Patents Examined by Nancy A. B. Swisher
  • Patent number: 4840617
    Abstract: A cerebral catheterization apparatus for delivering oxygenated nutrient to or from the cerebro-spinal fluid pathway of a patient suspected of suffering from ischemic central nervous system tissue is disclosed. The apparatus comprises catheter means for providing a delivery pathway for an oxygenated nutrient to the lateral ventricle of the brain, which delivery pathway comprises an inlet and outlet; guide means, mating with the catheter means, for directing the catheter means toward the lateral ventricle; and a harness, on which the guide means is mounted, which is positionable with respect to the patient's head such that the catheter means may be reliably inserted into the lateral ventricle.
    Type: Grant
    Filed: August 24, 1988
    Date of Patent: June 20, 1989
    Assignee: Thomas Jefferson University
    Inventor: Jewell L. Osterholm
  • Patent number: 4839205
    Abstract: A wire sheave particularly adapted for magnet wire coating apparatus. The sheave has an outer radial structure with an outer surface containing a wire groove. The outer radial structure also contains a chamber suitable for containing a liquid or gas. The apparatus is used to preheat wire before it passes through the coating solution.
    Type: Grant
    Filed: July 27, 1987
    Date of Patent: June 13, 1989
    Assignee: Essex Group, Inc.
    Inventors: Paul E. Justus, Mahammad F. Zaman
  • Patent number: 4839245
    Abstract: An erosion resistant article such as a turbine blade having, in use, a surface subject to high angle impingement and a surface subject to low angle impingement, said article comprising a substrate defining said surfaces composed of a refractory metal, titanium alloy, refractory alloy, aluminum alloy, superalloy based on Fe, Co or Ni, stainless steel or ceramic composite, and an erosion-resistant coating of zirconium nitride having an averge grain size of not greater than about 3000 Angstroms applied by physical vapor deposition to said surfaces, said zirconium nitride coating preferably having a ratio of the erosion rate at an impingement angle of 90.degree. to the erosion rate at an impingement angle of 20.degree. of not greater than about 1.5 and having an erosion rate at all impingement angles from 20.degree. to 90.degree. at least about two times less than that of said substrate at the same impingement angles.
    Type: Grant
    Filed: February 22, 1988
    Date of Patent: June 13, 1989
    Assignee: Union Carbide Corporation
    Inventors: Jiinjen A. Sue, Harden H. Troue
  • Patent number: 4837061
    Abstract: The invention relates to a laminated tamper-evident structure which exhibits an irreversible color change upon delamination. The structure includes a laminate of at least two layers capable of generating a color by a light interference and absorption phenomenon that requires direct and intimate contact between an adjacent two of the layers. The strength of attachment among the layers of the laminate is such that the laminate can be uniformly and reliably peeled apart at the interface between the adjacent two layers. An overlying flexible strip of transparent or translucent material is adhered to the laminate to facilitate the peeling operation. Upon peeling apart the laminate, the generated color is irreversibly lost, thus providing evidence that the structure has been tampered with. The structure can be incorporated into a variety of closable articles or products to provide evidence of opening or tampering.
    Type: Grant
    Filed: August 10, 1987
    Date of Patent: June 6, 1989
    Assignee: Alcan International Limited
    Inventors: Paul Smits, Aron M. Rosenfeld, Howard F. DeFerrari
  • Patent number: 4835062
    Abstract: A protective coating for metallic substrates consists of a plurality of layers having a total thickness ranging from 0.1 to 10.mu., an individual thickness for each layer ranging from 0.5 to 40 nm, and a total number of layers which does not exceed 20,000, each layer being comprised of one kind of at least two kinds of crystalline hard substances and being arranged in a sequentially alternating order with respect to the others, the crystalline hard substances having phase interfaces with respect to one another which are at least crystallographically partially coherent. In an alternate embodiment, the protective coating is a single layer which is a superfinely dispersed mixture of the crystalline hard substances.
    Type: Grant
    Filed: March 5, 1986
    Date of Patent: May 30, 1989
    Assignee: Kernforschungszentrum Karlsruhe GmbH
    Inventor: Helmut Holleck
  • Patent number: 4835050
    Abstract: The invention relates to the use of voltaic cells in both leachable and non-leachable vehicles which is a unique concept. It relates to the use of hard abrasive vehicles. It relates to the use of vehicles that will permit the voltage to provide a current when the circuit is closed. The concept of a multiplicity of voltaic cells generating a voltage within the paint makes it possible to eliminate toxic ingredients such as Copper, Copper salts such as Cuprous Oxide, Mercury and its salts and other toxic ingredients such as Tributyl Tin Oxide with great benefit to the environment. The non-leachable vehicle eliminates or reduces the loss of electromotive force generating within the paint so that the paint is capable of remaining effective for years instead of the usual life of one growing season.
    Type: Grant
    Filed: August 11, 1986
    Date of Patent: May 30, 1989
    Assignee: Clayton and Colleagues, Inc.
    Inventor: Erith T. Clayton
  • Patent number: 4835061
    Abstract: A conductive laminate comprising a substrate (2), an intermedaite layer (3) provided on the substrate (2) and made of an amorphous metallic or semi-metallic oxide, and a transparent conductive layer (4) provided on the intermediate layer (3) and made of a crystalline metal or metallic oxide. The material of the conductive layer (4) is a member selected from among Au, Pd, Cr, Ni, SnO.sub.2, In.sub.2 O.sub.3, ZnO, TiO.sub.2, CdO, CdO--SnO.sub.2, and ITO. The material of the intermediate layer (3) is a member selected from among SnO.sub.2, ITO, SiO.sub.2 and Al.sub.2 O.sub.3. The thickness of the conductive layer (4) is 200 to 10,000 .ANG.. The thickness of the intermediate layer (3) is 80 to 300 .ANG..
    Type: Grant
    Filed: June 18, 1986
    Date of Patent: May 30, 1989
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Tatsuo Ohta, Hideo Watanabe, Mayumi Inaba
  • Patent number: 4835060
    Abstract: An improved electrical connector which has improved durability and stability when exposed to low temperature the connector comprises alternating layers of electrically conductive and non-conductive material. The electrically conductive and non-conductive layers each include a silicone-containing material of the formula: ##STR1## wherein R.sub.1 is methyl, vinyl, or phenyl, R.sub.2 is methyl or vinyl, and X+Y+Z equals 0 to about 2 million.
    Type: Grant
    Filed: September 16, 1987
    Date of Patent: May 30, 1989
    Assignee: Tecknit
    Inventors: Joseph P. Kosiarski, Ming Shen
  • Patent number: 4835033
    Abstract: Armor plate (10) is disclosed as including at least one hardened steel plate (14,18) having triangular holes (16,20) arranged in a repeating pattern. Webs (40,42 and 44,46) are located between the triangular holes to provide lightweight armor without any ballistic gaps. The triangular holes (16,20) are shaped and positioned with respect to each other such that the webs (40,42 and 44,46) are generally straight. Each steel plate disclosed has its associated triangular hole (16,20) provided with the same size and shape as each other which are preferably in the shape of equilateral triangles.
    Type: Grant
    Filed: March 1, 1988
    Date of Patent: May 30, 1989
    Assignee: General Dynamics Land Systems, Inc.
    Inventors: Richard A. Auyer, Robert J. Buccellato, Ernest N. Petrick, Needangalam S. Sridharan
  • Patent number: 4832942
    Abstract: The present disclosure is directed to a touch-effective disinfectant tape suitable for mounting on a substrate facility to enable a user to disinfect his/her hand(s) during use of such facility. This tape can be enclosed in a liquid-proof covering, e.g., shrink sealed package, aluminum or other metal foil, etc., and has an upper perforate tape cover layer, a central liquid disinfectant-containing foam layer, a double adhesive-backed lower layer and a bottom release liner. For application to the substrate, the release liner is removed and the bottom adhesive layer is applied to the door knob, door plate, urinal handle, commode handle, or other surface. When such surface is touched by the hands of the person(s) using such facility, the user's hand(s) are disinfected/sterilized without any conscious effort on the user's part to accomplish such.
    Type: Grant
    Filed: October 21, 1987
    Date of Patent: May 23, 1989
    Inventor: Robert L. Crace
  • Patent number: 4830894
    Abstract: Metal coatings for browning dishes to be used in microwave ovens are obtained by use of plastes of:(a) 50 to 80% by weight of a mixture of(aa) 5 to 70% by weight of a conductive component formed of 5 to 95% by weight ruthenium oxide, and the balance being at least one of silver, palladium, rhodium oxide and/or bismuth oxide,(bb) 30 to 95% by weight of a glass frit(b) 20 to 50% by weight of an organic binder.Coatings which are applied to glass, ceramic and/or vitreous ceramic dishes and cooking vessels are very adherent and in a few minutes reach temperatures of up to 300.degree. C.
    Type: Grant
    Filed: November 30, 1987
    Date of Patent: May 16, 1989
    Inventors: Guy Roche, Gerard Labregere
  • Patent number: 4830913
    Abstract: A fire resistant glazing comprising at least two parallel glass sheets, frame means for separating each of said sheets one from another by a predetermined distance and defining an intermediate space therebetween which is sealed at the periphery of the glass sheets and a hydrogel substantially filling said intermediate space, said hydrogel comprising about 70-90% by weight of water, about 10-30% by weight of a water soluble salt and, as an additive, from about 0.2 to about 2.0% by weight, in relation to the amount of water soluble salt, of a water soluble anticorrosive compound. The anticorrosive compound may be an alkali phosphate, an alkali tungstate or an alkali molybdate.
    Type: Grant
    Filed: August 29, 1986
    Date of Patent: May 16, 1989
    Assignee: Saint-Gobain Vitrage
    Inventors: Gunter Ortmans, Michael Hassiepen
  • Patent number: 4830854
    Abstract: A method is provided of facilitating the removal of foreign objects embedded in skin, generally referred to as splinters, by chemical means. The method involves topically applying, to the skin at a point adjacent to the splinter, such as the point at which the splinter entered the skin, a chemical composition including salicylic acid. The chemical composition may also include an antibiotic to promote healing, and a vehicle, such as petrolatum. When placed in contact with the skin at a point adjacent to the splinter, by a dressing or other carrier secured to the skin, the chemical composition causes desquamation of injured skin scales, epidermal hydration, and diffuse loosening of the embedded splinter.
    Type: Grant
    Filed: December 18, 1987
    Date of Patent: May 16, 1989
    Assignee: James B. Copelan
    Inventor: Russell I. Copelan
  • Patent number: 4830849
    Abstract: A novel system and method for treating ischemic neurologic tissue is disclosed wherein an oxygenated nutrient emulsion is circulated through at least a portion of the cerebospinal pathway. The nutrient emulsion contains an oxygenatable non-aqueous component, an aqueous nutrient component, an emulsification component, and other components which render physiologic acceptability of the nutrient emulsion. Methods for producing the nutrient emulsion and a system for delivering that emulsion to the crebrospinal pathway are also disclosed. Additionally, novel diagnostic methods for diagnosing the physiologic state of hypoxic-ischemic and other diseased neurologic tissue during treatment are provided.
    Type: Grant
    Filed: April 14, 1988
    Date of Patent: May 16, 1989
    Assignee: Thomas Jefferson University
    Inventor: Jewell L. Osterholm
  • Patent number: 4828894
    Abstract: Assemblies of sheets of corrugated plastic board and molded plastic interlock elements providing useful products such as containers. Sheets of corrugated plastic board are interlocked with one another by means of molded plastic connector pieces or strips having receptor slots containing spaced lock ramps. The slots receive a uniform edge of a sheet of corrugated plastic which is provided with spaced slits aligned with the spaced lock ramps. Entry of the sheet edge into the connector slot causes the spaced lock ramps to compress the edge until the aligned slits pass thereover, and the "memory" of the corrugated plastic board causes the edge portion thereof, beyond the slit, to spring back to its original thickness and thereby lock the edge of the plastic board within the slot of the molded plastic connector.
    Type: Grant
    Filed: July 28, 1987
    Date of Patent: May 9, 1989
    Assignee: United States Corrulite Corporation
    Inventor: William Taylor
  • Patent number: 4828902
    Abstract: An extruded article is provided comprising a base element, and at least one rib element attached to the base element along its entire length. The rib element is narrower at its attachment end than at its free end, and is undulated.The article is formed by extruding an extrudable plastic mass having a conformable state and a nonconformable state. The extrusion rate of the free end of the rib element is sufficiently faster than that of the base element. The free end of the rib element will therefore undulate as the structure is extruded. The free end of the rib element is permitted to undulate without distortion of the base element while the plastic mass is in the conformable state. The plastic mass is then converted to the nonconformable state while maintaining the undulation in the free end of the rib element.
    Type: Grant
    Filed: June 5, 1987
    Date of Patent: May 9, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Dennis G. Welygan, Zemke, Ronald O., Walter W. Pawlikowski, Jr.
  • Patent number: 4826430
    Abstract: The adhesive strength of alumina brackets to acrylic adhesive cements is enhanced by forming an essentially silica coating on the bonding surface of the bracket by the steps of coating said surface with an organosilicon compound such as a silane and then pyrolyzing the organosilicon coating to volatilize the organic components thereof to thereby leave an essentially silica coating.
    Type: Grant
    Filed: May 11, 1988
    Date of Patent: May 2, 1989
    Assignee: Johnson & Johnson Consumer Products, Inc.
    Inventors: Albert C. Chen, Robert D. DeLuca, Robin M. F. Jones, Donald S. Mueller, Mary S. Yeganeh
  • Patent number: 4826734
    Abstract: The invention relates to a coated article comprising a substrate coated with a tungsten carbide-cobalt layer having a strain-to-fracture greater than 4.3.times.10.sup.-3 inch per inch and a Vickers hardness of greater than about 875 HV.sub.0.3.
    Type: Grant
    Filed: March 3, 1988
    Date of Patent: May 2, 1989
    Assignee: Union Carbide Corporation
    Inventors: John E. Jackson, Robert W. Meyerhoff, Marianne O. Price, Jean M. Quets
  • Patent number: 4826718
    Abstract: An electromagnetic shielding laminate and method of producing such a laminate are disclosed. The laminate comprises a first pane of glass, or plastics, which includes an electro-conductive coating on one face thereof. A plastics interlayer, which is adjacent to the coating, is sandwiched between the first pane of glass and a second pane of glass, or plastics. A border of fine electroconductive mesh is located between the interlayer and the electroconductive coating and the mesh is arranged to be in electrical contact with the coating around the periphery of the coated pane.
    Type: Grant
    Filed: February 3, 1988
    Date of Patent: May 2, 1989
    Assignee: Pilkington plc
    Inventors: Mark A. Unsworth, Leslie T. Clarke
  • Patent number: 4826727
    Abstract: Electroluminescent display panels comprising copper sulfide coated Zns:Mn phosphor powder, bonded in an organic dielectric binder, can be provided with increased useful lives by incorporating (1) silver in the copper sulfide coating on the ZnS:Mn phosphor powder, in an amount of 2 to 12%, by weight of the copper in the copper sulfide coating; and (2) elemental sulfur in the dielectric binder, in an amount of 0.1 to 3%, by weight of the phosphor particles. The additives can be used independently or together, preferably together. Methods of incorporating the additives are also disclosed.
    Type: Grant
    Filed: April 14, 1987
    Date of Patent: May 2, 1989
    Assignee: The Cherry Corporation
    Inventor: David Glaser