Patents Represented by Law Firm DeLio and Montgomery
  • Patent number: 4252558
    Abstract: The present invention concerns a method for producing a metal from crude platinum or one of its alloys, comprising very fine particles, in dispersed phase form, of at least one refractory oxide, in the proportion of 0.1 to 0.5% by weight with respect to the weight of the said metal, wherein the molten host metallic material containing the said oxide is sprayed on a target by means of a device delivering a jet of pressurized gas.
    Type: Grant
    Filed: June 15, 1979
    Date of Patent: February 24, 1981
    Assignee: Comptoir Lyon-Alemand-Louyot
    Inventors: Jean-Paul Touboul, Jean-Paul Guerlet
  • Patent number: 4249798
    Abstract: Improvements in an optical system for a compact camera having an improved form of a zoom objective lens arranged substantially enclosed within the housing of the camera which is made compact by a twice folded optical path and a through-the-lens viewing system.
    Type: Grant
    Filed: September 11, 1978
    Date of Patent: February 10, 1981
    Assignee: Vivitar Corporation
    Inventor: Jacob Moskovich
  • Patent number: 4248101
    Abstract: A driving unit having a rotatable driving roller and a driven roller, an elongated member capable of moving longitudinally and independently of the rollers, said elongated member comprising a rigid bar with a rounded upper surface and a strip of flexible material in contact with said surface, said driving roller engaging said flexible strip and said strip remaining substantially tangential to the rounded upper surface regardless of the position of the rotatable driving roller or the interrelationship of the various parts.
    Type: Grant
    Filed: September 8, 1978
    Date of Patent: February 3, 1981
    Assignee: Werbetronic AG
    Inventor: Giovanni Santoro
  • Patent number: 4243377
    Abstract: A fluid flow control valve for use in liquified gas-filled lighters or the like to limit the maximum rate of flow, and corresponding height of flame, as a function of the degree of compression of a filter mass through which the gas must flow, including simple means for varying the degree of compression and a stop to establish a predetermined maximum flow rate.
    Type: Grant
    Filed: March 27, 1978
    Date of Patent: January 6, 1981
    Inventor: Paul Schmid
  • Patent number: 4243381
    Abstract: A smoke conducting apparatus for use particularly with continuous ring furnaces (e.g., Hoffman furnaces) wherein each furnace chamber is connected to the smoke channel, the latter being a metal pipe inclined slightly from horizontal and provided with one or more traps along the length of its bottom surface, each trap containing a removable receptacle, and heating means being disposed along the bottom of the channel to fluidize tarry deposits of combustion products so that such deposits will flow by gravity into the removable receptacle.
    Type: Grant
    Filed: March 28, 1979
    Date of Patent: January 6, 1981
    Inventors: Jean L. Genevois, Presti Paolo, Giuseppe De Stefani
  • Patent number: 4243082
    Abstract: A machine for cutting one or two slots in the sides of a log intended for use as a roofing rafter, the machine including a pair of dado saws, means for moving the saws up and down past the sides of a log, and supports for the saws which are adjustable to coordinate the angle of the cuts with the angle of a previously made notch.
    Type: Grant
    Filed: July 18, 1978
    Date of Patent: January 6, 1981
    Assignee: New England Log Homes, Inc.
    Inventors: Alfonso A. Paris, Jr., Douglas W. Muscanell, James H. Grutter
  • Patent number: 4243231
    Abstract: A gasket providing superior sealing having a grommet inserted in its holes and a graphite sheet mounted in the narrow area between the two adjoining or adjacent holes is disclosed.
    Type: Grant
    Filed: August 10, 1979
    Date of Patent: January 6, 1981
    Assignee: Ishino Gasket Mfg. Co., Ltd.
    Inventor: Minoru Sugawara
  • Patent number: 4239075
    Abstract: A precured tire tread for use in retreading tires contoured to have a flat road-contacting tread surface when applied to the casing.
    Type: Grant
    Filed: July 14, 1977
    Date of Patent: December 16, 1980
    Inventor: John A. Hedlund
  • Patent number: 4236526
    Abstract: A method of screening for sickle cell disease is provided by detecting the presence of porphyrins and porphyrin metabolites in human teeth comprising cleaning the teeth, exposing the cleaned teeth in vivo to a source of light, which has a wavelength known to excite the fluorescent emission spectrum characteristic of porphyrins and porphyrin metabolites and, optimally, which emits a wavelength of about 360 nm, detecting fluorescence, either visually or photographically, and determining the presence of porphyrins or porphyrin metabolites by emission of fluorescence characteristic thereto.
    Type: Grant
    Filed: January 31, 1978
    Date of Patent: December 2, 1980
    Inventor: Patricia A. Richard
  • Patent number: 4236513
    Abstract: A treatment chamber for a human extremity specially adapted for use with a pulsed or hyperbaric oxygen supply, the chamber comprising upper and lower sections adapted to be sealingly clamped together and provided at one end with a demountable annular sleeve, which fits sealingly against the sides of a patient's extremity and against a chamber end closure element.
    Type: Grant
    Filed: April 18, 1979
    Date of Patent: December 2, 1980
    Inventor: Rocco W. LoPiano
  • Patent number: 4235427
    Abstract: A plastic spring element defined by inner and outer convolutions of different thickness defined by radii and with tapered walls extending therebetween.
    Type: Grant
    Filed: May 7, 1979
    Date of Patent: November 25, 1980
    Inventor: Walter Bialobrzeski
  • Patent number: 4235243
    Abstract: Method and apparatus for facilitating the non-invasive study of a piezoelectric member, the method including the steps of generating a stress wave in the member at one point and sensing the magnetic field generated in the member at a second point distal to the first point. The apparatus includes an ultrasonic driver for generating the stress wave in the member, and a magnetic field sensor for sensing the generated magnetic field.
    Type: Grant
    Filed: October 23, 1978
    Date of Patent: November 25, 1980
    Inventor: Subrata Saha
  • Patent number: 4232973
    Abstract: To continuously mix two flowable products such as a solid product in the divided state and a liquid product, two concentric ducts are provided each with associated entraining means. The entraining means of the outer duct serves to move a first one of the flowable products along the duct from an entry port towards an exit port for the mixed products and includes a helical element urging the first product into rotation in passage along the outer duct. The second duct opens into the outer duct between the entry and exit ports of that duct and the entraining means of the inner duct serves to move the second flowable product through the inner duct and into the outer duct in the center of the first product stream.
    Type: Grant
    Filed: January 17, 1979
    Date of Patent: November 11, 1980
    Assignee: Societe Symac
    Inventor: Pierre Ligouzat
  • Patent number: 4223708
    Abstract: A machine for cutting a rectangular mortise in either or both sides of a log intended for building construction, with means for determining accurately the spacing of each mortise from an adjacent end of the log and/or from an adjacent mortise, and the method of operating the machine to effect a plurality of spaced cuts.
    Type: Grant
    Filed: April 13, 1978
    Date of Patent: September 23, 1980
    Assignee: New England Log Homes, Inc.
    Inventors: Alfonso A. Paris, Jr., Douglas W. Muscanell
  • Patent number: 4223836
    Abstract: An improved snowmaking machine and method for producing artificial snow is provided, whereby a moving airstream at or below freezing temperature which is created by a motor-driven fan within a cowling is passed through an inwardly tapering conical collar attached to the downstream opening of the cowling, and water droplets are sprayed into the airstream from a plurality of nozzles distributed around an arc of preferably about 190 to 300 degrees around the opening defined by the conical collar. A mixture of water and compressed air is injected into the airstream downstream of the point the airstream exits the conical collar.
    Type: Grant
    Filed: December 7, 1978
    Date of Patent: September 23, 1980
    Assignee: Zemel Brothers, Inc.
    Inventor: Donald W. Eager
  • Patent number: 4221246
    Abstract: A machine for cutting tenon ends on logs to be used as floor joists, the machine including transfer devices for depositing each log on a pair of conveyor belts, cut-off saws for cutting the log ends to a fixed length, sets of parallel and angled saws for cutting tenons on both ends of the log, and delivery devices for removing the sawed logs from the conveyors.
    Type: Grant
    Filed: August 3, 1978
    Date of Patent: September 9, 1980
    Inventor: William G. Grutter
  • Patent number: 4218727
    Abstract: A luminaire having parabolic reflector elements to obtain strong crossed beams of reflected light forming the main components in a batwing distribution, with elliptical reflector elements to reflect light toward the center and mid-zones of the distribution pattern but not toward the peripheries, to improve the uniformity of the illumination on a surface and to reduce direct discomfort glare. The luminaire has special utility for uplighting, to illuminate a ceiling which can thus produce indirect illumination of an area, relatively free from veiling reflections.
    Type: Grant
    Filed: July 3, 1978
    Date of Patent: August 19, 1980
    Assignee: Sylvan R. Shemitz and Associates, Inc.
    Inventors: Sylvan R. Shemitz, Benjamin L. Stahlheber
  • Patent number: 4218258
    Abstract: An improved hydraulic cement is provided for use upon admixture with aqueous media, preferably either water or aqueous latex, and primarily comprises a hydraulic cement, a polyethylene oxide homopolymer and an alkyl derivative of cellulose, preferably a hydroxyalkyl cellulose.
    Type: Grant
    Filed: May 30, 1978
    Date of Patent: August 19, 1980
    Assignee: Laticrete International, Inc.
    Inventor: Henry M. Rothberg
  • Patent number: 4216764
    Abstract: A cup-shaped member having cylindrical sides for coupling adjacent ends of headers of solar collectors of the liquid heat-exchange type, or a header to an associated manifold. The member has a cylindrical body and an orifice in the base through which liquid flows. Several arrangements for using the member to couple the headers together or to a manifold are disclosed.
    Type: Grant
    Filed: September 14, 1978
    Date of Patent: August 12, 1980
    Assignee: Sunworks, Inc.
    Inventor: Peter D. Clark
  • Patent number: 4216032
    Abstract: Superior corrosion resistance is provided by an improved oil composition an aqueous emulsified phosphating oil, an effective amount of polyvinylpyrrolidone and metallic zinc powder dispersed therein, which is applied, preferably by immersion or spraying, to a phosphated metal surface.
    Type: Grant
    Filed: September 27, 1978
    Date of Patent: August 5, 1980
    Inventors: Jacob Hyner, Jacob M. Hage, Stephen Gradowski