Patents by Inventor John E. Hazelwood

John E. Hazelwood 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: 6834644
    Abstract: An ignition assembly provides a current to a spark plug to combust fuel in a cylinder of an internal combustion engine. The ignition coil assembly includes a primary winding defining a central axis. A secondary winding is wrapped about the primary winding coaxial with the central axis. The ignition coil assembly also includes a central core extending through the primary winding coaxial with the central axis. The central core includes a plurality of core components each having a single exterior surface that is continuous. In addition, each of the single exterior surface extends through an arcuate path.
    Type: Grant
    Filed: February 3, 2004
    Date of Patent: December 28, 2004
    Assignee: Delphi Technologies, Inc.
    Inventors: Albert Anthony Skinner, John E Hazelwood, Thomas B. Bennett
  • Publication number: 20040027222
    Abstract: An ignition coil for a spark ignition internal combustion engine has a central core. The central core is cylindrical in shape, and includes a plurality of laminations composed of magnetically-permeable plates that are sector-shaped. The sector-shaped laminations improve the fill percentage allotted for core material. The central core has a central bore extending therethrough that allows a return of a primary winding lead, allowing an odd number of primary winding layers.
    Type: Application
    Filed: August 6, 2002
    Publication date: February 12, 2004
    Inventors: John E. Hazelwood, Viorel N. Moga, Thomas B. Bennett, Albert Anthony Skinner
  • Publication number: 20030106956
    Abstract: A coil winding system is provided for making a secondary winding for an automotive ignition coil. The system includes a roller configured to apply a holding force to wire being dispensed from a wire nozzle onto a bobbin. The nozzle and roller are moved by a drive mechanism under control of a controller from one axial end to the other axial end of the bobbin for winding the bobbin in a progressive winding fashion. The roller allows an increase in the winding angle of the layers, which reduces the voltage difference between adjacent layers, thereby reducing incidence of dielectric break down in that region.
    Type: Application
    Filed: December 10, 2001
    Publication date: June 12, 2003
    Inventors: Viorel N. Moga, John E. Hazelwood
  • Patent number: 4220257
    Abstract: A separator for springs and similar parts has a housing provided with an opening for facilitating feeding of tangled springs into the housing. A striker assembly, in the form of a disc arranged opposite the opening in the housing and provided with one or more blades, imparts energy to the tangled springs. The inner surface of the housing has a plurality of protuberances, and the like, for promoting a spinning action of springs energized by the striker assembly. Free fall of tangled springs into the path of the striker blades sets up a natural vibration or oscillation of the tangled springs that, due to the contact angle along the radius of the spring wire, drives them apart. Further, the striker blades impart a rotating motion to the tangled springs in conjunction with the traction imparted to the springs by the protuberances on the inner surface of the housing when the springs come off the striker blades.
    Type: Grant
    Filed: July 27, 1978
    Date of Patent: September 2, 1980
    Inventor: John E. Hazelwood, Sr.
  • Patent number: 4078994
    Abstract: A method and apparatus for separating entangled parts includes a receptacle container mounted for reciprocating movement in a vertical direction and having a grid structure at the bottom thereof for supporting and separating component parts which are entangled. In order to overcome the unbalance of the reciprocating container or parts bin a counterweight structure is provided which will effectively counteract or neutralize the unbalance created by the reciprocation of the parts bin. A drive motor through reduction means and connecting rod and crankshaft structure is appropriately connected to both the parts bin and the counterweight structure. The grid structure of the parts bin may be replaced with different size spacing grids for different size of parts to be untangled. The parts are untangled by the method of shaking them in a vertical direction and allowing the parts to be so vibrated that they tend to separate and become unentangled.
    Type: Grant
    Filed: April 29, 1976
    Date of Patent: March 14, 1978
    Inventor: John E. Hazelwood, Sr.
  • Patent number: 3966040
    Abstract: A combined vibratory feeder drive unit, vibratory feeder bowl, and parts separator receives springs and spring-like parts in bulk, unoriented, and tangled condition and untangles the springs and other parts and feeds them to an operator or automatic parts placing device. The parts separator is supported in a central opening in the bowl by a column arranged passing through the drive unit. Parts are fed from the separator into a pocket formed in the track of the vibratory bowl to prevent the parts from being retangled with other parts already on the track, while parts still tangled when fed from the separator will eventually be fed back into the separator until they become untangled and can be properly oriented by the track of the vibratory bowl.
    Type: Grant
    Filed: March 5, 1975
    Date of Patent: June 29, 1976
    Inventor: John E. Hazelwood