Patents by Inventor Edgar G. Henry

Edgar G. Henry 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).

  • Pneumatic impact tool having improved vibration and noise attenuation
    Patent number: 5626199
    Abstract: Vibration and noise are considerably reduced in a pneumatic impact tool by structure generating a novel vibration dampening action during tool operation. Dampening chamber members in the tool undergo compression when the reciprocating work member recoils as a method for such attenuation. Resilient seal members are further included in the tool construction to assist with the vibration dampening effect. Inclusion of oppositely biased spring members in the tool construction still further reduces the vibration attenuation.
    Type: Grant
    Filed: July 5, 1995
    Date of Patent: May 6, 1997
    Assignee: T.C. Service Company
    Inventors: Edgar G. Henry, Frank W. Schossler, Donald K. Kuhl
  • Pneumatic impact tool having improved vibration and noise attenuation
    Patent number: 5573075
    Abstract: Vibration and noise are considerably reduced in a pneumatic impact tool with structure providing novel vibration dampening and vibration isolation. The required vibration reducing components employ particular vibration dampening chamber members which dynamically interact with further included multi-part spring and elastomeric members.
    Type: Grant
    Filed: July 5, 1995
    Date of Patent: November 12, 1996
    Assignee: T.C. Service Company
    Inventors: Edgar G. Henry, Frank W. Schossler, Donald K. Kuhl
  • Pneumatic impact tool having improved vibration and noise attenuation
    Patent number: 5407018
    Abstract: Vibration and noise are considerably reduced in a pneumatic impact tool employing a reciprocating work member such as a chisel or hammer by providing composite elastomeric attenuation element in the tool construction. A laminar configuration of the attenuation elements is employed having dual outer layers of elastomeric material in combination with a rigid inner layer and with such attenuation elements being located in the tool construction for physical impact by the work member.
    Type: Grant
    Filed: January 10, 1994
    Date of Patent: April 18, 1995
    Assignee: TC Services
    Inventor: Edgar G. Henry