Patents by Inventor Adam Jachowicz

Adam Jachowicz 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 making foundry moulds and cores
    Patent number: 4326578
    Abstract: A method for making foundry moulds and cores where after preparation of the moulds and cores having a sand composition of a low strength up to 0.03 MPa, a cooling medium is introduced into the mould cavity, preferably liquid nitrogen, in an amount to provide hardening of only the surface layer of a required sufficient to reproduce the shape of the mould cavity.
    Type: Grant
    Filed: February 19, 1980
    Date of Patent: April 27, 1982
    Assignee: Instytut Odlewnictwa
    Inventors: Andrzej Pajak, Tadeusz Olszowski, Antoni Mazur, deceased, Mariusz Holtzer, Andrzej Marzencki, Adam Jachowicz