Patents by Inventor James Bandura

James Bandura 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 and apparatus for starting diesel type hammers
    Patent number: 4580641
    Abstract: A self starting diesel hammer (20) having a tubular casing (30) inside which a heavy ram (32) is driven up by means of an explosion and then falls back onto an anvil (46) while compressing air under the ram so that fuel injected under the ram (32) causes the air to explode and drive the ram (32) up again, and a source of compressed gas (106) and a valve (110) arranged to direct the gas under the ram (32) to throw it upwardly in the casing (30) to start operation of the hammer.
    Type: Grant
    Filed: April 28, 1983
    Date of Patent: April 8, 1986
    Assignee: Raymond International Builders, Inc.
    Inventors: Henry A. N. Holland, James Bandura
  • Distributor head for a pipe lining machine
    Patent number: 4414918
    Abstract: A distributor head for throwing mortar onto the wall of a pipe (12) being lined. A set of inner rotating vanes (56) throw the mortar onto an outwardly flared conical surface (40 ) and the mortar travels along the surface (40) to the outer vanes (48) on its outer edge from which the mortar is thrown in a high velocity, dense stream against the pipe wall. The inner vanes are individually and releasably fitted into a collar (60) at the inner edge of the flared conical surface.
    Type: Grant
    Filed: February 11, 1982
    Date of Patent: November 15, 1983
    Assignee: Raymond International Builders, Inc.
    Inventors: Henry A. Nelson Holland, James Bandura