Patents by Inventor David H. O'Hare

David H. O'Hare 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).

  • Electrically heated humidifying apparatus
    Patent number: 4203027
    Abstract: An electrically heated humidifying apparatus includes a humidifier element detachably secured to a humidifier heater with the base of the humidifier element in engagement with the electric heating plate of the humidifier heater. The humidifier element is secured to the humidifier heater by an intermediate adaptor having a ring portion with spaced lugs interfitting with correspondingly spaced lugs on the humidifier heater and a horse-shoe shaped portion adapted to slidably receive the humidifier element and engage with an annular shoulder on the humidifier element.
    Type: Grant
    Filed: December 21, 1977
    Date of Patent: May 13, 1980
    Assignee: Fisher & Paykel Limited
    Inventors: David H. O'Hare, Christopher G. Brickell, Lindsay G. Spilman