Patents Examined by J. Silbermann
  • Patent number: 5313729
    Abstract: An LED display unit comprises a printed circuit board. A plurality of LEDs are packaged on the printed circuit board. Portions of the respective LEDs except for light emitting sections thereof are sealed by a resin. The LEDs having the portions thereof sealed by the resin are received in a case. A plurality of the cases are arranged on the attaching plate, to form a large-sized display panel. The case has a rear face thereof which is brought to a configuration in which spaces exist between the attaching plate and portions of the case except for a fixing portion thereof to the attaching plate and a connector for wiring.
    Type: Grant
    Filed: April 21, 1992
    Date of Patent: May 24, 1994
    Assignee: Stanley Electric Co., Ltd.
    Inventors: Hiroo Sakai, Shingo Otobe, Hideo Tamura, Toshimi Kamikawa
  • Patent number: 5310494
    Abstract: A method and composition for control of in-transit and residual dust from coal or coke is provided. The method involves spraying the coal or coke with fluid, preferably water, containing an additive comprised of approximately 90-99% by weight of lignosulfonate and 1-10% by weight of polyacrylic acid. Sufficient fluid should be used to coat the coal or coke. The amount of additive necessary to prevent dusting will vary according to the conditions to which the coke or coal will be subjected.
    Type: Grant
    Filed: April 29, 1992
    Date of Patent: May 10, 1994
    Assignee: Natec Resources, Inc.
    Inventor: Robert P. Bennett
  • Patent number: 5310492
    Abstract: Disclosed is a refrigerating machine oil composition, comprising a base oil and a metal salt of a carboxylic aid having from 3 to 60 carbon atoms.The refrigerating machine oil (lubricating oil) of the present invention is very well miscible with hydrogen-containing Flon refrigerants such as Flon 134a, achieves an excellent lubrication performance and is good enough to bring forth marked improvement of a wear resistance, particularly a wear resistance of aluminum-steel friction surfaces.
    Type: Grant
    Filed: March 27, 1992
    Date of Patent: May 10, 1994
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Hiromichi Seiki, Masato Kaneko, Hideo Kanamori
  • Patent number: 5308515
    Abstract: A powdered chemical mixture for lubricating photoreceptors, wiper blades, doctor blades and slide seals used on dry toner printers, copiers, and facsimile machines. The dry powder comprises a mica group mineral wet-ground to attain cold, dry lubricity, resiliency and particle alignment. The wet-ground mica-group mineral may be coated by calcium stearate to increase lubricity and reduce static electricity from the photoreceptor and blades during operation of the machine. The optimum powder would be comprised of 99% by weight mica-group mineral and 1% by weight calcium stearate. Muscovite and phlogopite are mica-group minerals suggested for use in the lubricating powder. The calcium stearate could also be used with powdered lubricants other than mica to reduce static electricity during operation of the machines.
    Type: Grant
    Filed: July 17, 1992
    Date of Patent: May 3, 1994
    Assignee: Steven Bruce Michlin
    Inventors: Steven B. Michlin, John P. Wagnon
  • Patent number: 5307580
    Abstract: A safety display sign includes a wire post member having spaced apart wire legs extending from a rounded end portion. The wire legs extend through the channels of a corrugated polyethylene sign panel, and project therefrom a sufficient distance to permit secure fixation in the ground. An extruded polyethylene base member is provided with two slotted passages integrally formed at opposite side edges of the base member to receive and grip the wire legs in a unitary assembly which prevents the sign panel from sliding along the length of the wire legs. The polyethylene base is positioned along the length of the wire legs and is urged against the edge of the sign panel by the ground or other supporting surface to secure the sign panel at the top portion of the post.
    Type: Grant
    Filed: August 10, 1992
    Date of Patent: May 3, 1994
    Inventor: Kenneth R. Farmer
  • Patent number: 5304316
    Abstract: A deinking agent for regenerating waste paper, which comprises a reaction product obtained by reacting a compound having an OH group, which is represented by the following (A) or (B) with a dicarboxylic acid or an anhydride thereof as an active ingredient:(A) a compound obtained by adding ethylene oxide and propylene oxide to a higher fatty acid having 8 to 22 carbon atoms in such a manner as to control the molar ratio of ethylene oxide/propylene oxide to from 1 to 4 and to control the total amount of the added ethylene oxide and propylene oxide to from 10 to 50 moles on average; or(B) an incomplete ester of a polyhydric alcohol, to which ethylene oxide and propylene oxide have been added in such a manner as to control the molar ratio of ethylene oxide/propylene oxide to from 1 to 4 and to control the total amount of the added ethylene oxide and propylene oxide to from 10 to 50 moles per OH group on average, and a higher fatty acid having 8 to 22 carbon atoms;is disclosed.
    Type: Grant
    Filed: September 18, 1992
    Date of Patent: April 19, 1994
    Assignee: Kao Corporation
    Inventors: Hideaki Urushibata, Koji Hamaguchi, Akio Kimura, Shigetoshi Suzue
  • Patent number: 5302308
    Abstract: Method for inhibiting dust emissions from hot (>120.degree. F.) substrates are provided for. The method comprise adding to the substrate an aqueous solution or formed solution of polyethylene oxide or a polyethylene oxide derivative.
    Type: Grant
    Filed: August 24, 1992
    Date of Patent: April 12, 1994
    Assignee: Betz Laboratories, Inc.
    Inventor: Donald C. Roe
  • Patent number: 5302292
    Abstract: The disclosure teaches a water treatment composition and method especially useful with respect to groundwater treatment upstream of an air stripper facility. The composition includes a chelating agent such as citric acid and/or ethylenediaminetetraacetic acid and a sequestration agent such as diethylenetriamine-methylenephosphoric acid.
    Type: Grant
    Filed: April 27, 1992
    Date of Patent: April 12, 1994
    Assignee: Jamestown Chemical Company, Inc.
    Inventors: Kenneth Soeder, Mitchel Helfeld
  • Patent number: 5302313
    Abstract: A solvent consisting essentially of a compound of the formula:CH.sub.a Cl.sub.b F.sub.c CF.sub.2 CH.sub.x Cl.sub.y F.sub.z(I)wherein a+b+c=3, x+y+z=3, a+x.gtoreq.1, b+y.gtoreq.1, and 0.ltoreq.a, b, c, x, y, z.ltoreq.
    Type: Grant
    Filed: December 1, 1992
    Date of Patent: April 12, 1994
    Assignee: Asahi Glass Company Ltd.
    Inventors: Teruo Asano, Naohiro Watanabe, Kazuki Jinushi, Shunichi Samejima
  • Patent number: 5301446
    Abstract: A wind-actuated warning device which mounts onto a vehicle to provide an alert or warning to the operator of a vehicular condition which requires the operator to exert special attention and appropriately respond to the condition. Examples of such conditions include a high profile condition, a roof top carrier or a reminder to deploy landing gear on an aircraft. The warning device has a base member with coupling for mounting the base member onto the vehicle. The warning device further has a cover member pivotally mounted to the base member. The cover member has a frontal and a rearward surface with a warning or other indicator associated with the rearward surface of the cover. The cover is biased against the base, which is overcome by wind loading to pivotally collapse the cover onto the base and provide a substantially flat elevational profile of the warning device on the vehicle.
    Type: Grant
    Filed: June 7, 1993
    Date of Patent: April 12, 1994
    Inventor: James A. Kurtz
  • Patent number: 5297352
    Abstract: A decorative glass body for viewing objects that are disposed on the base surface of the decorative glass body but seem to be floating inside the glass.
    Type: Grant
    Filed: August 5, 1993
    Date of Patent: March 29, 1994
    Assignee: D. Swarovski & Co.
    Inventor: Martin Poll
  • Patent number: 5298179
    Abstract: There is provided a water absorbent comprising a magnetic material and a highly water-absorbable resin. Said water absorbent is contacted with a moisture-containing powder and the water absorbent that has absorbed the moisture is then separated from the powder by means of a magnet, whereby the moisture content of the moisture-containing powder can be decreased. Said water absorbent is produced by forming a mixture composed of the highly water-absorbable resin, water and the magnetic material and then drying said mixture.
    Type: Grant
    Filed: July 3, 1991
    Date of Patent: March 29, 1994
    Assignee: Nippon Zeon Co., Ltd.
    Inventors: Keizo Ukita, Shinji Hirota, Masaaki Inoue
  • Patent number: 5298186
    Abstract: A composition and method of treating paint spray booth water to detackify organic solvent based paint particles. The composition comprises a melamine polymer obtained from the reaction of melamine, aldehyde and an amine selected from the group consisting of dicyandiamide and glycine. These melamine polymers may be used in combination with a polyacrylamide, which combination exhibits surprising and unexpected effects when used to detackify organic solvent paint particles.
    Type: Grant
    Filed: September 11, 1992
    Date of Patent: March 29, 1994
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: David B. Mitchell, Thomas P. Curran, Wun T. Tai, Gary G. Engstrom
  • Patent number: 5298039
    Abstract: Fuels for gasoline engines contain a combination of a nitrogen-containing detergent component and an alkoxylate as a carrier oil component, the alkoxylate being a dialkylphenol-initiated propoxylate.
    Type: Grant
    Filed: December 18, 1992
    Date of Patent: March 29, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Juergen Mohr, Knut Oppenlaender, Juergen Thomas, Peter Schreyer
  • Patent number: 5294230
    Abstract: Hair is waved or straightened by maintaining it in tightly curled or in straightened configuration in contact with an aqueous waving lotion containing sulfite, bisulfite, or hydrosulfite together with a water-soluble mercaptan, at a molar ratio of 5:1 to 1:7.5, rebuilding with an aqueous lotion at pH 7 to 12 free from cross-linking, oxidizing, or reducing agents, and subsequently applying a neutralizer solution. Minimal damage to the hair results from use of the specified molar ratio. When waving hair, an optional additional step between cross-linking and neutralizing comprises maintaining the rebuilt hair in stress-free condition in contact with the ambient atmosphere to permit the curled hair to relax to the desired extent.
    Type: Grant
    Filed: February 6, 1992
    Date of Patent: March 15, 1994
    Assignee: The Gillette Company
    Inventors: Maw-Sheng Wu, Mary A. Pesce
  • Patent number: 5290465
    Abstract: Neopolyol derivatives in which at least one of the hydroxyl groups is replaced with a substituent that corresponds to the formula --O--R--C(O)--OR' wherein R is an alkylene group containing 2-5 carbons and R' is a hydrocarbyl or predominantly hydrocarbyl group containing 1-30 carbons are oils which have utility as lubricants. Those in which R' is a hydrocarbyl group of 1-10 carbons are completely miscible with 1,1,1,2 -tetrafluoroethane (R-134a), a refrigerant.
    Type: Grant
    Filed: May 22, 1992
    Date of Patent: March 1, 1994
    Assignee: Ethyl Corporation
    Inventor: Mahmood Sabahi
  • Patent number: 5286399
    Abstract: Floor sweeping compound of the type conventionally containing sawdust, sand, and petroleum oil is modified by substituting, for the petroleum oil, inexpensive acid oils (or their salts) obtained as byproducts during the process of refining plant-derived oil, thereby rendering the compound both biodegradable and less expensive.
    Type: Grant
    Filed: August 17, 1992
    Date of Patent: February 15, 1994
    Assignee: Akona Corp.
    Inventors: George E. Howell, Charles D. Wright
  • Patent number: 5282995
    Abstract: A method and composition for removing barium and strontium sulfate scale deposits. The composition comprises an aqueous solution having a pH of about 8 to about 14, an EDTA or DTPA chelant, and a catalyst or synergist. Preferred chelants comprise diethylenetriaminepentaacetic acid (DTPA) or ethylenediaminetetraacetic acid (EDTA or alkali salts thereof. Anions of organic and inorganic acids comprise the catalyst. Catalysts which can be used include fluoride, oxalate, persulfate, dithionate, hypochlorite and formate anions. When the solution containing the composition is contacted with a surface containing a scale deposit, the deposit dissolves substantially more scale quicker than heretofore possible.
    Type: Grant
    Filed: September 27, 1991
    Date of Patent: February 1, 1994
    Assignee: Mobil Oil Corporation
    Inventors: James M. Paul, Richard L. Morris
  • Patent number: 5281267
    Abstract: A natural composition for preventing the growth of barnacles, grass, worms and the like on the hull of a boat or ship. The natural, powdered crustacean shell-based composition makes it easy to remove slime and scum formation and is safe to use on all boats or ships, including aluminum and steel. The natural composition incorporates pulverized, powdered, complete crustacean shells as the active ingredient, namely powdered mussel shells or the like.
    Type: Grant
    Filed: November 12, 1992
    Date of Patent: January 25, 1994
    Inventor: Jack Jones
  • Patent number: 5279750
    Abstract: A squeeze casting powdery mold releasing agent according to this invention consists of a granulated or powdery mixture of a lubricant, an organic polymer and a metal soap; wherein the lubricant is coated with the organic polymer or the metal soap. Therefore, the mold releasing agent allows productions of castings of high quality, in a squeeze casting work, with good workability and without worsening environmental situations.
    Type: Grant
    Filed: July 21, 1992
    Date of Patent: January 18, 1994
    Assignee: Hanano Commercial Co., Ltd.
    Inventor: Takashi Hanano