Patents Issued in April 12, 1994
  • Patent number: 5301497
    Abstract: A device for conveying full and empty bobbins between multi-position textile machines of different finishing stages is comprised of an endless conveying rail and an endless, driven conveying element. The endless conveying rail is common to all of the multi-position textile machines of different finishing stages, whereby at least two multi-position textile machines are connected by the endless conveying rail. The conveying element is connected to the endless conveying rail and comprises carriers for conveying the full and empty bobbins, the carriers being movable along the conveying rail.
    Type: Grant
    Filed: July 1, 1992
    Date of Patent: April 12, 1994
    Assignee: Palitex Project-Company GmbH
    Inventor: Wolfgang Leupers
  • Patent number: 5301498
    Abstract: The invention is a unitary component that may be substituted intermittently for portions of a jewelry rope chain. The unitary component has connecting means that promotes the integration of the component with the conventional rope chain by receiving onto the component the individual links of the rope chain in their ordinary sequence and position as those links are sequentially and positionally comprised on a conventional rope chain. The use of the component with conventional rope chain segments results in savings of precious metal and labor costs while retaining many of the flexibility and aesthetic advantages of the conventional rope chain. The preferred embodiment of the rope chain is spiral in shape but may take on various other configurations.
    Type: Grant
    Filed: June 17, 1992
    Date of Patent: April 12, 1994
    Inventors: Meang Chia, Cheo Chia
  • Patent number: 5301499
    Abstract: A system and method for anticipating and controlling overspeed in a combined cycle turbine of the type having a gas turbine with a fuel flow control valve and a steam turbine with at least one steam control valve both disposed on a single shaft and having a heat recovery steam generator heated by said gas turbine and connected to supply steam to the steam control valve, the combined cycle turbine having a unified control system and driving a load. Below a preselected shaft speed the gas turbine fuel command signal controls power. Above the preselected shaft speed the steam turbine speed signal also controls power.
    Type: Grant
    Filed: June 28, 1990
    Date of Patent: April 12, 1994
    Assignee: General Electric Company
    Inventors: Jens Kure-Jensen, William I. Rowen, James H. Moore
  • Patent number: 5301500
    Abstract: An industrial gas turbine engine includes in serial flow relationship a booster compressor, core engine, power turbine, and flow channel, with the power turbine having a first shaft, joined to the booster compressor, and an output shaft, and the flow channel having an outlet. Means for selectively varying flow area of the channel outlet are provided for controlling stall margin of the booster compressor in an exemplary embodiment of the engine and method of operation. The flow area varying means is effective for providing a minimum area of the channel outlet for controlling booster compressor stall margin at least at a synchronous speed associated with powering an electrical generator. In one embodiment, the flow area varying means effects a minimum horsepower from the output shaft for allowing lock-on and lock-off of the electrical generator at synchronous speed.
    Type: Grant
    Filed: July 9, 1990
    Date of Patent: April 12, 1994
    Assignee: General Electric Company
    Inventor: William R. Hines
  • Patent number: 5301501
    Abstract: A device for determining a deterioration of a catalytic converter for an engine equipped with a catalytic converter disposed in the exhaust passage and upstream and downstream air-fuel ratio sensors disposed in the exhaust passage upstream and downstream of the catalytic converter, respectively, wherein the device calculates the lengths of the output response curves of the upstream and downstream air-fuel ratio sensors LVOM and LVOS, respectively when the engine air-fuel ratio is feedback controlled, then the device determines whether or not the catalyst is deteriorated in accordance with the magnitude of the ratio LVOS/LVOM.
    Type: Grant
    Filed: October 6, 1992
    Date of Patent: April 12, 1994
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yasuhiro Shimizu, Nobuyuki Kobayashi
  • Patent number: 5301502
    Abstract: An after-burner system comprises an exhaust passage of an engine, a catalyzer to purify Hydrocarbon and located into the exhaust passage, a temperature sensor located in the catalyzer, a spark gap located in the exhaust passage at an upper stream side of the catalyzer, an ignition plug used for an ignition, and a central controller having an igniting controller controlling an ignition at the ignition plug and an after-burner controller controlling an electric discharge at the spark gap, wherein while the temperature sensor outputs a logical HIGH signal, the electric discharge is generated at the spark gap.
    Type: Grant
    Filed: August 31, 1993
    Date of Patent: April 12, 1994
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Nobuyuki Oota, Yasutoshi Yamada, Motonobu Akaki, Souichi Matsushita
  • Patent number: 5301503
    Abstract: A vehicle internal combustion engine exhaust system featuring two different exhaust routes to which the exhaust gas is directed selectively by an on-off device; the system also comprising a device for comparing parameters, consisting in engine speed, the opening angle of the throttle, and the vacuum inside the intake manifold and/or engine load, with respective predetermined values, for opening the on-off device upon the above parameters reaching the aforementioned predetermined values, and so selectively enabling the exhaust gas to flow along both the exhaust routes.
    Type: Grant
    Filed: July 24, 1992
    Date of Patent: April 12, 1994
    Assignee: Ferrari S.p.A.
    Inventor: Paolo Martinelli
  • Patent number: 5301504
    Abstract: A combination valve assembly, particularly for a secondary air blower in internal combustion engines with controlled three-way catalyzer, the combination valve assembly comprises a valve housing having a valve inlet and a valve outlet, a pneumatically actuated valve arranged in the valve housing and having a valve member for locking and releasing a flow path between the valve inlet and the valve outlet, a return valve arranged in the housing downstream of the by-pass valve as considered in a flow direction and having a closing member formed as a leaf spring, a valve plate provided with openings and a stroke catcher limiting an opening stroke arranged so that the leaf spring located between the valve plate and the stroke catcher, a valve closing spring loading the valve member of the valve in a valve closing direction while a differential pressure between a valve inlet pressure and a surrounding pressure loads the valve member of the valve in a valve opening direction.
    Type: Grant
    Filed: February 5, 1993
    Date of Patent: April 12, 1994
    Assignee: Robert Bosch GmbH
    Inventors: Johannes-Gerhard Bertling, Claudius Muschelknautz
  • Patent number: 5301505
    Abstract: A fail safe hydraulic system which includes a pressurized fluid storage which is capable of delivering fluid to the actuator to return it to its inoperative position should the actuator system suffer a loss of power and a apparatus for signaling a controller when the pressurized fluid storage has been charged with fluid, wherein fluid from the reservoir cannot be delivered to the actuator until the pressurized fluid storage has been charged with fluid.
    Type: Grant
    Filed: December 4, 1992
    Date of Patent: April 12, 1994
    Inventor: John J. Wright
  • Patent number: 5301506
    Abstract: Vuilleumier type heat pumps and other thermal regenerative devices of the same type are improved by the provision of agitation and circulation of the working fluid within the working spaces for greater efficiency of heat exchange to/from these spaces. The circulation may be by means of fans, with electric motors, jet circulators, controlled direct exit of the working fluid from displacers, rotor blades located on a shaft operated from outside the device and other suitable means. The device may be single- or multi-unit. It may provide power to drive itself and/or for other uses.
    Type: Grant
    Filed: July 22, 1992
    Date of Patent: April 12, 1994
    Inventor: Tom K. Pettingill
  • Patent number: 5301507
    Abstract: This invention relates to a cryogenless superconducting magnet system of the type that is attached to a utility grid at end-user site and is used to store electrical energy until such time that an electrical disruption occurs in the grid. Structures of this type, generally, allow the stored electrical energy to be released in such a manner that the disruption in the utility grid is negated before it reaches critical loads.
    Type: Grant
    Filed: August 3, 1992
    Date of Patent: April 12, 1994
    Assignee: General Electric Company
    Inventors: Evangelos T. Laskaris, Ahmed K. Kalafala
  • Patent number: 5301508
    Abstract: A container (20) includes a base surface (25) having walls (21, 22, 23 and 24) extending therefrom which together form an opening for the container (20). A door (26) is attached to one wall (24) by a hinge (27) to close the opening. A thermoelectric power module (43) is removably mounted in a recess (66) formed in one wall (21) and selectively heats and cools the interior of the container (20). The container (20) may thus be selectively positioned on either the base surface (25) or on one of two walls (22, 23). A power cord (57) is attached to the module (43) and carries a plug (58) so that the module (43) may be connected to a source of electric power. A switch (61) on the plug (58) directs the module (43) to selectively cool or heat the interior of the container (20). The cord (57) may be routed in channels (70, 72, 73, 74) formed in the base surface (25) from module (43) to any of the walls (22, 23, 24) and may be stored in a recess (77) formed in the base surface (25) and wall (24).
    Type: Grant
    Filed: August 14, 1992
    Date of Patent: April 12, 1994
    Assignee: Rubbermaid Incorporated
    Inventors: W. Henry Kahl, James M. Kerner, James A. Schillinger, Neil R. Taylor
  • Patent number: 5301509
    Abstract: There is provided a method and apparatus for practicing carbon dioxide particle blasting utilizing dense carbon dioxide pellets which have been formed by converting the solid carbon dioxide into liquid, flowing that liquid within a plurality of die openings, and transforming the liquid back into the solid phase while still within the die opening. This method includes the formation of a carbon dioxide cake within a snow barrel, urging the carbon dioxide cake against an upstream surface of a die plate having a plurality of die openings with such pressure such that the carbon dioxide becomes liquified within or adjacent the entrance of the die opening due to the pressure, responding as a super viscous liquid, and flowing within a portion of the respective die openings as a liquid. Along the length of the die openings, the liquid changes phase back to the solid state, while the die openings maintain compression (accompanying the back pressure) on the CO.sub.2 to create pellets having a high density.
    Type: Grant
    Filed: July 8, 1992
    Date of Patent: April 12, 1994
    Assignee: Cold Jet, Inc.
    Inventors: Daniel L. Lloyd, Frederick C. Young
  • Patent number: 5301510
    Abstract: A self-powered, mobile maintenance apparatus for continuously supplying slush hydrogen as a powering fuel to an aerospace vehicle prior to take-off including a first apparatus for obtaining liquid hydrogen from the vehicle, a second apparatus for generating slush hydrogen, a third apparatus for delivering the liquid hydrogen obtained from the vehicle to the second apparatus for generating slush hydrogen so that the liquid hydrogen can be converted to slush hydrogen, pump apparatus communicating with the second apparatus generating slush hydrogen for developing a vacuum in a region of the second apparatus for generating slush hydrogen so that a solid hydrogen fraction is produced, and apparatus for delivering the slush hydrogen mixture to the aerospace vehicle to be used as the powering fuel.
    Type: Grant
    Filed: September 25, 1992
    Date of Patent: April 12, 1994
    Assignee: Rockwell International Corporation
    Inventor: Sidney P. Glasser
  • Patent number: 5301511
    Abstract: In a cryopump a frost concentrating device is affixed to a condensing cryopanel and provides surfaces for condensing gases which are cryopumped through an opening in the vacuum vessel. The surfaces of the frost concentrator extend towards the opening in the vacuum vessel and thus limit the amount of gases which condense on the surfaces of the condensing cryopanel facing the opening. The result is that the gap between the radiation shield and the condensing cryopanel does not become significantly narrowed by condensing gases, particularly in the area closest to the opening through which gases are cryopumped. This allows other gases to pass easily through the gap and condense on surfaces of the condensing cryopanel further away from the opening of the cryopump or to be adsorbed by an adsorbent material shielded by the condensing cryopanel.
    Type: Grant
    Filed: June 12, 1992
    Date of Patent: April 12, 1994
    Assignee: Helix Technology Corporation
    Inventors: Allen J. Bartlett, Charles A. Stochl, Anthony M. Guerra, Dale A. Dopson, Paul Meroski, Thomas F. Stevens
  • Patent number: 5301512
    Abstract: A method and apparatus for continuously making snow at all times of the year comprises the creation of countless ice crystals from a mist in a controlled environment. The mist may have a ice crystal nucleus added to it to facilitate the development of the ice crystal at higher temperatures. The ice crystals are directed into an ultrasonic field generated by an transducer where the fall rate of the crystals levitated. While the crystals are within the ultrasonic field, the crystals grow into snowflakes as a result of collisions with other crystals. The snowflakes eventually fall out of the ultrasonic field as snow having a more natural appearance than more conventional snow-making techniques.
    Type: Grant
    Filed: September 12, 1991
    Date of Patent: April 12, 1994
    Inventor: Yasuo Yamamoto
  • Patent number: 5301513
    Abstract: System and process are disclosed for the monitoring of certain parameters for the purpose of exercising supervisory control over a number of discrete chiller units each having their individual dedicated controls. The supervisory control is accomplished by imposing limits on the amount of compression that can be demanded by the individual dedicated control units. These limits are selectively changed when certain parameters pertaining to the collective chilling capacity of all of the active chiller units exceed or fall below acceptable levels.
    Type: Grant
    Filed: May 7, 1993
    Date of Patent: April 12, 1994
    Assignee: Carrier Corporation
    Inventors: Paul J. Duff, Keith G. Michaelsen
  • Patent number: 5301514
    Abstract: Low refrigerant charge in a refrigeration system is detected by monitoring the oscillation of the thermal expansion valve. This monitoring is accomplished with a sensor which senses the oscillation of the expansion valve and produces a signal indicative of the valve oscillation. The sensor signal is fed to a monitoring controller which produces a low charge signal whenever the amplitude of valve oscillation falls below a predetermined level, thus indicating low charge conditions. The sensor is preferably a temperature sensor situated at either the outlet or the inlet of the evaporator. The system further comprises a validity evaluation controller for determining when valve oscillation is a valid indication of low charge. The validity evaluation controller analyzes a number of system operating characteristics which affect valve oscillation.
    Type: Grant
    Filed: December 2, 1992
    Date of Patent: April 12, 1994
    Assignee: General Electric Company
    Inventor: Warren F. Bessler
  • Patent number: 5301515
    Abstract: An air conditioning apparatus suitable for an electric car without a hot water source, while preventing the windshield from fogging up when switching from a cooling or dehumidifying operation to a heating operation. Upon the commencement of a heating operation following the end of a preceding cooling or dehumidifying operation lasting for a period longer than a predetermined value, a switching damper 104 is forced to move to the outside air inlet position 104A, when it is determined that a predetermined first time has not elapsed from the end of the last cooling or dehumidifying operation, and a predetermined second time has not elapsed from the commencement of the first heating operation following the end of the last cooling or dehumidifying operation.
    Type: Grant
    Filed: January 29, 1993
    Date of Patent: April 12, 1994
    Assignee: Nippondenso Co., Ltd.
    Inventors: Kunio Iritani, Akira Isaji, Nobunao Suzuki
  • Patent number: 5301516
    Abstract: An improved potable water collection apparatus contained within a housing, for the collection of potable water from a dynamic airflow extending between inlet and outlet ports. A compressor is mounted within the housing to circulate a refrigerant fluid in a closed loop circulation system between the compressor, a condenser coil and a cooling coil. The condenser coil and the cooling coil are mounted in the dynamic airflow extending between the inlet and outlet ports. A water collection pan is located beneath the cooling coils to collect condensation which forms as water droplets on the outer surface of the cooling coils, and directs the collected water droplets into a suitable water collection container. A water filter is disposed between the collection pan and the container. A liquid level sensor stops the operation of the compressor when the water in the collection container reaches a desired level.
    Type: Grant
    Filed: February 11, 1993
    Date of Patent: April 12, 1994
    Inventor: Forrest Poindexter
  • Patent number: 5301517
    Abstract: A merchandiser for merchandising refrigerated food products comprised as a support structure having two ends, refrigerated merchandising shelves spanning between the ends of the support structure, and a refrigerator for refrigerating product located on the refrigerated merchandising shelves. Each shelf is individually supplied with refrigerated air from the refrigerator. The merchandiser is placed adjacent checkout aisle with one end of the merchandiser abutting an end of the checkout counter, and preferably the express lane checkout counter. Refrigerated food products are thereby accessible and removable from the refrigerated merchandising shelves of the merchandiser from either side of the merchandiser as customers pass down the aisles to the express lane checkout stations.
    Type: Grant
    Filed: July 16, 1993
    Date of Patent: April 12, 1994
    Assignee: L&P Property Management Company
    Inventor: Rafael Bustos
  • Patent number: 5301518
    Abstract: A self-contained air conditioner unit comprises an enclosure including a first and second intake apertures positioned to communicate with outside ambient air and first, second, and third outlet apertures positioned to communicate with a habitable space in which the air conditioner is placed. A water reservoir is disposed at the bottom of the enclosure. A two-section heat exchanger is disposed in the cabinet over the water reservoir, each section comprising a plurality of vertically disposed, alternating wet air channels and dry air channels defined by substantially parallel opposing heat-transfer partitions. The first-section dry-air channels communicate with a pre-mixing chamber at intake ends thereof and an air-distributing chamber at outlet ends thereof. Each first-section wet channel communicates with the distributing chamber at intake ends thereof and the second outlet aperture at outlet ends thereof.
    Type: Grant
    Filed: January 26, 1993
    Date of Patent: April 12, 1994
    Assignee: Acma Limited
    Inventors: Victor A. Morozov, deceased, Serguei P. Kanachine, Iouri I. Krasnochtchekov, Alexandre I. Makienko, Valentine A. Matveev, Valeri G. Khriachtchey, Poi-Sik Tan
  • Patent number: 5301519
    Abstract: This invention relates to a food and beverage cooler for use in conjunction with a golf bag. The cooler is easily attached to and detached from a standard golf bag. Additionally, the cooler is equipped with a cooling medium which allows for uniform cooling throughout the interior of the golf bag cooler.
    Type: Grant
    Filed: November 25, 1992
    Date of Patent: April 12, 1994
    Inventor: David J. Howorka
  • Patent number: 5301520
    Abstract: There is used a refrigerant which is lower in a saturated water concentration in gas phase than in liquid phase, such as, for example, Freon-134a or Freon-22. In a body block 46 of a box-shaped expansion valve there are formed by-passes 77, 81 and 86 for by-passing a portion of the refrigerant evaporated in an evaporator 41. Halfway in the by-passes 77, 81 and 86 a cooling cylinder 73 is disposed for cooling the refrigerant present in those by-passes, and further a filter 83 is disposed for collecting the water contained in the refrigerant. In addition, a water permeating membrane 88 is disposed in a water discharge passage 79 formed in the body block 46.
    Type: Grant
    Filed: April 14, 1992
    Date of Patent: April 12, 1994
    Assignee: Nippondenso Co., Ltd.
    Inventors: Keiichi Kitamura, Shin Honda, Hisayoshi Sakakibara, Masashi Honda
  • Patent number: 5301521
    Abstract: An apparatus for continuous fabric decatizing, comprising a cylindrical drum, the outer lateral surface of which is covered with a sleeve of textile material about which the fabric is fed, the cylindrical drum and the sleeve being at least partially covered and embraced externally by an endless under-piece of textile material arranged so that at least one portion of the under-piece maintains the fabric in contact with the sleeve, the rotary drum being perforated and supported on a fixed coaxial inner cylinder having a diameter less than the drum and being maintained spaced therefrom by radial wall extensions which are positioned within the portion of the lateral surface of the drum in which the fabric is maintained in contact with the sleeve, and are connected together to define a chamber containing an atmosphere of steam under pressure fed from the outside of the fixed cylinder, and a subsequent forced suction treatment chamber.
    Type: Grant
    Filed: September 18, 1992
    Date of Patent: April 12, 1994
    Assignee: Sperotto Rimar S.p.A.
    Inventor: Franco Bertoldo
  • Patent number: 5301522
    Abstract: An abnormal vibration detecting device for detecting abnormal vibration of a rotational tub of a washing machine includes first and second abnormal vibration detectors. The first abnormal vibration detector includes a detecting lever rotatively moved where it collides with the rotational tub when it vibrates transversely, and a detection switch responsive to the rotative movement of the detecting lever. The second abnormal vibration detector includes a rotational speed detecting section detecting the rotational speed of a motor driving the rotational tub and a comparator section comparing a speed signal detected by the rotational speed detecting section with a reference speed signal determined based on the rise characteristic of rotation of the rotational tub appearing in the state that the rotational tub is in the condition of slight abnormal vibration.
    Type: Grant
    Filed: July 20, 1993
    Date of Patent: April 12, 1994
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tokihiko Ikemizu, Katsuharu Matsuo, Masahiro Imai
  • Patent number: 5301523
    Abstract: A fabric washing machine includes a container to receive fabrics and fluid to wash the fabrics. A switched reluctance motor is operatively connected to oscillate and rotate the container. A control operates the machine by providing commutation signals to the motor to energize the stator phases in a predetermined sequence as corresponding rotor phases approach the stator phase being energized. To stop the machine the control repeatedly senses the instantaneous alignment of the stator and rotor phases and supplies commutation signals to the motor to energize the stator phases in the same sequence but as corresponding rotor phases have become aligned with the stator phase being energized.
    Type: Grant
    Filed: August 27, 1992
    Date of Patent: April 12, 1994
    Assignee: General Electric Company
    Inventors: Thomas R. Payne, Steven A. Rice, Richard E. McKnight, Jr., William W. Wead
  • Patent number: 5301524
    Abstract: A hand repairable plunger lock key includes a hollow body in which is hand inserted or removed a pair of springs and a cartridge which tends to periodically wear out and require replacement. A cap is threaded to the body and is manually removed or attached without tools. A key operating cam has a pin which is releasably secured to a mating slot in the cartridge operating shaft which protrudes from the cap. The body and cap are resiliently displaced a distance sufficient for the slot to be engaged or disengaged with the cam pin. Once engaged, the body and cap are released to normally bias the pin to the shaft slot via springs in the key used to bias the cam against the cap.
    Type: Grant
    Filed: April 15, 1993
    Date of Patent: April 12, 1994
    Assignee: E. J. Brooks Company
    Inventors: George Georgopoulos, Richard C. Dreisbach
  • Patent number: 5301525
    Abstract: A lock, particularly a mortise lock, with bolt (9) and preferably catch (43) and a step-up lever (27) which acts on the bolt (9) and is equipped with a closure engagement opening (30) and is pivoted below the axis of rotation of the closure bit, for the closing of the bolt (9) in forward and backward direction while obtaining a lengthening of the closing stroke; in order to optimize the design, it is proposed that the path of movement of the closing engagement opening (30) extend approximately over a quarter-circle (V) of the cylindrical head (7) of a profiled-cylinder insertion opening (4).
    Type: Grant
    Filed: April 16, 1992
    Date of Patent: April 12, 1994
    Assignee: Carl Fuhr GmbH & Co.
    Inventor: Rolf Doring
  • Patent number: 5301526
    Abstract: A lock set for use with a deadbolt which includes an improved spindle mechanism is disclosed. The improved spindle mechanism permits the lock set to unlatch the deadbolt by rotating an inner knob without the need to operate a spindle-turning button.
    Type: Grant
    Filed: September 8, 1992
    Date of Patent: April 12, 1994
    Assignee: Tong-Lung Metal Industry Co. Ltd.
    Inventors: Yaw-Shin Fann, San-Yi Lin, Ming-Shyang Chiou, Rong-Faa Wu, Ching-Chuan Kuo
  • Patent number: 5301527
    Abstract: A security device for a trailer wheel to prevent unauthorized trailer movement that can be quickly and easily employed or removed. The device includes elongated wheel lug adapters and a back plate which are mounted with conventional lug nuts to the trailer wheel. A security bar and cover can be quickly engaged to the back plate and locked in place or easily removed when the trailer is ready for use by a key actuated locking mechanism.
    Type: Grant
    Filed: February 17, 1993
    Date of Patent: April 12, 1994
    Inventor: Marion F. Pollard
  • Patent number: 5301528
    Abstract: A device for non-cutting manufacturing of an annular part having external teeth includes a core tool that supports the blank from which the annular part is manufactured and is axially displaceable between two profiling rollers arranged diametrically opposite each other, and a separate rotating drive for each of the core tool and the two profiled rollers. The device further includes a computer element which controls the three rotating drives for synchronizing rotational speeds of the core tool and the two profiling rollers. The computer element also controls radial adjustment of the two rollers with their respective full-height regions with respect to the core tool by a calibration amount at the conclusion of the shaping operation.
    Type: Grant
    Filed: October 13, 1992
    Date of Patent: April 12, 1994
    Assignees: Langstein & Schemann GmbH, Herzing & Schroth GmbH & Co.
    Inventors: Gunter Hofmann, Willi Schroth, Erwin Klein
  • Patent number: 5301529
    Abstract: A close wound coil is formed by a sequence of steps including supplying a wire to be formed into a coil onto a rotating mandrel by means of a guide wheel and urging the wire against the mandrel by means of a pressure wheel so as to form a coil. The formed coil is allowed to free itself from engagement with the mandrel from a point immediately following that at which the wire is urged against the mandrel by the pressure wheel to the end of the mandrel so that the formed coil, although carried by the mandrel, is unrestrained relative to the mandrel.
    Type: Grant
    Filed: October 29, 1992
    Date of Patent: April 12, 1994
    Assignee: Zortech International Limited
    Inventors: Ali Paybarah, Joseph A. McWilliams
  • Patent number: 5301530
    Abstract: Tube bending apparatus comprising a lower support carrying a mandrel having a bending groove providing a bend axis, and an upper support mounted on the lower support for rotation about the bend axis and carrying a forming member for urging a tube between the mandrel and forming member into the bending groove on rotation of the upper support relative to the lower support. The upper support is adapted to be rotated relative to the lower support through a drive shaft arrangement extending downwardly from the lower support and coupled with a drive unit having an output coupling coaxial with the drive shaft and transverse to the axis of the drive motor of the drive unit. A stand supports the bending apparatus and drive unit relative to an underlying support surface during operation of the bending apparatus.
    Type: Grant
    Filed: July 13, 1993
    Date of Patent: April 12, 1994
    Assignee: Emerson Electric Company
    Inventors: Valere H. J. Beelen, David L. Machovina
  • Patent number: 5301531
    Abstract: A horizontal metal extrusion press has a tool cassette (13) for a tool set composed of a die (134), a die holder (32) and at least one pressure ring (36), displaceable horizontally along guide rails (10,11) transversely to the press axis between an extrusion position (P) on the press axis and a changing position (W) spaced horizontally from the press axis, and replaceable by a second cassette in the changing position. The cassette has an upwardly open U shape to receive the tool set. A locking piece (14) for retaining the tool set can move in a vertical guideway (22) in the upper guide rail (10), to an upper position above the opening of the cassette and to a lower position inside the opening for closing the opening. The cassette opening has an internal bead (29), and the die holder has a corresponding annular groove. The locking piece is guided on the beads along the sides of the cassette opening.
    Type: Grant
    Filed: August 28, 1992
    Date of Patent: April 12, 1994
    Assignee: SMS Hasenclever GmbH
    Inventor: Horst Groos
  • Patent number: 5301532
    Abstract: The instant device serves to pierce and irrigate fluid filled tubing. It consists of an upper jaw and a lower jaw mounted on locking pliers. The upper jaw consists of an upper jaw mounting plate fastened to the upper jaw of the locking pliers and a piercing pin unit, along with a replaceable hollow press fit piercing pin held within such unit which piercing pin unit is held in the upper jaw mounting plate after the unit's insertion through a metallic washer locking cushion. The device's lower jaw consists of a lower jaw tube cradle component mounting plate fastened to the lower jaw of the locking pliers and further consists of a tube cradle component with eight cylindrically shaped notches for receipt of any one of six different sizes of cylindrically shaped tubing. The tube cradle component is held to the lower jaw tube cradle component mounting plate by way of a threaded retaining shoulder bolt.
    Type: Grant
    Filed: February 8, 1993
    Date of Patent: April 12, 1994
    Inventors: Carl E. Bickmore, Larry F. Langlais
  • Patent number: 5301533
    Abstract: A workpiece engaging apparatus includes a drive having a linearly reciprocal drive member. Two pairs of arms are arranged in opposed, inverted relationship with respect to each other and are pivotally connected at one end to the drive. Each arm has a cam formed therein. The cams in each of the pairs of arms are identically constructed, but the cams in one pair are disposed in opposed, inverted relationship with respect to the cams in the opposed pair of arms. Cam follower members mounted on the linear drive member engage the cams during reciprocal movement of the drive member to pivot the pairs of arms between an open, spaced-apart position and a closed workpiece engaging position. Each of the cams includes a first arcuate shaped first end portion which smoothly merges into a substantially linear second end portion.
    Type: Grant
    Filed: July 23, 1992
    Date of Patent: April 12, 1994
    Inventor: Donald T. Jackson
  • Patent number: 5301534
    Abstract: A multiple lane ironing and doming apparatus for ironing and doming cup-shaped blanks into can bodies by pushing them through ironing dies by reciprocations of punches. The apparatus comprises: a plurality of punches vertically held and retained at their upper ends for vertical reciprocations; at least one ironing die unit arranged below and coaxially with each of said punches for ironing cup-shaped blanks into ironed can bodies; one doming unit arranged below the ironing die for doming the bottoms of the ironed can bodies into a predetermined configuration; stripping means for stripping the ironed and domed can bodies from the punches; and conveying means for discharging the stripped can bodies from below the punches.
    Type: Grant
    Filed: October 27, 1992
    Date of Patent: April 12, 1994
    Assignees: Daiwa Can Company, Shin Nippon Koki Co., Ltd.
    Inventors: Yoshimi Nishikawa, Keiji Murozuka, Takaji Miyazaki
  • Patent number: 5301535
    Abstract: An arrangement for changing the lever ratio of a two-armed rocker lever, particularly for the transfer movements in a press. The rocker lever is pivotally connected in a lever arm and the starting movement is capable of being tapped by another lever arm. This arrangement includes a frame, a slide guide for the rocking bearing of the rocker lever, a control device, a rotation transmission device and a nut-spindle connection for the sliding movement of the slide guide relative to the rocker lever. The rocker lever, by means of the slide guide, is disposed in a pivot bearing of a support. The support is slidably guided in the frame. The support includes the nut of the nut-spindle connection for interacting with the spindle. The control device, rotation transmission device and the spindle are arranged in the frame, and a device for fixing the position of the pivot bearing in the rocker lever is connected with the rocker lever in an operatively connected manner.
    Type: Grant
    Filed: May 22, 1992
    Date of Patent: April 12, 1994
    Assignee: L. Schuler Pressen GmbH
    Inventor: Karl Thudium
  • Patent number: 5301536
    Abstract: The present invention is drawn to a method for measuring crude oil contained in a gas flowing in a gas line which incorporates the steps of obtaining a sample of gas from the gas line, passing the sample of gas through a selective crude oil trap, measuring the volume of the sample of gas, and measuring the volume of trapped crude oil. The selective crude oil trap includes a cooled coil and at least one cylinder filled with a fluid which is non-soluble with oil and which is preferably refrigerated. The selective crude oil trap may alternatively include a filter device which has a cylinder filled with a polymerized porous medium bound with a phenolic resin. The apparatus for carrying out the method has inlet and outlet connectors which allow the apparatus to be releasably connected to a gas flow line to obtain a sample of gas and to be disconnected and physically transported to a remote facility for completion of the testing.
    Type: Grant
    Filed: August 12, 1992
    Date of Patent: April 12, 1994
    Assignee: Intevep, S.A.
    Inventors: Pedro Ortega, Fernando Cassani, Enrique Poleo, Daniel Fernandez
  • Patent number: 5301537
    Abstract: Detection of leakages of refrigerant from compressor-evaporator-condenser circuits is carried out with an electron multiplier equipped mass spectrometer of which the evacuated detector chamber is maintained at substantially constant elevated temperature in the range about 60 to about 130.degree. C. This allows high gain settings to be employed allowing detection of very small leakage rates by direct sampling from the ambient atmosphere while distinguishing from chemically analogous halogenated hydrocarbons used as blowing agents for foamed insulation and present in substantial concentrations in the ambient atmosphere.
    Type: Grant
    Filed: May 31, 1991
    Date of Patent: April 12, 1994
    Assignee: W. C. Wood Company Limited
    Inventor: John A. Atkinson
  • Patent number: 5301538
    Abstract: Duel sensor detector tube systems are installed along the path length of a pipeline, storage tanks, or other fuel system to be monitored for leaks. One sensor detector tube system is constantly evacuated and passed through a sensor detector to test for presence of vapors or gaseous indications of large leaks. Concurrently, the other sensor detector tube system is permitted to lie dormant for a predetermined period to absorb and receive diffusion of vapors or gases from medium to small leaks that are too small to be detected by the continuous air flow system of the first tube. Periodically the flow of the two sensor detector tube systems is interchanged to evacuate the dormant tube, and it then becomes the continually aspirated system. Signal output from the sensor detectors provide data to the control alarm system which compares concentration profiles of current on-going tests with recorded profiles of prior tests, and any significant deviation is recognized as a problem, sounding an alarm.
    Type: Grant
    Filed: April 20, 1992
    Date of Patent: April 12, 1994
    Assignee: Teledyne Industries, Inc.
    Inventor: Dennis Recla
  • Patent number: 5301539
    Abstract: A process is provided for enhancing the recovery of oil in a subterranean formation. The process involves injecting a surfactant-containing foam having oil-imbibing and transporting properties. A foam having such properties is selected either by determination of the lamella number or by micro-visualization techniques.
    Type: Grant
    Filed: October 29, 1991
    Date of Patent: April 12, 1994
    Assignee: Alberta Oil Sands Technology and Research Authority
    Inventors: Laurier L. Schramm, Conrad Ayasse, Karin Mannhardt, Jaromir Novosad
  • Patent number: 5301540
    Abstract: A probe for measuring the viscosity of small quantities of liquids is described. The probe for measuring the viscosity of liquids, including a housing having a surface, a first end point, and a second end point, the housing having a first, a second, and a third segment, an electric cable clamp being fixed at the first end, a transducer with electrodes on the surface of the housing, a rod containing a surface to which is glued the electrodes, the rod having a length with a free end, nodal points are attached to the first, second, and third segments of the housing, and, a clamp attaches the rod to the nodal points.
    Type: Grant
    Filed: May 17, 1993
    Date of Patent: April 12, 1994
    Inventors: Wlodzimierz Pilacinski, Boguslaw Korecki, Leon Gradon, Ryszard Plowiec, Andrzej Kaczynski, Jacek Bodasinski, Ryszard Kurzawa
  • Patent number: 5301541
    Abstract: An apparatus and method for determining the effect of the configuration of an outer surface of an object on the drag of the object. The apparatus comprises a housing, an inner block suspended in the housing, a motor for rotating the housing, and a torquemeter. The inner block is connected to the torquemeter by a suspending rod and universal joint. The method comprises attaching a layer of material having a desired surface configuration to the inner block and to the housing, filling the housing with a fluid, and driving the motor so that the housing is rotated. The magnitude of the torque on the inner block is then measured by the torquemeter. The rate of rotation of the housing and the temperature of the water are monitored.
    Type: Grant
    Filed: June 19, 1992
    Date of Patent: April 12, 1994
    Inventors: Daniel D. Joseph, Francis J. Marentic, Clement A. Nelson
  • Patent number: 5301542
    Abstract: A flexible fuel dielectric-effect sensor is disclosed wherein three capacitors, immersed in the fuel flow, are connected to define a pi filter.
    Type: Grant
    Filed: June 17, 1993
    Date of Patent: April 12, 1994
    Assignee: Ford Motor Company
    Inventors: Allen H. Meitzler, George S. Saloka
  • Patent number: 5301543
    Abstract: A moisture monitor for determining the amount of moisture in liquids which may include direct installation into a non-conductive liquid flow line or, a detection chamber having a continuous flow of contaminated non-conductive liquid therethrough, and a probe inserted in the detection chamber including means for determining both actual water vapor pressure and saturation vapor pressure of water at the temperature of the liquid. An analyzer monitor remote from the probe is connected thereto by cable for converting the information received by the probe into an analysis of the moisture content of the liquid. Analyzer may be a separate control box or incorporated into remote equipment panel.
    Type: Grant
    Filed: December 4, 1992
    Date of Patent: April 12, 1994
    Assignee: Adfiltech Corporation
    Inventor: Ralph Reichert
  • Patent number: 5301544
    Abstract: The present invention is an apparatus for and method of determining the three-axis center of gravity of objects. The apparatus of the present invention has a conveyor assembly that receives a package from an upstream conveyor path. After being received, the package is decelerated in a controlled manner to a complete stop. Package motion is then resumed to propel the package off the apparatus onto the downstream conveyor path. During both the deceleration and stop periods, signals are generated by load cells supporting the conveyor assembly. These generated signals are representative of the load applied by the package at the load cells. The three components of the center of gravity of the package are calculated from these generated signals.
    Type: Grant
    Filed: June 8, 1992
    Date of Patent: April 12, 1994
    Assignee: United Parcel Service of America, Inc.
    Inventor: Steven L. Smith
  • Patent number: 5301545
    Abstract: Irregularities in the outer surface of a commutator are identified and measured while the commutator is in the motor by removing a brush from its brush holder, and securing a jig in the brush holder. The jig has a sensor which generates electrical signals in response to movement of a profiling foot at an end of the sensor. The sensor is adjusted so that the profiling foot touches the commutator surface, and the commutator is then rotated at least one full revolution. By measuring movement of the profiling foot as the commutator turns, as observed through the output signals of the sensor, irregularities in the commutator surface can be identified and measured. The output signals of the sensor can be recorded or otherwise stored for analysis. The profiling foot is pivoted so that it rests flat against the commutator contacts, even if the brush holder is not properly aligned with the commutator.
    Type: Grant
    Filed: October 5, 1992
    Date of Patent: April 12, 1994
    Assignee: General Electric Company
    Inventors: James A. Meyer, James R. Christensen, Douglas A. Dunbar
  • Patent number: 5301546
    Abstract: In a misfire detecting device for an internal combustion engine, a crank angle detector detects the crank angle of the engine, a speed detector detects the speed of the engine from the crank angle thus detected, a load detector detects the load of the engine from the speed thus detected; and a misfire detector detects the misfire rate of the engine from the load thus detected, and outputs a misfire detection signal when the misfire rate thus detected exceeds a misfire rate determining value set according to a certain amount of load.
    Type: Grant
    Filed: February 12, 1992
    Date of Patent: April 12, 1994
    Assignee: Mitsubishi Denki K.K.
    Inventors: Masanori Inada, Akira Demizu, Akihiro Nakagawa