Patents Examined by Nancy A. B. Swisher
  • Patent number: 4985291
    Abstract: A burner skeleton made of a composition including calcium aluminate and a silica compound. The calcium aluminate contains 15 to 40 wt % of lime, 35 to 80 wt % of alumina and 0.3 to 20 wt % of iron oxide. The composition may include titanium oxide.
    Type: Grant
    Filed: April 2, 1986
    Date of Patent: January 15, 1991
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Atsushi Nishino, Kunio Kimura, Yasuhiro Takeuchi, Koji Ishihara
  • Patent number: 4957440
    Abstract: A process for applying an opaque covering to the metal casting to a metal - ceramic restoration comprising mixing powdered opaque porcelain with molten wax, heating the resultant mixture to a temperature approximately 2.degree. to 5.degree. C. above the melting point of the wax and applying the heated mixture to a metal casting base of the dental restoration.
    Type: Grant
    Filed: August 7, 1986
    Date of Patent: September 18, 1990
    Inventors: Robert B. Hankins, Reid B. Green
  • Patent number: 4943486
    Abstract: A coated article having a silver colored ornamental appearance is provided. The coated article includes a layer of pure, active metallic chromium coated on a substrate and an outer layer of chromium nitride carbide on the chromium layer. Intermediate mixed layers including metallic chromium, chromium nitride, chromium carbide and chromium nitride carbide may also be provided. The plating layers adhere strongly to the substrate. The coated article has good wear and mar resistant properties and a color tone similar to that of stainless steel.
    Type: Grant
    Filed: March 31, 1988
    Date of Patent: July 24, 1990
    Assignee: Seiko Epson Corporation
    Inventor: Akira Uchiyama
  • Patent number: 4933223
    Abstract: A supporting matrix for catalytically active compounds, for use, for example, in catalysts for the catalytic cracking of nitrogen oxides, is constructed of a metal core (1), an intermediate layer (3) of vitreous enamel bonded onto this core, and a porous ceramic cover coating (5) applied to the vitreous enamel intermediate layer.The supporting matrix is made by dipping the metal core into a vitreous enamel slip followed by firing at 800.degree. to 900.degree. C. The enameled metal core is then fired in a second firing to form the ceramic cover coating which represents the actual support for the catalytically active compounds.
    Type: Grant
    Filed: October 17, 1988
    Date of Patent: June 12, 1990
    Assignee: Kraftanlagen AG
    Inventors: Martin Frauenfeld, Kurt Veser
  • Patent number: 4931329
    Abstract: The invention includes a variety of adaptors for forming enclosures and other apparatus from sectioned integral containers. Each adaptor described includes suitable means such as a channel structure for attaching the adaptor to the sectioned open end of an integral container. The adaptor itself may form an enclosure with the container, or, in other embodiments, join the attached, sectioned container portion with another container sectio or other form of closure. The described adaptors are particularly designed for use with cylindrical plastic beverage container assemblies including an integral, dome bottom, cylindrically shaped container and container base piece adapted to receive and support the dome end of the container. A number of plant irrigation devices are described formed by sectioned portions of conventional integral containers and special adaptors of the invention.
    Type: Grant
    Filed: March 12, 1986
    Date of Patent: June 5, 1990
    Inventor: Robert J. Sun
  • Patent number: 4925743
    Abstract: A disposable body warmer comprises a heat generating material and a structure for retaining the material. The retaining structure may be provided on its one side with a reflecting material. The heat generating material consists essentially of at least one oxide of alkaline earth metals such as magnesium oxide with a plate crystal structure and, if necessary, contains an additive such as a salt selected from the group consisting of chlorides and sulphides of alkali metals and alkaline earth metals.
    Type: Grant
    Filed: April 27, 1989
    Date of Patent: May 15, 1990
    Assignees: Nihon Food Culture Co., Ltd., Tateho Chemical Industries Co., Ltd.
    Inventors: Tamehiko Ikeda, Shusuke Yano
  • Patent number: 4925727
    Abstract: A temperature indicating composition is provided for use on a recoverable article so that heating to produce recovery or to activate a heat-activatable sealant can be monitored. The composition comprises a thermochromic colorant in a binder that can be cured by UV radiation. Such a composition can be applied rapidly to polyolefin substrates by printing.
    Type: Grant
    Filed: July 30, 1982
    Date of Patent: May 15, 1990
    Assignee: Raychem Corporation
    Inventors: Andrew V. Brown, Tamar G. Gen, Gary R. Weihe
  • Patent number: 4923699
    Abstract: An ophthalmic treatment system is provided which includes three-dimensional particles of bioerodible material suspended in a liquid carrier or ointment carrier having a pH acceptable to the eye. The particles are at least 0.5 mm in greatest dimension and are not greater than 0.4 mm to 0.7 mm in smallest dimension when disposed in the ocular environment. The treatment system provides reliable, prolonged continuous treatment without irritating the eye.
    Type: Grant
    Filed: June 3, 1988
    Date of Patent: May 8, 1990
    Inventor: Herbert E. Kaufman
  • Patent number: 4921760
    Abstract: An anti-reflection coating with n layers on an optical part substrate made of synthetic resin wherein n is 3, 4, or 5, and the first layer at the air side comprises silicon dioxide (SiO.sub.2), and the n-th layer on the surface of the synthetic resin comprises ceric oxide (CeO.sub.2) is excellent in reflection reducing effect and does not result in the age-based change of the refractive index. And that the very good adhesion of the reflection reducing coating with the substrate results in hardness of layer stripping.Further an anti-reflection coating of the invention has reflection reducing effect in the near-infrared region.
    Type: Grant
    Filed: September 25, 1987
    Date of Patent: May 1, 1990
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Hakuzo Tani, Masaru Okumura
  • Patent number: 4921704
    Abstract: A wound dressing for use with exuding wounds is provided comprising a porous hydrophobic layer adapted to directly contact the wound during use and an adjacent absorbent layer attached to said hydrophobic layer, said hydrophobic layer comprised of an elastic net-like porous reinforcing component substantially completely encapsulated by a soft and elastic hydrophobic gel while retaining the porosity of said reinforcing component, said hydrophobic layer thus including openings which permit wound exudate to pass through said hydrophobic layer to be absorbed by said outer absorbent layer.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: May 1, 1990
    Assignee: Molnlycke AB
    Inventor: Tomas Fabo
  • Patent number: 4919939
    Abstract: A controlled release drug delivery system for placement in the periodontal pocket, gingival sulcus, tooth socket, wound or other cavity within the mouth. The system incorporates drug-containing microparticles in a fluid carrier medium, and is effective in the environment of use for up to 30 days.
    Type: Grant
    Filed: July 8, 1988
    Date of Patent: April 24, 1990
    Assignee: Pharmetrix Corporation
    Inventor: Richard W. Baker
  • Patent number: 4920014
    Abstract: A zirconia film formed on a substrate and having substantially one or two kinds of particular planes such as (200), (111) or (111) planes only oriented in parallel to the surface of the substrate, and a process for preparing it. This zirconia film is dense, and improved in the thermal resistance, thermal insulation properties and corrosion resistance.
    Type: Grant
    Filed: February 26, 1988
    Date of Patent: April 24, 1990
    Assignee: Sumitomo Metal Mining Co., Ltd.
    Inventors: Toshio Hirai, Hisanori Yamane
  • Patent number: 4920006
    Abstract: A multiple-layer architectural coating comprising titanium oxynitride and a metal film is disclosed, as well as a method for its production.
    Type: Grant
    Filed: March 26, 1987
    Date of Patent: April 24, 1990
    Assignee: PPG Industries, Inc.
    Inventor: Frank H. Gillery
  • Patent number: 4915954
    Abstract: A dosage form is disclosed comprising a wall that surrounds a compartment with an exit means in the wall. The compartment comprises a first or fast releasing lamina and a second or short releasing lamina that are delivered through the exit means over two different periods of time.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: April 10, 1990
    Assignee: Alza Corporation
    Inventors: Atul D. Ayer, Maureen L. Jordan, Paul R. Magruder, David E. Edgren
  • Patent number: 4915952
    Abstract: A dosage form is disclosed for delivering the beneficial drugs pseudoephedrine and brompheniramine to a biological environment of use.
    Type: Grant
    Filed: February 15, 1989
    Date of Patent: April 10, 1990
    Assignee: Alza Corporation
    Inventors: Atul D. Ayer, Lawrence G. Hamel
  • Patent number: 4915949
    Abstract: A dispenser is disclosed for delivering tiny pills to an environment of use. The dispenser comprising a wall that surrounds an internal space comprising a first mean in the dispenser for changing from a dispenser state to an environment of use state on leaving the dispenser, tiny pills in the first means, and a second means in the dispenser for aiding in displacing the first means for the dispenser.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: April 10, 1990
    Assignee: Alza Corporation
    Inventors: Patrick S.-L. Wong, Felix Theeuwes, Richard Cortese, James B. Eckenhoff
  • Patent number: 4915953
    Abstract: A dosage form is disclosed comprising a wall that surrounds a compartment with an exit means in the wall. The compartment comprises a first or fast releasing lamina and a second or short releasing lamina that are delivered through the exit means over two different periods of time.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: April 10, 1990
    Assignee: ALZA Corporation
    Inventors: Maureen L. Jordan, Atul D. Ayer, Paul R. Magruder, David E. Edgren
  • Patent number: 4913903
    Abstract: Applications of bioerodible polymers as surgical "leave behind" products in the areas of orthopedic, thoracic, abdominal, ocular and liver/spleen surgery.
    Type: Grant
    Filed: April 10, 1989
    Date of Patent: April 3, 1990
    Assignee: ALZA Corporation
    Inventors: Einar Sudmann, Pieter Bonsen, Eun S. Lee
  • Patent number: 4913904
    Abstract: Ophthalmologic collagen coverings derived from animal eyes and a process for preparing such coverings comprising treatment of a fibrous tunic of an animal eye with an alkali metal hydroxide in a saturated solution of a salt of an alkali metal, followed by neutralization, dissolution in an aqueous solution of an organic acid, purification of the resulting solution of collagen by dialysis against a buffer solution while bringing the solution of collagen to a pH of 4.5 to 7.5 and drying the thus-obtained solution of collagen simultaneously with shaping spherical coverings therefrom.
    Type: Grant
    Filed: December 11, 1987
    Date of Patent: April 3, 1990
    Inventors: Svyatoslav N. Fyodorov, Sergey N. Bagrov, Tatyana S. Amstislavskaya, Irina A. Maklakova, Sergey V. Maslenkov
  • Patent number: 4913905
    Abstract: The present invention relates to a transdermal therapeutic system for the combined administration of oestrogens and gestagens. The therapeutic system consists of:(1) a closed outer layer which is impermeable to the constituents of the active ingredient formulation,(2) a reservoir containing essential constitutents of the active ingredient formulation and, optionally, a membrane,(3) an adhesive layer and(4) a peel-off protective layer on the adhesive layer.The system contains an oestrogen derivative in combination with a synthetic gestagen, and an agent that enhances percutaneous absorption.
    Type: Grant
    Filed: March 25, 1988
    Date of Patent: April 3, 1990
    Assignee: Ciba-Geigy Corporation
    Inventors: Peter Fankhauser, Lotte Schenkel