Patents Represented by Attorney, Agent or Law Firm R. Russel Austin
  • Patent number: 5512390
    Abstract: An electrical-storage battery includes a cell defined by two spaced-apart graphite electrode-plates one of which forms a cathode and the other an anode. The cell contains an electrolyte which is an aqueous solution including sulfuric acid. In a charged condition, the electrode-plate which forms a cathode has a surface layer of lead in contact with the electrolyte, and the electrode-plate which forms the anode has a surface layer of manganese dioxide in contact with the electrolyte. In a battery having multiple cells arranged in electrical series, a single graphite electrode-plate physically separates adjacent cells, but electrically connects the cells. This electrode-plate serves as a cathode for one of the adjacent cells, and as an anode for the other.
    Type: Grant
    Filed: July 21, 1994
    Date of Patent: April 30, 1996
    Assignee: Photran Corporation
    Inventor: Ivan M. Obushenko
  • Patent number: 5508091
    Abstract: A multilayer antireflection coating for a liquid cell three high refractive index layers and two low refractive index layers arranged alternatively with high refractive index layers outermost. The innermost high refractive index layer is formed from an electrically-conductive metal oxide material and may have an optical thickness between about one-tenth and three wavelengths of visible light. Thickness of each layer may be adjusted to provide lowest reflectivity. Alternatively layer thickness may be arranged such that if three layers of the coating are etched away to define an electrode coating, spectral response of the remaining two layers is the same as the original five layers.
    Type: Grant
    Filed: December 30, 1993
    Date of Patent: April 16, 1996
    Assignee: Photran Corporation
    Inventor: R. Russel Austin
  • Patent number: 5429421
    Abstract: A hub (10) for a spoked wheel includes flanges (18) having a plurality of open-topped slots (20) for receiving spokes (22). The hub is designed for use with spokes having an elongated shaft portion (30) and an enlarged head portion (32). The slots have an open end (25) at a periphery of the flange and an enlarged closed end (27) located between the periphery of the flange and an axis of rotation of the hub. The enlarged end of the slot is wide enough to accommodate the enlarged end portion of the spoke. A narrowest portion (29) of the slot is only wide enough to accommodate the shaft portion of the spoke. Slots in a flange member are arranged in a pattern corresponding to a lacing pattern of spokes in a the wheel. A spoke may be laid into a slot with the enlarged head portion of the spoke in the enlarged portion of the slot, and with the spoke in its correct orientation in the spoke-lacing pattern.
    Type: Grant
    Filed: February 8, 1994
    Date of Patent: July 4, 1995
    Inventor: Paul B. Watson
  • Patent number: 5421979
    Abstract: Vacuum coating apparatus (30) includes a coating chamber (32), and a load-lock chamber (34) connected to the coating chamber via a high vacuum valve (44). The coating chamber includes deposition-devices (123) and a cylindrical or drum shaped substrate-transporter (100) for transporting substrates (64) past the deposition-devices. Substrates are carried on substrate-carriers (66) which are configured to fit into transport-stations (102) around the periphery of the substrate-transporter. A magazine (61) holding a plurality of substrate-carriers is located in the load-lock chamber. An injector arrangement (120) is provided for ejecting a substrate-carrier from the magazine, transporting the substrate-carrier through the high vacuum valve, and inserting the substrate-carrier into a transport-station of the substrate-carrier.
    Type: Grant
    Filed: August 3, 1993
    Date of Patent: June 6, 1995
    Assignee: Photran Corporation
    Inventor: David E. Stevenson
  • Patent number: 5420725
    Abstract: Video recording apparatus (10) includes master video apparatus (12) including a video camera(16) and a master video recording device (18). The master video recording device is respectively started and stopped by respectively first and second signals (S1 and S2) provided by the camera. The master recording device produces an original video recording. The original video recording includes a time-code (TC) which is not visible in frames of the original recording when it is replayed. A synchronous duplicate video recording apparatus (14) includes a duplicate video recording device (26) and is connected to the master video recording apparatus. The duplicate video recording device provides a duplicate video recording including the time-code. The time-code is visible in frames of the duplicate recording when it is replayed. The synchronous duplicate video recording apparatus includes circuitry (28) which enables the master and duplicate video recording devices to be started and stopped synchronously.
    Type: Grant
    Filed: March 17, 1994
    Date of Patent: May 30, 1995
    Inventors: Jack K. C. Hsu, Aldo J. Panattoni
  • Patent number: 5415756
    Abstract: A process for depositing a compound of a metal and a reactive gas includes heating a metal target (32), in an evacuated chamber (22) to a predetermined reaction temperature. The reaction temperature is above a critical temperature which is higher than about half the melting point of the metal but below the vaporization temperature of the metal target. At this reaction temperature, the metal target reacts with the reactive gas to produce, in gaseous form, the compound or a sub-compound of the metal and the reactive gas. The gaseous compound or sub-compound is reacted with the reactive gas on a substrate (36) to form a solid layer of the compound on the substrate.
    Type: Grant
    Filed: March 28, 1994
    Date of Patent: May 16, 1995
    Assignee: University of Houston
    Inventors: John C. Wolfe, Wong S. Ho, Darian L. Licon, Yat-Lung Chau
  • Patent number: 5392431
    Abstract: A projection TV lens (60) includes first (64), second (66), third (70), and fourth (72) element-groups counted in numerical order and arranged on a common optical axis (62). The first, third, and fourth groups each include at least one lens element. The first and third group has positive power and the fourth group has negative power. The second group includes a first lens element (67) having negative power and having a graded refractive index.
    Type: Grant
    Filed: October 5, 1992
    Date of Patent: February 21, 1995
    Inventor: Richard N. Pfisterer
  • Patent number: 5381686
    Abstract: An apparatus for crimping a terminal onto a wire includes a hydraulic cylinder including a hydraulic ram, two normally open crimper jaws closeable by the hydraulic ram, and a hydraulic pressure supply for delivering hydraulic pressure to the hydraulic cylinder to operate the hydraulic ram and close the crimper jaws. The hydraulic pressure may be applied initially at a first level sufficient to cause the crimper jaws to close on and grip the terminal but less than sufficient to cause the crimper jaws to crimp the terminal, and subsequently applied at a second, higher level sufficient to crimp the terminal.
    Type: Grant
    Filed: March 3, 1994
    Date of Patent: January 17, 1995
    Assignee: Coherent Inc.
    Inventor: James A. Thorup
  • Patent number: 5378448
    Abstract: In a liquid-liquid leaching process for removing selenium from selenium-contaminated sulfur, the selenium-contaminated sulfur in dissolved in an organic solvent to form an organic solution including sulfur and selenium. Selenium in the organic solution is preferentially oxidized to form one or more hydrophilic compounds of selenium. The hydrophilic compounds of selenium are transferred into an aqueous solution by liquid-liquid leaching, thereby removing selenium contaminant from the organic solution and leaving purified sulfur therein. The organic solution is then separated from the aqueous solution for recovering the purified sulfur.
    Type: Grant
    Filed: June 7, 1994
    Date of Patent: January 3, 1995
    Inventors: Hsing K. Lin, Pemmasani D. Rao
  • Patent number: 5376989
    Abstract: A negative stage comprises a generally flat lower platform and a generally flat upper platform, each of the platforms includes an aperture for allowing passage of light through the platform from a light source in the enlarger.The platforms are aligned in a face-to-face relationship with the apertures generally in alignment. The platforms are spaced-apart by at least three adjustable support-members extendable in a direction generally perpendicular to the platforms for adjusting spacing and alignment of the platforms. In one embodiment The upper platform is retained in contact with lower platform by spring loaded plungers. The spring loaded retaining arrangement allows relative movement between the platforms for alignment while still retaining the platforms firmly in contact with the support-members.A light-baffle arrangement prevents light leakage between the platforms.
    Type: Grant
    Filed: February 26, 1993
    Date of Patent: December 27, 1994
    Inventor: William R. Ziegler
  • Patent number: 5358643
    Abstract: A treatment method for removing arsenic from water includes conditioning the water with one more additives including an iron salt, an acid, and an oxidant until the water contains more ion than arsenic, is acidic, and has an ORP of about plus 600 mV. A reagent is then added to the conditioned water until it becomes basic and the water and additives are then reacted in a reaction chamber wherein iron and arsenic are co-precipitated in the form of iron arsenate and iron hydroxide or iron oxide. Treated water is then separated from the precipitate by settling of filtering.
    Type: Grant
    Filed: February 8, 1994
    Date of Patent: October 25, 1994
    Inventor: William W. McClintock
  • Patent number: 5347438
    Abstract: A lamp includes a bowl shaped reflector having an elongated aperture in its base for mounting a light source. A light source including a filament enclosed in a transparent envelope is mounted in the aperture such that when the light source is illuminated light is projected from the front of the reflector and also escapes through the aperture to the rear of the reflector. A lamp housing extending behind the reflector is transparent and includes a color filter material. Light projected from the front of the reflector provides light for illumination, while light escaping through the aperture in the reflector is transmitted through the color filter material and provides a safety signal.
    Type: Grant
    Filed: June 25, 1993
    Date of Patent: September 13, 1994
    Inventor: Robert A. Lerner
  • Patent number: 5328585
    Abstract: A linear planar-magnetron sputtering cathode comprises a cathode body (22) including two side-walls (104) two end-walls (106) and a target-supporting member (102) attached to the walls. The cathode body encloses a magnet array (40) which may be moved reciprocally in at least one direction relative to the cathode body. A cooling fluid may be flowed through the target supporting member for cooling the target. A cooling fluid may also be flowed through the side-walls and the end-walls for cooling the end walls. A cooled enclosure is thus be provided for the magnet-array.
    Type: Grant
    Filed: December 11, 1992
    Date of Patent: July 12, 1994
    Assignee: Photran Corporation
    Inventors: David E. Stevenson, Geoffrey H. Humberstone
  • Patent number: 5279793
    Abstract: A fiber optic optical osmometer (50) includes a fiber optic probe (20) inserted into a chamber (24) including a filter member (10 ) and a diaphragm (14) responsive to a pressure change in the chamber. The filter member transmits a fluid including an analyte into the chamber. A reagent within the chamber reacts with the analyte to form a reaction product. The filter member retains the reaction product in the chamber creating a pressure change. The diaphragm is illuminated by light directed to it from the fiber optic probe. Light reflected from the diaphragm is returned via the fiber optic probe to a detector and measurement electronics. As the diaphragm responds to pressure changes in the chamber, light returned to the detector is modulated proportional to the pressure change. The pressure change may be interpreted as a measure of the concentration of the analyte in the fluid.
    Type: Grant
    Filed: September 1, 1992
    Date of Patent: January 18, 1994
    Inventor: Alexander J. Glass