Patent ID: 8066247
Filing Date: 2011-11-29
Classification: E04G

Abstract:
1. A length-adjustable support, the support having a first elongate cylindrical member and a second elongate cylindrical member for telescopic sliding engagement with the first elongate cylindrical member, the said members being movable relative to each other from a collapsed position to an extended position, with one of said members providing a first slot therein in a longitudinal direction thereof that is in communication with a second slot therein in a circumferential direction thereof and generally perpendicularly disposed to said first slot, and with another of said members providing a third slot therein in registry with the second slot when the first and second members are in telescopic sliding engagement and in the said extended position, the support having a pin locatable within the said first and second slots and within the said third slot for relative movement with the first and second members, wherein locating of the pin within the second and third slots and outside of the first slot maintains the first and second members in the said extended position thereof in a locked engagement in each direction of movement of said longitudinal direction and locating of the pin within the first slot enables the first and second members to move from said extended position to said collapsed position.