Patents Represented by Law Firm Fetherstonhaugh & Co.
  • Patent number: 4824055
    Abstract: An improved railroad FROG of nearly shrink free casting and method of forming is disclosed. The FROG is comprised of a triangular shaped top area with an actual FROG point at the center of the casting, widening at one end to a heel and heel extension with flangeways adjacent each side to allow the passage of wheels. A throat is located ahead of the actual FROG point and extends forwardly to a toe end of the casting. The throat is bound by wings of the casting. The casting has a solid arched, ribbed supporting structure below the running surface of the casting.
    Type: Grant
    Filed: February 2, 1987
    Date of Patent: April 25, 1989
    Assignee: Nortrak Limited
    Inventors: Allen J. Tuningley, Keith M. Barlow, Thomas R. Stanley
  • Patent number: 4817647
    Abstract: A method of removing oil from a golf course is disclosed. In this invention, an absorbent mat is applied to the oil spill site to absorb an initial amount of the oil. The mat is removed after a sufficient period of time, and then, a surfactant is applied to the spill site. A second absorbent mat is, in turn, applied to the spill site in order to absorb a further amount of the oil and an initial amount of the surfactant. Water is then applied to the spill site to flush away the residual oil and surfactant.
    Type: Grant
    Filed: November 2, 1987
    Date of Patent: April 4, 1989
    Assignee: Green Kleen International Inc.
    Inventor: James H. Nelson
  • Patent number: 4813367
    Abstract: An underwater sled to carry a diver and including a motor and propeller, driven by the motor, to propel the sled. There is a body extending forwardly from the propeller. A rotatable joint in the body allows relative rotation of the forward and aft ends of the body. A side member extends outwardly from each side of the forward end of the body. A foil is rotatably mounted on each side member and the diver can control rotation of the body and of each foil.
    Type: Grant
    Filed: May 18, 1987
    Date of Patent: March 21, 1989
    Inventor: Michael Stevenson
  • Patent number: 4811828
    Abstract: A savings bank having a plurality of coin slots opening through its front wall for admitting coins to its coin storage chamber. A coin barrier is located at each coin slot. An activator is provided for moving each barrier between a first position in which it is arranged to close its associated slot and a second position in which its associated slot is open. A control system is provided which communicate with the activators for controlling the movement of each barrier between its first and second positions. The control system being accessible to a user to permit the user to determine which of the coin slots is to be opened to admit a coin in use.
    Type: Grant
    Filed: April 16, 1987
    Date of Patent: March 14, 1989
    Inventors: Linda Gotman, Nickolas K. Gotman
  • Patent number: 4808830
    Abstract: An infrared beam shaper able to emit a beam of infrared light having a specified shape within a predetermined distance is disclosed. It is comprised of a cluster of hollow cylindrical tubes, a source positioned at a first end of each tube and an aperture located at a second end of each tube. Each tube is positioned in the cluster arrangement with their apertures located adjacent each other and each tube has a light absorbing liner extending along each tube from the first end to the second end. Most light emitted by the source which diverges away from the central horizontal axis defined by the tube before the second end will be absorbed by the liner and any remaining light will be emitted through the aperture.
    Type: Grant
    Filed: June 15, 1987
    Date of Patent: February 28, 1989
    Inventor: Warren Burgis
  • Patent number: 4807823
    Abstract: A bathroom tissue dispenser with a top and bottom tissue roll holder, has fixed spindles and a lockable hinged enclosure over the top spindle. The enclosure makes it difficult to remove sheets from the top roll until the bottom roll has been depleted. The dispenser has a rigid construction and is less prone to damage than existing dispensers.
    Type: Grant
    Filed: March 18, 1988
    Date of Patent: February 28, 1989
    Assignee: Wyant & Company Limited/La Compagnie Wyant Limitee
    Inventor: James A. Wyant
  • Patent number: 4807440
    Abstract: An internal combustion engine in which the energy generated by combustion is converted into kinetic energy in the form of a high speed jet of exhaust gases which is used to drive a rotor which in turn drives a power output shaft. The engine comprises a housing having a rotor chamber formed therein. A combustion chamber located in close proximity to said rotor chamber. A nozzle is provided which has an input end communicating with the output passage of the combustion chamber and an output end communicating substantially tangentially with the rotor chamber. A rotor is mounted for rotation in said rotor chamber on the power take-off shaft. The rotor has a plurality of pockets extending inwardly from and spaced about its outer periphery. An exhaust port opens from the rotor chamber and is circumferentially spaced from the output passage of the nozzle. A source of compressed combustible gaseous fuel communicates with the input passage of the combustion chamber.
    Type: Grant
    Filed: October 19, 1987
    Date of Patent: February 28, 1989
    Inventor: Ahmed Salem
  • Patent number: 4802675
    Abstract: A game comprising a toy gun and an electronic target which registers hits produced by the gun. The gun comprises an electronic flash tube connected to a circuit to produce a high voltage unidirectional supply from a low voltage supply. When the gun trigger is depressed, the flash tube is fired and the resulting light is concentrated to produce a relatively narrow beam of light. As well, an audio signal is produced for each press of the trigger. If the beam of light impinges on the electronic target, an audio-visual signal results to indicate a hit.
    Type: Grant
    Filed: September 24, 1986
    Date of Patent: February 7, 1989
    Inventors: David L. W. Wong, Paul C. P. Leung, Friederich H. Spissinger
  • Patent number: 4800832
    Abstract: A knock-down boat assembly comprises bow, mid and stern water-tight transverse hull sections, each having fore and aft ends, concave side walls and a transverse bulkhead at the aft end of the bow section, at the fore and aft ends of the mid section and at the fore end of the stern section. The stern section is nestable in the mid-section and the bow section is nestable in the stern section when in the knock-down configuration. The forward bulkhead of the stern section is secured in a position butting against the aft bulkhead of the mid-section and the aft bulkhead of the bow section is secured in a position butting against the fore bulkhead of the mid-section when the boat is assembled for sailing.
    Type: Grant
    Filed: March 6, 1987
    Date of Patent: January 31, 1989
    Inventor: Edmund J. Sulimierski
  • Patent number: 4799873
    Abstract: A machine for manufacturing a unitary glass fibre reinforced body shell includes a carriage which is movable along the mold and a turntable which is mounted on a carriage for rotation about a first axis extending in the direction of longitudinal movement of the carriage. An arm is slidably mounted on the turntable for radial movement and a dispenser is located on the arm for dispensing glass fibre reinforced resin onto the surface of the mold. A guidance system is provided which interconnects the turret and the slidable arm and is operable to cause the arm to reciprocate with respect to the turret in a radial direction to maintain a substantially constant length of trajectory extending between the dispenser and the wall of the mold. A drive system is provided for rotatably driving the turret about the axis. The carriage is normally stored on a mobile end cap which may be moved from one mold to another and serves to close one end of the mold.
    Type: Grant
    Filed: July 11, 1983
    Date of Patent: January 24, 1989
    Assignee: Diesel Equipment Limited
    Inventor: Roger J. Martin
  • Patent number: 4796844
    Abstract: A bracket for attachment of an electric meter box (termed, in the trade, a meter base or socket) to a wall wherein the bracket is comprised of a mounting strap and at least one hook. The mounting strap, when in position attached to the rear wall meter base extends beyond the perimeter of the base with means for attaching the strap to the wall. The hook or hooks provide the means for attaching the meter base to the bracket and extend from the mounting strap and terminate in a curve adapted to hold the meter base against the mounting strap.
    Type: Grant
    Filed: November 27, 1987
    Date of Patent: January 10, 1989
    Inventor: Ronald Barker
  • Patent number: 4793550
    Abstract: A carton having a binding strap secured to its perimeter wall so that it is retained in close proximity to the perimeter wall. The strap has a sufficient length to extend about the perimeter wall and to provide first and second end portions at first and second margin portions of the wall. The first and second end portions are connectable such that the strap may form a reinforcing band which extends about the perimeter of the load storage compartment.
    Type: Grant
    Filed: November 2, 1987
    Date of Patent: December 27, 1988
    Assignee: Container Corporation of Canada
    Inventor: Norman J. Gottlieb
  • Patent number: 4793091
    Abstract: A shark trap including a float. A first line extends from the float. There is a hook on the distal end of the first line. A housing is provided on the first line, below the float. A second line is slidably received in the housing. The trap has a second and third hook, one on each end of the second line. A shark taking bait on a hook will be susceptible to attack by other sharks.
    Type: Grant
    Filed: April 27, 1987
    Date of Patent: December 27, 1988
    Inventor: Alexander Cerny
  • Patent number: 4792332
    Abstract: A user operated colonic irrigaiton device. The device comprising a board to be received on a lavatory and to receive a person undergoing treatment with a generally triangular opening in the board. A resilient hood with an open end, being resiliently deformable to fit within the opening in the board and tapering from the open end to the closed end to match the shape of the generally triangular opening. The hood can be located in the opening by recesses on each side of the hood, able to engage the board. An abutment on the exterior of the closed end of the hood contacts the upper surface of the board. A tube is able to communicate a supply of liquid to the person. The tube is supported by a bracket extending upwardly from the hood. There is a recess in the bracket able to releasably grip the tube. The board is easy to clean and sterilize, relatively inexpensive to manufacture and more simple and practical than prior art boards.
    Type: Grant
    Filed: February 24, 1987
    Date of Patent: December 20, 1988
    Inventor: Toby Lansel
  • Patent number: 4788779
    Abstract: There is taught a method and apparatus for a drying of a continuous moist web such as paper wherein the web is passed through a nip formed of two moving surfaces, one of these surfaces being a relatively impermeable material heated to a temperature of at least 120.degree. C., the other surface being formed of a relatively porous material and being maintained at a temperature below 100.degree. C., while maintaining a pressure on the moist web sufficient to prevent blowoff.
    Type: Grant
    Filed: June 15, 1987
    Date of Patent: December 6, 1988
    Assignee: Pulp and Paper Research Institute of Canada
    Inventor: Donald G. Sparkes
  • Patent number: 4785477
    Abstract: A thermally insulated glove of the type which has a mitt portion and a thumb portion is formed with a forefinger or trigger finger portion which has a finger compartment communicating with the mitt compartment. The finger compartment is proportioned to accommodate and arranged to receive the forefinger of the wearer in use. The forefinger portion is formed from a thin, flexible material such that it will not significantly restrict the dexterity of the forefinger of the wearer in use and will allow the wearer a substantial degree of tactile sensitivity therethrough. The remainder of the glove is formed from a thermal insulation material which substantially restricts the tactile sensitivity of the wearer.
    Type: Grant
    Filed: May 21, 1987
    Date of Patent: November 22, 1988
    Assignee: Marzo Glove Company Limited
    Inventor: Phillip C. V. Marzo
  • Patent number: 4784055
    Abstract: This invention relates to an apparatus for injecting a fluid substance into a portion of meat. In particular, this invention relates to an apparatus for injecting a fluid substance having a paste-like consistency through needles into a portion of meat wherein a uniform dose of fluid is injected through each needle.
    Type: Grant
    Filed: May 20, 1987
    Date of Patent: November 15, 1988
    Assignee: Langen Research B.V.
    Inventors: Johannes C. Langen, Christianus P. Langen
  • Patent number: 4783862
    Abstract: A rescue stretcher for use in evacuating a number of babies from a hospital or the like comprises a stretcher which has a plurality of pockets located on the patient support surface thereof at spaced intervals along the length thereof. Each pocket is proportioned to accommodate at least one baby. The pockets are preferably arranged so that they all open toward one end of the stretcher.
    Type: Grant
    Filed: February 3, 1988
    Date of Patent: November 15, 1988
    Inventor: Wendy J. Murphy
  • Patent number: 4784136
    Abstract: In electrical epilation equipment useful to permanently remove unwanted body hair it is known to have a needle electrode to affect the immediate surroundings of the papilla. In this invention the needle electrode has been adapted to fit into the first arm of a pair of tweezers where its position can be adjusted so that the needle protrudes more or less from the tip of the tweezers first arm. This feature facilitates a consistent insertion depth of the needle into the follicles. Switches adapted to fit into the tweezers control electricity flow to the needle electrode when the tweezers is being closed to grip a hair. An indicator light adapted to fit into the tweezers monitors the presence of electrical energy at the needle electrode.
    Type: Grant
    Filed: January 12, 1987
    Date of Patent: November 15, 1988
    Inventor: Peter Klein
  • Patent number: D300406
    Type: Grant
    Filed: August 14, 1987
    Date of Patent: March 28, 1989
    Inventor: Jerry Bordian