Patents Represented by Law Firm Memel, Jacobs, Pierno & Gersh
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Patent number: 4586001Abstract: A Class B push-pull amplifier designed for use at low supply voltages (e.g. 1 to 2 volts) wherein complementary push-pull output transistors T.sub.3, T.sub.4 are biased by a biasing chain consisting of resistor R.sub.1, transistor T.sub.1, resistor R.sub.2, transistor T.sub.2, resistor R.sub.3, with the signal to the bases of T.sub.3, T.sub.4 being supplied from opposite ends of R.sub.2. The value of R.sub.2 is twice that of R.sub.1 and R.sub.3. The circuit is preferably used in a bridge configuration with a second similar amplifier set at unity gain driven from the first amplifier. It may be used to power the loudspeaker of a miniature radio receiver.Type: GrantFiled: April 3, 1984Date of Patent: April 29, 1986Assignee: Sinclair Research Ltd.Inventor: Michael R. Pye
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Patent number: 4574079Abstract: Radiolabeled angiotensin converting enzyme inhibitors having the general formula: ##STR1## wherein X is a radiolabeling substituent, preferably a radiolabeling halogen substituent such as .sup.123 I, .sup.125 I, .sup.131 I, .sup.75 Br or .sup.77 Br,Y is hydroxy, alkoxy containing from 1 to 6 carbon atoms, phenoxy, benzyloxy, or amino,R.sub.1 is hydrogen or methyl,R.sub.2 is hydrogen, an ester moiety hydrolyzable under mammalian in vivo conditions, such as alkyl of 1 or 2 carbon atoms, phenyl or benzyl, or an ionically bonded anion of a physiologically acceptable non-toxic salt, andm is an integer of from 1 to 6, are useful as in vivo radioimaging compounds for mammalian sites.Type: GrantFiled: May 27, 1983Date of Patent: March 4, 1986Inventors: Haralambos P. Gavras, James W. Ryan, Alfred Chung
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Patent number: 4563332Abstract: An apparatus for preparing a sample of liquid for examination and analysis. The apparatus includes a tube closed at one end and open at the other, and a pipette dimensioned for insertion into the tube. The pipette has a sealing surface which is slightly smaller in diameter than the inside diameter of the tube. Protruding from the sealing surface is a rib which is aligned along the longitudinal axes of the pipette and which engages a portion of the inside wall of the tube to maintain the pipette in the tube.Type: GrantFiled: April 27, 1983Date of Patent: January 7, 1986Assignee: ICL Scientific, Inc.Inventors: Vance C. Mitchell, Thomas A. Safstron
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Patent number: 4555677Abstract: An amplifier for use in the I.F. stages of an F.M. radio receiver comprises several identical direct-coupled stages 2,4,6 each comprising common emitter transistors 8 and inductive loads 10.Type: GrantFiled: April 3, 1984Date of Patent: November 26, 1985Assignee: Sinclair Research LimitedInventor: Graham E. Beesley
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Patent number: 4525459Abstract: Preparations useful in the diagnosis of infectious mononucleosis are disclosed. Horse and sheep erythrocytes are purified and essentially homogenous glycoproteins are extracted. The purified glycoproteins are useful as antigens in testing for the presence of the heterophile antibodies of infectious mononucleosis and in the preparation of reagents for the enumeration of rosetting lymphocytes without having to have available fresh sheep blood.Type: GrantFiled: January 27, 1982Date of Patent: June 25, 1985Assignee: University of MiamiInventor: Mary A. Fletcher
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Patent number: 4519184Abstract: A filling station for filling flexible containers with liquid. The filling head is fixed. The container is gripped and brought into abutment with the filling head outlet. The container is filled and subsequently while the container is still in abutment with the filling head it is heat sealed. The container is then removed.Type: GrantFiled: January 11, 1982Date of Patent: May 28, 1985Assignee: Wrightcel LimitedInventor: Robert Brunswick
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Patent number: 4519607Abstract: A games table comprising a first games playing surface and a second table top surface normally disposed above the games playing surface, the second table top surface being formed by two panel elements or two groups of panel elements connected to the games playing surface whereby the panel elements can be moved bodily and pivoted to a non-vertical position adjacent to and substantially below the level of the games playing surface, and an elevating mechanism being provided to enable the games playing surface to be moved to a level suitable for use as a games table.Type: GrantFiled: July 21, 1982Date of Patent: May 28, 1985Assignee: Prestige Billiards Pty. Ltd.Inventor: Alfred G. Schill
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Patent number: 4512768Abstract: A syringe article, for analgesic puncture with twin needles, the syringe containing a thin walled plastic reservoir filled with local anesthetic mounted under a collapsible roof and located at the distal end of the syringe barrel adjacent the twin needles, so that depression of the syringe plunger compresses sharp projections against the reservoir which is then ruptured to release the local anesthetic for injection into the flesh which will be punctured, the local anesthetic being passed through pores in the wall of an outer positioned needle into the patient's flesh.Type: GrantFiled: February 15, 1983Date of Patent: April 23, 1985Inventor: Avvari Rangaswamy
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Patent number: 4508781Abstract: A process for the surface fluorination of a carbon containing synthetic or natural polymer capable of forming a carbon-fluoride bond on fluorination, in a glow discharge reactor, utilizing inorganic fluorides as the fluorination agent.Type: GrantFiled: June 7, 1982Date of Patent: April 2, 1985Assignee: The United States of America as represented by the Secretary of AgricultureInventors: Toshiharu Yagi, Attila E. Pavlath
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Patent number: 4503721Abstract: A valve actuator for a dosing pump for a paint toning machine, wherein the dosing pumps (3) are mounted in a sled movable with respect to the frame of the machine and a dosing mechanism (21-24) displacing the pistons (4) of the dosing pumps and an actuator rotating the valves (8) of the dosing pumps are mounted in the frame. The actuator comprises a crank (13) mounted rotatably in the frame and two cam rods (15, 16) which are mounted pivotally in the frame and of which one (15) is located in the path of movement of the crank and the other (16) is provided with a transfer mechanism (26) for transferring the cam rod optionally into and out of the path of movement of the crank.Type: GrantFiled: February 8, 1983Date of Patent: March 12, 1985Assignee: Oy W. Rosenlew ABInventors: Esko Hietanen, Pentti Airaksinen
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Patent number: 4491009Abstract: A method and electronic circuit for measuring the density of substances flowing through an oscillating container densimeter that measures the temperature of the oscillating container to determine the temperature coefficient of the spring constant about the axis of oscillation.Type: GrantFiled: June 10, 1983Date of Patent: January 1, 1985Assignee: Micro Motion, Inc.Inventor: James R. Ruesch
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Patent number: 4491025Abstract: A flow meter apparatus for measuring the mass flow rates of fluids passed through two essentially parallel, cantilever mounted U-shaped flow tubes where, instead of the fluid serially passing through one of the U-shaped flow tubes and then through the second U-shaped flow tube, the fluid is essentially evenly divided and half of the fluid is passed through one U-shaped flow tube and the other half of the fluid is passed through the other U-shaped flow tube. The two U-shaped flow tubes are sinusoidally driven as the tines of a tuning fork, and when a fluid is passed through the oscillating U-shaped flow tubes Coriolis forces are generated which torsionally deflect the U-shaped flow tubes. Such torsional deflections are a function of the mass flow rate of the fluid passing through the two U-shaped flow tubes.Type: GrantFiled: November 3, 1982Date of Patent: January 1, 1985Assignee: Micro Motion, Inc.Inventors: James E. Smith, Donald R. Cage
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Patent number: 4485584Abstract: An ignitable kindling material and cooking fuel which is dry to the touch, non-tacky and essentially odor free is provided by impregnating a combustible cellulosic matrix, such as a wood fiber insulating board, with a liquid impregnant made up of specified proportions of a paraffin wax, a motor oil, a mineral oil and animal fat.Type: GrantFiled: August 12, 1983Date of Patent: December 4, 1984Assignee: Raulerson Products Manufacturing Company, Inc.Inventors: James Raulerson, Thomas J. Raulerson
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Patent number: D276161Type: GrantFiled: July 8, 1981Date of Patent: October 30, 1984Assignee: Valon Kone OyInventor: Veikko L. Valo