Patents by Inventor John M. Dyson

John M. Dyson 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).

  • Concrete
    Patent number: 4383862
    Abstract: A method of producing aerated concrete, that is, concrete in which a gas is entrained, comprises forming a mortar mix, which includes all the components of the concrete except for the gas. The mix is then pumped at a predetermined rate, to blending means. Gas is fed under pressure to blending means via control valves.The blending of the mix with the gas takes place in a substantially closed chamber.
    Type: Grant
    Filed: October 13, 1981
    Date of Patent: May 17, 1983
    Assignee: Domocon S.A.
    Inventor: John M. Dyson