Patents by Inventor Sterling L. Carroll

Sterling L. Carroll 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).

  • Publication number: 20030222033
    Abstract: A filtration system for processing effluent from septic-based sanitation systems includes at least one treatment tank for receiving effluent from a septic tank. The tank includes filtering media therein, the filtering media adapted for filtering the effluent to produce filtered effluent. The system includes structure for recirculating the filtered effluent, wherein a first portion of the filtered effluent is directed back onto the filtering media and a second portion of the filtered effluent is directed out of said tank. The system can obviate the need for a drain field in septic-based sanitation systems.
    Type: Application
    Filed: May 29, 2002
    Publication date: December 4, 2003
    Inventors: Paul L. Carroll, Sterling L. Carroll
  • Patent number: 6238563
    Abstract: Effluent from a septic tank is trickled through a first filter canister. The thus filtered effluent is recycled a plurality of times through the same filter canister, further to cleanse the effluent. A small portion of the recycling effluent is directed outward into a drip irrigation system. A second filter canister, not in line with the first canister, also receives some of the recycling, filtered effluent, for plural recycles therethrough, to enhance the filtering process, at the same time that other of the filtered effluent is being recycled through the first filter canister. The filtered effluent from the two canisters are permitted to combine prior to subsequent recycling.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: May 29, 2001
    Assignee: Carroll Industries, Inc.
    Inventors: Paul L. Carroll, II, Sterling L. Carroll