherical surface.

Abstract: A hand controller for use in controlling the motion of a cursor on a video display comprises a spherical surface on which is mounted a flat plate. On the bottom of the flat plate is a unique electrical switch capable of indicating the direction in which the flat plate is rocked over the spherical surface. Attached to the bottom of the flat plate adjacent the spherical surface is a spring consisting of a substantially flat center position and four spiralling arms extending from the periphery of said center portion to attach to the structure on which the spherical surface is mounted. When the flat plate is rocked over said spherical surface, the spring generates a restoring force which, upon removal of the rocking force, restores the flat plate to its nominal position. The spring makes possible rocking motion of the flat plate over the spherical surface without pinning the flat plate to a point on the spherical surface.

Abstract: High-density multilayered integrated circuits are fabricated by first generating all photomasks for the respective layers concurrently during the same exposure operation. Since ambient conditions are identical during generation of these related masks, mask-to-mask misregistration is virtually eliminated. While photosensitive substrates are supported on a rotating turntable, a laser beam is incremented radially toward the turntable axis and modulated to expose selected portions of each of a series of contiguous concentric bands on each substrate sequentially. Thus, in generating a four-layered circuit, the four different photomasks for the respective layers would be generated by selective exposure of each mask in sequence within the same concentric band; then, after the beam is incremented radially, each mask would again be selectively exposed in sequence within a contiguous concentric band, etc.