Patents Represented by Attorney, Agent or Law Firm Jay L. Chaskin
  • Filter backwash means
    Patent number: 4477343
    Abstract: An inlet pipe having two branch pipes and an outlet pipe having two branch pipes, between the inlet and outlet pipes of each branch, there being a dump valve and a dump control valve, each outlet branch pipe containing in it a filter, the dump control valve sensing the pressure on each side of the filter and being operable, on pressure differential building up, to open the dump valve; by opening of either one of the dump valves, the water will flow through the inlet tube, the inlet branch tube of the outer dump valve and rearwardly through the filter element. The filter element will thereby be backwashed, and the particulate material which has been built up will be at least partly discharged through the dump valve to drain.
    Type: Grant
    Filed: December 31, 1981
    Date of Patent: October 16, 1984
    Assignee: Ris Irrigation Systems Pty. Limited
    Inventor: Alfred D. Tucker
  • Camera for stereoscopic photography
    Patent number: 4475798
    Abstract: A photographic camera for providing a plurality of film images in order to produce a stereogram. The camera has a plurality of objectives which are independently adjustable so that the optical axes of the lenses can be made substantially parallel in a first plane and substantially coplanar in a second plane orthogonal to the first plane. The objectives have substantially the same focal length and common shutter, aperture and focal control. The camera may include a film magazine having a film advance equal to the number of objectives.
    Type: Grant
    Filed: December 27, 1977
    Date of Patent: October 9, 1984
    Assignee: The Three Dimensional Photography Corporation
    Inventors: Edgar C. Smith, James B. Campbell
  • Evaporative cooler pad assembly
    Patent number: 4460394
    Abstract: An evaporative cooler pad assembly comprising a pad of absorbent material, e.g. woodwool is retained between a pair of side grids each of which has projections which interengage the other, and at least some of the projections extend through the pad and support it.
    Type: Grant
    Filed: June 14, 1982
    Date of Patent: July 17, 1984
    Inventor: Robert W. Wrightson
  • Evaporative cooler water spreader
    Patent number: 4460520
    Abstract: A spreader plate having a water receiving area which receives water from a pump, a plurality of ribs radiating outwardly from the central water receiving area, the lengths and spacing of the ribs being such as to divide the water up into a plurality of streams of approximately equal intensity, and a cover over the water receiving area comprising a deflector which deflects water flow over the water receiving area in a constant thickness film and into the channels between the ribs.
    Type: Grant
    Filed: June 14, 1982
    Date of Patent: July 17, 1984
    Inventor: Robert W. Wrightson
  • Golf practice device
    Patent number: 4449708
    Abstract: A golf practice device comprising a track secured to a fixed mounting surface, such as a wall, post or the like; a carriage guided for movement along the track and a flexible tension member connecting the carriage to the shaft of a golf club. The tension member is adjustable for length. The golf club is guided in a path of movement which lies generally in a plane parallel to the plane of the track. The track is of a smaller dimension and similar in shape to the path of movement.
    Type: Grant
    Filed: August 18, 1982
    Date of Patent: May 22, 1984
    Inventor: Michael N. R. Humphrey
  • Water valve
    Patent number: 4448213
    Abstract: A float valve in this invention has a hollow body having a spigot adjacent an orifice, a valve seat surrounding the orifice, a float arm pivoted to the hollow body, and an abutment surface on the float arm engageable against an elastomeric valve member when carried by the spigot.
    Type: Grant
    Filed: March 28, 1983
    Date of Patent: May 15, 1984
    Assignee: F. F. Seeley Nominees Pty. Ltd.
    Inventor: Frederic F. Seeley
  • Evaporative cooler pad frame support
    Patent number: 4443386
    Abstract: A baffle is upstanding from the base of an evaporative cooler tank, and a spreader has a depending flange, the pad frames having their lower ends located and supported by the upper edge of the baffle and their upper ends engaged and located by the depending spreader flange.
    Type: Grant
    Filed: June 14, 1982
    Date of Patent: April 17, 1984
    Assignee: F.F. Seeley Nominees Pty. Ltd.
    Inventor: Robert W. Wrightson
  • Furnace valve
    Patent number: 4392509
    Abstract: A furnace valve suitable for use in an electric furnace in the manufacture of mineral fibre comprising a water cooled sleeve provided with a carbonaceous member which is formed with a flow passage extending therethrough and a shutter plate movable across the face of the carbonaceous member to control the effective discharge area of the flow passage.
    Type: Grant
    Filed: May 19, 1980
    Date of Patent: July 12, 1983
    Assignee: Sidchrome (S.E. Asia) Limited
    Inventor: Michael Siddall
  • Electric furnaces
    Patent number: 4375449
    Abstract: An electric furnace for fusing of fusible metal/non-metal oxide compounds, for example slag, having a side wall of steel, a plurality of electrodes depending into the furnace, a coolant distributing conduit surrounding the furnace near its upper end, and a tapping valve located in the side wall of the furnace between its upper and lower ends, the furnace being operated by melting the slag to form a melt, the outer layer of which is in contact with the inner surface of the furnace side wall which is frozen by the chilled coolant flowing over the outer surface thereof, to thereby form a frozen slag lining on the side wall inner surface which is continuously replenished as it is depleted.
    Type: Grant
    Filed: May 20, 1980
    Date of Patent: March 1, 1983
    Assignee: Sidchrome (S.E. Asia) Limited
    Inventor: Michael Siddall
  • Water bed base
    Patent number: 4352217
    Abstract: A water mattress base support having a flat bottom wall of flexible waterproof sheet material and raised sides extending around the periphery of the bottom wall, each of the raised sides being formed by a pocket of flexible waterproof sheet material and resilient bolster or infill means inserted therein, the bottom wall and the peripheral pockets co-operatively defining together a recess the dimensions of which are such that it can accommodate a water mattress.
    Type: Grant
    Filed: March 21, 1980
    Date of Patent: October 5, 1982
    Inventor: Peter W. O'Rourke
  • Apparatus for collecting oil or similar substances from the surface of water
    Patent number: 4349439
    Abstract: Disclosed is an apparatus for collecting oil or similar substances from the water surface. The apparatus comprises a floating rope being held in a loop shape and adopted to collect oil contaminated therewith. The apparatus is conventionally provided with a cleaning device removing oil from the rope and with means for pulling the rope past said cleaning device. In order to improve collection capacity of the rope, the invention provides means connected to the rope for rotating the same around the longitudinal axis thereof. Said means can be positioned e.g. at the end of one of two booms or similar holding the rope in the loop shape. The cleaning device may be positioned in the middle so that two loops are formed, one on each side of the cleaning device, and the pulling means may then be adopted to pull the rope alternatingly in opposite directions through the cleaning device.
    Type: Grant
    Filed: April 27, 1981
    Date of Patent: September 14, 1982
    Inventor: Lars I. Lundin
  • Water distribution means for an evaporative air cooler
    Patent number: 4338264
    Abstract: An evaporative air cooler including improved means for distributing water through the evaporative pad of the cooler through which air is drawn for cooling, the improved water distributing means comprising a tray-like member having a water inlet arranged to introduce water at an approximate central location on said tray-like member, and a plurality of radially outwardly extending water-flow channels extending between the water inlet location and a peripheral edge portion of the member, the tray-like member being located relative to the evaporative pad such that, during use, water issuing from the water flow channels runs downwardly through the evaporative pad.
    Type: Grant
    Filed: March 26, 1980
    Date of Patent: July 6, 1982
    Assignee: F. F. Seeley Nominees Pty. Ltd.
    Inventor: Frederic F. Seeley
  • Irrigation means and method
    Patent number: 4330222
    Abstract: An underground watering system having a water distribution pipe and at least one strainer box over the water distribution pipe, the strainer box containing gravel or other particulate matrial, and the distribution pipe having a water emitting aperture which is located within the strainer box, so that water is discharged into the particulate material.
    Type: Grant
    Filed: April 17, 1980
    Date of Patent: May 18, 1982
    Inventor: Heinz E. O. Klein
  • Package carton and procedure for its manufacture
    Patent number: 4325507
    Abstract: The invention relates to a package for books and like flat articles, comprising an inner, double folded carton envelope and an outer protective cover of paper or like thin material closing the edges of the carton envelope. According to the invention each one of the two opposite open edges of the carton envelope is closed by means of two flaps on the protective cover, one of the flaps being folded between the carton envelope and the protective cover, and the other one being folded over the outer side of the protective cover. The third open edge of the carton envelope is closed by means of double folded closing flap formed on the protective cover.
    Type: Grant
    Filed: August 25, 1980
    Date of Patent: April 20, 1982
    Inventor: Veikko I. Janhonen
  • Polisher mounting means
    Patent number: 4322866
    Abstract: A floor polisher mounting means for mounting a floor polisher brush or pad to a coupling on the shaft of a floor polisher, comprises a disc of elastomeric material with a thick central zone and a thin peripheral zone, a metal boss on the central zone for mounting to the coupling means, and a metal mounting on the peripheral zone for coupling to the polisher brush.
    Type: Grant
    Filed: June 19, 1980
    Date of Patent: April 6, 1982
    Assignee: Anthony John Brazzale
    Inventor: Gina Brazzale
  • Motor overload safety device
    Patent number: 4320317
    Abstract: A rotor of a motor has a bearing mounted thereon, the bearing having a tab which is urged in one direction by the fluid friction of the lubricant in the bearing, the tab being urged against a spring, the tab actuating a micro-switch. The force exerted by the tab on the spring is a function of the rotor speed. Upon reduction of rotor speed the spring urges the tab rearwardly so that the micro-switch open circuits in turn disconnecting power from the motor which comes to a standstill.
    Type: Grant
    Filed: March 21, 1980
    Date of Patent: March 16, 1982
    Inventor: John J. Bowey
  • Method of air conditioning
    Patent number: 4319461
    Abstract: An air conditioning method wherein supply air is introduced into an air conditioned space to maintain a condition of temperature and humidity of air within that space. The invention is characterized in that the air is passed over the cold coil of a dehumidifier both with a low face velocity and a low Reynolds number, resulting in the coil condition curve being compatible with the load ratio line and in turn achieving an energy saving.This invention relates to a method of air conditioning and has as its main object the conservation of energy as well as the improvement of air conditioning system performance.
    Type: Grant
    Filed: December 18, 1979
    Date of Patent: March 16, 1982
    Assignee: University of Adelaide
    Inventor: Allan Shaw
  • Illuminating whistle
    Patent number: 4314316
    Abstract: An illuminating apparatus which may include audio sound comprises a mouthpiece chamber for producing the forcible passage of air against a flexible conductive contact which completes an electrical circuit to a lamp.
    Type: Grant
    Filed: April 21, 1980
    Date of Patent: February 2, 1982
    Inventors: Leona Gertler, Robert Gertler, Dietmar Nagel, Melvin Kennedy
  • Illuminated whistle
    Patent number: D266407
    Type: Grant
    Filed: April 21, 1980
    Date of Patent: October 5, 1982
    Inventor: Dietmar Nagel
  • Illuminated whistle
    Patent number: D266652
    Type: Grant
    Filed: April 21, 1980
    Date of Patent: October 26, 1982
    Inventor: Dietmar Nagel