Patents Issued in February 14, 1995
  • Patent number: 5388434
    Abstract: A theft prevention device for use in the mounting of automotive audio equipment, such as a two-way radio to a secure structure, such as a "U" bracket or trunnion. The invention is a generally conical-shaped mounting knob that threadably attaches the audio equipment to the mounting bracket. Attached to one end of the knob enclosure is a key lock and attached to the opposite end is a threaded stud that is able to rotate about the longitudinal axis of the enclosure. In operation, the knob, in its unlocked position, is rotated clockwise until the threaded stud is securely attached to its threaded counterpart on the radio. In this position, the lock assembly rotates a cam plate so that an engaging disc engages both the knob enclosure and a stud plate allowing torque applied to the enclosure to be transferred to the threaded stud. The knob is then locked.
    Type: Grant
    Filed: July 29, 1993
    Date of Patent: February 14, 1995
    Assignee: Relm Communications, Inc.
    Inventor: Robert M. Kalis
  • Patent number: 5388435
    Abstract: To prevent the unauthorized unlocking of van doors equipped with safety rod locks, the lever of the safety rod lock is held to the door by a retainer clip. The retainer clip has an extending tongue with apertures in it that passes through the door into the van. In the van, there is a dead bolt which may be actuated by a key cylinder inserted from outside the van through the door to cause the dead bolt to enter an aperture and lock the extending tongue of the retainer and hold the retainer in place so that the lever cannot be moved to unlock the safety rod lock. A second key actuated member or solenoid actuated member is actuated to move a cam in front of the first key slot so that it cannot be unlocked until the second cam lever is moved out of the way. Thus, a sequence must be followed using two different actuating means to unlock the door or lock the door.
    Type: Grant
    Filed: January 4, 1993
    Date of Patent: February 14, 1995
    Assignee: Verdure Industries, Inc.
    Inventor: Ronald F. Bailey
  • Patent number: 5388436
    Abstract: A motorcycle disk brake lock comprises a first arm, a second arm, and a lock main body. A gap is located between the first and the second arms. A lock bolt is provided with a straight leg portion and a curved portion. The straight leg portion is disposed slidably in the first arm while the curved portion of the lock bolt extends toward the second arm and across the gap. A lock bolt fastening pin is disposed in a base portion of the lock main body such that the lock bolt fastening pin can be moved between a first position and a second position, and that the lock bolt fastening pin restrains the lock bolt when located at the first position. A lock having a lock cylinder and a lock core is disposed in the base portion of the lock main body such that the lock core of the lock is coupled with the lock bolt fastening pin, which can be caused to move to the first position from the second position when the lock core is located at a locking position.
    Type: Grant
    Filed: June 6, 1994
    Date of Patent: February 14, 1995
    Inventor: Jin-Ren Shieh
  • Patent number: 5388437
    Abstract: In a magnetic key operated lock, a slide member carries a plurality of wheels in which are mounted magnetic pins. The position of the pins forms part of a code of the lock. The wheels are caused to rotate by insertion of a code changing key, which has a code for unlocking the lock, and moving the slide member. As the slide member moves, one of the pins which is repelled by the particular code changing key abuts a stop, which thus causes the respective wheel, and so the other wheels, to rotate. By having wheels of two different diameters, the smaller wheels can be made to rotate more than once before a code is repeated. The stops are formed by pressing a tang from a stationary wall in the lock.
    Type: Grant
    Filed: May 6, 1993
    Date of Patent: February 14, 1995
    Inventor: Bruce S. Sedley
  • Patent number: 5388438
    Abstract: A disk detent cylinder lock comprising a stationary outer cylinder (1); an inner cylinder (2) which has been disposed within the outer cylinder; and a plurality of detent disks (3.sup.1, 3.sup.2, 3.sup.3, . . . ) which have been disposed to form a disk stack (4) within the inner cylinder to be turnable with the proper key of the lock from their locking positions into opening positions. The lock comprises locking members for preventing lock-picking in a lock-picking situation.
    Type: Grant
    Filed: April 30, 1993
    Date of Patent: February 14, 1995
    Inventor: Haavikko Paavo
  • Patent number: 5388439
    Abstract: A magnetic key fob formed as an enclosure member, opening at one end, providing for the insertion of a permanent magnet therein, and having a fastener that connects approximately at the midpoint of the opening into the enclosure member, for permanently retaining the magnet within the fob, and for also securing a key ring to the fob, which key ring may hold a plurality of keys or other weighted items.
    Type: Grant
    Filed: August 26, 1992
    Date of Patent: February 14, 1995
    Assignee: Mocap Incorporated
    Inventor: Joseph T. Miller
  • Patent number: 5388440
    Abstract: A method for reshaping 360.degree. sheet metal cylinders by longitudinal end loading simultaneous with gas pressure applied to the inside of the cylinder directing the metal into dies resulting in new shapes without thinning, in a clean atmosphere.
    Type: Grant
    Filed: July 21, 1993
    Date of Patent: February 14, 1995
    Inventor: Carroll W. Folmer
  • Patent number: 5388441
    Abstract: An apparatus for forming curved surgical needles is provided which includes a needle curving system for imparting an arcuate profile to sequentially presented needle blanks and a rotating system for pressing the needle blank against the curving system. The apparatus also includes needle supply and advancing systems for sequentially feeding and advancing the needle blanks to the needle curving system.
    Type: Grant
    Filed: December 29, 1992
    Date of Patent: February 14, 1995
    Assignee: United States Surgical Corporation
    Inventors: Michael W. Bogart, Richard Parente
  • Patent number: 5388442
    Abstract: A new machine for laboratory testing of lubricants and tractive/braking characteristics commonly known as adhesion has been designed. It can provide measures of lubricant performance characteristics of lubricity and durability (retentivity). Furthermore, it provides a continuous description of lubricant consumption characteristics after application of fresh lubricant. The machine uses two suitably profiled and loaded wheels robing against each other with one wheel powered and the other wheel either freely rolling or braked. The axes of the two wheels can be kept aligned or misaligned by a specified angle for testing of lubricants or adhesion. For making the machine more accurate and usable a quick engagement self-aligning compound shaft and wheels have been designed. A three point alignment base with two linear slides, spline connection and drive shaft are used for setting the null condition.
    Type: Grant
    Filed: October 13, 1992
    Date of Patent: February 14, 1995
    Assignee: Tranergy Corporation
    Inventors: Sudhir Kumar, James G. F. Cheng
  • Patent number: 5388443
    Abstract: A sensor or detector for fluid parameters is in the form of a substrate having at least two cavities and at least two sensing or detecting portions bridging respective cavities. The sensing portions include a first sensing unit which is exposed to the ambient and a second sensing unit which serves a compensating function and is in an air-tight enclosure formed by joining a cover plate with the substrate by a solid adhesive layer formed around the boundary of the second sensing unit. An adhesive tape can be attached to the cover plate to facilitate dicing and separating sensors or detectors that are initially formed on the same substrate.
    Type: Grant
    Filed: June 24, 1993
    Date of Patent: February 14, 1995
    Inventor: Junji Manaka
  • Patent number: 5388444
    Abstract: Testing apparatus and methods are described for determining required vacuum characteristics of a radon evacuation system, wherein the radon evacuation system is of a type which utilizes floor vent holes in a basement floor to evacuate radon from beneath the basement floor. The preferred embodiment comprises an elongated vacuum tube extending from a floor vent hole to a variable vacuum test source. Pressure and air velocity measurement devices are positioned to determine actual static pressure and air flow rate within the vacuum tube. To determine the minimum vacuum required at the floor vent hole, the vacuum test source is adjusted to produce the lowest vacuum which will maintain a negative pressure in nearby test holes. The corresponding static pressure and air flow rate are then noted from the measurement devices.
    Type: Grant
    Filed: October 6, 1993
    Date of Patent: February 14, 1995
    Inventor: Thomas J. Gerard
  • Patent number: 5388445
    Abstract: A time of arrival of a pressure wave front travelling through fluid in a pipeline due to an event which causes fluctuation of pressure in such fluid is determined. The characteristic related to the pressure of the fluid is measured at a given position along the pipeline. A rate of change of the fluid pressure is determined for each measured pressure value by calculating a straight line derived from a plurality of such pressure values. The slope of the current straight line is compared to a threshold derived from a plurality of slopes obtained for previous pressure values, and a signal is outputted when the slope exceeds the threshold. Such signal is indicative of the time of arrival of the pressure wave front. The time of arrival is utilized to obtain the magnitude of the event, the location on the pipeline at which the event occurred, and its time of occurrence.
    Type: Grant
    Filed: October 16, 1992
    Date of Patent: February 14, 1995
    Assignees: NKK Corporation, Digital Dynamics, Inc., H. L. Legdeen Associates
    Inventors: Gregg D. Walters, James B. Jerde
  • Patent number: 5388446
    Abstract: An apparatus for use in one-hundred percent leak testing of food containers used in conjunction with a tracer gas. The apparatus includes a shell with entrance and exit air locks to create a controlled atmosphere through which a series of containers is conveyed by a conveyor belt. The pressure in the shell is kept lower than the pressure in the containers and the atmosphere is made to flow with the containers so that a tracer gas placed in the packages before sealing them will leak more readily, but the leaked tracer gas will remain associated with the leaking package as it moves through the shell. The leaks are detected with a sniffer probe in fluid communication with a gas chromatograph. The gas chromatograph issues a signal when it detects a leak to an ejector that will eject the leaking container from the conveyor.
    Type: Grant
    Filed: October 18, 1993
    Date of Patent: February 14, 1995
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: James W. Kronberg
  • Patent number: 5388447
    Abstract: A viscosity measurement apparatus for measuring viscosity of a fluid under known pressure. A tube of known diameter and length allows the fluid to pass therethrough. A closed chamber is in fluid communication with the tube. A piston, sealably engaged with the chamber, may be moved by force of the fluid passing through the tube. A linear gauge measures the time required to move the piston. A mechanism is provided to reset the piston by forcing fluid back through the tube to empty the chamber to begin another measurement.
    Type: Grant
    Filed: November 26, 1993
    Date of Patent: February 14, 1995
    Assignee: Diagnetics, Inc.
    Inventors: James C. Fitch, Kym Bergstrom
  • Patent number: 5388448
    Abstract: An electrically conductive particle detector that includes a hollow spool or sleeve of insulating material having an open end, a sidewall and a circumferential array of elongated fluid passages that extend radially through the sidewall. A pair of internested helical conductors are mounted in corresponding helical grooves on the interior of the sleeve sidewall, with helical reaches of the conductors spaced from each other by the sleeve. Electrical circuitry is connected to the conductors for detecting impingement of a conductive particle that bridges adjacent reaches of the conductors in fluid that flows through the sleeve. A perforated strainer is carried by the sleeve spaced from the conductors for removing particles in the fluid that flows through the sleeve.
    Type: Grant
    Filed: August 12, 1993
    Date of Patent: February 14, 1995
    Assignee: Vickers, Incorporated
    Inventors: Stephen Showalter, James L. Horan
  • Patent number: 5388449
    Abstract: An osmolarity sensor continuously senses an osmolarity of a fluid. A principle of operation is based on achieving an equilibrium of a vapor pressure of a specimen solution with a vapor pressure of a standard solution. In an embodiment, the standard solution is contained in a cavity defined by a vapor-permeable membrane which is immersed in a specimen solution. The standard solution and the specimen solution are allowed to come into equilibrium by a movement of water vapor across the vapor-permeable membrane, which is permeable only to water vapor and not to any solutes or water itself. The movement of the water vapor between the standard solution and the specimen is measured by sensing a volume of water transferred between the standard solution and the specimen solution. A measurement of a volume change of the standard solution is made by sensing a change a conductivity of the standard solution.
    Type: Grant
    Filed: July 6, 1993
    Date of Patent: February 14, 1995
    Inventors: Harry H. LeVeen, Eric G. LeVeen, Robert F. LeVeen
  • Patent number: 5388450
    Abstract: Gearbox with hydrostatic motors particularly for earth-movers, including a first hydrostatic motor and a second hydrostatic motor, each of which is connected respectively to a first countershaft and to a second countershaft by virtue of respective first and second transmission elements. The first countershaft and the second countershaft respectively support a plurality of input gearwheels which can be selectively coupled to a respective countershaft by virtue of selection elements. The input gearwheels mesh with respective secondary gearwheels so as to define gear ratios. The secondary gearwheels are supported by a secondary shaft to which they can be selectively coupled by virtue of the selection elements. A first output gearwheel is keyed on the secondary shaft and meshes with a second output gearwheel which is keyed on an output shaft.
    Type: Grant
    Filed: December 6, 1993
    Date of Patent: February 14, 1995
    Assignee: Clark-Hurth Components S.p.A.
    Inventor: Fritz C. A. Hurth
  • Patent number: 5388451
    Abstract: A high voltage switching apparatus 10 is described containing an arc-quenching gas containing sulphurhexafluoride in a vessel 12 that is monitored by a gas monitoring device 20. A temperature transducer 34 is attached to the exterior of the vessel 12 to sense the temperature of the gas. A gas line 24 leads from a control panel 18 to an enclosure 22 of the device 20. The device 20 has a front display panel with a digital communication terminal 42 for connecting to a computer to load and download data to and from the device 20 relating to the density of the gas within the vessel 12. The device 20 includes a data input module 44, a control module 46, a relay module 48, a display module 50 and a DC power supply module 52 mounted in an enclosure 22. The enclosure 22 has an internal heater 56 for maintaining the temperature within the enclosure above 20.degree. C.
    Type: Grant
    Filed: July 30, 1993
    Date of Patent: February 14, 1995
    Assignee: Consolidated Electronics Inc.
    Inventors: Anders M. Stendin, William J. Seaton, David A. Gwynne, Greg A. Lloyd
  • Patent number: 5388452
    Abstract: A scanning probe microscope is provided with a piezo-ceramic tube to carry the sensitive probe at its free end to translationally move the probe in the X and Y directions. Large stationary surfaces can then be scanned by probe tip motion. The tube is also capable of movement in the Z direction so that the tip can follow the contours of the surface. Optical detection means track the motion of the probe tip and generate signals corresponding to and representative of surface contours. In one mode of operation, the signals are used in a feed back loop to keep constant the spacing between the tip and the surface, in which case the error or control signals represent the contours.
    Type: Grant
    Filed: October 15, 1993
    Date of Patent: February 14, 1995
    Assignee: Quesant Instrument Corporation
    Inventors: Robert S. Harp, David J. Ray
  • Patent number: 5388453
    Abstract: Provided is a method and apparatus for measuring evaporative vehicle emissions. In accordance with the invention, there is provided a leak-tolerant apparatus for use in cooperation with an absolute fluid pressure sensor for measuring evaporative emissions for motor vehicles in accordance with prescribed fluid-temperature profiles. The apparatus includes control means in electrical communication with fluid temperature sensor, a fluid pressure sensor and a volume compensation device for determining the quantity of fluid required to be provided to or evacuated from the volume compensation device in accordance with the ideal gas law. In operation, the control means compares the mass flow, volumetric flow, total mass or total volume with the rate or total change in temperature and pressure and corrects a flow metering device so as to allow more or less fluid into or out of the volume compensation device to achieve the desired test chamber volume compensation.
    Type: Grant
    Filed: February 26, 1993
    Date of Patent: February 14, 1995
    Assignee: Power-Tek, Inc.
    Inventors: Kenneth Ratton, James Juranitch
  • Patent number: 5388454
    Abstract: A device for detecting deterioration of a catalyst temperature sensor which detects the temperature of a three-way catalyst arranged in the exhaust pipe of an internal combustion engine, judges that the sensor has deteriorated when the difference between the actual output value from the catalyst temperature sensor and a reference value based on predetermined engine operating parameters exceeds a predetermined value while the engine is in a predetermined operating condition.
    Type: Grant
    Filed: December 8, 1993
    Date of Patent: February 14, 1995
    Assignee: Honda Giken Kogyo K.K.
    Inventors: Shigetaka Kuroda, Yoichi Iwata
  • Patent number: 5388455
    Abstract: An improved flowmeter system is described, together with circuitry, hardware, and techniques for its utilization for determining the rate of flow of fluids in conduits at a situs substantially remote from the information gathering and analysis situs. Arrangements are provided for utilization of the system in conduits, including deep water wells, having diameters as small as 2 inches, and wherein very low flowrates of liquid therein can be quite accurately measured to depths in the range of hundreds to thousands of feet.
    Type: Grant
    Filed: November 15, 1993
    Date of Patent: February 14, 1995
    Assignee: Tennessee Valley Authority
    Inventors: Jimmie W. Hamby, Hubert S. Pearson, William R. Waldrop, Donald E. Warren, Steven C. Young
  • Patent number: 5388456
    Abstract: Thermocatalytically generated gaseous hydrocarbons from gas or oil prone source rocks in subsiding sedimentary basins and those penetrating the seal of gas or oil accumulations at the surface reach the surface in geologically short times and in low concentrations. These transported hydrocarbon gases transmit information to the surface concerning hydrocarbon potential, organic facies and maturity of the generating source rock and characteristics of the gas accumulation. In the present invention, these near surface gaseous traces are analyzed according to their molecular and isotopic composition, and from that information the status of gas and oil generation is derived by analyzing the compositional shifts of the gas due to migration. The shifts in isotopic composition of methane gas during migration are quantified. Relationships of the original gas parameters are reconstructed in this way to derive information as to the geological status and potential of their source i.e. the prospectivity of the basin.
    Type: Grant
    Filed: October 14, 1993
    Date of Patent: February 14, 1995
    Inventor: Dirk Kettel
  • Patent number: 5388457
    Abstract: A thermal flow sensor according to the present invention is provided with a flow velocity probe equipped with a support member formed with an insulating wire material and a heat-sensitive resistor attached on a surface of the support member, in which the heat-sensitive resistor is formed as a film and made of a material whose resistance varies with temperature.
    Type: Grant
    Filed: January 28, 1993
    Date of Patent: February 14, 1995
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Katsuaki Yasui
  • Patent number: 5388458
    Abstract: A resonantly vibrating or tuning fork rate sensor in which a quartz beam is instrumented with electrodes in first and second regions forming respective sense and drive electrodes wherein the piezoelectric resonance affect of the quartz material between the drive electrodes is used as a tuning element for an oscillator circuit. The electrodes are driven in a balanced voltage mode and sensed in a common mode rejection differential amplifier while leads running to the electrodes along the quartz beam are placed at positions of minimal field strength for improving the signal to noise ratio of the device. The rate sensor utilizes a multi-electrode pattern in order to make such lead placement possible. The sense pattern and drive pattern may be either in one orientation with the drive electrodes proximate to the body of the quartz resonator or in a second pattern with the sense electrodes proximate to the body.
    Type: Grant
    Filed: November 24, 1992
    Date of Patent: February 14, 1995
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: Marc S. Weinberg, Anthony Petrovich
  • Patent number: 5388459
    Abstract: As acceleration sensor has an insulating substrate, a pair of signal deriving electrodes provided on one surface and an acceleration detecting element electrically connected to the pair of electrodes. The acceleration detecting element is provided with first and second piezoelectric elements, having a pair of facing end surfaces, which are directly or indirectly coupled to each other to be polarized in reverse directions. First end surfaces of the first and second piezoelectric elements are electrically connected to the pair of signal deriving electrodes respectively while other end surfaces, being opposite to the first end surfaces, of the first and second piezoelectric elements are electrically connected with each other.
    Type: Grant
    Filed: December 28, 1992
    Date of Patent: February 14, 1995
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Jiro Inoue, Muneharu Yamashita, Jun Tabota, Toshihiro Mizuno
  • Patent number: 5388460
    Abstract: A capacitive acceleration sensor is composed of a silicon plate, a glass plate and a substrate. The silicon plate has a fixed portion and a movable portion supported by the fixed portion through spring beams. The movable portion is moved in response to the change in the acceleration and is provided with a moving electrode thereon. The glass plate is provided with a fixed electrode and anodically bonded to the silicon plate so that the fixed electrode faces the moving electrode with a predetermined gap. On the glass plate, a first dummy electrode is formed at a location corresponding to the spring beams of the silicon plate. The dummy electrode has a terminal portion at one end so as to be electrically connected with the silicon plate during anodic bonding of the plates. On the substrate, a second dummy electrode is formed at a location corresponding to the movable portion of the silicon plate.
    Type: Grant
    Filed: March 18, 1992
    Date of Patent: February 14, 1995
    Assignee: Toyoda Koki Kabushiki Kaisha
    Inventors: Shizuki Sakurai, Shiro Kuwahara, Nakane Kunie, Ryota Takagi
  • Patent number: 5388461
    Abstract: An ultrasonic imaging system for performing a scan in which beamforming time delay errors due to nonuniformity in sound speed within the transmission medium are corrected employs a multiple channel transmitter and receiver. Time delay errors are measured by cross correlating the channel signal in each respective one of the receiver channels with a reference beamsum signal produced by summing all the receiver channel signals. The resulting time delay corrections are applied to corresponding channels of the transmitter and receiver to offset time delay errors in the subsequent acquisition of image data.
    Type: Grant
    Filed: January 18, 1994
    Date of Patent: February 14, 1995
    Assignee: General Electric Company
    Inventor: Kenneth W. Rigby
  • Patent number: 5388462
    Abstract: A low pressure capacitance measurement device where capacitance base members are constructed from metal and one of the base members arranged to be torqued relative to the other base member where the stress level is maintained within the elastic limits of the metal and the torque force is developed by a bellows which acts on a moment arm to torque the base member about its torque displacement axis.
    Type: Grant
    Filed: September 24, 1992
    Date of Patent: February 14, 1995
    Assignee: Panex Corporation
    Inventor: Leroy C. Delatorre
  • Patent number: 5388463
    Abstract: A hollow bolt (10) contains first and second electrical contact elements (13, 16) which are moved apart when the bolt is subjected to a predetermined tensile lead. A carrier (14) for a first of the contact elements contains an inductor (18) connected electrically between the contact elements, the condition of the contact elements is ascertained by inductive coupling of test apparatus with the inductor.
    Type: Grant
    Filed: June 28, 1993
    Date of Patent: February 14, 1995
    Assignee: Rotabolt Limited
    Inventor: Philip M. Scott
  • Patent number: 5388464
    Abstract: The device comprises a tubular body portion (1) in which are fitted first and second jaws (2, 4) for holding a specimen (3) to be tested. A compression spring (5) or pressure chamber (29), are housed within the body portion (1) and act to urge the first jaw (2) outwards whilst the second jaw (4) is secured to the body portion thereby applying stress to the specimen (3). The device is sufficiently small to enable it to be used in confined spaces, such as the underside of a vehicle or within a vehicle engine compartment, so the tests can be carried out in real-life environments. If hydraulic actuation of the pressure chamber (29) is used, varying stresses can be applied to the specimen (3) which are also dependent upon real-life movements and/or stresses.
    Type: Grant
    Filed: April 5, 1993
    Date of Patent: February 14, 1995
    Inventor: Anthony Maddison
  • Patent number: 5388465
    Abstract: In an electromagnetic flowmeter for obtaining a signal corresponding to flow rate of conductive fluid in a magnetic field, a noise detector detects a noise superimposed on the fluid, and a timing signal generator produces timing of generating an exciting current to produce the magnetic field and timing of sampling electrical potential generated in electrodes in the fluid, based on the noise detected by the noise detector.
    Type: Grant
    Filed: November 17, 1992
    Date of Patent: February 14, 1995
    Assignee: Yamatake-Honeywell Co., Ltd.
    Inventors: Hiroshi Okaniwa, Ichiro Mitsutake, Atsushi Koshimizu
  • Patent number: 5388466
    Abstract: The flow meter has in a substantially cylindrical inner housing (1) a helically designed diffuser (4), which imparts a swirl to the medium flowing through the inner housing. Downstream of the diffuser there is rotatably mounted a rotor (8), which has blades (13) extending from its rotational spindle (9) as well as a ring (14) which connects the blade ends to one another and is coaxial to the spindle. The rotor (8) is set in rotation by impingement of the blades (13) by the flowing medium. On the outer circumferential surface (15) of the ring (11) there is on a circular line a multiplicity of markings (16) arranged at equal angular intervals from one another. Through a window (18) in the inner housing (1), a light beam strikes the outer circumferential surface (15) of the ring (14), provided with the markings (16). Upon rotation of the rotor (8), the sequence of markings is transmitted by an optical-fibre cable (20) and sensed by a sensor (21), so that from the signals received the flow rate can be determined.
    Type: Grant
    Filed: January 12, 1993
    Date of Patent: February 14, 1995
    Inventor: Theodora A. Teunissen
  • Patent number: 5388467
    Abstract: An apparatus and method for testing a switch having an actuating plunger, the switch undergoing a switch event in response to the actuation of the actuating plunger includes a switch nest and clamp assembly for holding the switch at a precise and predetermined location and a motor driven plunger actuator for applying force to the plunger thereby to actuate the switch. The switch test station further includes a pressure sensor coupled to the plunger actuator which measures the force being applied to the plunger during switch actuation. An electrical sensor couples to the switch nest and measures the electrical characteristics of the switch while a microcomputer responsive to the pressure sensor and the electrical sensor determines the mechanical displacement of the actuating plunger at a switch event.
    Type: Grant
    Filed: September 9, 1992
    Date of Patent: February 14, 1995
    Assignee: Tricor Systems, Inc.
    Inventors: John Jereb, John Stark, Gerald Proszek
  • Patent number: 5388468
    Abstract: An indicator of solder wave soldering parameters includes a simulating board (10) of electrically insulating material provided with a plurality of electrical contact elements (11A, 11B . . . 18A, 18B) which are located on a first surface of the board (10) such that, when the board is passed by a soldering machine conveyor over a solder wave with the contact elements facing the wave, at least some of them will be immersed in the solder to different depths so as to form an electric contact between them, each of the electrical contact elements being associated with an electronic measuring circuit (31, 33) adapted to measure and record the specific depth and duration of the electrical contact between each such contact element and the solder wave thereby simulating the corresponding dwell time and specific depth of penetration of the solder wave into contact orifices of a real printed circuit plate.
    Type: Grant
    Filed: January 29, 1993
    Date of Patent: February 14, 1995
    Inventor: Shay Sasson
  • Patent number: 5388469
    Abstract: The vibrator system of this invention provides conversion of rotary motion to an unidirectional motion and may be used to propel watervessels. The vibrator system involves a rotating vibrator unit which bears large and small rotating eccentric weights. A gear arrangement provides synchronized rotation of the weights which results in a net unidirectional force. In a second embodiment, two vibrator units are mounted on a single frame and are rotated in synchrony.
    Type: Grant
    Filed: January 4, 1994
    Date of Patent: February 14, 1995
    Inventor: Howard M. Woltering
  • Patent number: 5388470
    Abstract: The centrifugal force drive machine for generating force in a controlled direction is provided. The machine includes a machine frame having a shaft mounted thereto for rotation about its axis. The drive mechanism is provided to rotate the shaft about its axis. At least one mass is mounted on the shaft for rotation therewith. Each mass has a center of gravity which is moveable radially with respect to the shaft between the position in which the mass is rotationally balanced about the shaft and a position in which the mass is unbalanced. A control member in an operative connection between the mass and the frame is provided to constrain radial movement of the mass between the balanced position and the unbalanced position during each revolution thereof. When a mass is in the unbalanced position, the centrifugal force generated by the rotation of the mass is transmitted to the control member, thereby generating a linear force in the controlled direction.
    Type: Grant
    Filed: June 28, 1993
    Date of Patent: February 14, 1995
    Inventor: Richard O. Marsh, Jr.
  • Patent number: 5388471
    Abstract: A thrust bearing assembly for retaining a ball screw of an actuator in a housing and driving a position sensor in a control system. The thrust bearing assembly has a cylindrical body with an annular radial projection having parallel first and second inner outer race surfaces. Gear teeth are located on the peripheral surface of the radial projection. First and second roller bearing and associated first and second outer races are located on said cylindrical body. A locating plate attached the housing urges the second outer race toward the housing to bring the second roller bearing into engagement with the second inner race and the first inner race into engagement with the first roller bearing and first outer race to fix the position of the ball screw in the housing. The ball screw is connected to receive rotary torque from a drive gear to position a translating ball nut within the housing.
    Type: Grant
    Filed: October 12, 1993
    Date of Patent: February 14, 1995
    Assignee: AlliedSignal Inc.
    Inventors: Hugo N. DeCampos, Jason G. Maalouf
  • Patent number: 5388472
    Abstract: Power shift motor vehicle gearbox with an input shaft (1), two counter-shafts (2, 3) and a central synchronizer (30). The input shaft has a gear wheel (5) in engagement with a gear wheel (6) freely rotatably mounted on one counter-shaft (2) and lockable by a friction clutch (7) to the shaft. The gear wheels form a pair for driving the counter-shaft. The input shaft also has a freely rotatably mounted gear wheel (8) which can be locked by a friction clutch (10) to the shaft. The gear wheel (8) engages a gear wheel (9) on the other counter-shaft (3) for driving the same when the clutch is engaged.
    Type: Grant
    Filed: July 2, 1993
    Date of Patent: February 14, 1995
    Assignee: AB Volvo
    Inventor: Sverker Alfredsson
  • Patent number: 5388473
    Abstract: A bearing arrangement for the drive pinion of a marine transmission or the like reduces deflections of the shaft on which the pinion is mounted. The bearing arrangement mounts the pinion in part on the shaft and in part directly on the transmission housing, thus reducing loads imposed on the shaft by the pinion. The bushing which typically supports the pinion on the drive shaft is eliminated in favor of a first bearing supporting the input end of the pinion in the housing and a second bearing supporting the output end of the pinion on the shaft. Third and fourth bearings support the output and input ends of the shaft in the housing and on the pinion, respectively. Preferably, the first, second, and third bearings comprise single taper roller bearings which permit the points at which the effective loads are imposed on the shaft to be shifted and the running clearances of which are adjusted by a single shim pack.
    Type: Grant
    Filed: October 29, 1993
    Date of Patent: February 14, 1995
    Assignee: Twin Disc Incorporated
    Inventor: James B. Black
  • Patent number: 5388474
    Abstract: A clutch drum has a drum main body made of a metallic plate which is formed into a cup shape by drawing. Spline teeth for engaging with clutch plates are formed by pressing on a periphery of the drum main body. Pulsing teeth for detecting a rotational speed are formed by pressing on the periphery of the drum main body. An apparatus for manufacturing the clutch drum has a forming die onto which the drum main body is externally set in position. The forming die has formed thereon first tooth spaces corresponding to the spline teeth and second tooth spaces corresponding to the pulsing teeth. First tooth-shaped punches are provided so as to be movable radially back forth to form by pressing the spline teeth by urging the periphery of the drum main body into the first tooth spaces.
    Type: Grant
    Filed: June 8, 1993
    Date of Patent: February 14, 1995
    Assignee: Honda Giken Kogyo Kaisha
    Inventors: Haruo Tanaka, Toshiki Takeda, Yoichi Kojima, Yoshihiro Kodama, Yorinori Kumagai
  • Patent number: 5388475
    Abstract: A ball nut for use in combination with a ball screw and a plurality of ball bearings wherein said ball nut has a metallic sleeve segment including a longitudinal opening and a plurality of equidistant arcuate grooves. A polymeric deflector segment is included, having a plurality of S-shaped return grooves spaced apart sufficiently to cooperate with the plurality of arcuate grooves of the sleeve segment for completing a plurality of bearing race circuits inside the ball nut. A polymeric ball nut body encases the sleeve segment including a longitudinal slot for receiving the deflector segment sufficiently to place the plurality of equal distant arcuate grooves into cooperation relationship with the S-shaped return grooves.
    Type: Grant
    Filed: September 15, 1993
    Date of Patent: February 14, 1995
    Assignee: Beaver Precision Products
    Inventors: Walter J. Shear, III, Theodore R. Schlenker
  • Patent number: 5388476
    Abstract: An in-line gearshift mechanism for use with a powershift transmission of an agricultural vehicle. The gearshift mechanism includes a shift lever assembly, a shifter plate and a switch plate each separated by a plurality of spacers and secured as an integral unit to a frame portion of an interior of the agricultural vehicle. The shifter plate includes a plurality of in-line detent positions defining forward upshift, forward, forward downshift, neutral, reverse downshift, reverse and reverse upshift detent positions at which the shift lever may be positioned. The shift lever includes a gear encoder plate on which a plurality of switch activating elements are positioned. As the shift lever is moved between the above-mentioned detent positions, the switch activating elements selectively actuate selected ones of a plurality of reed switches disposed on the switch plate.
    Type: Grant
    Filed: June 15, 1993
    Date of Patent: February 14, 1995
    Assignee: Agco Corporation
    Inventors: James R. Harger, David L. Murray
  • Patent number: 5388477
    Abstract: A gearshift device for electrically controlled transmissions is provided having a shifting lever pivotable in two parallel planes and guided in slides which have a connecting link only in the area of a neutral shifting position. Such gearshift devices are used particularly in construction machines. By way of a lock, which is activated below an admissible speed, a shift to the neutral position and into the opposite direction of travel is prevented. At higher speeds, accidental faulty shifts are prevented by a step-by-step gearshift mechanism. The locks, according to the invention, require only few regulation measures since they contain two mutually independent locking systems.
    Type: Grant
    Filed: November 24, 1993
    Date of Patent: February 14, 1995
    Assignee: ZF Friedrichshafen AG
    Inventors: Walter Frei, Wilhelm Hardtle, Gunter Schwarz
  • Patent number: 5388478
    Abstract: A torque wrench in which large torquing forces are applied to a workpiece by a ratchet and pawl mechanism allows the workpiece to be pretightened before final tightening by the wrench and includes an adapter assembly for transmitting torquing forces delivered independently of the pawl to the ratchet. The adapter assembly, which may be adapted for use with any ratcheting torque wrench, comprises an adapter member which is interlockingly received at one end within an axial opening of a ratchet gear and which includes at its other end a central aperture, a male extension, or a combination of the two for coupling to an external torque transmitting device such as an open ended wrench or an air powered wrench. Additional transition members are optionally provided to adapt the adapter member for use with commercially available torque transmitting devices.
    Type: Grant
    Filed: September 4, 1992
    Date of Patent: February 14, 1995
    Assignee: Barnes Group, Inc.
    Inventor: George L. Castle
  • Patent number: 5388479
    Abstract: An open-ended ratchet wrench including a handle joined to a crescent-shaped end portion. Rotatable within the crescent-shaped head portion is a jaw member that is rotatable within the crescent-shaped head portion, the jaw member being rotatable about an axis which passes through the crescent-shaped head portion. A spring biased ratchet member is displaceable in a direction parallel to the axis of rotation of the jaw member and is configured to engage and disengage the jaw member to either limit rotation of the jaw member in one direction and one direction only and in a release position to allow the jaw member to rotate freely in either direction.
    Type: Grant
    Filed: September 7, 1993
    Date of Patent: February 14, 1995
    Inventor: John Sroka
  • Patent number: 5388480
    Abstract: A pretensioning mechanism for tension element drives includes a drive pinion including a pinion shaft and a pinion sleeve; a first tension element end anchor on the pinion shaft for securing one end of a tension element wound around the drive pinion in a first direction and a second tension element end anchor on the pinion sleeve for securing the end of another tension element wound around the drive pinion in a second, opposite direction; and a worm drive including a worm gear on one of the pinion sleeve and pinion shaft and a worm on the other of the pinion sleeve and pinion shaft for relatively counter-rotating said pinion shaft and pinion sleeve for simultaneously in a single action adjusting and fixing the pretension on the tension element.
    Type: Grant
    Filed: August 4, 1993
    Date of Patent: February 14, 1995
    Assignee: Barrett Technology, Inc.
    Inventor: William T. Townsend
  • Patent number: 5388481
    Abstract: A torsional vibration damper has a longitudinal axis of rotation about which an inertial damping mass is disposed. The inertial damping mass, which may be in the form of a ring, surrounds the periphery of a central hub connected to a shaft to be damped. The hub is connected to the damping mass by an elastic ring disposed in the space between the damping mass and hub to connect the damping mass and hub. The elastic ring may be formed of rubber or other suitable elastomeric material, and has a longitudinal profile that varies along the circumferential direction of the elastic ring.
    Type: Grant
    Filed: November 24, 1993
    Date of Patent: February 14, 1995
    Assignee: Firma Carl Freudenberg
    Inventor: Rainer H. Andra
  • Patent number: 5388482
    Abstract: A variable length crank arm in a windshield wiper system provides a depressed park position for an associated wiper blade when the direction of rotation of a drive motor is reversed. The crank arm relies on an eccentric driver to vary its length and between a first length a longer second length. When the eccentric driver is rotated in a first direction to wipe the windshield, a spring loaded pin keeps the eccentric driver rotatably fixed to an output arm with the crank arm consequently at the first length. The spring loaded pin also engages a cam slot in a cam plate, the cam plate rotating freely with the output arm and the eccentric driver in the first direction. To move the blade to the depressed park position, the direction of rotation of the drive motor is reversed. This causes the cam plate to become rotatably stopped, with the now stationary cam slot forcing the pin out of engagement with the output arm.
    Type: Grant
    Filed: July 7, 1993
    Date of Patent: February 14, 1995
    Assignee: ITT Automotive Electrical Systems Inc.
    Inventors: Christopher H. Jones, Lloyd L. R. Kuck, Frank R. Lombardo
  • Patent number: 5388483
    Abstract: An internally meshing planetary gear structure or a flexible meshing type gear meshing structure is intended to achieve the lightening, miniaturization and high load capacity by increasing the meshing points of the gear even is the difference in the teeth number between the external gear and the internal gear is two or more. The difference in the teeth number between each of the external gears and the internal gear is set to be N (N: integer being two or more), the tooth profile of the external gear is constructed on the basis of the innermost curve of the epitrochoid parallel curves in N pieces which are superposed to be shifted in phase from each other, and the tooth profile of the internal gear is constructed on the basis of the innermost curve of the trochoid internally enveloping curves in N pieces which mesh with the above epitrochoid parallel curves and which are superposed to be shifted from each other by the same phase as in the external gear.
    Type: Grant
    Filed: June 2, 1993
    Date of Patent: February 14, 1995
    Assignee: Sumimoto Heavy Industries, Ltd.
    Inventors: Toshihiro Ishida, Yuzo Ogura, Akira Hirao