Patents by Inventor Jacobus F. Geerts

Jacobus F. Geerts 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).

  • Torque release mechanism for an electronically powered tool
    Patent number: 5419745
    Abstract: Transmission between electric motor and tool shaft, for instance for hand tools such as an electric screwdriver and the like, which transmission is provided with an adjustable breaking coupling for discontinuing the drive torque on the tool shaft when a predetermined resistance moment on this tool shaft is exceeded, wherein the breaking coupling in the form of two mutually slidable parts is provided with a signal generator for controlling a member influencing the motor feed, which signal generator comes into operation as soon as the two parts slide relative to one another when the set torque is exceeded, so that a disengagement takes place between motor and tool shaft immediately after the desired resistance moment is exceeded, wherein the inertia of the rotating parts no longer has any effect on the tool shaft so that it stops immediately.
    Type: Grant
    Filed: September 16, 1994
    Date of Patent: May 30, 1995
    Assignee: Emerson Electric Co.
    Inventors: Antony J. Moolenaar, Jan P. Houben, Jacobus F. Geerts
  • Transmission for electrically driven tool
    Patent number: 5385512
    Abstract: Transmission between electric motor and tool shaft, for instance for hand tools such as an electric screwdriver and the like, which transmission is provided with an adjustable breaking coupling for discontinuing the drive torque on the tool shaft when a predetermined resistance moment on this tool shaft is exceeded, wherein the breaking coupling in the form of two mutually slidable parts is provided with a signal generator for controlling a member influencing the motor feed, which signal generator comes into operation as soon as the two parts slide relative to one another when the set torque is exceeded, so that a disengagement takes place between motor and tool shaft immediately after the desired resistance moment is exceeded, wherein the inertia of the rotating parts no longer has any effect on the tool shaft so that it stops immediately.
    Type: Grant
    Filed: July 31, 1992
    Date of Patent: January 31, 1995
    Assignee: Emerson Electric Co.
    Inventors: Antony J. Moolenaar, Jan P. Houben, Jacobus F. Geerts