Patents by Inventor Edwin L. Glasson

Edwin L. Glasson 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).

  • Razor blades
    Patent number: 4720918
    Abstract: A razor blade edge tip has a cross-sectional shape defined, over up to 40 .mu.m from the extreme edge by the equation w=ad.sup.n, in which w is the tip chord thickness in .mu.m at a distance d from the extreme edge; a is factor of proportionality not greater than 0.8, and n is an exponent having a value in the range 0.65 to 0.75.This results in a tip shape which is relatively thick very close to the edge but whose overall cross-section is narrow, compared with known tip shapes.
    Type: Grant
    Filed: June 4, 1986
    Date of Patent: January 26, 1988
    Inventors: Francis R. Curry, Joan Pumfrey, Edwin L. Glasson, Romuald Kozlowski, deceased, by Jadwiga Kozlowska, legal representative