Patents by Inventor Arnoldus Emanuel Ruthgerus Beeker

Arnoldus Emanuel Ruthgerus Beeker 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).

  • Patent number: 6695075
    Abstract: The soil sampler includes a sampling tube having a receiving space for receiving a soil sample, the receiving space being limited in a radial direction by a wall, being open in a distal direction for permitting soil to enter and in a proximal direction being limited by a transverse wall, the transverse wall having ducts for supplying and discharge fluid to the receiving space and a plug for closing the ducts, a free plug or piston being placed in the receiving space closely fitting in there and movable between the transverse wall and the distal area of the sampling tube and the transverse wall and the free plug or piston defining a sealed chamber for fluid when the free plug or piston is situated at a distance from the transverse wall.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: February 24, 2004
    Assignee: Eijkelkamp Agrisearch Equipment B.V.
    Inventor: Arnoldus Emanuel Ruthgerus Beeker
  • Publication number: 20030089526
    Abstract: Soil sampler comprising a sampling tube having a receiving space for receiving the soil sample to be taken, the receiving space being limited in radial direction by a wall, being open in distal direction for permitting soil to enter in it and in proximal direction being limited by a transverse wall, having line means for supplying and discharging fluid to the receiving space and with means for closing off the line means, a free plug or piston being placed in the receiving space closely fitting in there and moveable between the transverse wall and the distal area of the sampling tube and the transverse wall and the stopper or piston defining a sealed chamber for fluid when the stopper or piston is situated at a distance from the transverse wall.
    Type: Application
    Filed: November 9, 2001
    Publication date: May 15, 2003
    Inventor: Arnoldus Emanuel Ruthgerus Beeker