Patents by Inventor Jacobus P. Jacobs

Jacobus P. Jacobs 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).

  • Spraying of plants, and apparatus therefor
    Patent number: 4397420
    Abstract: The liquid reservoir tank of plant spraying equipment of the haversack type is pressurized by a pair of foot pumps worn by the operator under his shoes. Each pump comprises a resiliently compressible hollow cushion which is compressed by the operator's weight as he places the relevant foot on the ground and which expands when he lifts that foot from the ground, air being drawn into the cushion as it expands and being displaced from it into the tank as the cushion is compressed.
    Type: Grant
    Filed: August 23, 1982
    Date of Patent: August 9, 1983
    Assignee: Caraid Patents, N.V.
    Inventor: Jacobus P. Jacobs
  • Gaseous fluid pump and liquid spray apparatus incorporating such a pump
    Patent number: 4384675
    Abstract: Co-operating formations (28 and 29) are provided within the chamber formed by a resiliently deformable air pump body (13) which has concertina sidewalls (23) so that the enclosure surrounded by the sidewalls (23) is substantially filled by the formations (28 and 29) when it is collapsed.
    Type: Grant
    Filed: January 28, 1981
    Date of Patent: May 24, 1983
    Assignee: Caraid Patents N.V.
    Inventor: Jacobus P. Jacobs