Patents Assigned to Research Development
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Patent number: 4937114Abstract: An aluminium or tinned-steel can for carbonated beverage is protected by a low-temperature curing lacquer.The lacquer is applied as an aqueous coating formulation of ethylene maleic acid copolymer (containing KOH to promote decarboxylation) plus some poly(acrylic acid) to promote coherent-film-forming ability plus a diol cross-linking agent to reduce the water-sensitivity.The coated substrate is heat-cured at the relatively low temperature of 200.degree. C. for 10 minutes.Type: GrantFiled: May 8, 1989Date of Patent: June 26, 1990Assignee: National Research Development CorporationInventors: Eleanor A. Wasson, John W. Nicholson
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Patent number: 4936390Abstract: A three-point hitch mounted in-row tiller has a conventional three-point hitch mounted frame member with an outrigger arm pivotally mounted to the frame member in a manner that accommodates pivotal movement of the outrigger in relation to the frame member about two orthogonal axes. Pivotal movement about one of the axes causes tilting of a working tool mounted on the outrigger arm, and pivotal movement about the other axis causes vertical lifting and depth control of the working tool. Various working tool embodiments, including several with flexible teeth, and a mechanical/hydraulic sensor apparatus are also included.Type: GrantFiled: December 5, 1986Date of Patent: June 26, 1990Assignee: Town & Country Research & Development, Inc.Inventors: Jack F. Anderson, Jeffrey N. Anderson
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Patent number: 4935908Abstract: An arrangement for finding the direction of a sound in a medium has a thin shell structure having a circular symmetry. The structure can flex in response to incident sound energy from the medium to perturb the form of the structure. A membrane of a piezo-electric material with an anisotropic piezo-electric response to distortion is arranged to be distorted by the perturbation of the thin shell structure. The response of the membrane to this perturbation permits the direction of the incident sound to be indicated. The membrane can be of polyvinylidene difluoride with anisotropic properties. The membrane may be formed into a "dome" for example by fluid pressure inside a hemispherical shell closed by the membrane.Type: GrantFiled: September 27, 1989Date of Patent: June 19, 1990Assignee: National Research Development CorporationInventors: Martyn D. Bull, Philip G. Harper, Stuart I. Jardine, David M. Treherne
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Patent number: 4935691Abstract: A phase switched power controller connects a load to a alternating current source for a proportion of each half cycle selected by the user. A first full wave rectifier is connected to the voltage source and produces an unfiltered full wave rectified output signal varying between zero and a predetermined peak. A low pass filtered full wave rectified signal is preferably obtained from a second full wave rectifier, the filtered voltage and unfiltered voltage being applied as inputs to a voltage comparator, the output of which triggers a timer. The timer determines the phase delay until a further pulse is triggered for activating a triac, applying power to the load during the remainder of each half cycle.Type: GrantFiled: July 12, 1989Date of Patent: June 19, 1990Assignee: Dodge-Romig Research & Development, IncorporatedInventor: Luis A. Lamar
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Patent number: 4933059Abstract: An anisotropic rare earth magnet material is provided by a sputtering technique. The material has structural and magnetic anisotropy. Its composition is represented essentially by the following formula:(R.sub.1-a O.sub.a).sub.b M.sub.1-bwherein R means at least one of rare earth metal elements of Y and the lanthanide series of La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu or a combination of Hf and at least one of the foregoing rare earth metal elements, M denotes Co or a combination of Co and at least one of Fe, Cu, Zr, Ti, Al and B, a is not greater than 0.05 (a.ltoreq.0.05), and b ranges from 0.1 to 0.5 (b=0.1-0.5).Type: GrantFiled: February 17, 1989Date of Patent: June 12, 1990Assignees: Research Development Corporation of Japan, Tokin CorporationInventors: Eishu Sugawara, Taketoshi Nakayama, Tsuyoshi Masumoto
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Patent number: 4933294Abstract: Neoplastic and other diseases can be diagnosed by assaying a human test sample e.g. body fluid, tissue or cultured tumor explant cells, for structurally altered or abnormally expressed growth factor receptors or for the RNA transcripts of genes which encode them. For example, the assay can be for truncated EGF receptor having at least a portion of its mature amino terminus deleted. Antibodies, capable of binding a predetermined amino acid sequence within the EGF receptor, are also useful in diagnosis and therapy as are conjugates of an immunogenic polymer bound to a polypeptide fragment of EGF receptor. DNA and RNA encoding EGF receptor or fragments thereof are also described.Type: GrantFiled: September 30, 1985Date of Patent: June 12, 1990Assignees: ICRF Patents Limited, Research & Development Co., Ltd. Yeda, Genentech, Inc.Inventors: Michael D. Waterfield, J. Schlessinger, Axel Ullrich
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Patent number: 4931275Abstract: There are provided anti-tumor vaccines which contain as active ingredient tumor cells which have been pressure treated so as to augment their antigenic properties, tumor cells treated with cholesteryl hemisuccinate (CHS) and subsequently pressure treated, or plasma membranes from either of, or membrane proteins shed from either of these cells, or a combination of any of these. According to another embodiment, tumor cells are treated with cholesteryl hemisuccinate or by the application and release of pressure, and subsequently with a cross-linking agent. Such cells, plasma membranes obtained from these and proteins shed from the surface of these are effective active ingredients in anti-tumor vaccines.Type: GrantFiled: May 24, 1988Date of Patent: June 5, 1990Assignee: Yeda Research & Development Co., Ltd.Inventors: Meir Shinitzky, Irun R. Cohen
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Patent number: 4931270Abstract: Abnormalitites in the distribution of a dopamine D.sub.2 receptors in humans and other mammals are detected by(1) administering to a human or other mammal an amount of a .sup.18 F-radiolabelled compound sufficient to be detected by a positron emission sensitive means for imaging, said compound having affinity for said receptors selected from the group consisting of optically active or racemic compounds represented by the general formula: ##STR1## (2) forming at least one image showing the distribution of the radiolabelled compound within the human or other mammal using a positron emission-sensitive means for imaging; and(3) determining normality of the concentrations or distribution by comparing the image with an image showing the normal concentrations and distribution of the receptors in humans or mammals of the same species wherein R1-R4, n and m- are as set forth in the specification.Type: GrantFiled: July 7, 1988Date of Patent: June 5, 1990Assignee: Nelson Research & DevelopmentInventors: Alan S. Horn, Paul A. Jerabek, James V. Peck
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Patent number: 4929420Abstract: The invention provides an alloy useful particularly in dentistry.The alloy of the invention in its broadest aspect contains from about 0.05 to about 8% by weight of indium and from about 8 to about 20% by weight of iridium, the balance essentially being platinum. Preferably, however, the allow consists essentially of platinum, iridium and indium, and contains from about 0.05 to about 8% by weight of indium, with the weight ratio of platinum to iridium being from about 84 to about 86:15.The alloy is useful in forming dental prostheses with aluminous porcelain or with a castable ceramic.Type: GrantFiled: January 23, 1989Date of Patent: May 29, 1990Assignee: The National Research Development CorporationInventor: Peter Cook
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Patent number: 4926749Abstract: In a compression device 100 (FIG. 1), two shafts 4,6 carry double lobed packers 5,101 which force crop through a throat formed by static elements 7,8 into a chamber 9. The packers are intermeshed and angularly displaced around their shafts to reduce the driving torque of the device.Type: GrantFiled: October 10, 1989Date of Patent: May 22, 1990Assignee: National Research Development CorporationInventors: Michael A. Neale, Wilfred E. Klinner
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Patent number: 4925516Abstract: An electric-knife cleaning device useful in connection with surgery comprising a cleaning head mounted on a laminated base, the bottom lamina of which is a removable pull-off sheet adhered to said base by a tacky adhesive which remains on said base when said pull-off sheet is removed and is then operative to adhere said base to a surface, and the top lamina of which comprises means for mounting said cleaning head on said base, whereby the bottom lamina can be removed and the device adhered to a surface adjacent the situs of the surgery in a position convenient for cleaning the knife during the surgery, is disclosed, as well as a method for its production and use.Type: GrantFiled: January 10, 1989Date of Patent: May 15, 1990Assignee: International Research & Development CorporationInventors: James L. Phillips, Dale W. Richardson, Lawrence M. Silverman
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Patent number: 4925544Abstract: An electrochemical sensor comprising an electrolyte and an analyte separated by a selectively permeable membrane preferably characterized in that the electrolyte is an electrically conductive solid comprising a homogeneous dispersion of a polymeric matrix phase and an electrically conductive salt and substantially free of water. Preferably the polymeric matrix phase is plasticized, the plasticizer forming a continuous phase in which the conductive salt is dissolved. The sensor is used, for example, for sensing and measuring gases especially in transcutaneous measurement of blood gases.Type: GrantFiled: February 23, 1989Date of Patent: May 15, 1990Assignee: National Research Development CorporationInventor: Lionel S. Goldring
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Patent number: 4925742Abstract: A thin film having a large high Kerr rotation angle is formed of a compound having a composition represented by the following formula (I):J.sub.x L.sub.y Q.sub.(100-x-y) (I)whereinJ: at least one of F, Cl, Br and I;L: at least one of B, C, Al, Si, P, As, Sb, Bi, Se, Te, Ti, V, Cr, Mn, Ni, Ga, Ge, Zr, Nb and Mo;Q: at least one of Fe and Co;x: a value of 3-80; andy: a value satisfying the following equation (II):3.ltoreq.x+y.ltoreq.80 (II)The film is produced by reacting a halogen or halogen-containing gas, which has occurred as a result of decomposition of a halogen compound, with a metal plasma or halogen-containing metal plasma and allowing the resultant component to deposit as a thin film on a substrate.Type: GrantFiled: October 18, 1988Date of Patent: May 15, 1990Assignees: Research Development Corporation of Japan, Tokin CorporationInventors: Eishu Sugawara, Taketoshi Nakayama, Tsuyoshi Masumoto
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Patent number: 4926479Abstract: In a multiparty verification system, a prover and a verifier are coupled to rocess respective outputs to provide a system output such as an identification verification. The prover is formed of plural units which share confidential information used to encrypt information carried by the prover. Communication between the prover units is prevented. The first prover unit encrypts the information based on additional information received from the verifier and transfers the encrypted information to the verifier. Subsequently, the verifier obtains from the second prover unit the shared confidential information required to decrypt a subset of the transmitted encrypted information.Type: GrantFiled: April 29, 1988Date of Patent: May 15, 1990Assignees: Massachusetts Institute of Technology, Yissum Research Development Company of the Hebrew University of JerusalemInventors: Shafi Goldwasser, Joseph Kilian, Avi Wigderson, Michael Ben-Or
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Patent number: 4924711Abstract: A force transducer is described which uses current pulses in a conductor to generate acoustic pulses in a magnetostrictive delay line. The pulses are sensed by a coil around the line. The magnitude of the pulses is modified by force applied to the transducer either by changing the shielding effect of a magnetoelastic ribbon (between the conductor and the delay line) by applying a force to be sensed thereto, or in another alternative by modifying the distance between the conductor and the delay line in accordance with applied force. The transducers are economic and easily assembled into arrays for sensing stress distribution in two dimensions because the common conductors can be used for the columns of the array and common delay lines can be used for the array rows. Each column then has a common current-pulse generator and each row has a common detector coil. A similar technique may be used for sensing the spatial distribution of other parameters such as temperature, magnetic field or displacement.Type: GrantFiled: February 10, 1989Date of Patent: May 15, 1990Assignee: National Research Development CorporationInventor: Robert E. Reilly
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Patent number: 4923368Abstract: The invention relates to a water driven turbine. The turbine has a central drum rotatable on a horizontal shaft, the drum having a series of buckets about its periphery, the outer lips of each bucket being such as to delay discharge of water from each bucket until the bucket has a almost reached bottom dead center. The turbine has an inlet with a relatively narrow upstream opening and a relatively broad downstream opening, the inlet spreading the flow of water along substantially the length of each bucket. The turbine may be coupled to a pump which pumps water from a reservoir of water that has passed through the pump. Delivery of water can be achieved to unexpectedly high levels using the turbine/pump combination.Type: GrantFiled: June 20, 1989Date of Patent: May 8, 1990Assignee: Martin Research & Development Ltd.Inventor: George R. Martin
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Patent number: 4922368Abstract: Discriminating circuits are coupled to receive signals from a protected transmission circuit. Each discriminating circuit also receives from a direction detector signals indicating whether any fault which occurs is forward of, or reverse of, a predetermined point. The discriminating circuit is arranged to produce an output signal to trip a circuit breaker of the protected circuit only if a fault occurs within the protected circuit. In this respect, the discriminating circuit only outputs a trip signal if it receives within the same time period both a signal from the direction detector indicating that the fault is appropriately located, and high frequency signals from the protected circuit. The system thus utilizes the high frequency noise invariably generated when faults arise in transmission circuits.Type: GrantFiled: November 23, 1988Date of Patent: May 1, 1990Assignee: National Research Development CorporationInventor: Allan T. Johns
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Patent number: 4920400Abstract: A semiconductor device comprising a pair of p-type regions facing each other, a pair of n-type regions facing each other, and a nearly intrinsic region connecting these regions, thereby establishing a hole current path connecting the p-type regions and an electron current path connecting the n-type regions. Each of the hole current path and the electron current path has a transfer function which is a function of structural parameters of the device and the applied biases. The electron current path and the hole current path can provide a complementary pair of outputs.Type: GrantFiled: January 18, 1989Date of Patent: April 24, 1990Assignees: Research Development Corporation of Japan, Barsony IstvanInventor: Istyan Barsony
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Patent number: 4920101Abstract: This invention provides compositions comprising a physiologically-active agent and a compound represented by the general formula ##STR1## wherein X may represent sulfur, oxygen or 2 hydrogen radicals; Y may represent --CH.sub.2 --, --NH-- or oxygen; n and m are integers of from 1 to 3; p is an integer of from 3 to 17; q is 2, 4, 6 or 8; wherein p.gtoreq.9; and R' is selected from the group consisting of H, a lower alkyl group having from 1 to 4 carbon atoms, phenyl, lower alkyl or halogen substituted phenyl, acetamido, halogen, piperidinyl, lower alkyl or halogen substituted piperidinyl, carbalkoxy, carboxamide, and alkanoyl. These compositions are useful in topical or transdermal applications of the physiologically-active agent.Type: GrantFiled: September 30, 1987Date of Patent: April 24, 1990Assignee: Nelson Research & Development Co.Inventors: Gevork Minaskanian, James V. Peck
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Patent number: 4919211Abstract: A crumbler roller device 10 comprises two co-axial soil-engaging rotors 12, 13 mounted one within the other and drive means operative to drive the inner rotor 12 at a different rotational speed to the outer rotor 13.Type: GrantFiled: July 29, 1988Date of Patent: April 24, 1990Assignee: National Research Development CorporationInventor: Richard E. Cope