Patents by Inventor Jaroslav O. Olmr

Jaroslav O. Olmr 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).

  • Lawnmowing apparatus having grass collector fullness detector with elastic membrane
    Patent number: 5775077
    Abstract: A lawnmower includes a grass collector bin connected to a rotary blade by a chute. Mounted on the chute is a pressure-sensitive detector which senses when the bin is full, on the basis of a given pressure increase in the chute. The detector includes a microswitch having a sensing arm which contacts a center portion of an elastic membrane. The membrane communicates with the chute such that the center portion of the membrane is deflected in response to a given pressure increase in the chute, in order to actuate the switch. The membrane includes a bellows portion for increasing the distance by which the membrane can be deflected in response to the given pressure increase.
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: July 7, 1998
    Inventor: Jaroslav O. Olmr