Patents by Inventor Donald Simson Mahoney

Donald Simson Mahoney 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).

  • Patent number: 6526879
    Abstract: A press for fabrication of building components including: an upper platen; a lower platen; the upper platen and/or lower platen movable towards and away from the other; a first and second hydraulic device located on a base, each hydraulic device including; a cylinder; a piston located in the cylinder defining a first and a second chamber in the cylinder, the piston sealingly engaging the cylinder and movable in the cylinder; and a piston rod connected to the piston and extending through the second chamber to engage the upper or lower platen; a pump to pump hydraulic fluid into the first chamber of the first hydraulic device; and a valve in fluid communication with the first chambers of the first and second hydraulic devices to selectively withdraw hydraulic fluid from the first chamber of either or both the first and second hydraulic devices to align the upper and lower platens.
    Type: Grant
    Filed: February 29, 2000
    Date of Patent: March 4, 2003
    Assignee: Pryda (Aust.) PTY LTD
    Inventor: Donald Simson Mahoney
  • Publication number: 20010046436
    Abstract: A transfer apparatus for articles is provided comprising:
    Type: Application
    Filed: May 29, 2001
    Publication date: November 29, 2001
    Applicant: Becfab Equipment Pty Ltd
    Inventor: Donald Simson Mahoney