Patents by Inventor Eddy Allen

Eddy Allen 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).

  • Filtration process for separating particles from liquid coolants in lens grinding devices
    Patent number: 4122008
    Abstract: A process for separating fine particles entrained in the liquid coolant of lens generating or edging device comprising passing the contaminated coolant through a filter medium made of a non-woven fabric comprising synthetic filaments having a denier of from about 3.5 to about 5.0; the fabric having a density of from about 0.3 to 2.0 oz. per square yard, the reduction in liquid coolant flow rate caused by the filter medium being less than about 1.0%. The present invention is effective in removing about 97% to 99% of particles having a size of about 5 microns or larger.
    Type: Grant
    Filed: February 10, 1977
    Date of Patent: October 24, 1978
    Inventor: Eddy Allen