Patents by Inventor Christian Schaal

Christian Schaal 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).

  • Cleaning/disinfectant composition to clean surfaces
    Patent number: 7183246
    Abstract: A composition and method for cleaning surfaces having deposits, such as drink water tanks, supply water wells, water filter systems, and distributor water lines. The composition contains in combination a cleaning solution and a disinfectant, such as hydrogen peroxide or peracidic acid. The cleaning solution can includes hydrochloric acid and/or phosphoric acid in combination with inhibitors, dyes and water. The composition is applied to deposits which have formed on these surfaces.
    Type: Grant
    Filed: October 29, 2001
    Date of Patent: February 27, 2007
    Assignee: Floran Technologies Inc.
    Inventors: Jeffrey Schulhoff, Christian Schaal
  • Composition and method for cleaning surfaces
    Publication number: 20020094941
    Abstract: A composition and method for cleaning surfaces having deposits, such as drink water tanks, supply water wells, water filter systems, and distributor water lines. The composition contains in combination a cleaning solution and a disinfectant, such as hydrogen peroxide or peracidic acid. The cleaning solution can includes hydrochloric acid and/or phosphoric acid in combination with inhibitors, dyes and water. The composition is applied to deposits which have formed on these surfaces.
    Type: Application
    Filed: October 29, 2001
    Publication date: July 18, 2002
    Inventors: Jeffrey Schulhoff, Christian Schaal
  • Composition and method for cleaning drink water tanks
    Patent number: 6346217
    Abstract: A composition and method for cleaning drink water tanks. The composition contains in combination amidosulfonic acid, nitrilotriacetic acid, isopropanol and water. The composition is applied to deposit which have formed on the walls and other internal surfaces of a drink water tank.
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: February 12, 2002
    Assignee: Water Whole International, Inc.
    Inventor: Christian Schaal
  • Composition and method for cleaning surfaces
    Patent number: 6309470
    Abstract: A composition and method for cleaning surfaces having deposits, such as drink water tanks, supply water wells, water filter systems, and distributor water lines. The composition contains in combination a cleaning solution and a disinfectant, such as hydrogen peroxide or peracidic acid. The cleaning solution can includes hydrochloric acid and/or phosphoric acid in combination with inhibitors, dyes and water. The composition is applied to deposits which have formed on these surfaces.
    Type: Grant
    Filed: June 1, 2000
    Date of Patent: October 30, 2001
    Assignee: Water Whole International, Inc.
    Inventors: Jeffrey Schulhoff, Christian Schaal
  • Method and apparatus for the variable allocation of static inverters to at least one load
    Patent number: 5625546
    Abstract: An apparatus and a method for allocating static inverters to loads involves regulating an inverter to be switched to zero current flow at the instant of switching. Each inverter is connected to an input distributor for receiving inverter drive signals and to an output distributor for supplying power to a load. An equalizing regulator controls the share of total current generated by each inverter connected to the load limited by the capacity of the inverter. A total current regulator controls the total current supplied to the load limited by the total of the capacities of the inverters connected to the load.
    Type: Grant
    Filed: September 13, 1995
    Date of Patent: April 29, 1997
    Assignee: Inventio AG
    Inventor: Christian Schaal
  • Exhaust gas return system for auto-igniting internal combustion engines
    Patent number: 4085718
    Abstract: An exhaust gas return installation for auto-ignition internal combustion engines for the admixture of a part of the exhaust gases to the sucked-in air, in which a spring-loaded baffle disk acted upon by the suction air stream together with a valve acted upon by the exhaust counter-pressure control the exhaust gas admixture according to the output and the rotational speed of the internal combustion engine.
    Type: Grant
    Filed: February 2, 1977
    Date of Patent: April 25, 1978
    Assignee: Daimler-Benz Aktiengesellschaft
    Inventor: Christian Schaal