Patents Represented by Law Firm Fitch, Even, Tabin, Flannery & Welsh
  • Patent number: 4513585
    Abstract: Increased efficiency for heating water with a conventional electric water heater tank is obtained with a unit which may be placed next to the side of the hot water tank and readily connected thereto. More specifically, the preferred unit fits along the vertical wall of the conventional water tank and, to this end, includes a narrow upright housing with an inner arcuate wall positioned closely adjacent the cylindrical wall of a water heater tank. The preferred unit has therein a refrigeration apparatus comprising a condenser at the upper end of the unit and closely adjacent the upper end of the tank, a compressor directly therebelow, and an evaporator which withdraws heat from air circulating therearound in a lower chamber.
    Type: Grant
    Filed: January 12, 1981
    Date of Patent: April 30, 1985
    Assignee: Manoir International, Inc.
    Inventor: Richard Z. Maisonneuve
  • Patent number: 4477847
    Abstract: Apparatus is disclosed for selectively prohibiting certain recording operations in a recording and reproducing machine that has generally random accessibility to a plurality of separate portions of information, such as still images recorded on separate tracks of disc packs of a generally standard computer disc drive. The apparatus specifies a group of the tracks as bulk tracks and a second group as working tracks, with the greater proportion of the total number of tracks comprising the bulk tracks which may be a relatively permanent library of the information recorded thereon. The apparatus generally prohibits erasing or overrecording of bulk tracks, unless an enabling signal is generated, which can be produced from an operator controlled keyswitch.
    Type: Grant
    Filed: June 14, 1979
    Date of Patent: October 16, 1984
    Inventors: Howard W. Knight, Edwin W. Engberg
  • Patent number: 4420023
    Abstract: An apparatus collects a leaking viscous liquid, such as grease from a bearing, and then transfers it under pressure for reuse or for reclaiming. The apparatus has an open top collector or head tank which may be positioned under the source of the leak. After a sufficient liquid head is present in the head tank the collected liquid flows through a check valve into a pressure vessel. A liquid level sensing means in the tank responds to a predetermined level of liquid in the pressure vessel to shift a valve to connect a source of high pressure air to the pressure vessel. Outlet conduit means from the pressure vessel allows the pressurized liquid to flow from the vessel. One way check valves are preferably used in the conduit means to restrict the liquid flow to that mentioned. Preferably the entire assembly is mounted on a lightweight skid to be easily moved.
    Type: Grant
    Filed: March 14, 1980
    Date of Patent: December 13, 1983
    Inventor: Raymond S. Cislak
  • Patent number: 4409344
    Abstract: A low shrink unsaturated polyester based upon propylene glycol terephthalate reacted with a dibasic acid or anhydrides thereof and glycols and mixing the polyester with a filler, fibrous reinforcing agent and catalyst.
    Type: Grant
    Filed: June 23, 1981
    Date of Patent: October 11, 1983
    Assignee: Cargill Incorporated
    Inventors: Thomas J. Moulson, John E. Greenzweig
  • Patent number: 4399573
    Abstract: A base frame for a box-spring which is reinforced by longitudinal beams secured to the upper surfaces of the cross slats within the spring assembly.
    Type: Grant
    Filed: February 21, 1980
    Date of Patent: August 23, 1983
    Assignee: Simmons U.S.A. Corporation
    Inventor: Leslie I. Baright
  • Patent number: 4397397
    Abstract: A moisture proof vial and closure system are provided which may be used in a child-resistant mode or in a non-child resistant mode. In the child resistant mode locking lugs 22 on the closure are interlocked with bayonnet slots on the vial. A non-child resistant operation in a moisture proof system may be achieved by leaving the locking lugs 22 off of the closure skirt wall 20 and by adding a detenting means 51 inside of the container to engage and hold a sealing plug 39 against sliding outwardly of the container because of the lack of locking lugs on the closure 10A. A simple push inward will force the sealing plug 39 home to its sealing position to seal the medicine in the vial, and a simple pull on the closure to pull the fitment from the detenting means is needed to remove the closure. The preferred detenting means 51 is in the form of radially inwardly directed projections 52 formed on the interior container wall to abut and restrain the sealing plug against inadvertent sliding from the container.
    Type: Grant
    Filed: April 17, 1981
    Date of Patent: August 9, 1983
    Assignee: Kerr Glass Manufacturing Corporation
    Inventor: James E. Herr
  • Patent number: 4396591
    Abstract: A method of extraction of HI from an aqueous solution of HI and I.sub.2. HBr is added to create a two-phase liquid mixture wherein a dry phase consists essentially of HBr, I and HI and is in equilibrium with a wet phase having a far greater HBr:HI ratio. Using a countercurrent extractor, two solutions can be obtained: a dry HBr--HI--I.sub.2 solution and a wet essentially HBr solution. The dry and wet phases are easily separable, and HI is recovered from the dry phase, after first separating I.sub.2, as by distillation. Alternatively, the HI-HBr liquid mixture is treated to catalytically decompose the HI. HBr is recovered from the wet phase by suitable treatment, including high-pressure distillation, to produce an H.sub.2 O--HBr azeotrope that is not more than 25 mole percent HBr. The azeotrope may be returned for use in an earlier step in the overall process which results in the production of the aqueous solution of HI and I.sub.2 without major detriment because of the presence of HBr.
    Type: Grant
    Filed: May 18, 1982
    Date of Patent: August 2, 1983
    Assignee: GA Technologies Inc.
    Inventor: John H. Norman
  • Patent number: 4392376
    Abstract: A method and apparatus is disclosed for monitoring flow conditions in boreholes or the like wherein a test interval is defined by a packer system and contains a substantially incompressible fluid or liquid making it difficult to conduct measurements from the surface. According to the method and apparatus of the present invention, a variable volume device is arranged within the test interval along with a suitable flow monitor which may comprise the variable volume device itself, the variable volume device being operable to limit pressure variation within the test interval and thereby minimize compliance effects over a predetermined test period. Preferably, the variable volume device is coupled with a pressure monitor for maintaining substantially constant pressure in the test interval. In different embodiments, an initial pressure differential is established between the test interval and the surrounding formation by operation of the same variable volume device or by means of a second variable volume device.
    Type: Grant
    Filed: March 31, 1981
    Date of Patent: July 12, 1983
    Assignee: S-Cubed
    Inventors: Peter L. Lagus, Edward W. Peterson, William O. Hicks
  • Patent number: 4393357
    Abstract: CCD methods and devices for recording transient data signals, in which charge is transferred under the influence of transmission line fields at sampling sites disposed along a charge transfer channel.
    Type: Grant
    Filed: February 4, 1981
    Date of Patent: July 12, 1983
    Assignee: Q-Dot, Inc.
    Inventors: Thomas E. Linnenbrink, David A. Gradl
  • Patent number: 4388562
    Abstract: An electronic ballast circuit for powering a plurality of fluorescent lamps or the like from an unsmoothed DC voltage source includes a sine wave converter operatively connected to receive said DC voltage, for generating a high frequency alternating voltage of sufficient amplitude to power said lamps. The converter comprises a tank circuit and two push-pull transistors connected thereto and a current source capacitively coupled to said tank circuit for providing base drive alternately to each transistor. A lamp filament heater current cancellation circuit reduces power drain once the lamps have turned on.
    Type: Grant
    Filed: November 6, 1980
    Date of Patent: June 14, 1983
    Assignee: Astec Components, Ltd.
    Inventor: Elliot Josephson
  • Patent number: 4386363
    Abstract: A wideband chroma key switching signal is generated from lower bandwidth chrominance signals in a video signal by first conventionally generating a chroma key switching signal from these chrominance signals, and then detecting high frequency transition components in the corresponding luminance signal. These luminance signal high frequency components are then added to the switching signal in a manner that insures that their polarities match, thereby generating a higher bandwidth chroma key switching signal. This resultant higher bandwidth chroma key switching signal is used to control cross fade amplifiers which function to output either the video signals of a first or a second scene with linear transitions between these video signals during switching.
    Type: Grant
    Filed: April 10, 1981
    Date of Patent: May 31, 1983
    Assignee: Ampex Corporation
    Inventor: Eric F. Morrison
  • Patent number: 4386074
    Abstract: Peptides which inhibit the secretion of gonadotropins by the pituitary gland and inhibit the release of steroids by the gonads. Administration of an effective amount prevents ovulation of female mammalian eggs and/or the release of steroids by the gonads. The peptides have the structure:R.sub.1 -dehydro Pro-R.sub.2 -D-Trp-Ser-Tyr-D-Trp-Leu-Arg-Pro-Gly-NH.sub.2wherein R.sub.1 is selected from the group consisting of hydrogen, formyl, acetyl, acrylyl, benzoyl and allyl; R.sub.2 is selected from the group consisting dichloro-D-Phe, C.sup..alpha. Me4Cl-D-Phe, (CH.sub.3).sub.5 -D-Phe, CF.sub.3 -D-Phe, F-D-Phe, difluoro-D-Phe, AcNH-D-Phe, NO.sub.2 -D-Phe, dinitro-D-Phe, Br-D-Phe, dibromo-D-Phe, CH.sub.3 S-D-Phe, OCH.sub.3 -D-Phe and CH.sub.3 -D-Phe, wherein any D-isomer amino acid can be substituted for D-Trp in the 6-position, and wherein N.sup..alpha. MeLeu may be substituted for Leu.
    Type: Grant
    Filed: July 27, 1981
    Date of Patent: May 31, 1983
    Assignee: The Salk Institute for Biological Studies
    Inventors: Wylie W. Vale, Jr., Jean E. F. Rivier
  • Patent number: 4385360
    Abstract: A computer-controlled reproduction device is described for recreating a 3-dimensional image representative of a subject image in a permanent medium such as a sheet of transparent plastic. Digital signals representative of the subject image are stored in the memory of the computer and used by the computer to control a machine tool for drilling a plurality of holes in the plastic sheet representative of the subject image. The machine tool contains a drill bit which is tapered over the length of its travel into the plastic sheet so the deeper the penetration into the sheet, the larger the diameter of the entrance hole in the sheet. The depth of each hole is controlled by the computer to correspond to the lightness of the subject image at that point.
    Type: Grant
    Filed: August 4, 1980
    Date of Patent: May 24, 1983
    Assignee: Micro-Power Computer Systems
    Inventors: Mitsuru Yamada, Paul H. Yamada, Alvin E. Evans
  • Patent number: 4382568
    Abstract: A spreader unit is provided for connection to a hopper carried in an airplane for spreading granular material at a controlled rate of flow. A moveable gate on the spreader is moveable between a closed position covering a discharging opening through which the granular material may flow and an open position defining a gap to allow a predetermined flow rate of granular material from the hopper. A new and improved adjustable control 70 is provided in the cockpit of the airplane adjacent the pilot for manipulation by the pilot to control the gate width to an accurate degree to provide the desired flow rate despite deflection or other binding or lost motion in the linkage or levers in the actuating means for the gate. The control is positioned on the spreader adjacent the gate and a spreader extends from the actuator into the cockpit. A turnable handle is positioned adjacent the pilot for adjusting the size of the gap and thereby the flow rate of the granular material from the hopper.
    Type: Grant
    Filed: March 24, 1980
    Date of Patent: May 10, 1983
    Inventor: Robert O. Schertz
  • Patent number: 4382966
    Abstract: A new animal feed suspension including method for its preparation, where xanthan gum stabilizes the suspension such that an excess of 20% by weight insoluble nutrients are held suspended therein.
    Type: Grant
    Filed: November 12, 1980
    Date of Patent: May 10, 1983
    Assignee: Cargill Incorporated
    Inventors: James C. Mickus, Robert L. Hesse, Gary L. Pruitt
  • Patent number: 4381795
    Abstract: A diverter valve construction for controlling flow therethrough of a high temperature fluid and method of making same are provided wherein the valve construction comprises a metal housing, a refractory lining for substantially the entire inside surface of the housing, passage means in the valve construction including an inlet passage and a pair of outlet passages, and flow control means for controlling fluid flow between the inlet and outlet passages and wherein the flow control means comprises a pair of poppet valves with each of the poppet valves being supported within the housing and being adapted to be operated independently of the other poppet valve, and a pair of ceramic tubular valve seat members fixed against the refractory lining with each seat member being adapted to receive a portion of an associated poppet valve thereagainst to control flow therethrough to an associated outlet passage.
    Type: Grant
    Filed: March 2, 1981
    Date of Patent: May 3, 1983
    Assignee: Dayco Corporation
    Inventors: John B. Power, Thomas M. Casale, Victor Pauperas
  • Patent number: 4380246
    Abstract: A butterfly valve for controlling flow therethrough of a high temperature fluid and method of making same are provided wherein such valve comprises an outer metal housing, a ceramic lining carried by the housing and defining a fluid flow passage through the valve, a valve closure member, a rotatable shaft fixed to the member, and means rotatably supporting the shaft on the housing to enable rotation of the member within the flow passage from an open to a closed position to open and close the flow passage, and wherein the member is made of a ceramic material and the shaft is embedded substantially centrally between opposed surfaces of the member.
    Type: Grant
    Filed: March 20, 1981
    Date of Patent: April 19, 1983
    Assignee: Dayco Corporation
    Inventors: Thomas M. Casale, Frederick J. Schmitz, Jr., Victor Pauperas
  • Patent number: 4379696
    Abstract: A paint display product is disclosed which comprises a Mylar film base which will provide a high gloss finish to the paint when viewed through the base to the paint.
    Type: Grant
    Filed: February 12, 1981
    Date of Patent: April 12, 1983
    Assignee: Color Communications, Inc.
    Inventor: Stanley Lerner
  • Patent number: D268695
    Type: Grant
    Filed: November 24, 1980
    Date of Patent: April 19, 1983
    Assignee: K. G. M. Corporation
    Inventor: John W. Kolf
  • Patent number: D273684
    Type: Grant
    Filed: December 4, 1980
    Date of Patent: May 1, 1984
    Assignee: Carrera International Corporation
    Inventor: Franz Dianitsch