Patents by Inventor John E. Santo

John E. Santo 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).

  • Method for increasing the cross-flow microfiltration fluxes of waste waters containing suspended solids and/or emulsified oil
    Patent number: 4313830
    Abstract: A method for increasing the cross-flow microfiltration fluxes of waste waters containing suspended solids and/or emulsified oil through microporous thermoplastic tubes by including therein a calcium compound selected from Ca(OH).sub.2 or CaSO.sub.4. The calcium compound is present in the waste waters in an amount ranging from above the solubility limit of the compound to about forty (40) percent by weight of the waste waters. The Ca(OH).sub.2 can be added directly to the waste water. The CaSO.sub.4 can be included by reacting H.sub.2 SO.sub.4 and Ca(OH).sub.2 in the waste waters to form CaSO.sub.4 in situ. Alternatively, wet CaSO.sub.4 can be formed by reacting H.sub.2 SO.sub.4 with Ca(OH).sub.2 outside the water and then added to to the waste waters in the required amount.
    Type: Grant
    Filed: May 23, 1980
    Date of Patent: February 2, 1982
    Assignee: Hydronautics, Incorporated
    Inventors: Marshall P. Tulin, John E. Santo