Patents Examined by Richard W. Burks
  • Patent number: 4083780
    Abstract: A fluid purification system is disclosed comprising a pressure vessel containing a plurality of spiral wrap membrane elements. The spiral wrap membrane elements are placed in parallel within the pressure vessel to purify an efficient amount of fluid for a given diameter fluid purification apparatus. The spiral wrap membrane elements have product fluid passageways of short length to insure a low pressure drop in the passageways.
    Type: Grant
    Filed: July 29, 1976
    Date of Patent: April 11, 1978
    Assignee: Envirogenics Systems Company
    Inventor: Noel Stuart Call
  • Patent number: 4082675
    Abstract: A vibrating centrifuge provided with a rotary support body has mounted thereon a basket receiving the granular material to be dehydrated and is operatively connected with a vibrating mechanism and also with a rotary drive, as well as thrust spring elements which yieldably connect the rotary drive with the support body. These thrust spring elements are arranged in an annular space between the outer circumference of said support body and the inner circumference of a drive sleeve forming a part of the rotary drive, and variable adjusting member engaging said thrust spring elements are employed for carrying the radial height of said thrust spring elements.
    Type: Grant
    Filed: August 9, 1972
    Date of Patent: April 4, 1978
    Assignee: Klockner-Humboldt-Deutz Aktiengesellschaft
    Inventor: Wolfgang Heckmann
  • Patent number: 4082674
    Abstract: For use in a body of water having variable levels, means sealing channels to the banks of said body of water, and floatable means extending across said body of water and into said channels capable of holding back petroleum products and other floatable debris released upstream into said body of water.
    Type: Grant
    Filed: April 30, 1976
    Date of Patent: April 4, 1978
    Inventor: Francis J. Dalli
  • Patent number: 4082673
    Abstract: The filter assembly employs a closure portion having fluid inlet and outlet ports integral therewith enabling in-line use of the assembly. Associated with such closure is a spring biased valve handle, whereby rotation of the handle along a prescribed course of travel enables simultaneous closing of the inlet and outlet ports thusly permitting free movement of the filter assembly body from the closure. A vent is provided in the closure which acts to relieve internal pressure within the assembly thereby further enabling easy removal of the filter body.
    Type: Grant
    Filed: May 30, 1975
    Date of Patent: April 4, 1978
    Assignee: AMF Incorporated
    Inventor: Guido D. Cilento
  • Patent number: 4081379
    Abstract: A filter bag pressure vessel having a filter bag that affords significantly more filter area than the conventional filter bag per equal unit area of volume displacement. The arrangement incorporates a center feed that permits a positive 360.degree. sealing of the inlet and filter bag between two parallel surfaces with a single sealing means that eliminates close tolerances and other requirements that were utilized in the prior art constructions. In addition, the filter bag and supporting structure can be adapted to fit within existing pressure vessels.
    Type: Grant
    Filed: October 28, 1976
    Date of Patent: March 28, 1978
    Assignee: Advanced Filtration Equipment Corporation
    Inventor: Edward A. Smith
  • Patent number: 4078723
    Abstract: A method of removing a gas from a mixture of the gas and a liquid of greater density than the gas comprising introducing the mixture continuously into a hollow body in the form of a jet of the mixture, impinging the jet of the mixture onto a surface within the chamber, the jet of mixture and the surface being so arranged as to cause the mixture to spread over the surface and to cause the gas to separate from the spreading mixture and rise to a vent at the uppermost part of the hollow body, the liquid then being removed from the hollow body.
    Type: Grant
    Filed: June 14, 1976
    Date of Patent: March 14, 1978
    Assignee: Myson Heat Exchangers Limited
    Inventor: George Robert Hunt
  • Patent number: 4071937
    Abstract: A filter cartridge has a fluid-permeable support body formed externally with ribs and is closely surrounded by a "folded" (e.g. corrugated) sheath of sintered material. The support body may likewise be formed of sintered material and preferably the sheath and support body are sintered together.
    Type: Grant
    Filed: August 10, 1976
    Date of Patent: February 7, 1978
    Assignee: Sintermetallwerk Krebsoge GmbH
    Inventor: Rainer Rohlig
  • Patent number: 4072613
    Abstract: An ozone reactor having two elongated chambers mounted coaxially. The outer hamber having closures at each end and the inner chamber being smaller in cross section and being mounted in spaced relation to the outer chamber as well as being spaced from the end closures of the outer chamber. The outer chamber has inlet and outlet ports for admitting and exhausting the liquid. Mounted near the bottom end of the inner chamber is a sparger for introducing bubbles containing ozone which rise to the top of the liquid causing a circulation flow between the two chambers and up through the inner chamber. There may also be a stirrer mounted to extend into the inner chamber to cause a breakup of the ozone containing bubbles thereby speeding the dissolving of the ozone into the liquid. Also there may be included a spray mounted to control the foaming of the liquid.
    Type: Grant
    Filed: October 4, 1976
    Date of Patent: February 7, 1978
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Craig S. Alig
  • Patent number: 4071454
    Abstract: A dialysis membrane comprising a plurality of polyvinyl alcohol hollow fibers of substantially homogeneous structure having a degree of orientation (.pi.) in the range of 60% .ltoreq. .pi. .ltoreq. 98% and a degree of swelling (.zeta.) in the range of 1.05 .ltoreq. .pi. .ltoreq. 1.80 times.
    Type: Grant
    Filed: September 10, 1976
    Date of Patent: January 31, 1978
    Assignee: Kuraray Co., Ltd.
    Inventors: Kohzo Yamamoto, Syuji Kawai, Akio Ohmori
  • Patent number: 4071453
    Abstract: A diaphragm filtration system includes a pipe and a filtering diaphragm supported substantially coaxially within the pipe and lying, at least indirectly, tightly against the inner pipe wall as filtration proceeds in a radially outward direction. The diaphragm is a sheet member bent cylindrically and having overlapping surfaces; the cross section of the diaphragm is an annulus having a non-continuous area and overlapping ends.
    Type: Grant
    Filed: October 7, 1976
    Date of Patent: January 31, 1978
    Assignee: Fried. Krupp Gesellschaft mit beschrankter Haftung
    Inventor: Gunter Koslowski
  • Patent number: 4070166
    Abstract: A method and a device for draining liquid from a secondary separator of a compressor plant is disclosed. The liquid is driven by the pressure in the separator to the liquid to be injected into the compressor and is together with the injection liquid driven into the compressor.
    Type: Grant
    Filed: January 12, 1976
    Date of Patent: January 24, 1978
    Assignee: Atlas Copco Aktiebolag
    Inventor: Kaj Bengt Ingemar Emanuelsson
  • Patent number: 4070293
    Abstract: A filter element for use in a filter for pressurized material in flowable form is disclosed. The filter element includes an elongated perforate web adapted to move longitudinally across the flow axis of the material being filtered and to accommodate filtered flow therethrough of the material. A plurality of seal members are fixed to the perforate web transversely to and at spaced intervals along the longitudinal axis thereof. The perforate web extends continuously and uninterruptedly across the seal members to thereby provide the sole and exclusive means of interconnection therebetween. The seal members preferably have a thickness at least as great or greater than the thickness of the perforate web, and preferably the ends of the seal members protrude laterally beyond the side edges of the perforate web.
    Type: Grant
    Filed: June 14, 1976
    Date of Patent: January 24, 1978
    Inventor: John E. Fogarty, Jr.
  • Patent number: 4069154
    Abstract: A process which enables a mixture of liquid and gas, coming from a rotary vacuum filter, to be collected and simultaneously separated.The mixture of gas and liquid is passed from the filter into a vacuum box provided with a space which rotates around the axis of the filter and is generally of circular shape, in which the liquid and gas separate, the liquid is introduced into a lower fixed space generally in the shape of a circular channel, and the gas is introduced into an upper fixed space generally in the form of a circular channel, so that the liquid and gas are collected separately.The process and the apparatus of the invention are advantageously employed in circular table filters divided into filtration zones and provided with wash means, especially in the manufacture of phosphoric acid by the wet method.
    Type: Grant
    Filed: September 25, 1975
    Date of Patent: January 17, 1978
    Assignee: Rhone-Poulenc Industries
    Inventor: Michel Barloy
  • Patent number: 4065271
    Abstract: Hydrogen fluoride is removed from gases by introducing the gases into a fluidized-bed reactor to form a gas-solid suspension, entraining a major part of the solids in an upward direction separating the solids entrained by the gases without prior removal of the solids from the gas-solid suspension, by means of an electrostatic precipitator.
    Type: Grant
    Filed: October 10, 1975
    Date of Patent: December 27, 1977
    Assignees: Metallgesellschaft Aktiengesellschaft, Vereinigte Aluminium-Werke AG
    Inventors: Ernst Weckesser, Volker Sparwald, Lothar Reh, Eberhard Bohm, Rolf Graf
  • Patent number: 4064053
    Abstract: A strainer blank comprises a flat sheet having a plurality of cutouts including a cutout adapted to define a strainer portion at the apex of a cone formed from the blank. Strainer material positioned over the cutouts defines a convex rear end at the apex which is folded during formation of the conical strainer to form a multi-ply elongated seam which adds strength and provides a surface area for adhesively uniting the strainer material.
    Type: Grant
    Filed: December 6, 1976
    Date of Patent: December 20, 1977
    Assignee: Louis M. Gerson Co., Inc.
    Inventors: Ronald L. Gerson, Lawrence A. Caprio
  • Patent number: 4064049
    Abstract: A water cleaner is formed of a hollow casing having a water inlet and a water outlet. An elongated tubing is secured to the interior of the casing and contains an inlet and an outlet and means for coupling the tubing inlet to the water inlet and the tubing outlet to the water outlet. A screen surrounds the exterior of the tubing and is secured thereto. A filter element surrounds the screen for removing impurities from the water passing from the casing inlet to the casing outlet.
    Type: Grant
    Filed: July 19, 1976
    Date of Patent: December 20, 1977
    Inventor: Alexander S. Calvano
  • Patent number: 4064045
    Abstract: The moisture content of filter cake removed from filter leaves is reduced by sluicing off peripheral portions of the cakes while the central portions of the cakes are held under compression against the filter leaves, and thereafter removing the remainder of the cakes in a dry discharge operation.
    Type: Grant
    Filed: November 10, 1976
    Date of Patent: December 20, 1977
    Assignee: Industrial Filter & Pump Mfg. Co.
    Inventor: Henry Schmidt, Jr.
  • Patent number: 4061574
    Abstract: A two-ended bundle of permeable hollow fibers has a first end potted in a resinous tubesheet which is opened for permeate egress by means of a plurality of bores which are generally parallel to the tubesheet face and connect with an axial conduit or with a peripheral, annular conduit. The face of the tubesheet which, optionally, may be opened, is supported by the end of the casing in which the assembly is enclosed when in use as a component of a permeability separatory apparatus. If the second end of the bundle is potted, it is not potted in the same tubesheet as the first end.
    Type: Grant
    Filed: February 14, 1977
    Date of Patent: December 6, 1977
    Assignee: The Dow Chemical Company
    Inventor: George B. Clark
  • Patent number: 4058465
    Abstract: A filter structure includes a central perforated cylinder surrounded by flexible separable filter units of self-standing porous material through which water is drawn by a pump connected to a cylinder for filtering algae and the like from the water. The central cylinder is apertured at the junction of separate filter units so that water may be drawn through the structure even though the filter units become clogged with filtered material.
    Type: Grant
    Filed: October 14, 1976
    Date of Patent: November 15, 1977
    Assignee: Lois Enebrad
    Inventor: Paul McKee
  • Patent number: 4058464
    Abstract: A filter includes a rigid core through which the filtrate passes and about which there are wound a number of elongated porous tubular filter mediums that contain a resilient grid, there being a scrubber screen between successive turns of each filter medium, and resilient means yieldably enclosing the outermost surfaces of the helically wound parts. The filter mediums compress radially and expand radially in response to fluid pressure variations to produce relative movement between the filter mediums and the scrubber screen by which cleaning takes place, thereby extending filter life. The solids that have been filtered out are collected and built up on the screen and the helical assembly expands diametrically a corresponding amount.
    Type: Grant
    Filed: September 15, 1976
    Date of Patent: November 15, 1977
    Assignees: John R. Coffey, Vincent B. Conliff, deceased
    Inventor: Robert N. Rogers