Patents Assigned to NCH Corporation
  • Patent number: 6675789
    Abstract: A control agent delivery system useful for dispersing a pesticide, herbicide, fungicide or other biocide around a target or target area that is not directly accessible or that is hazardous to the user. The system includes a separable, two-part projectile containing a control agent disposed in a powder, liquid or gel dispersal medium, together with a gas-propelled, projectile launching device. A method of use of the subject system that causes the projectile to perform differently, depending upon the manner of launch, is also disclosed.
    Type: Grant
    Filed: August 15, 2001
    Date of Patent: January 13, 2004
    Assignee: NCH Corporation
    Inventors: Robert Clarence Pearce, III, Dale Vilmer Kiplinger
  • Patent number: 6562256
    Abstract: A self-dispersing particulate composition, in the form of pellets, prills, flakes or granules, containing particles with a first functional component that is a glassy solid with small, dispersed pockets of pressurized gas and, in the same or different particles, a second functional component that is a special-use material having at least one additional utility. Special use materials include, for example, a deicer, a fertilizer, a drain cleaner, an insecticide, a carpet cleaner, and a powdered laundry detergent. Dissolution of the glassy material liberates pressurized gas, causing repositioning of the special-use material.
    Type: Grant
    Filed: May 6, 2002
    Date of Patent: May 13, 2003
    Assignee: NCH Corporation
    Inventors: Wayne Anthony Fleming, Robert Martin Holdar, Robert Clarence Pearce, III
  • Patent number: 6415990
    Abstract: A hand-held, pneumatically propelled, metering dispenser for powdered or granular products such as pesticides, the dispenser having a manually operated pneumatic pump, a product canister, a metering scoop insertable into the product canister in operative alignment with the pneumatic pump, and a discharge line into and through which powder or granules supported in the scoop are blown by operation of the pneumatic pump.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: July 9, 2002
    Assignee: NCH Corporation
    Inventor: Dale Vilmer Kiplinger
  • Patent number: 6335191
    Abstract: An automated system and method is provided for cultivating bacteria in a fluid medium and thereafter selectively discharging the fluid medium, wherein an initial supply of the selected strain or strains of bacteria is combined with nutrients and water in a biogenerator in the presence of air to promote mixing and bacterial cultivation. The system and method utilize a vortex created by recirculation of the fluid medium to achieve aeration and mixing without substantial foaming. The system and method are particularly useful for supplying bacteria to control grease accumulation in restaurant grease traps. The system and method use a biogeneration chamber which has a cylindrical sidewall and surface on the inner side. Further, the chamber has a top and a conical bottom. The top has inlet ports and a vent port. There is also a outlet port in the conical bottom.
    Type: Grant
    Filed: January 8, 1999
    Date of Patent: January 1, 2002
    Assignee: NCH Corporation
    Inventors: Dale Vilmer Kiplinger, Judith Gayle Pruitt, Jose Eduardo Evaro, Robert Clarence Pearce, III
  • Patent number: 6016818
    Abstract: A recirculating parts washer is disclosed that features a vertically mounted base and a sink and lid rotatably connected to the base. The recirculating parts washer features a cleaning fluid supply container which is separate from the sink but connected to it via a supply line and a drain line.Cleaning fluid is circulated to the sink via the supply line by means of a submersible pump submerged within the cleaning fluid inside the cleaning fluid supply container. Cleaning fluid returns to the supply container via the drain line, thus enabling the cleaning fluid to be reused over and over again until it is exhausted.By having the sink and lid rotatably mounted to the base of the recirculating parts washer, the bulk of the assembly can be conveniently pivoted upwards and back against the wall when not in use. The recirculating parts washer also features a direct current power supply assembly.
    Type: Grant
    Filed: May 27, 1997
    Date of Patent: January 25, 2000
    Assignee: NCH Corporation
    Inventors: Jose E. Evaro, Dale V. Kiplinger, David L. Varnell, Don A. York
  • Patent number: 5885942
    Abstract: The multifunctional lubricant additive compositions of the invention preferably contain a methylene bis(dibutyldithiocarbamate) as an antiwear and extreme pressure additive, a 2,5-dimercapto-1,3,4-thiadiazole derivative as an antioxidant and antiwear additive, a tolutriazole compound as an antioxidant and corrosion inhibitor, a glycerol monooleate as a friction modifier, a calcium sulfonate as a detergent and extreme pressure additive, a zinc dialkyl dithiophosphate as an antiwear and antioxidant additive, a polymethylacrylate as a dispersant, a polyol ester as a carrier and friction modifier, a red dye for leak detection, and optionally, solvent neutral oil and a pour point depressant.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: March 23, 1999
    Assignee: NCH Corporation
    Inventors: Ruiming Zhang, Robert M. Hooks
  • Patent number: 5877131
    Abstract: A translucent wire and cable lubricant containing from about 30 to about 80 weight percent of a mixture further comprising a resin and an oil, from about 10 to about 40 weight percent solvent, from about 1 to about 15 weight percent thermoplastic synthetic polymer, from about 1 to about 15 weight percent oxidized wax, from about 1 to about 15 percent sheep tallow, an extreme pressure agent, an antiwear agent, and a corrosion inhibitor.
    Type: Grant
    Filed: August 25, 1997
    Date of Patent: March 2, 1999
    Assignee: NCH Corporation
    Inventor: John F. Barnes
  • Patent number: 5856376
    Abstract: A tire puncture sealant containing water in an amount of from about 6% to about 64% by weight; ethylene glycol in an amount of from about 36% to about 94%; styrene butadiene latex in an amount of about 3%; polyethylene powder and ground rubber in an amount from about 3% to about 6%; a minor effective amounts of an alkali metal carbonate, a cellulosic thickener, an alkali metal nitrite and a corrosion inhibitor. The polyethylene powder and ground rubber are preferably surface-activated and include various particle sizes.
    Type: Grant
    Filed: March 3, 1997
    Date of Patent: January 5, 1999
    Assignee: NCH Corporation
    Inventor: Daniel W. Wong
  • Patent number: 5700765
    Abstract: An additive system and method of use that significantly extend the service life of petroleum based hydraulic fluids, improve antiwear properties, improve demulsibility, condition and swell seals to prevent leaking, increase oxidation life, improve thermal stability, improve corrosion resistance, improve antifoam characteristics, reduce the acid number of used hydraulic oils, and exhibit improved shelf stability and improved low temperature performance when compared to additive systems previously known, the additive system containing as essential elements a stabilized zinc dialkyldithiophosphate, a substituted sulfolane, an alkyl phenol and an effective amount of a solvent alcohol component selected from C.sub.9 -C.sub.11 or C.sub.12 -C.sub.13 alcohols, or other suitable alcohol blends, with or without other suitable adjunctive solvents such as aromatics or aromatic/ketone blends.
    Type: Grant
    Filed: August 3, 1995
    Date of Patent: December 23, 1997
    Assignee: NCH Corporation
    Inventors: John Franklin Barnes, Karl N. Gutzke, Robert M. Hooks
  • Patent number: 5500369
    Abstract: A hand-held portable sampler uses a vacuum to induce the flow of air into an air chamber and around a deflector plate mounted substantially transverse to the overall airflow pattern and with edges thereof close to the surface of nutrient material contained in culture containers between opposite sides of the enclosure and the deflector plate to define a constricted air passage. Particulates in the air are caused to impact the surface of nutrient material contained in culture containers as air is deflected through the constricted area. The venturi effect of the constricted area causes turbulence downstream to continue the process of impacting particulates in the nutrient material downstream from the constricted area of the air deflector.
    Type: Grant
    Filed: October 12, 1993
    Date of Patent: March 19, 1996
    Assignee: NCH Corporation
    Inventor: Dale V. Kiplinger
  • Patent number: 5460753
    Abstract: Aqueous cleaning compositions comprising phosphate esters, ethoxylated amines having five or more moles of ethoxylation, or optionally, an ethoxylated alcohol or ethoxylated alkyl phenol.
    Type: Grant
    Filed: May 10, 1993
    Date of Patent: October 24, 1995
    Assignee: NCH Corporation
    Inventor: Robert M. Holdar
  • Patent number: 5447638
    Abstract: A method for flocculating finely divided particles suspended in nonpolar liquids, thereby facilitating the removal of these particles by sedimentation or filtration, by treating the contaminated nonpolar liquids with from about 0.01% to about 5% by weight of a flocculant comprising a water soluble organic compound having a cationic quaternary nitrogen or ammonium group. The flocculants useful in the method of the invention are desirably miscible or dispersible in the nonpolar liquid, and a carrier solvent or surfactant may be used to improve dispersibility of the flocculant.
    Type: Grant
    Filed: September 16, 1993
    Date of Patent: September 5, 1995
    Assignee: NCH Corporation
    Inventors: Robert M. Holdar, Michael L. Paulson
  • Patent number: 5408790
    Abstract: A modular dock system (10) having a plurality of interconnected dock modules (12), each module having a rectangular frame with means (62) for supporting a metal grate (34) around its periphery, a drain pan (60) suspended from the frame beneath the grate, and an angular leg (24) at each corner of the frame, the modules being joined by vertically spaced bolts (64) interconnecting the abutting legs of adjacent modules. The system preferably includes a secondary containment system (14) having flow lines that gather spillage or leakage from the drain pan (60) of each module. A modular dock bumper assembly (16) is also disclosed for use with the modular dock system (10).
    Type: Grant
    Filed: December 2, 1993
    Date of Patent: April 25, 1995
    Assignee: NCH Corporation
    Inventors: Mark Hoesten, Stephen J. Spencer
  • Patent number: 5126062
    Abstract: An overbased calcium sulfonate grease comprising neutral oil, calcium sulfonate, calcium carbonate, dodecyl benzyl sulfonic acid, isopropyl alcohol, water, calcium hydroxide, 12-hydroxy stearic acid, phosphoric acid and an antioxidant.
    Type: Grant
    Filed: January 15, 1991
    Date of Patent: June 30, 1992
    Assignee: NCH Corporation
    Inventor: John F. Barnes
  • Patent number: 5027952
    Abstract: A system for administering acid to a clogged drain, and the method of using the system. The system includes a coupling to which a container of the acid can be threadedly secured. The coupling includes a piercing nipple, which penetrates a seal on the acid bottle. The nipple is hollow, and the acid passes from the bottle through the nipple and into a rigid, but arcuately deformable, tube that is connected to the coupling and is in fluid communication with the nipple. The tube is inserted into the clogged drain, until it is embedded in the clog. The acid is delivered directly to the clog, where it reacts with and dissolves the same.
    Type: Grant
    Filed: August 29, 1990
    Date of Patent: July 2, 1991
    Assignee: NCH Corporation
    Inventor: Dale V. Kiplinger
  • Patent number: 4969491
    Abstract: A system for administering acid to a clogged drain, and the method of using the system. The system includes a coupling to which a container of the acid can be threadedly secured. The coupling includes a piercing nipple, which penetrates a seal on the acid bottle. The nipple is hollow, and the acid passes from the bottle through the nipple and into a rigid, but arcuately deformable, tube that is connected to the coupling and is in fluid communication with the nipple. The tube is inserted into the clogged drain, until it is embedded in the clog. The acid is delivered directly to the clog, where it reacts with and dissolves the same.
    Type: Grant
    Filed: February 28, 1989
    Date of Patent: November 13, 1990
    Assignee: NCH Corporation
    Inventor: Dale V. Kiplinger
  • Patent number: 4854973
    Abstract: Low odor carbon and paint remover compositions useful in the removal of carbon build-ups and paint coatings and films from surfaces such as those associated with the combustion of fuels are disclosed which consists essentially of from about 45 to about 90 volume percent of a short chain chlorinated hydrocarbon, from about 3 to about 30 volume percent of a short chain dialkylamide, from about 1 to about 5 volume percent of a suitable surfactant, and from about 2 to about 20 volume percent of water. These compositions are corrosion resistant and ecologically safe, and may also include mixtures of polar and non-polar organic solvents with a blend of cationic and non-ionic surfactants and corrosion inhibitors.
    Type: Grant
    Filed: December 6, 1988
    Date of Patent: August 8, 1989
    Assignee: NCH Corporation
    Inventor: Robert M. Holdar
  • Patent number: D258472
    Type: Grant
    Filed: March 9, 1979
    Date of Patent: March 10, 1981
    Assignee: NCH Corporation
    Inventor: John M. Adam