Abstract: The present invention is employed in a system which has a bit map memory connected to a CRT display device and the CRT display device can display a fixed region of information and a scrollable region of information. In a preferred embodiment, the system uses a graphic display control circuit to change starting addresses and length ending values of the fixed and scrollable regions in the bit map memory. By changing the starting address one scan line per frame, without any actual transfer of data in memory, from one location to another location, the present system effects a "smooth" scroll. The system is able to scroll upward and downward. The system uses logic circuitry to load an off screen segment of the bit map memory with additional scrollable information, so that (in an upward scroll load) as a top line of the scrollable information region is no longer displayed, new information will be displayed at the bottom line of said scrollable region.

Abstract: A multi-stage modem status register, which has at least one stage which is ordinarily unused, is employed to receive operating condition signals from an associated modem. In addition bistable circuitry, which exists as part of the control circuitry of a transceiver, is used: (1) to provide a first binary signal when a data processor (with which the present system is used), generates a "resynchronization request" signal; and (2) to provide a second binary signal in response to resynchronization being achieved. The bistable circuitry is connected to the above described ordinarily unused stage to enable one or the other of the binary signals to be present. The multi-stage modem status register is regularly interrogated and the results are sent to both a memory and a comparison device. Output signals from the memory are transmitted to said comparison device, at the time that the results of a subsequent interrogation are transmitted to the comparison device.

Abstract: A cascaded fluid heating for electrically heating to fluid, such as a gaseous fluid in a flameless torch, to a high temperature includes a pump to pump a relative constant stream of fluid through a pair of heating chambers arranged in series. A first electric heating element formed of a nickel-iron alloy having a substantially linear positive temperature coefficient of resistance up to 1100.degree. F. is disposed in the first chamber and heats the fluid stream to a first temperature. A second heating chamber receives the heated fluid from the first chamber and contains a second electric heating element of a material, such as Kanthal A, which does not oxide at temperature up to 2000.degree. F. for heating the fluid to a higher temperature. The first electric heating element acts as a sensor for a temperature controller for the first heating element whereby the current supplied by the controller to the first heating element responsive to the changes in resistance of thereof.

Abstract: The present hearth is composed of a plurality of support bars, which are made of graphite in the preferred embodiment, and which are arranged to be parallel to the length of the hot zone chamber and orthogonal to the mouth of the vacuum furnace. Each of the support bars has a groove, or a channel, formed in its upper surface and disposed in each of said channels is one or more rotatable molybdenum load support rods each of which has been impregnated, or coated, with titanium nitride. To the underside of each support bar there are secured molybdenum bar support rods which are located and secured to hold the support bars away from coming in contact with the heating elements of the hot zone.

Abstract: The present invention includes a heat sink device which, in a preferred embodiment, has a number of fins extending from a flat base section. In addition, there are matching grooves formed in a pair of said fins and snapped into said grooves, there is located a plastic clip-on member. The clip-on member is designed to be spread, or temporarily deformed at its ends, in order to be clipped onto a holder which is holding an active element (a heat generating element), such as an integrated circuit. When the clip-on member is so clipped onto the holder, it applies force to hold said flat base section of said heat sink means against the section of the holder which overlies the active element to thereby conduct heat from the active element. The clip-on member can be readily removed if, for instance, the integrated circuit fails and in this way the heat sink is not wasted.

Abstract: The present arrangement includes a first tape leader which can be readily and automatically coupled to a second tape leader. In a preferred embodiment the first tape leader is connected to be wound on a take up reel while the second tape leader is connected to a tape to be pulled from a supply reel. The first tape leader has one end formed into a mushroom like tab with a supporting stem. The second tape leader has a locking aperture at one end thereof which is proportioned so that a wide section thereof can fit over said mushroom like tab while a narrow section thereof will accept the stem but block passage of the mushroom tab therethrough. Accordingly when the tab is passed through the wide section and the leader is moved (pulled) toward the narrow section of the locking aperture, the tab and part of the stem become locked in the narrow section. Hence the leaders are locked, or buckled, to enable the first tape leader to pull the second leader.

Abstract: The present invention includes a counter device which counts pulses from a pulse source and provides the basis for a control gate signal. Logic circuitry is connected to the counter device and through said logic circuitry there are provided the leading edge, the interim voltage level signal, and the trailing edge of said control gate signal. The counter device is connected from at least two latter stages to said logic circuitry to provide two possible trailing edges, which in turn selectively define two different length gate signals. Said logic circuitry is further connected to address signal circuitry and in response to a first address provides a control gate signal of a first length and in response to a second address provides a control gate signal of a second length.

Abstract: The present invention provides, in a preferred embodiment, a cylindrical stainless steel cathode with end pieces thereon to form a cathode chamber within. In addition, in a preferred embodiment, there is a stainless steel rod which passes axially through the cathode chamber and which is electrically insulated therefrom at the end pieces. The stainless steel cathode has first and second apertures formed therein with the first to be connected to a source of ionizable gas and the second to act as the opening through which there passes a stream of ions to an ion beam target. A magnetic flux source is coupled to the cathode chamber to pass magnetic flux therethrough and a voltage source is connected between the anode and the cathode to provide an electrostatic field therebetween whereby when ionizable gas is fed into the cathode chamber, it is ionized and a stream of ions emanates from the second aperture.

Abstract: The present invention includes a heat insulation wall which is formed in a closed plane configuration, such as a circle, and which has first and second pairs of apertures formed therein to accommodate cooling (inert) gases which are introduced into the heat chamber defined by said insulation wall. The cooling gases pass into the heat chamber and out of the heat chamber through the first and second pairs of apertures to cool a workpiece which has been heat treated. The pairs of apertures lie (in pairs) opposite one another on the periphery of the heat insulation wall. Outside of the heat insulation wall, lying opposite the first pair of apertures, is located a heat reflecting member and opposite the second pair of apertures, outside of the heat insulation wall, there is located a heat reflecting baffle. Accordingly when the heat chamber is operating in a heat treating mode any heat which passes through an aperture or a pair of apertures is reflected back through said apertures into the heat chamber.

Abstract: The present invention is an arrangement and a method to scan a printing plate and determine the ratio of areas which will carry ink, during a printing process, to areas which will not carry ink, during a printing process, so that adjusting means, at the various stations along an ink reservoir, can be properly set to effect correct ink flows at those various stations.

Abstract: The present invention employs a mass which is movable toward or away from a detection device. The detection device generates electrical signals which because of their polarities and amplitudes act, when transmitted to an electrical coil, to provide torque and move the mass to an equilibrium position. The electrical signals also serve as a measure of forces on, or an indication of a position of, the device with which the present detector is used. The mass and the coil are mounted on shaft means which in turn is mounted in a pair of ball bearing assemblies. The ball bearing assemblies fit around the periphery of the shaft to provide substantial lateral restraint and further fit at the ends of the shaft to provide substantial vertical restraint. In addition the present invention provides a pair of heavy flux density producing magnets, which are separated by a gap within which the coil moves.

Abstract: The present invention employs a heating element means which is formed into an endless configuration, i.e., a closed plane, circular configuration, loop, etc. In a preferred embodiment the heating element means comprises a molybdenum strip although a plurality of molybdenum sections, which are secured to one another to make up a continuous sectionalized strip could be used. When such a strip conducts electrical current there is heat generated (I.sup.2 R) and such heated strips are the source of heat for the hot zone chamber of a vacuum furnace. There are a number of such continuous strips which make up the overall heating element means for a hot zone chamber. The continuous strips, or heating elements, each has first and second terminal means secured thereto at respectively first and second different locations, so that between said first and second terminals there exist two separated electrical current paths, or a bifurcated path.

Abstract: The present invention employs a material mass to respond to forces, such as gravity, and the material mass is secured through an intermediate beam, or arm, to a wire coil. The intermediate arm has upper and lower shafts secured thereto, which, when mounted in some form of bearing means, permit the arm, or beam, to rotate, thereby rotating the mass and the wire coil, in response to forces applied to the material mass and forces applied to the wire coil. The coil is formed to pass through a narrow gap between a pair of permanent magnets whereby the coil is subjected to a high density magnetic flux.

Abstract: The present invention includes a plurality of ceramic oxide wall panels which are defined by a thickness dimension, depth dimension, and width dimension. The ceramic oxide panels are beveled along their width sides so that when they are held together along their width sides, they form a closed plane, that is a polygon or a substantial circle configuration. At each abutment position of two adjacent wall panels, there is formed an abutment angle. In addition a plurality of overlap support panels of ceramic oxide is employed and each is formed to have an angle which fits over an associated one of said abutment angles. Each overlap support panel is secured to, and partially overlays, two abutting wall panels, thus providing support for said two adjacent abutting wall panels. In a preferred embodiment each overlap support panel abuts two adjacent support panels.

Abstract: The present invention provides, among other things, a plenum which is formed around the hot zone chamber of a vacuum furnace and which has a common wall with the hot zone chamber. The present arrangement includes having a plurality of apertures formed in the common wall and a plurality of baffles, or deflecting means, secured to the common wall within the chamber of the plenum. The baffles, or deflecting means, are formed to be angular with respect to the common wall and each deflecting means is disposed and formed to deflect gas (in all likelihood, inert gas), passing through the plenum, into and through an associated aperture and thereby into the hot zone chamber. By using the baffles, the inert gas, which is fed into the hot zone chamber from the plenum, is so fed with improved and significant uniformity.

Abstract: The present invention provides a low mass, flexible heat transfer member which is made of a suitable material to transfer heat, as well as a plurality of independent heat generating members to provide zoned heat along a portion of the length of said heat transfer member. The heat generating members are encased in an electrical insulation material which is secured to the heat transfer member. The consolidated structure, i.e. the heat transfer member and heat generating members constitute a flexible strip. The ends of said flexible strip are actually sections of the heat transfer member and these ends are respectively looped around two pins, or studs, and over the respective loops there is positioned an associated slotted hollow tube. The slotted hollow tube is formed to be located in a base of a machine with which the flexible heating means is used.

Abstract: The present invention includes a heating element which is secured to a rigid member and which is located so that when a plastic like material is being formed into a package or bag, by effecting a seam along the side of the package, the inside of said side seam will be heated, in addition to said outside of said side seam to help provide a better sealed seam.

Abstract: The present invention is directed to graphite shields (or shields of other materials which may react chemically or be oxidized in a vacuum furnace but which when condensed do not readily conduct electricity) or graphite shield liners used to protect electrical insulating devices from having electrical shorting path means develop thereon.

Abstract: The present invention is a duct arrangement for use with a vacuum furnace to permit inert gas to be supplied continuously to the hot zone enclosure of a vacuum furnace. The novel duct arrangement includes a plenum means that, in the preferred embodiment, is formed so that its inside wall is the outer wall of the hot zone enclosure and which is disposed to be wrapped around 95% of the hot zone enclosure (within the vacuum chamber) with which it is employed. The plenum is sealed at both ends and is formed to have a plurality of holes in the common wall of the hot zone enclosure and the plenum. Into each of said holes there is fitted a removable nozzle member. A relatively large hole is formed in the outside wall of the plenum to permit inert gas to be fed into the plenum and through the nozzles into the hot zone enclosure to cool the work piece therein.

Abstract: The present invention provides, in a sputtering apparatus, an anode means interposed between the cathode and the substrate (upon which material is to be deposited) which acts to intercept electrons so that they do not impinge on the substrate and which is formed to permit the material dislodged from the cathode (by impinging ions) to pass beyond the anode and be deposited on the substrate. While the present invention can be usefully employed without the aid of a magnetic field, in a preferred embodiment, the present invention is made part of a planar magnetron.