Guard rail safety system

• US 20070257180A1
• Filed: 06/28/2007
• Published: 11/08/2007
• Est. Priority Date: 07/29/2004
• Status: Abandoned Application

• Current Assignee: Jonny Melic
• Original Assignee: Jonny Melic
• Inventors: Melic, Jonny
• Application Number:
  US11/819,526
• Publication Number:
  US 20070257180A1
• Time in Patent Office: Days
• US Class Current: 248/551
• CPC Class Codes: E04G 2005/148 latticed or netted
• CPC Class Codes: E04G 21/3233 without permanent provision in the floor or roof

Abstract

A support post and safety fence assembly in which the post has a telescoping inner and outer tube and is supported on a threaded internal shaft coupled to a floor engaging end and ceiling engaging end preferably formed with claws that have a number of sharp penetrating points for firm engagement with a support surface. In one embodiment, a gravity lock assembly is provided for fixing the relative position of the inner and outer tubes. Dynamic adjustability of the support post is provided by internal compression springs.

Claims

1. An extendable post installable between opposed surfaces, said post having:

a first longitudinally extending tube,

a second longitudinally extending tube in sliding telescoping engagement with the first tube,

a locking mechanism having an unlocked condition permitting relative sliding movement of the first tube relative to the second tube and a locked condition preventing relative sliding movement of the first tube relative to the second tube when the first tube and the second tube are in a desired longitudinal relationship,

one of the first and second tubes having an end which in use is adjacent to one of said spaced surfaces, said one tube having an internal guide bushing adjacent said end and an internal nut spaced from the guide bushing and further from said end than the guide bushing, and

a shaft having a threaded portion adjacent one end and a smooth portion adjacent an opposite end, the threaded portion being engaged with the internal nut and the smooth portion extending through the guide bushing in sliding engagement therewith, said smooth portion projecting from said end of said one tube, said opposite end of the shaft carrying a surface engaging member.

2. An extendable post according to claim 1 wherein the surface engaging member is carried by the shaft in such as manner as to be capable of angular movement relative thereto.