Patents by Inventor Mark N. Chaffin

Mark N. Chaffin 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: 8192616
    Abstract: A pressurized wastewater effluent chlorination system including a treatment tank defining a contact chamber and an aeration chamber. The treatment tank receives wastewater effluent. The system includes a pressure vessel within a liquid chlorine storage container positioned in or near the treatment tank. Preferably, the pressure vessel is a floating vessel having a check valve at its bottom, enabling the vessel to fill with a predetermined amount or measured charge of chlorine depending on the position of a float on the vessel. In response to a timer control or float switch, a valve operates to communicate air pressure from a compressor to the vessel to displace the measured charge of liquid chlorine into the wastewater effluent in the contact chamber. Effluent flow and air discharge into the contact chamber enhances mixing of the chlorine and the effluent.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: June 5, 2012
    Inventor: Mark N. Chaffin
  • Publication number: 20110139691
    Abstract: A pressurized wastewater effluent chlorination system including a treatment tank defining a contact chamber and an aeration chamber. The treatment tank receives wastewater effluent. The system includes a pressure vessel within a liquid chlorine storage container positioned in or near the treatment tank. Preferably, the pressure vessel is a floating vessel having a check valve at its bottom, enabling the vessel to fill with a predetermined amount or measured charge of chlorine depending on the position of a float on the vessel. In response to a timer control or float switch, a valve operates to communicate air pressure from a compressor to the vessel to displace the measured charge of liquid chlorine into the wastewater effluent in the contact chamber. Effluent flow and air discharge into the contact chamber enhances mixing of the chlorine and the effluent.
    Type: Application
    Filed: February 22, 2011
    Publication date: June 16, 2011
    Inventor: MARK N. CHAFFIN
  • Patent number: 7892422
    Abstract: A pressurized wastewater effluent chlorination system including a treatment tank defining a contact chamber and an aeration chamber. The treatment tank receives wastewater effluent. The system includes a pressure vessel within a liquid chlorine storage container positioned in or near the treatment tank. Preferably, the pressure vessel is a floating vessel having a check valve at its bottom, enabling the vessel to fill with a predetermined amount or measured charge of chlorine depending on the position of a float on the vessel. In response to a timer control or float switch, a valve operates to communicate air pressure from a compressor to the vessel to displace the measured charge of liquid chlorine into the wastewater effluent in the contact chamber. Effluent flow and air discharge into the contact chamber enhances mixing of the chlorine and the effluent.
    Type: Grant
    Filed: August 9, 2007
    Date of Patent: February 22, 2011
    Inventor: Mark N. Chaffin
  • Publication number: 20080035539
    Abstract: A pressurized wastewater effluent chlorination system including a treatment tank defining a contact chamber and an aeration chamber. The treatment tank receives wastewater effluent. The system includes a pressure vessel within a liquid chlorine storage container positioned in or near the treatment tank. Preferably, the pressure vessel is a floating vessel having a check valve at its bottom, enabling the vessel to fill with a predetermined amount or measured charge of chlorine depending on the position of a float on the vessel. In response to a timer control or float switch, a valve operates to communicate air pressure from a compressor to the vessel to displace the measured charge of liquid chlorine into the wastewater effluent in the contact chamber. Effluent flow and air discharge into the contact chamber enhances mixing of the chlorine and the effluent.
    Type: Application
    Filed: August 9, 2007
    Publication date: February 14, 2008
    Inventor: Mark N. Chaffin
  • Patent number: 6932912
    Abstract: A liquid chlorine supply canister is connected by a supply tube and venturi chamber to a recirculating pipe that discharges into a storage-mixing tank into which sewage effluent is received from a source. The supply tube is provided with a filter/orifice assembly. A pump causes circulation of sewage effluent through the venturi chamber and develops a suction in the supply tube which draws chlorine through the filter/orifice assembly and into the flowing sewage effluent stream. A recirculation pipe from the venturi chamber into the tank, causes turbulence of sewage effluent and dissolved chlorine (either solution or gaseous) within the tank for efficient mixing of the chlorine component with the constituents of the sewage effluent. A crossover tubing is connected with the pump discharge pipe and the recirculation pipe and enhances the induction of chlorine (disinfected) effluent into an effluent discharge pipe leading to a spray field.
    Type: Grant
    Filed: February 18, 2003
    Date of Patent: August 23, 2005
    Inventor: Mark N. Chaffin
  • Publication number: 20030155311
    Abstract: A liquid chlorine supply canister is connected by a chlorine supply tube and venturi chamber to a recirculating pipe that discharges into a storage-mixing tank into which sewage effluent is received from a source. The chlorine solution supply tube within the canister is provided with a filter/orifice assembly having an orifice dimension that is designed for the size of the wastewater treatment system. A pump within the storage-mixing tank causes circulation of sewage effluent through the venturi chamber and develops a suction in the chlorine solution supply tube which draws chlorine through the filter and orifice assembly, through the supply tubing and into the flowing sewage effluent stream to the storage-mixing tank as well as to a spray field.
    Type: Application
    Filed: February 18, 2003
    Publication date: August 21, 2003
    Inventor: Mark N. Chaffin