Patents by Inventor Steven Farkas

Steven Farkas 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).

  • Calcium alumina cement lined pipe
    Patent number: 5955162
    Abstract: Cast iron pipe and other elongated hollow articles are lined with a cementitious mortar for certain applications, such as the transmission of potable water or sewage. To improve the resistance to attack from acids and to provide a crack and holiday free cement lining, a calcium alumina cement is used to line the article. A plasticizer such as fireclay is added to the calcium alumina cement prior to its application. The cement lined article is then coated with an asphaltic based coating and then cured in a high humidity environment.
    Type: Grant
    Filed: August 19, 1996
    Date of Patent: September 21, 1999
    Assignee: AMSTED Industries Incorporated
    Inventors: C. Gilmer Loving, Steven Farkas
  • Method for lining pipe with calcium alumina cement
    Patent number: 5585141
    Abstract: Cast iron pipe and other elongated hollow articles are lined with a cementitious mortar for certain applications, such as the transmission of potable water or sewage. To improve the resistance to attack from acids and to provide a crack and void spot free cement lining, a calcium alumina cement is used to line the article. A plasticizer such as fireclay is added to the calcium alumina cement prior to its application. The cement lined article is then coated with an asphaltic based coating and then cured in a high humidity environment.
    Type: Grant
    Filed: July 1, 1994
    Date of Patent: December 17, 1996
    Assignee: Amsted Industries Incorporated
    Inventors: C. Gilmer Loving, Steven Farkas