Patents by Inventor Andrew M. Wurster

Andrew M. Wurster 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).

  • Hoist drive for mining machine
    Patent number: 9150391
    Abstract: A hoist system includes a drum, a motor, and a transmission. The drum includes a hollow shell, a first end, a second end, and an internal web, and defines a longitudinal axis extending between the first end and the second end. The internal web extends across an interior portion of the shell in a direction perpendicular to the longitudinal axis, thereby defining a first portion and a second portion of the shell. The motor is coupled to the first end and includes an output shaft. The transmission is driven by the motor and includes a planetary gear train positioned within the interior portion of the shell. The planetary gear train includes an input gear coupled to the motor output shaft and an output gear coupled to the internal web to rotate the drum about the longitudinal axis. The planetary gear train is positioned in a first portion of the shell.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: October 6, 2015
    Assignee: Harnischfeger Technologies, Inc.
    Inventors: Andrew M. Wurster, Peter Sandoval, Jr., Edwin C. Hahlbeck
  • HOIST DRIVE FOR MINING MACHINE
    Publication number: 20130259621
    Abstract: A hoist system includes a drum, a motor, and a transmission. The drum includes a hollow shell, a first end, a second end, and an internal web, and defines a longitudinal axis extending between the first end and the second end. The internal web extends across an interior portion of the shell in a direction perpendicular to the longitudinal axis, thereby defining a first portion and a second portion of the shell. The motor is coupled to the first end and includes an output shaft. The transmission is driven by the motor and includes a planetary gear train positioned within the interior portion of the shell. The planetary gear train includes an input gear coupled to the motor output shaft and an output gear coupled to the internal web to rotate the drum about the longitudinal axis. The planetary gear train is positioned in a first portion of the shell.
    Type: Application
    Filed: March 13, 2013
    Publication date: October 3, 2013
    Applicant: HARNISCHFEGER TECHNOLOGIES, INC.
    Inventors: Andrew M. Wurster, Peter Sandoval, JR., Edwin C. Hahlbeck
  • Electric mining shovel saddle block assembly with adjustable wear plates
    Patent number: 8434247
    Abstract: A saddle block assembly including a main body having a shipper shaft opening through the main body bottom end, and an eccentric pin opening in the main body top end, an eccentric pin received in an eccentric pin opening in the top end of the main body, and a wear plate support. The wear plate support has a pin receiving opening, the eccentric pin being received in the pin receiving opening. Wear plates are mounted on the bottom end of the wear plate support and are adapted to bear against the top of a dipper handle.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: May 7, 2013
    Assignee: Harnischfeger Technologies, Inc.
    Inventor: Andrew M. Wurster
  • ELECTRIC MINING SHOVEL SADDLE BLOCK ASSEMBLY WITH ADJUSTABLE WEAR PLATES
    Publication number: 20110214317
    Abstract: A saddle block assembly including a main body having a shipper shaft opening through the main body bottom end, and an eccentric pin opening in the main body top end, an eccentric pin received in an eccentric pin opening in the top end of the main body, and a wear plate support. The wear plate support has a pin receiving opening, the eccentric pin being received in the pin receiving opening. Wear plates are mounted on the bottom end of the wear plate support and are adapted to bear against the top of a dipper handle.
    Type: Application
    Filed: May 13, 2011
    Publication date: September 8, 2011
    Inventor: Andrew M. Wurster
  • Electric mining shovel saddle block assembly with adjustable wear plates
    Patent number: 7950171
    Abstract: A saddle block assembly including a main body having a shipper shaft opening through the main body bottom end, and an eccentric pin opening in the main body top end, an eccentric pin received in an eccentric pin opening in the top end of the main body, and a wear plate support. The wear plate support has a pin receiving opening, the eccentric pin being received in the pin receiving opening. Wear plates are mounted on the bottom end of the wear plate support and are adapted to bear against the top of a dipper handle.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: May 31, 2011
    Assignee: Harnischfeger Technologies, Inc.
    Inventor: Andrew M. Wurster
  • ELECTRIC MINING SHOVEL SADDLE BLOCK ASSEMBLY WITH ADJUSTABLE WEAR PLATES
    Publication number: 20090067972
    Abstract: A saddle block assembly including a main body having a shipper shaft opening through the main body bottom end, and an eccentric pin opening in the main body top end, an eccentric pin received in an eccentric pin opening in the top end of the main body, and a wear plate support. The wear plate support has a pin receiving opening, the eccentric pin being received in the pin receiving opening. Wear plates are mounted on the bottom end of the wear plate support and are adapted to bear against the top of a dipper handle.
    Type: Application
    Filed: September 11, 2007
    Publication date: March 12, 2009
    Inventor: Andrew M. Wurster