Patents by Inventor Clair H. Putnam

Clair H. Putnam 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).

  • Briquets of hydrated calcium hypochlorite
    Patent number: 4349493
    Abstract: A novel briquet is comprised of compressed hydrated calcium hypochlorite particles having a calcium hypochlorite content in the range from about 55 to about 75 percent by weight, a water content in the range from about 4 to about 10 percent by weight and a compression strength of from about 2 to about 95 kilograms. The briquets may be used in sanitizing water supplies as they dissolve slowly to release available chlorine at a controlled rate.
    Type: Grant
    Filed: December 22, 1980
    Date of Patent: September 14, 1982
    Assignee: Olin Corporation
    Inventors: John M. Casberg, Clair H. Putnam
  • Decomposition inhibitors for chloroisocyanurates
    Patent number: 4149988
    Abstract: Decomposition of chloroisocyanurates such as trichloroisocyanuric acid or alkali metal dichloroisocyanurates is inhibited by the presence of alkaline earth metal sulfates. The sulfates may be used in compositions with a solid chloroisocyanurate or they may be added separately, for example, to packages containing the chloroisocyanurate.
    Type: Grant
    Filed: May 26, 1977
    Date of Patent: April 17, 1979
    Assignee: Olin Corporation
    Inventors: James P. Brennan, John M. Casberg, Clair H. Putnam