Abstract: An aspiration sprayer comprises a head which is permanently attached to the container in which the additive material is received and which is movable between a first position in which the interior of the container is sealed and a second position in which the interior of the container is unsealed and aspiration occurs, the making of seals and appropriate fluid connecitions being accomplished by a plurality of sealed cups moved by the head. Safety means are provided to tend to retain the head in its container-sealing position. An aspiration opening is accessed by means of a nozzle which is snap-engaged with the head, and the carrier fluid after it leaves the nozzle is guided by means of flanges on the head so located and oriented as to produce a long-distance jet output. A cover protects the parts from accumulation of foreign matter.

Abstract: The input digital signal is applied to a transition detector which causes an up/down counter to increment or decrement each time a transition is detected. The output of the counter is utilized to address a read only memory (ROM) which, in turn, generates binary words representing first and second integers. These binary words are used to control a programmable divider to generate an output having a frequency which moves between two values corresponding to the digital input. The rate at which the frequency changes between the two values is controlled by the ROM contents. In the implementation, the frequency changes with a raised cosine shape.

Abstract: An easily assembled and disassembled modular construction for an air conveyor comprises standardized side, bottom and top walls adapted to be assembled together, at the point of use if so desired, to produce a conveyor section, with individual sections being joined together to produce conveyors of desired length and configuration. The top wall constitutes the wall over which the conveyed objects move, the bottom and top walls can be provided in varying widths, and the standardized side walls are configured to receive and hold the top and bottom walls, to have brackets mounted thereon, which brackets can carry auxiliary elements such as side guide rails or top covers for the conveying space, and to receive splice plates and other elements, all preferably through the use of headed fasteners the heads of which are received in key slots provided on the outer surfaces of the side walls.

Abstract: The same basic ROM circuit may be used to provide memories of increased capacity for pre-existing systems having different fixed numbers of address inputs. The appropriate page configuration is selected to accommodate the number of address inputs in the system. The system is adapted to generate a page address signal having the required number of bits on the data bus. The selected page configuration is obtained by mask programming the address decoder and input buffer circuits. The page address signal from the data bus is routed through the data transfer buffers and stored in a RAM for use in conjunction with the row and column address inputs.

Abstract: A glove or mitten includes a relatively thick insulating inner layer and an outer cover layer. The outer layer has an extra trigger finger receiving stall situated in front of the conventional trigger finger receiving stall. The single trigger finger receiving stall of the inner layer is received within the conventional trigger finger receiving stall of the outer layer. An opening, proximate the trigger finger receiving stall of the inner layer, permits the trigger finger of the wearer to extend through the inner layer and into the extra trigger finger receiving stall of the outer layer. Because the extra trigger finger receiving stall of the outer layer has no thick insulating inner layer therein, the trigger finger, when situated therein, can manipulate the trigger. Thus, the hand covering need not be removed to use the firearm. A waterproof, vapor permeable thin membrane intermediate layer may be provided.

Abstract: An active element behaving as a negative resistor is situated in parallel with a varactor to cancel the varactor losses. DC bias is provided for the active element and for the varactor which are separated by a DC block. The entire circuit can be fabricated on a single, relatively small chip. A Gunn diode may be used as the active element if the circuit is formed on a silicon substrate. A field effect transistor may be used as the active element on a gallium arsenide substrate.

Abstract: Blank tickets, for use in an instant lottery game or the like, can be imprinted in a secure manner in an enclosed point of sale ticket-issuing apparatus under the control of a central computer. Prior to exposure of the ticket, an adhesive-backed sheet with a scratch-off material coating on areas aligned with the printing is applied to the surface of the ticket. The adhesive will cause obvious damage to the ticket to void same if an attempt is made to remove the label.

Abstract: An aspiration sprayer comprises a disc valve for controlling the degree of aspiration over a very wide range by means of a plurality of passages of different sizes formed in the disc valve and selectively introduced into the flow path of the liquid to be aspirated, the disc valve rotating with a knob and being spring-urged into leakproof relationship with that flow path, the carrier liquid with aspiration material entrained therein emerging from the sprayer in a strong jet-like stream the nature and direction of which can be modified by a deflector mounted on the device so as to be slidable between operative positions. The knob and the disc valve may be readily assembled and disassembled and the operative passages of the valve are accessible for cleaning without requiring disassembly of the device. The passages in the disc valve may comprise a plurality of radially enlarged vortex areas interconnected by spaces of lesser width.

Abstract: A microprocessor-controlled metronome in which the type (strong or weak), pattern (order and number of strong and weak) and frequency of beats are determined by data stored in a memory manually programmable by means of a keyboard or the like and capable of storing information to produce metronome beats of different types, patterns and relative frequencies combined in various sequences to produce metronome passages consisting of one or more of those sequences, the memory being capable of storing a plurality of such passages and to produce beats corresponding thereto on command.

Abstract: A urine collection receptacle has a body formed by walls sealed along the periphery. First and second sheets form a drape which is situated between the walls. The drape extends across the body below the inlet, with the side edges of the drape sealed along opposing sections of the periphery. The sheets are sealed to each other along spaced vertical lines to define the body of a flap valve. The vertical sealed lines are severed to detach the flap valve body from the remainder of the drape. The sheets may also be sealed along oppositely oriented, downwardly inclined lines to form a funnel to direct liquid from the inlet toward the flap valve. The structure facilitates manufacture because the drape is sealed to the receptacle body in the same automated operation which seals the periphery of the walls.

Abstract: An oscillating sprinkler is specially designed to facilitate assembly, as well as disassembly for purposes of repair of replacement of parts, without sacrifice of water-tight integrity and with improved operating characteristics. The housing for the impulse wheel and for supporting one end of the sprinkler tube is formed of two parts snapped together to effect the necessary seal, the sprinkler tube is mounted therein by a snap action insertion, thereby to define an operating subassembly, and that subassembly is reliably assembled with a mounting subassembly by sliding insertion and snap action retention. The sprinkler tube is sealingly journaled in such a manner as to produce very low friction, thus reducing the load on the impeller wheel and enabling the sprinkler to have a very low pressure drop therethrough, thereby increasing the sprinkling range of the device.

Abstract: A compliant conductive pin for insertion in and making electrical connection with an internally conductively lined aperture is formed from a screw machine component by conventional machine tool operations; an axial bore is formed in the portion of the terminal to be received in the hole and material is removed from the sides of that portion sufficient to expose the internal aperture, thereby producing a fixed compliant beam in that portion.

Abstract: The print head includes a stationary block of non-conductive material having a plurality of openings into which spark jet capsules are received and a plurality of openings into which electrodes with off-set parts are received. Each electrode is located proximate the end of a different one of the capsules with the off-set part thereof situated in a channel on the block surface extending therebetween. The capsules are arranged in rows transverse to the direction of paper movement. The capsules in each of the rows are slightly off-set with respect to the corresponding capsules in the preceding row. The paper is moved continuously past the block. Actuation of the individual capsules is synchronized with the movement of the paper.