Patent ID: 6663057
Filing Date: 2003-12-16
Classification: B63B,F16B

Abstract:
A vertically adjustable support for a boat accessory such as a seat or table, comprising:a first rigid elongated tubular member having a set of spaced-apart parallel elongated grooves on its outer surface; a rigid elongated hollow tubular member having a corresponding set of spaced-apart parallel elongated grooves on its inner surface; said first tubular member slidably engaged within said hollow tubular member with the sets of grooves in line; and a set of elongated rods resting in the aligned sets of grooves preventing said tubular members from rotation with respect to one another while permitting said tubular members to be moved repetitively axially with respect to one another; one of said tubular members adapted for coupling to the underside of a boat seat, the other tubular member adapted for attachment at one end to a supporting surface.