Patents Represented by Law Firm LeBlanc & Shur
  • Patent number: 4873686
    Abstract: In a test assist circuit for a semiconductor device, an address input selector (14a) is so switched that an external address signal is supplied to an address decoder (4) to address a memory circuit (3), while an input data selector (14b) is so switched that external input data is stored in an input data register (5), to be stored in addressed memory elements. Information of the most significant bit of the input data register is stored in an input data information storage area (16), and information of the least significant bit of the address decoder is stored in an address decoder information storage area (15). Data read from the memory circuit is stored in an output data register (6), to be outputted to a data output terminal (9) with the information stored in the address decoder information storage area and that stored in the input data information storage area respectively.
    Type: Grant
    Filed: January 11, 1988
    Date of Patent: October 10, 1989
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Tetsuo Tada, Tsuyoshi Yamada
  • Patent number: 4179059
    Abstract: A TIG pipe welding method which employs two sets of machine guide surfaces on the pipe ends. First radially inner guide surfaces cooperate with a sensor coupled to the welding torch to continuously monitor the arc gap between the welding electrode and the weld puddle as the welding electrode moves around the circumference of the pipe. The second set of radially outer surfaces cooperate with a welding carriage to guide the carriage and welding modules around the pipe joint. The carriage is constructed to provide a sealed welding chamber surrounding the electrode. An additional flow of shielding gas is provided around the torch electrode of a TIG or hot wire TIG welding module to augment the normal gas shield.
    Type: Grant
    Filed: April 6, 1977
    Date of Patent: December 18, 1979
    Assignee: Santa Fe International Corporation
    Inventors: Nuke M. Chang, John O. Emmerson, Donald Ritchie, William Hollenbeck
  • Patent number: 4176788
    Abstract: A method for constructing structures to minimize the amount of fuel necessary to heat the structure during winter months as disclosed. The structure of this invention maximizes the heat obtainable from the earth at depths substantially below the frostline by providing a basement having a relatively thin floor of conducting or noninsulating material and walls with a maximum of reasonable insulation both in the basement level and in the living-level first floor of the structure. Grids are provided adjacent walls and below windows and doors at the first floor level whereby cold air within the house will drop to the basement. The external walls are of standard construction with maximum insulation to protect against heat loss from within the structure. The basement floor adjacent the walls may be insulated if desired.
    Type: Grant
    Filed: April 12, 1978
    Date of Patent: December 4, 1979
    Inventor: William P. Holman
  • Patent number: 4176829
    Abstract: A drag guide member for a torch nozzle is disclosed which will guide a burner tip during a metal cutting operation. The drag guide member of this invention is readily replaceable when worn through contact with the kerf. In one embodiment, a gun sight member having shoulders thereon adapted to ride on the edges of the kerf is threadedly received in the lower portion of the burner tip. In an alternative embodiment, a ring member adapted to be threadedly mounted on the circumference of the burner tip is provided. Said ring member mounts spaced gun sights about the circumference thereof so that when one gun sight is worn, the ring may be rotated to position a replacement member.
    Type: Grant
    Filed: January 13, 1978
    Date of Patent: December 4, 1979
    Inventor: Jack B. Dixon
  • Patent number: 4176038
    Abstract: An improved method and apparatus for continuously agglomerating solids of colloidal size or larger suspended in a liquid is disclosed. The process comprises passing the liquid between spaced electrode plates in the presence of a fluidized bed of conductive particles, and subjecting said liquid suspension to an electric field from alternating current applied across said electrodes through the conductive particles of said bed. The turbulence of the particles in said bed has been found to improve conductivity and current efficiency, minimize electrode erosion, and by a mechanical, scrubbing action of the bed particles, minimize fouling or scaling of the electrodes so that the suspending forces of said solids are rapidly and efficiently broken. The agglomerated solids may then be separated from the liquid by conventional means such as skimming, settling, flotation and the like.
    Type: Grant
    Filed: March 22, 1978
    Date of Patent: November 27, 1979
    Assignee: Westinghouse Electric Corp.
    Inventor: Karl Moeglich
  • Patent number: 4169458
    Abstract: An efficient zero clearance fireplace heating device is disclosed. The device includes a conventional metal firebox having closeable glass doors and a flue adapted to communicate with a chimney. The sides and bottom of the firebox are enclosed with mutually spaced metal walls to form a plurality of interconnected chambers for circulating either room air or outside air therethrough. A portion of the circulated air is returned to the room through a vent and a portion is admitted to the firebox for combustion air. The combustion air is initially directed across the interior surface of the glass doors to minimize blackening thereof by smoke from the fire. Baffles may be provided between walls of the interconnected chambers to provide a labyrinthian series of passages for air circulated therethrough whereby heat is exchanged between the walls and the circulating air so that the outside surfaces of the device remain sufficiently cool to permit installation adjacent combustible structural members.
    Type: Grant
    Filed: September 9, 1977
    Date of Patent: October 2, 1979
    Assignee: Shaw's Modular Fireplaces, Ltd.
    Inventor: William S. Shaw
  • Patent number: 4167756
    Abstract: A camera system for providing a split image field of view. The split image camera system utilizes two planar mirrors which are arranged along mutually intersecting planes so as to transmit images from different locations to the camera. The two mirrors are arranged such that their vertical axes are parallel while their horizontal axes intersect along the optical axis of the camera. By placing the reflective surfaces of the mirrors in a direction facing the camera, the camera is capable of viewing images from different locations and thus provides a split image view.
    Type: Grant
    Filed: August 30, 1977
    Date of Patent: September 11, 1979
    Assignee: Lectrolarm Custom Systems, Inc.
    Inventor: William V. Smith
  • Patent number: 4166426
    Abstract: The vessel comprises a pair of laterally spaced elongated hulls having a plurality of upstanding columns spaced therealong supporting a working platform in spaced relation above the hulls a distance slightly greater than the maximum anticipated wave height. The hulls buoyantly support the vessel in a low draft floating condition with the hulls having free-board. The hulls have ballast compartments to submerge the hulls and portions of the stabilizing columns to a distance of approximately half the effective height of the stabilizing columns which is slightly greater than maximum anticipated wave height, to maintain the vessel in a high draft floating condition with the platform elevated above the waterline. The columns stabilize the vessel in the high draft condition about roll and pitch axes. The working platform mounts either a drilling rig or a heavy duty crane or like operational equipment along the centerline of the vessel.
    Type: Grant
    Filed: October 15, 1976
    Date of Patent: September 4, 1979
    Assignee: Santa Fe International Corporation
    Inventor: Samuel H. Lloyd, III
  • Patent number: 4165571
    Abstract: The sea sled includes a pair of pontoons mounting depending rollers for straddling a pipeline disposed on the sea bottom. Water jets fluidize the sea bottom to form a trench in which the pipeline settles. The slurry formed by the water jets is removed from the trench by the eductor system which includes a pair of conduits each having a suction inlet at its lower end for location within the trench, a discharge at its upper end, a pair of pump nozzles each having an inlet external to the associated conduit and an outlet within the conduit directed toward the corresponding discharge, and a pair of primary nozzles respectively spaced from the inlet ends of the pump nozzles. A high pressure, low volume, fluid is pumped from the surface through the jet nozzles. The fluid emanating from the jet nozzles entrains ambient fluid and delivers low pressure, high volume, fluid through the respective pump nozzles to their corresponding discharges.
    Type: Grant
    Filed: December 30, 1976
    Date of Patent: August 28, 1979
    Assignee: Santa Fe International Corporation
    Inventors: Nuke M. Chang, Elmer R. Remkes
  • Patent number: 4165826
    Abstract: A holster and a belt for carrying a handgun where the holster is releasably secured to the belt for locating the handgun within trousers to maintain the handgun sufficiently hidden until exposed for use. The holster has a pocket member for receiving the handgun and a flexible portion which connects the holster to the belt. This flexible portion is of a length which locates the entire handgun where it is carried by the pocket portion of the holster below the belt such that it will be normally hidden from view. To expose the handgun for operation, the operator can simply press the holster, upwardly exposing at least a grip of the handgun for grasping by the user.
    Type: Grant
    Filed: March 15, 1978
    Date of Patent: August 28, 1979
    Assignee: Bangor Punta Corporation
    Inventor: Quentin J. Chica
  • Patent number: 4165672
    Abstract: This invention relates to a connector plate for joining wooden members comprising a planar metal plate having at least one pair of teeth formed by being struck from the plate so as to form a single opening therebetween with the teeth extending in a direction that is approximately perpendicularly and with the width of one of the teeth at its root being greater than the width of the other tooth at its root, and the length of such one tooth being greater than the length of the other tooth.
    Type: Grant
    Filed: December 30, 1977
    Date of Patent: August 28, 1979
    Assignee: Automated Building Components, Inc.
    Inventors: John C. Jureit, Benjamin H. Kushner
  • Patent number: 4165656
    Abstract: A multi-mode indexer having a gear wheel rotatably mounted on a base; a drive bracket assembly is rotatably mounted coaxially with the wheel shaft for reciprocal movement relative to the shaft. A first pair of oppositely disposed pawls are mounted to the drive brackets to engage and drive the gear wheel during the drive stroke. (One pawl driving while the other prevents overtravel). A second pair of oppositely disposed pawls are mounted to the base to provide a positive stop action against further rotation of the gear wheel at the end of each drive cycle and to lock the gear wheel in position during recovery of the drive bracket so that the gear wheel is at all times either locked in a stationary position or positively locked to the motion of the drive bracket. Cam members are rotatably mounted on the gear wheel shaft to control the action of selected pawls and thus control the CW or CCW indexing of the gear wheel as a function of the position of each cam member.
    Type: Grant
    Filed: July 22, 1977
    Date of Patent: August 28, 1979
    Assignee: MRC Corporation
    Inventor: Edward T. Rude
  • Patent number: 4165702
    Abstract: The derrick barge comprises a pair of laterally spaced elongated hulls having a plurality of upstanding columns spaced therealong supporting a working platform and a heavy duty derrick or crane in spaced relation above the hulls. The hulls bouyantly support the vessel including its deck load in the floating condition with the hulls having freeboard. The hulls have ballast compartments to submerge the hulls and portions of the stabilizing columns to a distance of approximately one-half the effective height of the stabilizing columns to maintain the vessel in a semisubmerged floating condition with the platform and derrick elevated above the waterline. However, the vessel also may be ballasted or deballasted to submerge or emerge to a greater or lesser extent from the semisubmerged condition such that the distance between the mean water surface and either the underside of the deck or top side of the hull is not less than 0.75 of the mean wave height.
    Type: Grant
    Filed: February 4, 1977
    Date of Patent: August 28, 1979
    Assignee: Santa Fe International Corporation
    Inventors: Samuel H. Lloyd, III, Yoram Goren
  • Patent number: 4164379
    Abstract: An offshore pipe laying system and method employs a remotely controllable submersible to track along the pipe line as laid on the sea bed. A sonic location device on the submersible enables the position of the touch down point of the pipe being laid to be determined. The deviation of this position from the intended track of the pipeline is computed and the pipe laying vessel is controlled to reduce this deviation.
    Type: Grant
    Filed: November 14, 1977
    Date of Patent: August 14, 1979
    Inventor: Lee R. Denman
  • Patent number: 4162574
    Abstract: A cutter for cutting facial hair in the vicinity of the nose and ears employing a body portion having a cutting end with teeth upstanding therefrom and cutting means cooperating with the teeth to cut the hair which extends in between the teeth. The cutting means includes a coil rotatably carried within the housing which is rotated by the user when the cutter is placed in the vicinity of the nostril and ears to effect the cuttings of the hair lying in between the teeth.
    Type: Grant
    Filed: February 27, 1978
    Date of Patent: July 31, 1979
    Inventor: Mack S. Johnston
  • Patent number: 4162682
    Abstract: A sectionalized, pivotal wall for an enclosure is described. The wall consists of three horizontally extending sections supported by a frame. In a closed position, the three sections are contained in a common vertical plane. The upper section is pivotally mounted, about its upper horizontal edge, on a supporting frame, and drive means carried by the frame is provided for outward pivotal movement thereof, selectively, to an angle of up to about 90.degree. to the vertical. The intermediate and lower sections are hingedly interconnected at the lower and upper edges, respectively, and are also supported at the ends thereof by the frame. Retaining means are provided on both the intermediate and lower sections for retaining said sections in a closed position, or individually, in an open position wherein one section is rotated outwardly about the hinge, 180.degree. to overlie the other section. The wall is preferred for use in constructing hog raising enclosures.
    Type: Grant
    Filed: January 25, 1978
    Date of Patent: July 31, 1979
    Inventors: Wayne K. Miller, deceased, by Sharon Miller, executrix
  • Patent number: 4161868
    Abstract: A refrigerator case for supporting items for display having a front wall access to expose a well portion of the case for loading and unloading the items for display. More specifically, the refrigerator case includes a front panel hingedly secured to a front wall of the case. The panel pivots from a closed position where access is not available through the front wall to an open position where the well portion of the case is exposed through the front wall for loading and unloading items. When in the open position the inner surface of the panel is coplanar with the bottom surface of the well portion. The panel is supported in the open position by flexible cable connected to struts in the front wall. In this manner, baskets containing the items for display may be slid over the inner surface of the panel and into the well portion.
    Type: Grant
    Filed: December 21, 1977
    Date of Patent: July 24, 1979
    Assignee: Tyler Refrigeration Corp.
    Inventors: Thomas E. Kennedy, Thomas H. Thompson
  • Patent number: 4161876
    Abstract: The mass properties measurement apparatus of this invention includes a pair of opposed bearing assemblies, each comprising a fixed bearing and a movable journal, and a radially rigid connection between the movable journals located on an axis with a single degree of freedom, which is rotation. A test object support table is fixed to one journal for rotational movement therewith, the plane of the surface of the support table being perpendicular to the rotational axis. A torsion wire coincident with the rotational axis is fixed at one end to the one journal for rotation with the support table and is fixed at its other end against rotation with the support table, thereby creating a torsional pendulum which permits oscillatory movement of the support table. Means are provided for measuring successive oscillation periods of the support table for determining the center of gravity and principal axis moments of inertia of a test object on the support table. Finally, a fail-safe caging mechanism is provided.
    Type: Grant
    Filed: March 17, 1978
    Date of Patent: July 24, 1979
    Assignee: MRC Corporation
    Inventor: David A. Carpenter
  • Patent number: 4161849
    Abstract: Apparatus for facilitating the loading and unloading of workpieces to be machined on a machine tool having a horizontal-axis headstock and at least one rotary or pendular arm designed to transport the workpieces, without changing their orientation, from a supply location to a machining station. The apparatus itself comprises a workpiece-holder pivoting about a vertical axis in synchronization with the movements of the rotary or pendular arm of the machine tool in such a way as to cause a workpiece support first to face toward the side of the machine tool manned by the operator, to facilitate loading of the workpiece, then to face in the direction of the longitudinal axis of the machine tool so that the workpiece may be correctly picked up by the rotary or pendular arm.
    Type: Grant
    Filed: December 21, 1977
    Date of Patent: July 24, 1979
    Assignee: Voumard Machines Co.
    Inventors: Hugues Voumard, Roger Sauvain
  • Patent number: 4161922
    Abstract: An anchor caddy useful in raising an anchor by translating the force exerted on the anchor line by movement of the boat to a vertical force on the anchor is disclosed. The device can also function having the anchor on a few feet of line extending therefrom, as a sea anchor. The anchor caddy consists of a float adapted to support the anchor and caddy. A pulley and housing therefore are attached to the float and movable deflector plates are pivotally mounted at ends thereof on either side of the pulley housing. The anchor line extends from the anchor, over the pulley, through a releaseable, one way dogging mechanism, mounted within the housing, to the boat. The dogging mechanism, when engaged, will permit the line to pass over the pulley only in the direction of the boat. Force exerted on the line causes the deflector plates to pivot outwardly to about 45.degree. angles with the pulley.
    Type: Grant
    Filed: March 1, 1978
    Date of Patent: July 24, 1979
    Assignee: Fish-N-Mate Ltd.
    Inventor: Francis Fogg