Patents by Inventor Jerald C. Todd

Jerald C. Todd 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: 5335531
    Abstract: A head assembly for a compression tool including a pair of opposite, rotatably mounted jaw members. Each jaw member having a compression end which is moveable between a first position in engagement with the compression end of the opposite jaw member and a second position wherein the compression ends are spaced apart from each other. The compression end of each jaw member having an interior nib surface, a semi-circular groove surface, an engagement surface and distal compression surface. The head assembly includes a center nib which is operably associated with the interior nib surface of each jaw member to provide three generally equidistant points of contact around the circumference of a connector that is placed therebetween for compression.
    Type: Grant
    Filed: May 4, 1993
    Date of Patent: August 9, 1994
    Assignee: Square D Company
    Inventors: Steven W. Mann, Jerald C. Todd
  • Patent number: 4969616
    Abstract: A straight line, side opening dead end cable clamp includes a pivotally mounted keeper that is spring loaded on the cable clamp body to urge the keeper into an open position. The body of the clamp has a very low profile permitting it to be formed in a mold that has a straight parting line. A cable receiving groove is formed in the body at an angle to bring the axis of the cable in line with the supporting clevis. The keeper has an elongated cable compression member that is maintained in alignment with the cable receiving groove. A single and a double U bolt design are disclosed. The compressive force applied to the cable by the cable compression member and the cable supported groove in the body is maximum at the supportive end of the clamp and minimum at the mouth of the clamp. A double loop spring member couples the keeper to the body and urges the keeper to an open position to permit access to the cable receiving groove.
    Type: Grant
    Filed: November 2, 1988
    Date of Patent: November 13, 1990
    Assignee: Square D Company
    Inventors: Kenneth P. Apperson, William N. Parrott, Jerald C. Todd
  • Patent number: 4934172
    Abstract: A compression tool (10) crimps both cylindrical (12) and "H" type (75) connectors. The jaws (22) of the compression tool have a first part which is defined by a nib area in which there is a nib (44) on either jaw and a base nib (46) which is moved into the nib area by a yoke (36) which is in turn moved by a manually operated hydraulic section (18) of the tool. Operation of the hydraulic section causes the nibs to converge upon a connector placed therebetween to effect the crimp. Alternatively, a connector, e.g., an "H" type connector, may be placed in a second part of the jaws. The second part includes opposing "C" shaped sections which also effect a crimp in response to the hydraulic operation. Additionally, the tool is adaptable to receive dies (76 and 78) which allow customized crimping and cutting.
    Type: Grant
    Filed: March 27, 1989
    Date of Patent: June 19, 1990
    Assignee: Square D Company
    Inventors: Austin L. Bush, Jerald C. Todd
  • Patent number: 4667502
    Abstract: A hydraulic apparatus for converting hydraulic pressure into mechanical movement for operating a tool or other device, operated by a pump block having a bore therein and a moveable plunger disposed within said bore. A cylinder is disposed over the pump block. The cylinder is captively held over the pump block and is moveable with respect thereto along the common axis. A fluid reservoir is defined between the cylinder and the pump block, and contains the hydraulic fluid. The plunger is operated by a pair of moveable arms secured to the apparatus and causes pressure to build in the fluid in an inlet chamber which communicates between the pump block and the cylinder. A pressure control valve is mounted adjacent the pump block and limits the hydraulic pressure which may be applied in the system. A release valve and apparatus is provided for releasing the hydraulic pressure and returning it to the reservoir.
    Type: Grant
    Filed: April 26, 1985
    Date of Patent: May 26, 1987
    Assignee: Square D Company
    Inventors: Austin L. Bush, Kenneth P. Apperson, Jerald C. Todd
  • Patent number: 4581894
    Abstract: A hydraulic apparatus for converting hydraulic pressure into mechanical movement for operating a tool or other device, operated by a pump block having a bore therein and a moveable plunger disposed within said bore. A cylinder is disposed over the pump block. The cylinder is captively held over the pump block and is moveable with respect thereto along the common axis. A fluid reservoir is defined between the cylinder and the pump block, and contains the hydraulic fluid. The plunger is operated by a pair of moveable arms secured to the apparatus and causes pressure to build in the fluid in an inlet chamber which communicates between the pump block and the cylinder. A pressure control valve is mounted adjacent the pump block and limits the hydraulic pressure which may be applied in the system. A release valve and apparatus is provided for releasing the hydraulic pressure and returning it to the reservoir.
    Type: Grant
    Filed: July 9, 1985
    Date of Patent: April 15, 1986
    Assignee: Square D Company
    Inventors: Austin L. Bush, Kenneth P. Apperson, Jerald C. Todd
  • Patent number: 4480460
    Abstract: A compression tool head assembly for compressing a metal connector about a conductor to be connected. The assembly is adaptable to make both parallel tap connections and sleeve connections.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: November 6, 1984
    Assignee: Square D Company
    Inventors: Austin L. Bush, Kenneth P. Apperson, Jerald C. Todd
  • Patent number: D277749
    Type: Grant
    Filed: July 20, 1982
    Date of Patent: February 26, 1985
    Assignee: Square D Company
    Inventor: Jerald C. Todd