Patents by Inventor James E. Cheshire

James E. Cheshire 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: 7077884
    Abstract: A hydrogen sulfide scrubber includes first and second scrubber tanks with scrubber media contained therein. Scrubbing solution circulators each include a dispenser for dispensing scrubbing solution into contact with the scrubber media, a sump for collecting the scrubbing solution after contact with the scrubber media, and a circulating pump for circulating the scrubbing solution from the sump back to the dispenser after contact with the scrubber media. A polymeric amine supply is provided for supplying a polymeric amine to the scrubbing solution in the second tank. The scrubbing solution in the first tank may be charged with the polymeric amine by a charging line extending from the second tank to the first tank. In other embodiments, a regenerative blower and associated nozzle may be used to generate a scrubbing solution mist in the space beneath the scrubber media and above the sump.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: July 18, 2006
    Assignee: Precision Control Technology, Inc.
    Inventors: Jerry M. Davis, James E. Cheshire