Patents Represented by Attorney Albert W. Preston

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  • Ink jet apparatus with a flexible piezoelectric member and method of operating same
    Patent number: 4395719
    Abstract: An ink jet comprises an elastic tubular member (14) characterized by piezoelectric properties. The tubular member (14) is terminated in an orifice (26) adapted to pass droplets of ink when the chamber formed within the tubular member (14) is reduced in size. The piezoelectric properties are provided by a substantially homogeneous mixture of piezoelectric material and an elastic binder.
    Type: Grant
    Filed: January 5, 1981
    Date of Patent: July 26, 1983
    Assignee: Exxon Research and Engineering Co.
    Inventors: Henry A. Majewski, William Salmre, R. Hugh Van Brimer