Patents Examined by Daniel M. Yasich
  • Patent number: 5315954
    Abstract: The present invention relates to an alarm system suitable for use in warning of overheating in rotatable bearings 4 having first and second bearing portions. The alarm system comprises an alarm signal generator means having a thermally activated engagement element 8 on a first bearing portion or body 6 connected thereto. The element 8 is in thermal connection with the bearing 4 and is formed and arranged so as to be driven from a first primed retracted position into a second deployed extended alarm position upon reaching a predetermined temperature. In the alarm position the element 8 contacts an engaging portion 12 on the second bearing portion so as to produce a distinctive alarm signal indicating that said bearing 4 has exceeded the predetermined temperature.
    Type: Grant
    Filed: December 5, 1991
    Date of Patent: May 31, 1994
    Assignee: Huwood Limited
    Inventor: Allan Richmond
  • Patent number: 5315861
    Abstract: A method and apparatus for detecting defects in a structure formed of a honeycomb matrix bonded to a support surface including providing a probe body including means defining a fluid passage forming a supply port to an exterior surface of the probe body; connecting a pressurized fluid source to the fluid passage at a location distal from the supply port; placing the supply port in close proximity to a cell of the honeycomb matrix; supplying fluid from the compressed fluid source to the cell via the fluid passage; and monitoring a fluid pressure produced at a portion of the honeycomb matrix adjacent to the supply port to detect disbonds between the honeycomb matrix and support surface.
    Type: Grant
    Filed: October 19, 1992
    Date of Patent: May 31, 1994
    Assignee: General Electric Company
    Inventors: George P. Egan, Karl L. Borneman, Douglas A. Jaeger
  • Patent number: 5314248
    Abstract: A laser device which combines a device for focusing a laser beam onto a workpiece to carry out industrial processes, for example, surface hardening heat-treatment or welding, with a row of pyroelectric sensors to simultaneously monitor the temperature of a region of the workpiece being treated by detecting the thermal energy emitted by the workpiece. This detection of thermal energy occurs along an ideal line extending across a focal length of the region of the workpiece onto which the laser beam is focused. In the present invention, both the device for focusing the laser beam and the row of pyroelectric sensors are attached to a single head.
    Type: Grant
    Filed: March 24, 1993
    Date of Patent: May 24, 1994
    Assignees: Comau S.p.A., Consiglio Nazionale Delle Ricerche
    Inventors: Giorgio Manassero, Alberto Maccagno
  • Patent number: 5311776
    Abstract: A pre-installation liquid level gauge assembly is provided which comprises a fitting with a threaded outer surface and a thread protector friction fit over the threaded outer surface. The thread protector comprises a sleeve portion and a shoulder portion extending radially inwardly to protect the end of the fitting and prevent the sleeve portion from sliding up the fitting to expose some of the lower threads. The shoulder portion defines a hole that is larger than the outer diameter of the passage in the fitting so that the thread protector does not interfere with the insertion of an extension piece into the passage in the fitting. The thread protector includes a tab and a scored line extending from the tab to the edge of the hole defined in the shoulder portion such that the tab can be pulled to totally split the thread protector to allow ready removal of the thread protector from the fitting.
    Type: Grant
    Filed: April 12, 1993
    Date of Patent: May 17, 1994
    Assignee: Rochester Gauges, Inc.
    Inventor: Lloyd R. Morris
  • Patent number: 5312187
    Abstract: The invention herein relates to a kind of safety pin with an attached multi-function thermometer which consists mainly of a temperature display and pulse tone emitting integrated circuit board. The enclosure of the aforesaid integrated circuit board can be fabricated in the shape of various animals or cartoon characters. A safety pin is mounted on the rear side of the enclosure for fastening the device onto the clothing of an infant. Extending from the integrated circuit board is a coiled conductor connected to a threaded seat that is fastened in screw-on fashion to a heat sensor rod contained in a pacifier nipple. As an infant sucks the pacifier nipple, the oral temperature of the infant is measured by the heat sensor rod and the temperature reading is shown via a liquid crystal display on the integrated circuit board. The integrated circuit board also has specially designed temperature setting functions.
    Type: Grant
    Filed: February 22, 1993
    Date of Patent: May 17, 1994
    Inventor: Kuen-Hwang Chiu
  • Patent number: 5310260
    Abstract: Thermal, optical, physical and chemical characteristics of a substrate (11) surface are determined with non-contact optical techniques that include illuminating (23) the surface with radiation having a ripple intensity characteristic (51), and then measuring the combined intensities (53) of that radiation after modification by the substrate surface and radiation emitted from the surface. Precise determinations of emissivity, reflectivity, temperature, changing surface composition, the existence of any layer formed on the surface and its thickness are all possible from this measurement. They may be made in situ and substantially in real time, thus allowing the measurement to control (39, 41) various processes of treating a substrate surface. This has significant applicability to semiconductor wafer processing and metal processing.
    Type: Grant
    Filed: December 28, 1992
    Date of Patent: May 10, 1994
    Assignee: Luxtron Corporation
    Inventors: Charles W. Schietinger, Bruce E. Adams
  • Patent number: 5309764
    Abstract: A system to determine fluid level in a tank using several tubes extending to different levels in the tank. Gas pressure in the tubes needed to release bubbles from the exit ends of the tubes indicates the hydrostatic head at the exit ends. A control unit compares the pressures in the tubes to find the highest fluid immersed bubbler tube. The proportion of fluid above the immersed tube is calculated from the pressure and added to the height of the immersed tube to get the total fluid depth. A spring loaded fixed length member, magnetically attached to the bottom of the tank, reliably secures the exit ends of the tubes at known fixed vertical locations.
    Type: Grant
    Filed: May 26, 1993
    Date of Patent: May 10, 1994
    Assignee: ITT Corporation
    Inventors: Mark S. Waldrop, Peter P. Elderton, Raymond S. Ohashi
  • Patent number: 5310261
    Abstract: A container for body fluid specimens includes temperature sensing means and means to read the temperature of a fluid specimen in the container. On the outside face of the container there is a first strip to cover the temperature reading means and over the strip is a label. Removal of the strip defaces or at least partly destroys the label which can indicate tampering with the container.
    Type: Grant
    Filed: October 29, 1992
    Date of Patent: May 10, 1994
    Assignee: Southern California Edison Company
    Inventors: Sharon L. Blue, Jacob W. Walker
  • Patent number: 5307678
    Abstract: A level measuring probe in which all potential leakage paths are closed by concentrically shrinking the outmost diametrical surface of the probe by some mechanical means such as a crimper or rotary swager to provide sufficient force to substantially uniformly deform the ground, guard, and active elements and insulators around the circumference of the probe such that multiple seals are created. A circumferential notch is preferably provided in the active probe element at the point of the crimping or swaging to provide "blowout protection" whereby the active probe electrode is held in place when used in a high pressure vessel. A pressure seal between the electrodes and insulation material is also maintained by using an elastomeric insulator which returns to its original shape after heating or a thin electrode which "gives" a little when the insulator expands radially during heating. The arrangement of the invention thus eliminates the need for costly machined parts and bushings to provide pressure seals.
    Type: Grant
    Filed: June 7, 1993
    Date of Patent: May 3, 1994
    Assignee: Drexelbrook Engineering Co.
    Inventor: Evan Cost
  • Patent number: 5308161
    Abstract: Pyrometer apparatus measures the temperature of a semiconductor wafer which when heated by radiation from a bank of lamps emits thermal radiation which includes radiation contained in a selected spectral band. The apparatus includes a reaction chamber supporting the wafer and disposed above the bank of lamps. A hollow envelope reflecting incident radiation and thermal radiation from the wafer surrounds and is spaced from the chamber and the bank of lamps. A portion of the reflected radiation and the thermal radiation passes upwardly through a first opening. A source of said incident radiation disposed adjacent a second opening produces radiation within said spectral band which enters said envelope and is reflected inside the envelope to illuminate a selected spot on the wafer hemispherically. The spot reflects a portion of the incident radiation upwardly through the first opening.
    Type: Grant
    Filed: February 11, 1993
    Date of Patent: May 3, 1994
    Assignee: Quantum Logic Corporation
    Inventor: Alexander Stein
  • Patent number: 5307756
    Abstract: A bicycle bell has a finger actuated strike lever mounted on a rotating base. The rotating base can be rotated around the periphery of the ringer. Thus, the bell can be quickly adjusted for various riders or for switching from the right to the left handlebar. Additionally the present invention allows the user to choose which finger to use as well as to accommodate other equipment such as bicycle levers, etc.
    Type: Grant
    Filed: June 10, 1993
    Date of Patent: May 3, 1994
    Inventors: Kyoji Ichimura, Motohisa Ishiwa, Kazuharu Seki
  • Patent number: 5308162
    Abstract: A temperature abnormality detecting structure for a fluid pipe detects a temperature abnormality location by laying an optical fiber serving as a temperature detecting portion of a Ramam scattering optical fiber distribution type temperature sensor along a fluid pipe. The fluid pipe is divided into a plurality of sections in the longitudinal direction, independent optical fibers are laid along the fluid pipe in the respective sections. A portion of the optical fiber laid along one of the adjacent sections is superposed to be laid on a portion of the optical fiber laid along the other of the adjacent sections in the vicinity of each of the respective boundaries of the sections.
    Type: Grant
    Filed: February 10, 1993
    Date of Patent: May 3, 1994
    Assignee: Fujikura Ltd.
    Inventors: Kazuo Amano, Shotaro Yoshida
  • Patent number: 5305637
    Abstract: The axial force on the valve stem of a large valve can be related to the output of a strain sensor mounted on the yoke of the valve, but accuracy can be achieved only if the strain sensor is first calibrated by applying a known axial force to the valve stem. This can be done conveniently by using the invention, which includes two loading beams juxtaposed on opposite sides of the valve stem, elongated in a direction perpendicular to the valve stem, and including a split nut or a collet for gripping the valve stem. Legs extend from the ends of the loading beam assembly parallel to the valve stem, and one or both of these legs includes a hydraulic ram for applying force to one or both ends of the loading beam assembly. This applied force can be measured independently of the yoke-mounted strain sensor.
    Type: Grant
    Filed: March 3, 1993
    Date of Patent: April 26, 1994
    Assignee: Westinghouse Electric Corp.
    Inventor: Donald L. Bauer
  • Patent number: 5306087
    Abstract: Apparatus for conducting thermogravimetric analysis continuously when sample weights are measured automatically in the case of measurement of a plurality of samples. A plurality of empty sample containers are transferred individually in succession from a tray to a thermobalance, where each container is weighed and a representation of the weight of each empty container is stored in a first memory. Then, a sample is loaded into each container in the tray and the loaded sample containers are transferred individually in succession from the tray to the thermobalance where each loaded container is weighed and a representation of the weight of each container is stored in a second memory. The weight of each sample is then determined based on the difference between the representations stored in the first and second memories.
    Type: Grant
    Filed: August 25, 1992
    Date of Patent: April 26, 1994
    Assignee: Seiko Instruments Inc.
    Inventors: Nobutaka Nakamura, Haruo Takeda, Yoshiharu Sugano
  • Patent number: 5306088
    Abstract: A method for monitoring temperature in a turbine component includes detecting a change in photoconduction properties in a fiber-optical cable disposed inside a turbine component, being caused by a temperature change in the turbine component. An apparatus for monitoring temperature in a turbine component includes a fiber-optical cable disposed in the interior of a turbine component, and a device for detecting a change in photoconduction properties in the fiber-optical cable being caused by a temperature change in the turbine component.
    Type: Grant
    Filed: January 29, 1993
    Date of Patent: April 26, 1994
    Assignee: Siemens Aktiengesellschaft
    Inventor: Walter Zoerner
  • Patent number: 5305639
    Abstract: A liquid petroleum gas (LPG) gauge sensor unit fits between the units of an existing magnetically-coupled LPG gauge and includes a magnetic field sensing switch, a mechanism to variably position the switch and an intermediate magnet. The intermediate magnet is positioned upon an axle-like mechanism upon which it is free to rotate and magnetically couples to the existing gauge base magnet which is, in turn, connected to a float that measures the liquid level. The existing indicator magnet in the gauge assembly magnetically couples with the intermediate magnet so that the gauge unit visually indicates the level of LPG within the LPG tank, despite the increased distance between the base and indicator magnets caused by the sensor unit. The magnetic field sensing switch is used to sense the position of the base or intermediate magnet and thereby sense the liquid level.
    Type: Grant
    Filed: October 16, 1992
    Date of Patent: April 26, 1994
    Assignee: Scully Signal Company
    Inventor: Robert A. Pontefract
  • Patent number: 5305705
    Abstract: A traffic marker body defined by a conical spiral arm (16) mounted for collapse into a flat core held in matching recess (22) in a base (12) by means of an automatic locking mechanism including a latch member (24) with friction reducing rollers (34, 36) to facilitate lateral travel along cam guide surfaces (38, 40, 48, 50) into alignment with a latch engaging member including a slot (46) to lock the traffic marker body (14) into a collapsed condition (FIG. 1). The adjacent segments of the spiral arms (16) are spaced sufficiently for air passageways passing through the body (14) for improved stability and to enhance visibility of elongate reflector members (54) woven in and out between adjacent segments of a spiral arm (16) with reflective surfaces on both sides for creation of visual depth and a twinkling effect for enhanced visibility.
    Type: Grant
    Filed: February 14, 1992
    Date of Patent: April 26, 1994
    Inventor: Greg R. Gagliano
  • Patent number: 5303587
    Abstract: The present invention comprises an oil-filled depth gauge which is made far less sensitive to violent shock and the potential resulting inaccuracies to the maximum depth gauge indicator from such shock. More specifically, the present invention comprises an improved oil-filled scuba diving depth gauge in which the improvement provides a fluid dam member which may be affixed to or molded into the transparent enclosure covering the dial face to effectively block the flow of the oil in the region of the gauge occupied by the maximum depth indicator dial. The fluid dam reduces the likelihood that a sudden jar or other violent shock will induce a relative differential in the motion between the oil and the gauge body which might otherwise produce inaccuracies in the position of the maximum depth indicator dial.
    Type: Grant
    Filed: March 17, 1989
    Date of Patent: April 19, 1994
    Assignee: Under Sea Industries, Inc.
    Inventors: Dean R. Garraffa, James T. Dexter
  • Patent number: 5303875
    Abstract: The improved leader block uses a substantially rectangular body that is equipped with two tape guide projections which form, in conjunction with the front of the body, a U-shaped channel open at one end and adapted to received the end of the magnetic tape that extends through the opening in the housing of the magnetic tape cartridge. The size and shape of this U-shaped channel substantially corresponds to the dimensions of the magnetic tape in order to precisely align the magnetic tape within the channel and with reference to the leader block body. The section of the front of the leader block body that constitutes the bottom of the U-shaped channel includes a plurality of parallel oriented, spaced apart grooves inscribed therein. These grooves extend from the top tape guide projection to the bottom tape guide projection in order to provide slots to receive corresponding projections that are included on the surface of the cover of the leader block.
    Type: Grant
    Filed: February 10, 1992
    Date of Patent: April 19, 1994
    Assignees: Minnesota Mining and Manufacturing Company, Storage Technology Corporation
    Inventors: David T. Hoge, Michael W. Johnson, John C. Owens, George P. Rambosek
  • Patent number: RE34601
    Abstract: A capacitive level gauge for placement in a container (12) determines the level of substance (14) in the container (12). The gauge (10) includes a measurement capacitor (C1) for measuring level and a reference capacitor (C2) for determining dielectric constant of the substance (14). A controller (34) is responsive to the capacitors (C1, C2) for producing a level signal which simultaneously indicated the level and dielectric constant of the material. The level signal includes a frequency which is representative of dielectric constant and a pulse width representative of level. The gauge (10) supports a first pair of parallel conductive members (26, 28) to establish the measurement capacitor (C1) and a second pair of parallel conductive members (28, 32) spaced along the gauge and below the measurement capacitor (C1) to establish the reference capacitor (C2).
    Type: Grant
    Filed: July 29, 1992
    Date of Patent: May 10, 1994
    Inventor: Peter A. Hochstein