Patents by Inventor Wally Z. Walters

Wally Z. Walters 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).

  • Method and apparatus for preventing air pollution by the entrainment of particulate material
    Patent number: 4586599
    Abstract: Methods of and systems for preventing air pollution in the handling and storing of particulate solids out-of-doors in bulk form; i.e., in a pile. A windfoil arrangement keeps material from being entrained in wind blowing over the pile and thereby causing an air pollution problem. The problem is particularly acute when material is being dumped; it also arises when wind strips the particulate material from the pile, and it can result in the particulate material being scattered over a widespread area (typically one mile or more in radius) which indicates that the air pollution is not restricted to the immediate vicinity of the area in which the material is stored.
    Type: Grant
    Filed: October 20, 1983
    Date of Patent: May 6, 1986
    Inventor: Wally Z. Walters
  • Electrostatic reproduction process employing novel transfer paper
    Patent number: 3933489
    Abstract: Electrostatic reproduction processes utilizing papers which have a surface resistivity of not more than 0.9-3 .times. 10.sup.11 IPC ohmn/square at a relative humidity of 25 percent and a surface resistivity of not more than 25-60 .times. 10.sup.11 IPC ohms/square at a relative humidity of 10 percent.
    Type: Grant
    Filed: February 21, 1974
    Date of Patent: January 20, 1976
    Assignee: Preco Corporation
    Inventor: Wally Z. Walters