Patents by Inventor Henry A. N. Holland

Henry A. N. Holland 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
  • Pipe lining apparatus
    Patent number: 4329937
    Abstract: This invention relates to apparatus for lining or coating the interior of lengths of large diameter, e.g. sixty inch (152.4 cm) pipe by applying fluent material thereto, and more specifically relates to such apparatus wherein a pipe liner vehicle travels through the pipe applying the material as it moves therethrough.
    Type: Grant
    Filed: March 18, 1981
    Date of Patent: May 18, 1982
    Assignee: Raymond International Builders, Inc.
    Inventor: Henry A. N. Holland