Abstract: A de-watering pump is designed for eliminating liquids in small diameter holes. An expandable air sack is designed such that the outer walls of the air sack can expand to interface with the inner walls of the hole which is to be de-watered. Pressurized air is forced into the hole. The pressurized sack prevents the escape of air up through the hole and directs the pressurized air and water from the hole out through the escape line.

Abstract: An apparatus for intermittently and accurately discharging a measured portion of the contents of a container by a peristaltic pumping action and such apparatus includes an elongated elastomeric tubular body having a connection at one end for attachment to the container and a discharge tip section at the other end on which a dispensing valve and cap are mounted.

Abstract: A valve including indicating means for indicating overtravel of an operating member beyond its normally closed position for warning that replacement of a seal is necessary. A diaphragm valve has a diaphragm of a material which withstands repeated flexing and is clamped in a unique manner.

Abstract: The disclosure concerns a reinforced plastic bottle or vessel with a relatively large neck with buttressed threads and bevelled rim on its neck onto which threads is screwed a cap assembly. This cap assembly comprises a plastic cap base member having a pair of parallel ribs forming a channel between an integral handle and a nozzle connection, a plastic manual air pump, a plastic siphon, a valve and spray nozzle assembly, and a lever disposed in said channel to operate the valve. The air pump is supported by an integral flange and depends vertically from the cap base member into the bottle with a disc-type checkvalve at its bottom. This air pump is attached to the cap base by a piston-guiding cap having a pair of diametrically opposite resilient hooks that snap into slots in parallel walls of said channel in the cap base member on each side of the piston-guiding cap.

Abstract: The covert communication system comprises a first arrangement to translate binary "1" bits into different portions of a predetermined PN (pseudonoise) code sequence and primary "0" bits into a complement of the different portion of the PN sequences, the PN sequence being selected to spread the binary signal over as large a bandwidth as possible. A second arrangement is coupled to the first arrangement to transmit the portions of the PN sequence and the complements of the portions of the PN sequence at a variable transmission rate and at a power level below environmental noise of propagation medium. A third arrangement is coupled to the second arrangement through the propagation medium to receive the portions of the PN sequence and the complements of the portions of the PN sequence imbedded the environmental noise with a fourth arrangement coupled to the third arrangement to recover the binary signal from the received portions of the PN sequence and the received complements of the portions of the PN sequence.

Abstract: The invention is a procedure and apparatus for coating the individual particles of solid bulk materials, which may be particulate products or multiple small objects, by chemical vapor deposition. The particles or small articles are vigorously agitated and moved along the length of a vibrating, bottom heated, enclosed trough with lesser heated side walls, while the uppermost layer of the moving materials is exposed to the vapor of a volatile heat-decomposable or heat-reactable coating compound.

Abstract: It has been determined that the mechanical and thermal properties of polyesters can be improved by incorporating bis-hydroxyalkyl pyromellitic diimides therein. Such polyesters are comprised of repeat units which are derived from (a) at least one diacid component and (b) a diol component which is comprised of (1) from 2 to 90 mole percent of at least one bis-hydroxyalkyl pyromellitic diimide and (2) from 10 to 98 mole percent of one or more members selected from the group consisting of glycols containing from 2 to 12 carbon atoms and glycol ethers containing from 4 to 12 carbon atoms.

Abstract: An electronic/electromechanical transmission shifter has a velocity detector which generates an electrical signal representing the vehicle velocity. A microcomputer is connected to the velocity detector, to a plurality of manually controlled switches and to a digitally controlled linear actuator which is linked to the shift member of the vehicle. The shifter position is detected by a cam mounted on the screw shaft of the linear alternator operating against a plurality of microswitches which are mounted about and axially spaced along the screw shaft. The cam follower portions of the microswitches are engagable with the cam to indicate shifter position.

Abstract: A method for producing carbonaceous-derived solid fuel products comprising subjecting a carbonaceous material to a temperature sufficient to remove a substantial portion of water inherent in said carbonaceous material, pyrolyzing at least a portion of the dried carbonaceous material to form a carbonaceous-based char material and simultaneously recover carbonaceous-based tar by-products and contacting at least one material selected from the group consisting of the dried carbonaceous material and the carbonaceous-based char material with a water-in-tar emulsion, said emulsion being prepared from said recovered carbonaceous-based tar by-products.

Abstract: A compression tool comprises a tool head and a pair of dies mounted in the tool head for compressingly, surroundingly engaging a generally tubular workpiece. The dies define a minimum opening and a maximum opening therebetween for accommodating workpieces over a corresponding range of sizes. A fluid operated drive urges the dies inwardly to compress the workpiece and a fluid pressure control is provided for controllably varying the maximum pressure of the fluid supplied to the fluid operated drive in accordance with the size of a workpiece to be compressed.

Abstract: A construction of a gas turbine combustion chamber which facilitates relighting the fuel immediately after flame-out. The construction comprises a catalytic coating on the combustor wall, preferably with areas left uncoated to allow the flame to propagate away from the combustor wall and into the bulk gas flow.

Abstract: A stress-free embossed, ornamented surface covering, suitable for use as a floor or wall tile, is made by: providing a decorated resinous film on a release carrier, with the decorated surface of the film facing away from the carrier; providing on a release carrier a pre-formed, low-density, reinforced, porous thermoplastic base material, which may include hollow, non-thermoplastic particles; interfacing the decorated surface of the film with the top surface of the base material; perforating the film, after removal of the release carriers; and, subjecting the structure to high frequency electrical energy and pressure in a flatbed press having a cooled embossing plate and a cooled back-up plate, to emboss the structure, fuse the resins and render the film substantially impermeable.

Abstract: Compositions and processes for forming inorganic resins, including articles of manufacture incorporating these resins are disclosed. the inorganic resins are characterized by their strength, nonflammability, dimensional stability, resistance to organic and inorganic chemicals, to heat and to abrasion and their adaptability to being formed into noncellular or cellular forms. The resins are formed by reacting a liquid component A containing an aluminum phosphate or a magnesium phosphate and a liquid component B containing a source of magnesium oxide, such as magnesia, and/or wollastonite and an essentially non-reactive phosphate dispersing agent. Various fillers may be incorporated and a blowing agent may be added to form a cellular resin.

Abstract: A gasket assembly suitable for sealing between two pipe members in a high pressure pipeline includes an annular gasket body made of a resilent material. The body terminates radially inwardly in a leading lip and a pressure actuated sealing lip. The leading lip has a pipe centering and cleaning face and a compression sealing face. An enclosed annular groove is provided in the gasket body with an annular retaining ring being provided in the groove. The ring is made of a material harder than the gasket body and functions to retain the gasket body in the pipe groove.

Abstract: A dual function gasket adapted for insertion into a suitable groove formed in the bell of an associated pipe includes an annular gasket body made of a resilient material. The body terminates radially inwardly in a leading lip and a pressure activated sealing lip spaced rearwardly therefrom. An annular groove is provided in the gasket body and an annular locking ring may be selectively inserted into the groove. The ring is made of a material harder than the gasket body and is inserted into the groove when a high pressure seal is desired. The ring may be removed when only a low pressure seal is desired.

Abstract: An inverter (100) receives a DC voltage and generates therefrom a square wave output signal. The inverter includes an output transformer (T3) and a saturable core transformer (T4). The saturable core transformer (T4) provides base current for a first transistor (Q3) and a second transistor (Q4). The first transistor (Q3) and the second transistor (Q4) alternatively turn on and off, causing a square wave to appear across the secondary winding of the output transformer (T3). The primary winding of the output transformer is coupled to the collectors of the first and second transistors via a pair of windings (L10, L11) magnetically coupled to the saturable transformer (T4). A pair of diodes (D4, D5) are provided to prevent the output leads of primary windings of the output transformer (T3) from dropping below ground potential.

Abstract: A rotatable rectifier assembly for use in a brushless generator. A housing 40 receives a stack of heat sinks 56-68 which are both thermally and electrically conductive and which sandwich diode wafers 78 making up a multiple phase, full wave rectifier. The requisite electrical connections are made by electrical connectors 102,110 slidably extending through the heat sinks and electrically connected to desired ones of the heat sinks and electrically isolated from other ones of the heat sinks.

Abstract: Apparatus and method for maintaining steady state compact toroidal plasmas. A compact toroidal plasma is formed by a magnetized coaxial plasma gun and held in close proximity to the gun electrodes by applied magnetic fields or magnetic fields produced by image currents in conducting walls. Voltage supply means maintains a constant potential across the electrodes producing an increasing magnetic helicity which drives the plasma away from a minimum energy state. The plasma globally relaxes to a new minimum energy state, conserving helicity according to Taylor's relaxation hypothesis, and injecting net helicity into the core of the compact toroidal plasma. Controlling the voltage so as to inject net helicity at a predetermined rate based on dissipative processes maintains or increases the compact toroidal plasma in a time averaged steady state mode.