Patents Examined by Jes s Sotelo
  • Patent number: 5002000
    Abstract: A boat lift and leveler are provided in which the boat lift consists of a cradle supported by at least two pontoons laterally disposed beneath and fixed to the cradle. A leveler for the lift includes a pair of pneumatic duct systems. One of the systems connects to air vents on the starboard side pontoons and the other system connects to air vents on the port side pontoons. Each system includes an intake path, an exhaust path and a valve in each path. The intake path is connected to a source of air under pressure and the exhaust path extends to the atmosphere. An enclosure fixed to the lift lists to starboard or port with the lift. A V-shaped track rests in the enclosure. The track has a starboard arm which rotates below horizontal at a predetermined degree of starboard list of the enclosure and a port arm which rotates below horizontal at a predetermined degree of port list of the enclosure.
    Type: Grant
    Filed: January 9, 1990
    Date of Patent: March 26, 1991
    Inventor: Henry A. Rutter