Patents by Inventor Philp D. Trainer

Philp D. Trainer 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).

  • Alkaline cell with semisolid cathode
    Patent number: 6207322
    Abstract: An alkaline cell is disclosed having a cathode comprising manganese dioxide wherein the cathode is a semisolid during discharge of the cell. The cell has an anode comprising zinc and an electrolyte comprising potassium hydroxide. The semisolid cathode comprising manganese dioxide may be in the form of a putty or paste. The semisolid cathode reduces cathode polarization effects and results in increased manganese dioxide utilization (Amp-hr/g), particularly at high current drain, between about 0.5 and 2 Amp. The porosity of the cathode is between about 45% and 70%, and the volume ratio of electrolyte solution in the cathode to the solids in the cathode is at a value between about 0.7 and 2.3.
    Type: Grant
    Filed: November 16, 1998
    Date of Patent: March 27, 2001
    Assignee: Duracell Inc
    Inventors: G. Stephen Kelsey, Purush Chalilpoyil, Philp D. Trainer, Alex Kaplan, George Cintra, Viet H. Vu, John D. Sillesky