Patents Assigned to Charles Bonnici
  • Ventilator having insert for controlling moisture and method of making same
    Patent number: 4512243
    Abstract: A ventilator device for allowing escape of air from enclosed spaces such as a building includes a unitary housing provided with an insert for controlling the flow of mositure therethrough. The insulator includes a pair of insulative, tubular members between which there is sandwiched a fabric-like foraminous membrane which permits passage of moisture laden air outwardly through the ventilator but prevents moisture in the form of liquid or droplets from returning into the building through the ventilator.
    Type: Grant
    Filed: July 23, 1982
    Date of Patent: April 23, 1985
    Assignee: Charles Bonnici
    Inventors: James W. Ballard, Larry R. Ballard
  • One-piece roof vent device and methods of constructing and utilizing same
    Patent number: RE31549
    Abstract: A unitary metal vent apparatus for securement to the roof of a building is formed from a single aluminum disk, into the form of a first flange portion, a tubular second portion, a cap-shaped third portion, and a vent hole portion disposed between the tubular portion and the cap portion. Preferably, the apparatus is produced by spinning a tubular protrusion in an aluminum disk, drilling vent holes, and collapsing the end of the tubular protrusion to form a cap-shaped portion.
    Type: Grant
    Filed: October 3, 1980
    Date of Patent: April 10, 1984
    Assignee: Charles Bonnici
    Inventors: James W. Ballard, Larry R. Ballard