Abstract: A plastic tube and tube end cap for installation in a metal tube or the like when the metal tube is positioned extending through a passage in a tube sheet, such that the plastic tube and end cap cooperate to accurately position an explosive charge which, when detonated, causes the plastic tube to expand outwardly against the metallic tube with such force that the metal tube makes intimate contact with the respective passage through which it extends in the tube sheet, without contaminating or damaging the metal tube in the process. The subject plastic tube and tube end cap have portions which cooperate to hold them together and further cooperate so that when the plastic tube is inserted into the metal tube the explosive charge will be accurately positioned.

Abstract: An improved apparatus for stringing rackets such as tennis rackets and the like including improved means for locking the racket against movement in different fixed positions during stringing to prevent loss of string tension, improved string gripping and holding means, improved bearing means for the string tensioning means to improve the accuracy thereof, improved and more universal means for clamping a racket in position on the stringing machine including means by which a greater range of racket types, sizes, and shapes can be accommodated, and improved means for adjusting the operating speed of the machine.

Abstract: A feed apparatus for the input of a printing machine or the like having stationary and movable platform portions and upwardly extending adjustable guides, the forward end of the movable platform portion including a cavity portion which communicates with a source of suction pressure for gripping an article to be printed, and a guide member spaced from the cavity to form a space through which the forward edge of an article to be fed moves toward the printing machine. The subject feed unit also includes a drive for reciprocating the movable bed portion, and a timed valve for communicating the cavity to the source of suction pressure and an adjustable rod member to adjust the timing of the suction producing valve.

Abstract: A power source particularly for use in remote locations which can be operated off of conventional sources of power such as off a battery source, said power source including means for distinguishing between different voltages and including means to indicate when power has been reduced from the power source or battery below a safe level for taking additional power therefrom. The device also includes means for preventing a polarity reversal from causing damage and it includes adapter means by which the subject power source can be plugged into a conventional receptacle such as into a cigarette lighter receptacle on the dashboard of an automobile or similar device. The subject device is particularly suitable for use by campers, emergency crews, and others who need power at remote locations and from a conventional source of power such as from a vehicle battery.

Abstract: A magnetically controlled toy including a toy vehicle with magnetic means located therein and means to manipulate and guide the vehicle including a control member or wand which includes magnetic means that cooperate with the magnet means in the vehicle to produce magnetic coupling force therebetween.

Abstract: A control circuit for vending and other coin controlled devices which have arrangements to payback amounts deposited in excess of the vend price, the vending machine having a plurality of coin tubes for respectively containing coins of different denominations for payback, each tube having a sensor associated therewith to produce a response whenever the quantity of coins contained therein has fallen below a predetermined quantity insufficient to be used for payback, the improvements comprising a control circuit for controlling the operation of the coin tubes during payback and escrow operations of amounts deposited incuding circuit elements for controlling the making of paybacks and escrowing in the highest possible denominations of coins, said circuit elements responsive to responses produced by the sensor on the respective coin tubes including apparatus for shifting a payout operation from paying back of higher denomination coins to paying back of lower denomination coins whenever the quantity of coins in th

Abstract: A magnetic particle device such as a magnetic particle brake in which the flux producing means are mounted in a stationary member, said device having improved means for dissipating heat, improved means for locating the heat sensitive members including the bearing members relatively remote from the region where most of the heat is generated, the rotatable portions of the subject devices being mounted between stationary portions thereof, and means forming an improved magnetic gap construction for such devices. The device may also include improved means for circulating a liquid coolant from an external source through stationary portions of the device and simplified relatively trouble free means for making the electrical connections to the flux producing means.

Abstract: A rechargeable applicator for dispensing substances especially substances in a foam or foam-like condition including dispensing them into body cavities or elsewhere, the applicator includes a pressurized container having one end which is normally closed by a valve and filled with a substance under pressure for dispensing therefrom, and cooperatively associated with the container is an expandable chamber into which some of the contents of the container can be expelled in a foam or foam-like condition when the container is withdrawn but not separated from the chamber, the container thereafter serving as a plunger for expelling the contents of the chamber into a body cavity or elsewhere where the substance is to be used.

Abstract: A pulse quaternary modulator especially to enable laser communication systems when working at high data rates to be able to operate on less laser power and on a modulation format that improves modulation efficiency. The subject modulation means can be used in transmitters and receivers and include means that make use of polarization changes in the modulator to create selective high speed electronically controlled optical time delays, and it also includes means for using a combination of polarization state and pulse position information to represent information choices. The subject means are also able to achieve M-ARY modulation when using as a source a mode-lock laser which produces output laser pulses.

Abstract: An electrooptic crystal having improved characteristics including an improved light extinction ratio and a process of making same including etching certain portions of the lateral surfaces thereof so as to relieve surface and other strain in the crystal.

Abstract: A combination commode construction having a water closet common to more than one commode, and separate control means on the water closet for individually flushing each of the separate commodes, said separate flushing means including means to control the amount of flush water used in the flushing of each commode.

Abstract: An improved laser construction having relatively simple single element means located in the laser cavity for simultaneously mode-locking and frequency doubling the laser output, said single element means including a crystal such as a non-linear barium sodium niobate (BSN) crystal properly excited to achieve acoustooptic loss modulation as well as to mode-lock the laser output, and means for locating the crystal within the laser resonator cavity.

Abstract: A concatenated surface wave device having delay line capabilities for use in correlating electric signals of various types and forms including analog signals, binary signals, and binary modulated signals, said device including means forming a specially constructed conductive surface pattern over which the signals to be correlated are propagated, said surface pattern including input transducer means at a location where input signals to be correlated are introduced for propagation over the surface, a plurality of tap locations on the surface at spaced locations extending away from the input transducer means, and means for sampling a propagated signal at selected surface locations including at selected ones of said tap locations to determine the locations of places where the signals to be correlated are in agreement and are and are in disagreement. The subject correlator also includes means by which signal components can be introduced at selected tap locations along the device.

Abstract: An apparatus and process for sterilizing substances and particularly food products such as food spices and seasonings which are in a processed or unprocessed condition and are in a powdered, granular, flaky, leafy or similar conditions, the apparatus including means for subjecting the product while in a container such as a plastic or plastic-like bag, first to a subatmospheric condition and thereafter injecting a gaseous sterilant at a central location in the product whereby the sterilant diffuses outwardly through the product toward the walls of the container sterilizing the product in the process and gradually escaping through the container leaving the packaged product in a sealed closed and sterilized condition.

Abstract: Fiber reinforced metal sheets coated with an alloying material for use in forming fiber reinforced metal matrix composite structures by means of eutectic bonding processes and the structures formed by said sheets.

Abstract: Improvements in skin closures includng a device for uniting and holding separable closure members and skin portions attached thereto accurately together and to prevent separation thereof by forces which might otherwise cause the united members to separate. The subject construction also includes portions for accurately aligning and holding the separated edges of a skin wound or incision together during healing in such a way as to minimize or prevent the formation of scar tissue. The subject closures are easy to apply quickly and accurately even under adverse conditions such as in first-aid treatment during emergencies, under disaster and wartime conditions, in emergency wards, in field, forest and wilderness situations and also under more controlled conditions such as in operating rooms and doctors' offices particularly as the final step in completing a skin closure.

Abstract: Locking means to prevent movement between relatively movable members such as between sliding windows or sliding doors, said locking means including a body portion having a flange formed adjacent opposite edges, said flanges being substantially parallel to each other and each of said flanges having a projecting member adapted to be received in a hole provided in one of said relatively movable members when the locking means are positioned to prevent relative movement therebetween.

Abstract: A versatile coin controlled circuit for use in vending and other coin operated machines, said circuit including relatively simple means for establishing a vend price and for simultaneously controlling the amount refunded for each deposit in excess of the vend price. The subject improved control circuit also includes novel logic circuitry operable under control of coin actuated switches, .[.novel means.]. .Iadd.a novel accumulator circuit .Iaddend.for accumulating amounts deposited including use of integrated circuits, .[.novel means.]. .Iadd.a novel timing circuit .Iaddend.for timing certain circuit and machine operations, and novel circuitry in the input, vending, and change pay-out portions of the circuit. The subject circuit represents a new generation of coin controlled circuits and is simpler and more compact than known circuits used for the same or similar purposes, and it contains far fewer parts and components.