Patents by Inventor Gerald Allen Zelm

Gerald Allen Zelm 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: 7666039
    Abstract: An outboard motor having a steering control and a rudder reference sensor, both connectible to a computer-operated guidance system. The steering control utilizes a linear actuator connected through a linkage to the motor. The actuator utilizes a rack that moves along the axis about which the motor pivots from its use position to its storage position, thereby enabling the rudder position sensor to remain connected to the motor when the motor is pivoted from its use position to its storage position. The sensor can include a follower disposed in a sloping groove on the rack, a pin on the rack engaged in a helical groove on a cylinder, or an externally mounted sensor connected to the steering linkage through an auxiliary linkage.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: February 23, 2010
    Assignee: Marinetech Products, Inc.
    Inventors: Gerald Allen Zelm, James Dennis Cayford
  • Publication number: 20080113571
    Abstract: An outboard motor having a steering control and a rudder reference sensor, both connectible to a computer-operated guidance system, The steering control utilizes a linear actuator connected through a linkage to the motor. The actuator utilizes a rack that moves along the axis about which the motor pivots from its use position to its storage position, thereby enabling the rudder position sensor remain connected to the motor when the motor is pivoted from its use position to its storage position. The sensor can include a follower disposed in a sloping groove on the rack, a pin on the rack engaged in a helical groove on a cylinder, or an externally mounted sensor connected to the steering linkage through an auxiliary linkage.
    Type: Application
    Filed: November 9, 2007
    Publication date: May 15, 2008
    Applicant: Marinetech Products, Inc.
    Inventors: Gerald Allen Zelm, James Dennis Cayford