Patents by Inventor Wilfred W. Wilson

Wilfred W. Wilson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5968338
    Abstract: In one embodiment, the present invention relates to a process for recovering an onium hydroxide from a solution containing an onium compound, including contacting the solution with a cation exchange material so that at least a portion of onium cations from the onium compound are adsorbed by the cation exchange material; contacting an acid with the cation exchange material to elute an onium salt; charging the onium salt to an electrochemical cell containing at least three compartments, a cathode, an anode, and in order from the anode to the cathode, a bipolar membrane and a cation selective membrane, and passing a current through the cell whereby the onium hydroxide is regenerated; and recovering the onium hydroxide from the cell.
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: October 19, 1999
    Assignee: Sachem, Inc.
    Inventors: David R. Hulme, Roger Moulton, Wilfred W. Wilson, Mark Hellums
  • Patent number: 5154932
    Abstract: Formulations or products are caused to be active antimicrobials by the addition thereto of at least one effective amount of at least one crystalline mixed metal hydroxide (MMOH) conforming substantially to the formulaLi.sub.m D.sub.d T(OH) (m+2d+3+na) (A.sup.n).sub.a.xH.sub.2 Owhere m is zero to one, D is a divalent metal, d is from zero to 4, T is a trivalent metal, A represents at least one anion or negative-valence radical, (m+2d+3+na) is equal or to greater than 3, (m+d) is greater than zero, and xH.sub.2 O represents excess waters of hydration. The MMOH forms an adduct with, an coats, the microbes, thereby deactivating the microbes.
    Type: Grant
    Filed: September 4, 1990
    Date of Patent: October 13, 1992
    Assignee: The Dow Chemical Company
    Inventors: John L. Burba, III, John L. Alexander, Arthur E. Read, Jr., Wilfred W. Wilson
  • Patent number: 4977156
    Abstract: Amino piperazine esters, preferably of the formula: ##STR1## wherein x is 0 or 1 and each R is independently hydrogen or inert substitution, are produced by reacting an (optionally substituted) N-(2-aminoethyl) piperazine with an (optionally substituted) alkylene carbonate. The novel compounds are biocides that retard the growth of fungi and are also useful in preparing polymers.
    Type: Grant
    Filed: July 26, 1988
    Date of Patent: December 11, 1990
    Assignee: The Dow Chemical Company
    Inventors: Jimmy Myers, Wilfred W. Wilson
  • Patent number: 4874611
    Abstract: A method of manufacture and the product made thereby are set forth; in the preferred and illustrated embodiment, a core including an insect poison is encapsulated by shell material melting and hardening for encapsulation. The core is primarily soybean extract mixed with DURSBAN.RTM. insecticide, an example of a toxicant. The surrounding shell or encapsulation is formed by melt extrusion of shell material. The surrounding shell encloses the core material to form an impervious shell. The surrounding shell includes soy protein as an insect attractant mixed in gelatin or poly(vinyl alcohol). A gelling agent such as carrageenan and the attractant were added to the shell. The beads formed by the melt extrusion encapsulation has sufficient shell strength to enable mechanical handling for dispensing, are resistant to water, do not bleed from the inside to the outside, and yet can be penetrated by the insect.
    Type: Grant
    Filed: December 7, 1987
    Date of Patent: October 17, 1989
    Assignee: The Dow Chemical Company
    Inventors: Wilfred W. Wilson, Sotiros C. Polemenakos, J. Larry Potter, Donald J. Mangold, William W. Harlowe, Herman W. Schlameus
  • Patent number: 4707355
    Abstract: A method of manufacturing and the product formed thereby are set forth; the product relates to an encapsulated insecticidal bait which in the preferred and illustrated embodiment has a surrounding shell about a core. The core is formed of a volatile fumigant or ingested toxicant mixed with an insect species attractant food such as soybean oil. The core is enclosed in a shell formed by a two part polycondensate system forming the shell about the core. A first part and a liquid define an interfacial contact around a bead of the first part wherein beads of the core material form droplets in the water. The polycondensate system is defined by the two-part intermediates, where the second part is added to the liquid ratably to encapsulate the droplets.
    Type: Grant
    Filed: January 22, 1985
    Date of Patent: November 17, 1987
    Assignee: The Dow Chemical Company
    Inventor: Wilfred W. Wilson
  • Patent number: 4560192
    Abstract: A door securer includes a generally U-shaped member that is adapted to be mounted on the side of a door that opens, as opposed to the side that is hinged. The inside leg of the U-shaped member is pivotably connected to a leg member that has a foot member pivotably mounted thereon remote from the universal joint. In situ, the leg member extends downwardly from the U-shaped member at an acute angle to the door, and the foot member engages the floor behind the door.
    Type: Grant
    Filed: November 9, 1982
    Date of Patent: December 24, 1985
    Inventors: Wilfred W. Wilson, Albert Schlanger
  • Patent number: 4493771
    Abstract: Compounds having improved properties of inhibiting the precipitation of metal ions when used in threshold amounts have been made which are derivatives of ammonia or di- or polyamines in which the amine hydrogens have been substituted with both methylenephosphonic acid groups or their salts and hydroxypropyl quaternaryammonium halide groups. Thus, ammonia can have two hydrogens replaced with methylenephosphonic groups while the third is replaced with a hydroxypropyltrimethylammonium chloride group; and three hydrogens of ethylenediamine can be replaced with methylenephosphonic groups, the fourth being replaced with a hydroxypropyltrimethylammonium chloride group.
    Type: Grant
    Filed: March 6, 1984
    Date of Patent: January 15, 1985
    Assignee: The Dow Chemical Company
    Inventors: David A. Wilson, Wilfred W. Wilson
  • Patent number: 4459241
    Abstract: Compounds having improved properties of inhibiting the precipitation of metal ions when used in threshold amounts have been made which are derivatives of ammonia or di- or polyamines in which the amine hydrogens have been substituted with both methylenephosphonic acid groups or their salts and hydroxypropyl quaternaryammonium halide groups. Thus, ammonia can have two hydrogens replaced with methylenephosphonic groups while the third is replaced with a hydroxypropyltrimethylammonium chloride group; and three hydrogens of ethylenediamine can be replaced with methylenephosphonic groups, the fourth being replaced with a hydroxypropyltrimethylammonium chloride group.
    Type: Grant
    Filed: April 28, 1983
    Date of Patent: July 10, 1984
    Assignee: The Dow Chemical Company
    Inventors: David A. Wilson, Wilfred W. Wilson
  • Patent number: 4330082
    Abstract: Air mixing apparatus that is particularly useful in connection with a winter make-up air and a summer ventilation system for a factory, warehouse or the like includes inner and outer relatively movable ducts, the former having side walls, an air inlet through which outside air can be drawn into the outer duct and an air outlet through which air can exit from the outer duct. At least one first port is provided in the side walls of the outer duct for passage of inside air, i.e, air from inside the building, into the outer duct. The inner duct has at least one second port in its side walls through which air can pass into the inner duct, and the inner duct also has an air outlet for passage of air into the outer duct where it can exit from the air outlet of the outer duct. Baffles extend between the inner and outer ducts on either side of the at least one first port and with the inner and outer ducts define a header. A motor or the like can move the ducts relative to each other between two positions.
    Type: Grant
    Filed: April 13, 1981
    Date of Patent: May 18, 1982
    Assignee: Frank Sloan
    Inventor: Wilfred W. Wilson
  • Patent number: 4327826
    Abstract: There is provided an apparatus for repeatedly unloading uncooked sausages from a support table by a reciprocating pusher. The pusher is lifted on its return by a spring attached to the pusher, which applies a varying upward force due to its cooperation with a stationary support element adjacent the free end of the spring.
    Type: Grant
    Filed: November 2, 1979
    Date of Patent: May 4, 1982
    Assignee: Ontario, Limited
    Inventor: Wilfred W. Wilson
  • Patent number: 4173107
    Abstract: There is provided an apparatus for loading sausages into trays, which includes a conveyor for the sausages and another for the trays. The sausages and trays are carried in the same direction laterally adjacent each other, and the trays are arrested one by one at a loading station. A low-friction table surface is located immediately above the tray and sausages are placed in side-by-side relation on the table. When the requisite number of sausages are accumulated on the table, a pusher blade shoves the sausages past the forward end of the table surface and into the forward end of the tray. The tray is then moved forward one-half its length, so that the next batch of sausages is inserted in the rearward end.
    Type: Grant
    Filed: November 4, 1977
    Date of Patent: November 6, 1979
    Assignee: Gemel Ltd.
    Inventor: Wilfred W. Wilson
  • Patent number: 4151829
    Abstract: A solar energy collector includes a housing having a back reflective wall and a transparent forward wall. The chamber between the walls is sealed against air-interchange with the surrounding air. A number of parallel blackened pipes are interconnected to define a fluid path from an inlet to an outlet, and the pipes are spaced so that there exists a plurality of unhindered light paths through the area of pipes from the transparent wall to the reflective surface, so that a substantial portion of any light passing along the unhindered paths and reflecting from the reflective surface will strike the exteriors of the pipes.
    Type: Grant
    Filed: September 21, 1977
    Date of Patent: May 1, 1979
    Assignee: Suntron Energy Systems Ltd.
    Inventor: Wilfred W. Wilson
  • Patent number: 3993096
    Abstract: This invention provides a damper construction for forced-air systems in which the damper may be opened and closed by means of a solenoid or equivalent component against a wide range of volumes and velocity. The main damper panel has a window to one side of an intermediate pivot axis, and a flap hinged to the panel and adapted to close and open the window in either direction across the panel. An air pressure differential across the panel exerts a greater turning moment on the flap side than on the other side when the flap is closed, and exerts a smaller turning moment on the flap side than on the other side when the flap is opened. Flap control means are provided which are switchable to allow the flap to act as a one-way valve in one direction across the panel, or as a one-way valve in the opposite direction of the panel.
    Type: Grant
    Filed: July 15, 1975
    Date of Patent: November 23, 1976
    Assignee: K.S.H. Canada Ltd.
    Inventor: Wilfred W. Wilson
  • Patent number: D245099
    Type: Grant
    Filed: April 10, 1975
    Date of Patent: July 19, 1977
    Inventor: Wilfred W. Wilson