Patents by Inventor Wynand M. Goyarts

Wynand M. Goyarts 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).

  • Apparatus and process for using a self-aligning bearing
    Patent number: 4771144
    Abstract: An apparatus and process for using a self-aligning bearing having a ball movably seated in a socket mounted in a wall of an explosion-proof enclosure and slidably receiving a shaft for transferring motion from the outside to the electrical equipment inside of the enclosure. The abutting surfaces between the ball and socket of the bearing and the ball and the shaft have minimum flame path lengths to meet minimum safety requirements for extinguishing electrical arcing passing along such abutting surfaces.
    Type: Grant
    Filed: April 30, 1987
    Date of Patent: September 13, 1988
    Assignee: Simmons-Rand Corporation
    Inventor: Wynand M. Goyarts
  • Process for making an enclosure outlet connection device
    Patent number: 4767901
    Abstract: An outlet connection device transfers motion from outside to inside an explosion proof enclosure and includes a process for using a self-aligning bearing retained in a wall of the enclosure. The self-aligning bearing has flame paths selected to meet minimum safety requirements and contains a shaft for transferring either rotary, axial or joy-stick motion into the enclosure. In a rotary transfer arrangement an electric rotary switch is connected through a blade engaging the shaft passing through the self-aligning bearing.
    Type: Grant
    Filed: May 4, 1987
    Date of Patent: August 30, 1988
    Assignee: Simmons-Rand Corporation
    Inventor: Wynand M. Goyarts
  • Slide bar mining bolting machine
    Patent number: 4640369
    Abstract: A mine bolter machine has a main body supported by wheels and a main drill system structure forward of the main body. The main drill support is transversely movable relative to the main body and supports a first and second drilling mechanism. The first drilling mechanism is movable to the left of the main support structure and the second drilling mechanism is movable to the right of the main support structure.
    Type: Grant
    Filed: November 7, 1984
    Date of Patent: February 3, 1987
    Assignee: Ingersoll-Rand Company
    Inventor: Wynand M. Goyarts
  • Rotating device for drill mast
    Patent number: 4445663
    Abstract: A rotating device for a drill mast of a roof bolting mining machine has a pair of hydraulic cylinders respectively connected to appropriate ends of a lever arm. The hydraulic cylinders are connected at their respective other ends to the mast and to the mining machine. Full contraction of one cylinder rotates the lever arm which rotates the mast up to 45 degrees. Additional contraction of the other cylinder rotates the mast an additional 45 degrees.
    Type: Grant
    Filed: April 22, 1982
    Date of Patent: May 1, 1984
    Assignee: Lee-Norse Company
    Inventor: Wynand M. Goyarts
  • Cutter bit assembly
    Patent number: 4415208
    Abstract: A cutter bit assembly having an elongated cutter bit, a bit holder, a bit block and a locking means for removably affixing the bit holder to the bit block. The bit holder has a tapered locking lip and a tapered surface wherein a resultant cutting force provides a locking action between the tapers.
    Type: Grant
    Filed: July 31, 1981
    Date of Patent: November 15, 1983
    Assignee: Ingersoll-Rand Company
    Inventor: Wynand M. Goyarts