Patents Assigned to Derner Technologies, Inc.
  • Patent number: 7318385
    Abstract: The pontoon boat lift system comprises a plurality of lifts. Each lift is comprised of a channel that mounts to deck support members of the boat. One end of a leg is pivotally mounted to one end of the channel. A screw supported in the channel is turned by a connection to an electric motor. A threaded follower on the screw travels along the screw when it is rotated by the motor. A fulcrum arm connects between the threaded follower and the leg to transmit a longitudinal movement of the follower into a pivotal movement of the leg. The leg is thus moveable between a raised and a lowered position. A base pad connected to the opposite end of the leg comprises a plurality of spaced support surfaces that contact the bottom of a body of water. The base pad supports the leg on the bottom of the body of water and easily separates from the bottom when the leg is moved to the raised position. The operation of the lifts is coordinated to raise the pontoon boat above the surface of the water at desired shoreline locations.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: January 15, 2008
    Assignee: Derner Technologies, Inc.
    Inventor: Eric J. Derner
  • Patent number: 7267066
    Abstract: The pontoon boat lift system comprises a plurality of lifts. Each lift is comprised of a channel that mounts to deck support members of the boat. One end of a leg is pivotally mounted to one end of the channel. A screw supported in the channel is turned by a connection to an electric motor. A threaded follower on the screw travels along the screw when it is rotated by the motor. A fulcrum arm connects between the threaded follower and the leg to transmit a longitudinal movement of the follower into a pivotal movement of the leg. The leg is thus moveable between a raised and a lowered position. A base pad connected to the opposite end of the leg comprises a plurality of spaced support surfaces that contact the bottom of a body of water. The base pad supports the leg on the bottom of the body of water and easily separates from the bottom when the leg is moved to the raised position. The operation of the lifts is coordinated to raise the pontoon boat above the surface of the water at desired shoreline locations.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: September 11, 2007
    Assignee: Derner Technologies, Inc.
    Inventor: Eric J Derner
  • Patent number: 7156030
    Abstract: The pontoon boat lift system comprises a plurality of lifts mounted to an underside of a deck of the pontoon boat. Each lift comprises a leg that pivotally mounted to the underside of the deck and is moveable between a raised position and a lowered position. A free end of each leg includes its own support pad that contacts, for example, a lake bottom when the legs are in the lowered position. The operation of the lifts is coordinated to raise the pontoon boat above the surface of the water at desired shoreline locations.
    Type: Grant
    Filed: April 4, 2006
    Date of Patent: January 2, 2007
    Assignee: Derner Technologies, Inc.
    Inventors: Eric J. Derner, Alan A. Derner, Brian P. Derner, Richard B. Derner
  • Patent number: 7051665
    Abstract: The pontoon boat lift system comprises a plurality of lifts. Each lift is comprised of a channel that mounts to deck support members of the boat. A leg is pivotally mounted to one end of the channel. A screw supported in the channel is turned by a connection to an electric motor. A threaded follower on the screw travels along the screw when it is rotated by the motor. A fulcrum arm connects between the threaded follower and the leg to transmit a longitudinal movement of the follower into a pivotal movement of the leg. The leg is thus moveable between a raised and a lowered position. The operation of the lifts is coordinated to raise the pontoon boat above the surface of the water at desired shoreline locations.
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: May 30, 2006
    Assignee: Derner Technologies, Inc.
    Inventors: Eric J. Derner, Alan A. Derner, Brian P. Derner, Richard B. Derner
  • Patent number: 6983707
    Abstract: The pontoon boat lift system comprises a plurality of lifts. Each lift is comprised of a channel that mounts to deck support members of the boat. A leg is pivotally mounted to one end of the channel. A screw supported in the channel is turned by a connection to an electric motor. A threaded follower on the screw travels along the screw when it is rotated by the motor. A fulcrum arm connects between the threaded follower and the leg to transmit a longitudinal movement of the follower into a pivotal movement of the leg. The leg is thus moveable between a raised and a lowered position. The operation of the lifts is coordinated to raise the pontoon boat above the surface of the water at desired shoreline locations.
    Type: Grant
    Filed: May 16, 2005
    Date of Patent: January 10, 2006
    Assignee: Derner Technologies, Inc.
    Inventors: Eric J. Derner, Alan A. Derner, Brian P. Derner, Richard B. Derner
  • Publication number: 20050284352
    Abstract: The pontoon boat lift system comprises a plurality of lifts. Each lift is comprised of a channel that mounts to deck support members of the boat. A leg is pivotally mounted to one end of the channel. A screw supported in the channel is turned by a connection to an electric motor. A threaded follower on the screw travels along the screw when it is rotated by the motor. A fulcrum arm connects between the threaded follower and the leg to transmit a longitudinal movement of the follower into a pivotal movement of the leg. The leg is thus moveable between a raised and a lowered position. The operation of the lifts is coordinated to raise the pontoon boat above the surface of the water at desired shoreline locations.
    Type: Application
    Filed: August 31, 2005
    Publication date: December 29, 2005
    Applicant: Derner Technologies, Inc.
    Inventors: Eric J. Derner, Alan A. Derner, Brian P. Derner, Richard B. Derner
  • Patent number: 6907835
    Abstract: The pontoon boat lift system comprises a plurality of lifts. Each lift is comprised of a channel that mounts to deck support members of the boat. A leg is pivotally mounted to one end of the channel. A screw supported in the channel is turned by a connection to an electric motor. A threaded follower on the screw travels along the screw when it is rotated by the motor. A fulcrum arm connects between the threaded follower and the leg to transmit a longitudinal movement of the follower into a pivotal movement of the leg. The leg is thus moveable between a raised and a lowered position. The operation of the lifts is coordinated to raise the pontoon boat above the surface of the water at desired shoreline locations.
    Type: Grant
    Filed: March 4, 2004
    Date of Patent: June 21, 2005
    Assignee: Derner Technologies, Inc.
    Inventors: Eric J. Derner, Alan A. Derner, Brian P. Derner, Richard B. Derner