Abstract: Intense far-ultraviolet laser radiation is applied to a workpiece in performance of processes in the fabrication of integrated circuits, including processes of ablation, deposition, impurity implantation and radiation induced chemical processes. Other processes where intense far-ultraviolet laser radiation is applied include hardening and annealing a workpiece by exposure to the radiation. Particular embodiments of the invention herein enables selective removal of a polymer film on a semiconductor substrate by ablative photodecomposition (APD) using intense far-ultraviolet, or shorter wave length, radiation from a pulsed laser requires focusing the laser radiation to provide sufficiently high fluence of laser light energy to ablate a selected area of the polymer to a useful depth in a reasonable time, sometimes referred to as the threshold of fluence of the laser pulses required to produce effective APD of the polymer.

Abstract: Individual fasteners are provided for each of several pre-determined holes along a margin of pages of a document for securing the pages together at the holes, each fastener including: a relatively rigid cylindrical insert having a head at one end, the diameter of the insert cylinder being less than the diameter of the holes in the page and the diameter of the head being greater than the diameter of the holes; an elastic member such as a rubber elastic extending from the insert to a bar and attached to the center of the bar, the length of the insert cylinder being less than the minimum thickness of pages to be bound by the fastener and the length of the cylinder plus the length of the bar being greater than the maximum thickness of pages to be bound by the fastener.

Abstract: A dispenser for mixing fluid materials and dispensing the mixture includes a common passage having an output or dispensing nozzle end and an input end into which the separate fluid materials are injected from separate passages, the common passage being essentially straight and of constant cross section shape and size from end to end, a clean out plunger projecting into the input end of the common passage closing that end when the plunger is at its withdrawn position, a drive for the plunger for driving it through the common passage from the input end to the output end, forcing any material in the common passage out of the dispensing nozzle, so that the common passage is cleaned out and drive for withdrawing the plunger through the common passage back to its withdrawn position so that the materials can again be injected into the common passage and dispensed from the nozzle.

Abstract: A container for low temperature liquefied gas includes inner and outer shells forming a sealed evacuated space around the inner shell to insure low heat conduction from the ambient surroundings through the container to the liquefied gas in the inner shell. The container provides gas at relatively low pressure by drawing the liquefied gas from the inner shell to a heat exchanger where it evaporates and is fed to a user. A vacuum insulated access channel is provided through the shells for a fluid output tube through which the liquefied gas is drawn from the inner shell to the heat exchanger. The channel is formed by a thin wall sealing tube that conducts little heat, because the wall is so thin, sealed to the inner shell and enclosed by a support structure including a thick wall structural tube enclosing the thin wall tube and connected rigidly and sealed to the outer shell for structural support between the shells and also provides an annular space around the thin wall tube that is evacuated.

Abstract: A Super High Frequency (SHF) coaxial cable and connector assembly for connection of the coaxial cable thereof to a relatively low impedance circuit, such as a YIG filter for which the connection impedance is on the order of ten ohms, has a connector providing a port for receiving a conventional fifty ohm coaxial cable plug and includes: a ten ohm SHF coaxial cable having a metal ferrule soldered to the outer conductor at the connector end thereof providing a substantially larger diameter outer conductor at that end than the outer conductor of the ten ohm cable; and a coaxial connector having a coaxial recess in the housing thereof at one end to accommodate the cable ferrule and into which the ferrule is force-fit to make an intimate metal to metal contact therewith, while the ten ohm cable center conductor engages the connector center conductor within the recess; the inside diameter of the metal walls of the ferrule and the coaxial connector housing from the one end of the connector (where the ferrule is atta

Abstract: A Super High Frequency (SHF) cable and connector assembly for connection to a relatively low impedance circuit, such as a YIG filter for which the connection impedance is on the order of ten ohms, includes: a SHF coaxial cable having a metal ferrule soldered to the outer conductor at one end thereof providing a substantially larger diameter outer conductor at that end than the outer conductor of the cable; and a coaxial plug connector having a coaxial recess in the housing thereof at one end to accommodate the cable ferrule and into which the ferrule is force-fit to make an intimate metal to metal contact therewith, while the cable center conductor engages the connector center conductor within the recess; the connector having within a space that is common to the connector housing, dielectric and center conductor and is filled with a suitable dielectric epoxy while the housing and center conductor are in proper alignment so that when the epoxy sets, it captivates the center conductor maintaining it in alignmen

Abstract: A construction set of modular pieces for constructing a scale model of an arrangement of contemporary buildings, such as a complex or cluster of high and low rise buildings located on common plaza areas, is made of several kinds of modular plaza blocks, building blocks, joint pieces for connecting the plaza blocks together, inside rail pieces for providing ridges on the top of the plaza blocks for connecting the building blocks thereto and outside or inside rail pieces for providing railings where desired on a plaza; all of the plaza blocks, building blocks, connecting pieces and rail pieces having dimensions of width and length that are whole number (integer) multiples of the same dimension D, whereby a variety of arrangements of plaza blocks, buildings blocks, and plaza railings may be constructed from a set of such blocks and pieces.

Abstract: An underwater diving plane towed by a boat and ridden by a diver includes a longitudinal diver support member which supports the diver in the prone position, a lateral wing support member with contoured wings attached at the ends thereof and evenly spaced from the center thereof, a pivotal attachment fitting for attaching the front end of the diver support member to the center of the lateral wing support member and one or more control arms that are rigidly attached to the lateral wing support member and that extend therefrom below the diver support member so as to be within easy reach of the diver carried thereon in the prone position, whereby the diver may rotate the lateral wing support member within the pivotal attachment fitting on its lateral axis with respect to the diver support member, thereby controlling the diving angle of the diving plane as it is towed through the water by a tow line attached to the pivotal fitting.

Abstract: In a pulsed laser which is periodically energized so that it emits a pulse of radiation following each periodic energization, a feedback loop control system is provided for controlling energization of the laser so that the laser output radiation pulses are substantially constant over a relatively long period of operation, the feedback loop including a detector for detecting the laser pulses and producing an electrical signal representative of each pulse and a comparing circuit responsive to those electrical signals and a reference signal that represents the constant laser output level desired, for comparing the electric signals and the reference signals producing a control signal for controlling the energy of the periodic energization.

Abstract: In an ultra high frequency (UHF), high power broadcast television (TV) antenna system that includes a radiating antenna located at the top of a tower structure many hundreds of feet high, a transmitter at the bottom of the tower and a circular waveguide transmission line between the transmitter and the antenna carried by the tower, an undesired polarization mode that is transverse to the desired polarization mode for which the antenna system is adjusted is excluded at the top of the tower structure at the end of the circular waveguide transmission line so that the undesired polarization mode does not energize the radiating antenna and, in particular, the undesired polarization mode does not energize the antenna and produce a ghost image in a TV receiver after reflecting from the bottom end of the circular waveguide transmission line back up to the antenna and does not add a standing wave in the circular waveguide transmission line.

Abstract: The coin counting apparatus wherein coins of various denominations to be counted fall upon a rotating coin table that is designed to catch and hold coins of different denominations at different positions on the table so that each held coin may be detected before it is collected and a count initiated of the value of the coins collected: a denomination code is provided on a code disc driven in rotation in synchronism with the rotation of the table, the code being defined by arc segments of the disc that correspond to the radial positions of coins held on the table; the coins that are caught and held on the table are detected and an initiating signal is produced when a coin so held is detected; at the same time, the corresponding code disc arc segment is detected and signals representative of these are produced; and digital computer circuits responsive to the initiating signal and the code disc signals calculate the value of coins so detected.

Abstract: An athletic shoe for use on artificial turf has an outer ground sole with cleats that project perpendicular from the surface of the sole, each cleat having a channel on one side extending to the projecting end of the cleat, the cleats being arranged on the sole so that the channel side of each cleat faces opposite to the most likely direction of force on the end of the cleat with respect to the sole during normal athletic activity of the wearer on artificial turf, whereas the side of the cleat opposite the channel is tapered so that the artificial turf fibers in the path of the cleat as it moves against and parallel to the artifical turf are gathered in the channel and the cleat slides along a gathered bunch of such turf fibers, bears upon the bunch of fibers so gathered and wipes the fibers of moisture in case they are wet; thereby providing a dry contact between the end of the cleat and the gathered bunch of fibers and so insures relatively high friction between the cleat and the turf fibers even when the t

Abstract: A cable dispenser stores and dispenses cable from one of several coils of cable held on separate interchangeable cable coil holding reels stacked one above another on shelves on a cart each reel including a spool on a turntable platform that has four outside corners providing four points of support therefor, at least two shelves on the cart spaced apart one above another a distance sufficient to clear the height of a reel loaded with a coil of cable, each shelf holding one loaded reel at the four points of support therefor, in a position from which cable can be dispensed from the outside of the coil held thereby. The cart shelves above the bottom shelf is sufficiently open at the center thereof that loaded reels can be lifted from the cart or placed on the cart through the center openings in the shelves above, for easy loading and unloading of the cart.

Abstract: Undesired, interfering narrow band received signals in a Loran-C receiver are automatically rejected and the resulting distortion of the received Loran beacon signals caused by this rejection is automatically compensated for. The received Loran-C beacon signals in the band 90 to 110 KHz are fed through a narrow band, variable reject filter that rejects the undesired signal and is controlled by a feedback circuit in response to an interference detector in the receiver, so that the reject filter is automatically set at the interfering signal, rejecting it. Meanwhile, distortion of the received Loran beacon signals caused by the rejection is compensated for by an automatic circuit that varies a delay and add circuit in the Loran receiver to compensate for the distortion.

Abstract: A sheet of flexible material such as fabric or plastic is provided with flaps, loops and ties so that it can be laid over a pile of loose material with rigid sticks attached to loops along two parallel edges of the sheet and the rigid sticks can be grasped by the user and forced together between the surface and the material forming an open ended envelope containing the material which is then turned over and the flaps at the end of the envelope pulled up and tied over the ends to close the envelope while the two sides made rigid by the sticks are tied together. Then the sticks may be removed leaving the flexible sheet formed into an envelope that encloses the material and so forming a bag containing the material for disposal.

Abstract: In the testing of a digital test system (e.g. the automatic testing of a digital integrated semiconductor circuit) it is necessary to provide a plurality of clock signals (periodic pulse signals), each with a definite phase relationship to a particular clock signal called the "reference". For example, when the clock signals are all in the same phase they define a common wavefront without skew.

Abstract: A portable Hibachi-type charcoal burning food grill has incorporated therewith a structure for kindling the charcoal and consists of two separate parts: the first part is a shallow upstanding Hibachi-type container for the charcoal, open at the top like a conventional Hibachi and also open at the bottom, the bottom opening being covered by a grate on which the charcoal is piled; and the second part is a tapered upstanding kindling enclosure below the Hibachi that may be integral with or separate from the Hibachi. When provided separately, the kindling enclosure is open at the top, tapers outward from the top to the bottom thereof and has a multitude of uniformly spaced air passage holes therein. The top of the separate kindling structure fits the bottom of the Hibachi so that flames from burning kindling material such as paper, in the kindling enclosure, fed by air flow through the spaced air passages therein flows upward through the opening in the bottom of the Hibachi and ignites the coals on the grate.

Abstract: An I type (straight) double ridge waveguide rotary joint is provided by connecting input and output sections of double ridge waveguide, oriented along a common axis, to opposite ends of a coaxial line rotary joint that is on the same axis. The input and output sections each connect to the coaxial line rotary joint by a transformer that connects one ridge to the center conductor of the adjacent coaxial line and the other ridge to the outer conductor of the coaxial line, the connections being made in several transitions to avoid an abrupt change of impedance in progressing along the axis through the transformer.

Abstract: An antenna for transmitting or receiving, for limited fine scan or wide angle scan, or for producing multiple beams has a plurality antenna radiators or receivers (apertures) in a linear array, coupled to a smaller plurality of antenna networks so that many of the antenna apertures are coupled to two of the networks and the networks are all coupled to a common transmission line. For a spatial scanning system, each network is coupled to the common transmission line through a variable phase shifter so that the radiation patterns of the apertures combine to define a beacon of predetermined fine pointing direction that can be used to spatially sweep a sector by varying the phase shifters according to a predetermined schedule. Furthermore, by shifting the point of feed to the networks, the pointing direction is caused to switch in relatively large steps, from one sector to another sector.

Abstract: A modular microwave tunnel oven with multiple microwave sources and controlled atmosphere for the continuous processing of food products has a cruciform shaped conductive cavity of extended length through which a conveyor belt runs for carrying food products through the oven; the conveyor belt and other structure within the cavity are fabricated of non-toxic, heat resistant materials that are transparent to the microwave radiation and have inner surfaces that contact the food products that can be easily cleaned; one side of the cavity formed by one or more hinged doors opens completely along the extended length making access for changing the conveyor belt and/or cleaning the oven unobstructed; and microwave energy is launched into the cavity above and below the conveyor belt; whereby the microwave energy fields tend to be greater along the middle of the conveyor belt than along the edges thereof.