Patents Assigned to Burroughs Corporation
  • Patent number: 4669029
    Abstract: The present disclosure describes a housing module characterized in that it may be readily slid onto a counter-like unit which provides support therefor. The module finds particular application in the housing of electrical components, wherein the latter may be located either in a tray-like section disposed on the surface of the counter-like unit or in a box-like enclosure, below the unit. The components are electrically connected and communicate with one another via cables which are routed within the module and which may be pre-wired, thereby eliminating cable through-holes in the unit.
    Type: Grant
    Filed: October 25, 1985
    Date of Patent: May 26, 1987
    Assignee: Burroughs Corporation
    Inventors: Richard N. Svenson, Thomas S. Hicks, Thomas N. Good
  • Patent number: 4664252
    Abstract: A scrub wheel is provided in document processing equipment where a wheel is removable and replaceable. The wheel is held between a base member and a top member where the top member comprises retaining lugs at the distal ends of retention arms which engage the lower surface of a ledge in the center of the base member subsequent to passage therethrough when in a correct angular orientation, the lower surface comprising recesses which bind the top member and the base member under the elastic restitution force of a helical spring in the top member.
    Type: Grant
    Filed: December 9, 1985
    Date of Patent: May 12, 1987
    Assignee: Burroughs Corporation
    Inventor: Ross E. Galbraith
  • Patent number: 4665536
    Abstract: A programmable unit for attachment to a work-station whereby power to the work-station will be shut off after a pre-set time-period, unless work-station activity occurs before the outset of the time-period, when the pre-set time-period will initiate again.
    Type: Grant
    Filed: March 10, 1986
    Date of Patent: May 12, 1987
    Assignee: Burroughs Corporation
    Inventor: Dongsung R. Kim
  • Patent number: 4663539
    Abstract: Each digital module in a network is provided with a local power switching control subsystem wherein the local module uses a local power switching control logic card which controls main power and subordinate power units in a predetermined sequence. Power up/down conditions or incremental/decremental voltage conditions can be effected by a local operator or by an instruction from a remote master logic unit. The power subsystem can sense failure conditions and communicate this information to the remote master unit or to a local operator.
    Type: Grant
    Filed: November 29, 1984
    Date of Patent: May 5, 1987
    Assignee: Burroughs Corporation
    Inventors: Larry D. Sharp, Alan T. Theis
  • Patent number: 4661886
    Abstract: A magnetically sealed integrated circuit package includes a substrate having a cavity for holding multiple integrated circuit die, a lid for covering the cavity to protect the die, a ferromagnetic seal ring which is fixed to the substrate around the die, and a magnet which is fixed to the lid and coincides in shape to the seal ring for magnetically attracting the seal ring to hold the lid in place when the lid covers the cavity.
    Type: Grant
    Filed: October 3, 1985
    Date of Patent: April 28, 1987
    Assignee: Burroughs Corporation
    Inventors: John A. Nelson, Dale L. Robinson
  • Patent number: 4660330
    Abstract: Described is a novel "bevel tool" and associated technique for holding prescribed magnetic head workpieces and placing them in prescribed constant angular relation with a rotary lapping means; this tool preferably including a workpiece-receiving pocket adapted to be spread apart and to resiliently grip the work, with one or more guide-faces surrounding this pocket and adapted to indicate a prescribed orientation of the work against a prescribed "lapping plane".
    Type: Grant
    Filed: September 3, 1981
    Date of Patent: April 28, 1987
    Assignee: Burroughs Corporation
    Inventor: Otto Fuchs
  • Patent number: 4658353
    Abstract: A system for controlling communication in a network of digital modules where each digital module has a maintenance processor which connects the digital module through a network bus to every other digital module's maintenance processor. Each transmitting module can lock up the network bus temporarily for data transmission operations to a specifically addressed receiver module. This system basically permits free communication access of any digital module to any other digital module.
    Type: Grant
    Filed: November 20, 1984
    Date of Patent: April 14, 1987
    Assignee: Burroughs Corporation
    Inventors: Bruce E. Whittaker, James H. Jeppesen, III, Andrew W. Beale
  • Patent number: 4657602
    Abstract: An integrated complementary transistor circuit at an intermediate stage of manufacturing comprises a semiconductor substrate having dopant atoms of a first conductivity type and having a substantially flat major surface; a patterned layer of material that is essentially impervious to oxygen diffusion covering first and second spaced apart areas on the surface and having openings which expose the surface between the areas; a channel stop region having dopant atoms of the first conductivity type with a larger doping concentration than the substrate throughout that portion of the surface which is exposed by the openings; and a well region having dopant atoms of a second conductivity type opposite to the first type in the substrate under all of the second area and extending under an adjacent portion of the channel stop region but terminating before reaching the first area; the well region also having a depth and doping concentration at the center of the second area which is substantially smaller than the depth an
    Type: Grant
    Filed: June 10, 1983
    Date of Patent: April 14, 1987
    Assignee: Burroughs Corporation
    Inventor: Donald L. Henderson, Sr.
  • Patent number: 4655368
    Abstract: An autoteller accepts on a ramp exchangeable banknote cassettes which can only be opened at the predetermined angle of the ramp when a key assembly on the ramp is presented to a lock. The cassettes may only have the key assembly presented to the lock when not on the ramp at an angle to the horizontal, whereat opening of the doors on the cassette is prevented by a blocking bar swinging to engage a notch in the opening mechanism to prevent operation of the opening mechanism. A processor in the autoteller accepts a password from an internal keypad, enters a wide access bank service routine if a first password is provided and a restrictive access third party service routine if a second password is provided, shutting down the autoteller if no correct password is provided within a predetermined number of tries in a predetermined time.
    Type: Grant
    Filed: March 27, 1985
    Date of Patent: April 7, 1987
    Assignee: Burroughs Corporation
    Inventors: Victor E. Bateman, Agnelo F. R. Gomes
  • Patent number: 4654538
    Abstract: A power supply circuit including A.C. input of either 110 volts or 220 volts coupled to a full diode bridge, across the output of which are provided series connected capacitors across which the desired system operating voltage appears. A voltage-controlled current generator for driving a diac and triac is connected between the input supply and the bridge capacitors. At 110 volt input, the current generator closes the triac and the circuitry operates as a voltage doubler to provide the desired system voltage. At 220 volt input, the triac remains open, and the full bridge and capacitors provide the same desired system voltage.
    Type: Grant
    Filed: November 5, 1984
    Date of Patent: March 31, 1987
    Assignee: Burroughs Corporation
    Inventor: Patrice R. Lethellier
  • Patent number: 4654102
    Abstract: A method and apparatus are shown for use in adding electrical connections to existing printed circuit boards. To this end, apparatus in the form of a multilayered pad is provided which has an adhesive layer over at least part of one face which is responsive to heat so that the pad can be bonded by heat to the surface of a printed circuit board. The other face of the pad includes a layer of stainless steel to which nickel wire can be stitched, or welded. A method according to the invention includes cutting a sheet of pads into individual pads, placing a plurality of pads, adhesive side down, on the surface of a printed circuit board, heating the pads to bond them to the board, and stitching (welding) wire to a succession of pads to complete a series of new connections. Some pads include plated-through-holes enabling connections to be completed from the pads to existing circuitry on the boards and to components mounted in the holes by the use of flow soldering techniques.
    Type: Grant
    Filed: May 20, 1986
    Date of Patent: March 31, 1987
    Assignee: Burroughs Corporation
    Inventors: Jean C. Wery, Michel Jehay, Andre Job
  • Patent number: 4654780
    Abstract: A parallel register-transfer mechanism has been disclosed above for use in the evaluation of expressions of a variable-free applicative language stored as binary directed graphs. The expression is reduced through a series of transformations until a result is obtained. A register file is provided with several crossbar networks interconnecting the various registers in the file for simultaneous transfer of their contents.
    Type: Grant
    Filed: June 5, 1984
    Date of Patent: March 31, 1987
    Assignee: Burroughs Corporation
    Inventors: Gary L. Logsdon, Mark R. Scheevel, Brent C. Bolton
  • Patent number: 4650178
    Abstract: A document stacker assembly including a plurality of document stackers each having a bin wherein documents are selectably stacked against a bin wall member. A belt moves documents along a document track and an idler wheel is pressed against the belt in each stacker assembly. A flicker wheel is driven to rotate by pressure thereagainst by the rotating idler wheel. A solenoid is operable selectably to move a document deflector pivoted about the flicker wheel axle to deflect a document along the track into the pinch between a central waisted portion of the flicker wheel and the idler wheel. The document is urged into the bin and the trailing edge of the document, having disengaged from the pinch between the idler wheel and a waisted portion of the flicker wheel is engaged by projections on the unwaisted top and bottom serrated portions of the flicker wheel, to urge the document further into the bin and to disengage the trailing edge at a predetermined location therein.
    Type: Grant
    Filed: August 12, 1985
    Date of Patent: March 17, 1987
    Assignee: Burroughs Corporation
    Inventors: David Steele, Robert G. Bradford
  • Patent number: 4649472
    Abstract: Multi-phase subroutine control apparatus for use in a data processing system which provides for the concurrent execution of a plurality of tasks in a multiprogramming and multiprocessing environment. Subroutine control operations are staged so as to share common hardware in a manner which in effect provides a plurality of phased concurrently operating subroutine control circuits wherein each circuit provides control for a different one of a plurality of concurrently executing tasks. The common subroutine hardware includes a multi-level stack for each task and a fast access return address register which permits a return address to be rapidly made available when required during execution of a task.
    Type: Grant
    Filed: March 14, 1984
    Date of Patent: March 10, 1987
    Assignee: Burroughs Corporation
    Inventor: Dongsung R. Kim
  • Patent number: 4648737
    Abstract: Means for coupling together two assemblies wherein each assembly includes a hole in which a bracket can be inserted, with the brackets being held together by a lock. Additionally, the assemblies are coupled together by a rotatable locking plate which cannot be rotated to disconnect the assemblies when the brackets and lock are in place.
    Type: Grant
    Filed: June 24, 1985
    Date of Patent: March 10, 1987
    Assignee: Burroughs Corporation
    Inventors: Ralph J. Lake, Jr., Thomas P. Iosso
  • Patent number: 4647850
    Abstract: An integrated circuit for measuring conductor misalignment comprises: a set of 2n+1 conductor pairs where n is a predetermined positive integer; each conductor pair includes a U-shaped conductor having a central axis; each conductor pair also includes a rectangular shaped conductor having a central axis and which is narrow enough to fit between the legs of the U-shaped conductor provided their central axis are aligned; and the rectangular shaped conductor of each conductor pair has its central axis a distance .delta.+k.DELTA.d from the central axis of the U-shaped conductor where .DELTA.d is a fixed increment, k is an integer between +n and -n that differs for each conductor pair, and .delta.is a misalignment between the central axis of each conductor pair.
    Type: Grant
    Filed: October 5, 1984
    Date of Patent: March 3, 1987
    Assignee: Burroughs Corporation
    Inventors: Brian M. Henderson, Alan M. Gundlach, Anthony J. Walton
  • Patent number: 4647852
    Abstract: The present disclosure describes an assembly which has particular application in the testing of printed circuit boards. More specifically, the assembly is comprised of an apertured holding plate which is registered with the board under test, and a probe subassembly. The latter includes a body member having a spring-actuated plunger type probe and a hook-like member. In operation, the body member is advanced toward the plate and the probe and hook-like member enter respective plate apertures. As electrical contact is made by the probe with a desired test location on the board, the hook-like member locks the body onto the plate. The body member is so formed that subsequent pressure applied thereto will release it from its locked condition.
    Type: Grant
    Filed: September 25, 1985
    Date of Patent: March 3, 1987
    Assignee: Burroughs Corporation
    Inventors: Grant M. Smith, George J. Sprenkle
  • Patent number: 4647925
    Abstract: A circuit which operates on input signals representing multiformatted sequences of idle characters, voice characters, and data characters comprises: a first state machine consisting essentially of a logic array, a register, and a counter. One section of the register is coupled to receive the input signals and another section of the register together with the counter is coupled to receive respective signals from the logic array. The logic array has input terminals coupled to receive signals from the register and the counter, and in response, generate control signals indicating in which format and which location therein each character is being received. Second, third, and fourth state machines are coupled to receive respective subsets of the control signals from the first state machine.
    Type: Grant
    Filed: June 26, 1985
    Date of Patent: March 3, 1987
    Assignee: Burroughs Corporation
    Inventors: Fazil I. Osman, Ralph O. Wickwire
  • Patent number: 4646231
    Abstract: A method of synchronizing the sequence by which a variety of unrelated activities are executed in a digital processor when the activities are randomly called by multiple callers includes the steps of: providing a single processor queue for holding respective pointers to each different kind of activity that the processor performs; entering the pointer of an activity in the processor queue the first time that the activity is called; providing respective activity queues for each different kind of activity that the processor performs; entering a pointer to the caller of an activity in the respective queue for the called activity each time the activity is called subsequent to its first call; repeatedly executing a single activity pointed to by one pointer in the processor queue until that activity is executed once for each of its callers, provided that if the single activity calls another activity then, executing the single activity only up to the point where the call occurs; and proceeding in the same fashion wit
    Type: Grant
    Filed: July 21, 1983
    Date of Patent: February 24, 1987
    Assignee: Burroughs Corporation
    Inventors: Howard H. Green, Christopher J. Tomlinson
  • Patent number: RE32388
    Abstract: .[.The disclosure is of.]. .Iadd.An .Iaddend.apparatus for generating raster scans on an oscilloscope combined with an electron microscope used for scanning and examining semiconductor devices. A scanning electron microscope can be operated to generate artificial or induced faults in semiconductor memories, and the raster scanner, in carrying out a scan, will visually display on the oscilloscope natural and artificial or induced faulty locations or cells in semiconductor memories. The semiconductor memory under test is positioned at different locations in the microscope, at each of which an artificial fault is generated until a position is reached, at which the artificial fault coincides, or nearly coincides, with the natural fault location as displayed by the raster scanner. When this is achieved, the electron microscope can then be used to examine the naturally faulty location or cell to determine the reason for the fault.
    Type: Grant
    Filed: December 14, 1983
    Date of Patent: March 31, 1987
    Assignee: Burroughs Corporation
    Inventors: James A. Lockhart, Jr., Shung-Huei Chang