Patents Examined by John W. Czaja
  • Patent number: 4424129
    Abstract: An apparatus for collecting, transporting and dewatering animal waste prior to its introduction into a press for separating the solids therein from the remaining liquid waste.
    Type: Grant
    Filed: June 28, 1982
    Date of Patent: January 3, 1984
    Inventor: Richard E. Bunger
  • Patent number: 4422932
    Abstract: Waste water is led into a container (1) through an inlet (4) at the top. A connection (20) between the inlet (4) and an outlet (21) having a check valve (22) comprises adjacent to the inlet (4) two inverted frusto-conical hollow bodies (24, 25) which are directly connected to each other. The connecting surface between the two hollow bodies (24, 25) is formed as a coarse screen (26). A round fine screen (30), which diverges downwardly, surrounds the hollow bodies (24, 25). Heat exchangers (31) are located in the space between the fine screen (30) and the wall (2) of the container (1). An outlet (5) terminates at the bottom of the container and connects with a riser (6) and via a bend (7) with the sewerage conduit (8). Through the coarse screen (26) the waste water reaches the container, and the heat can reach the heat exchangers (31) through the fine screen (30 ), so that practically uncontaminated water is present at the heat exchangers, and the need for cleansing is substantially diminished.
    Type: Grant
    Filed: February 10, 1982
    Date of Patent: December 27, 1983
    Inventor: Felix Kalberer
  • Patent number: 4420040
    Abstract: The present invention comprises a ball catcher having a housing which may contain a stinger, baffles, or both such features therein.
    Type: Grant
    Filed: May 7, 1982
    Date of Patent: December 13, 1983
    Assignee: Halliburton Company
    Inventors: David P. Arbasak, David L. Blake
  • Patent number: 4411788
    Abstract: A filter for use in a gasoline tank comprises a filter body provided in the upper portion thereof with an insertion hole for permitting passage of a suction pipe possessing a radially bulged engaging portion, resilient arms extended directly from the upper edge of the filter body or from an upper lid to be fitted to the filter body, and a retaining member supported in position by the resilient arms.The suction pipe can be securely retained at a proper position on the filter without entailing any unwanted motion within the gasoline tank by simply inserting the suction pipe having the radially bulged engaging portion through the insertion hole of the filter body.
    Type: Grant
    Filed: May 12, 1982
    Date of Patent: October 25, 1983
    Assignee: Nifco Inc.
    Inventor: Shigeru Kimura
  • Patent number: 4410477
    Abstract: A first continuously operating extruder for an extrudable material is fed with filtered such material from a second extruder through a filter and a storage tank having means for applying pressure to the material in the tank. During replacement of a filter, the second extruder is stopped, and the flow of material out of the continuously operating extruder is maintained constant by blocking the passageway between the second extruder and the tank and by applying suitable pressure to the material in the tank until the filter is removed and replaced by a new filter. The blocking device may be separate from a holder for a pair of filters, both the blocking device and the holder being movable by a fluid operable piston and cylinder. Alternatively, a separate blocking device may be omitted, and the filter holder may carry a single filter and have an impermeable portion which provides the blocking function.
    Type: Grant
    Filed: December 15, 1981
    Date of Patent: October 18, 1983
    Assignee: Treficable Pirelli
    Inventor: Marcel S. Claude
  • Patent number: 4406784
    Abstract: An adapter 10 for connecting a bypass oil filter to an internal combustion engine 14 having a full flow lubricating system is mounted between the oil filter mounting block 12 and the conventional full flow filter 16. The adapter includes means 48, 52 for diverting a portion of the circulating oil flow to the bypass filter and means 46, 74, 76 for returning that portion to the engine. The adapter includes a body portion 36 and an insert 60 which together define the passages necessary for diverting a portion of the oil flow to the bypass filter. The body includes a central axial 38 opening which receives the insert, the body and insert together defining an annular chamber 76 which receives clean oil from the bypass filter through a radial passage 46 in the body.
    Type: Grant
    Filed: April 12, 1982
    Date of Patent: September 27, 1983
    Assignee: Frantz Filters, Inc.
    Inventor: Clarence L. Cochran
  • Patent number: 4405466
    Abstract: The method and apparatus for filtering a liquid including a filter vessel divided into an upper filter compartment and a lower plenum compartment. An external vessel is positioned at or below the elevation of the tops of the filter element fittings in the plenum compartment. A pressurized gas is supplied to the upper portion of the external vessel forcing backwash liquid from the external vessel into the lower portion of the plenum compartment backwashing filter elements within the filter compartment.
    Type: Grant
    Filed: May 3, 1982
    Date of Patent: September 20, 1983
    Assignee: Ecodyne Corporation
    Inventors: Joseph F. Giannelli, George C. Flynn, Leo F. Ryan
  • Patent number: 4395333
    Abstract: The present invention relates to an improved filter element for use in an apparatus for filtering molten metal, and to the method of making such filter element. The apparatus consists of a filtering vessel fitted with a filter element. In one embodiment of the present invention the improved filter element is pre-wet with metal prior to the filtering apparatus being introduced into service. In a second embodiment of the present invention the improved filter element is reinforced with one or more reinforcing members. The improved filter element can be used in filtering vessels having a variety of designs.
    Type: Grant
    Filed: April 14, 1982
    Date of Patent: July 26, 1983
    Inventor: Daniel E. Groteke
  • Patent number: 4392957
    Abstract: A device suitable for recovering viscous material derived from petroleum, comprises a plurality of pairs of blades (1 and 2, 3 and 4, 5 and 6) each blade (1, 2, 3, 4, 5, 6) being pivotally mounted at either end, and the pivots on at least one end being connected to an actuating rod or rods, (11, 12, 13, 14). The blades and rods are arranged so that in a first position the pairs of blades are vertical, in a second position they form V-shaped containers (21, 23, 25) and in a third position the blades are again in pairs, which are either the same or different pairs from the original position.
    Type: Grant
    Filed: July 10, 1981
    Date of Patent: July 12, 1983
    Assignee: Vikoma International Limited
    Inventor: Michael G. Webb