Patio door security bar with lock

An attachment for a patio door or the like security locking bar system in which there is a rigid bar hingedly secured by one end thereof to a first vertical frame member of one of a framed glass panel and a framed opening in which the panel slides, said bar adapted to be swung between a normally inoperative condition in vertical disposition alongside of said first vertical frame member to a horizontal position with the free end of the bar disposed at the second vertical frame member whereby the bar blocks the sliding movement of said panel, said attachment adapted to replace a length of the bar removed from its free end and comprising:

• A. a hollow length of tubing of a configuration adapted to conform to that of said bar and of a dimension adapted to be substituted for the length of bar removed,
• B. means in one end of the tubing to enable firm coupling of the length of tubing with the bar end and leaving the other end of the tubing length free,
• C. an interior sliding bolt in the free end of the tubing length having a section thereof fully contained within the tubing and reciprocable therein with an integral extension adapted to protrude from the free end and adapted to enter a suitable receptor socket which may be formed therefor in the said second vertical frame member, the said extension being retractable substantially completely within the said tubing length,
• D. a rotary barrel installed in a lateral wall of the tubing length and having its proximal end engaged with the said bolt section fully contained within the tubing, there being cooperating means on the said proximal end and section enabling rotation of the barrel to reciprocate the bolt in rectilinear movement, said cooperating means comprising a rack formed on the bolt and a pinion formed on said proximal end of the barrel and engaged with said rack, and
• E. the distal end of the barrel being exposed and including means mounted thereon to enable rotation of the barrel from the exterior of the bar.

In a patio door or the like locking bar system in which a rigid bar is hingedly secured by one end thereof to a first vertical frame member of one of a framed glass panel and a framed opening in which the said panel slides, said bar adapted to be swung between a normally inoperative condition in vertical disposition alongside of said first vertical frame member to a horizontal position with the free end of the bar disposed at the second vertical frame member whereby the bar blocks the sliding movement of said panel, the invention herein which comprises,

• A. at least the free end of the bar being hollow,
• B. a sliding bolt in the bar end, said bolt having an elongate body including a slot formed therein defining an elongate wall and a rack formed along the elongate wall and upstanding stop means located adjacent the opposite ends of the rack,
• C. a rotary barrel in a lateral wall of the bar adjacent the end,
• D. a motion-transmitting coupling between the barrel and bolt enabling rotary motion of the barrel to be converted into rectilinear sliding movement of the bolt within the hollow end of the bar, said coupling means including a pinion formed on the proximal end of the barrel and fitted in the slot and engaged with the rack and being separately engageable with the stop means to confine and define the rectilinear sliding movement of the bolt,
• E. the barrel having means for enabling the engagement of an actuating tool or the like therewith from exterior of the bar to rotate the barrel, the second vertical frame member adapted to have a bolt-receiving socket therein at the level which meets the bar when in said horizontal disposition whereby movement of the bolt into said socket will lock the bar in the horizontal disposition.

In a patio door or the like locking bar system in which a rigid bar is hingedly secured by one end thereof to a first vertical frame member of one of a framed glass panel and a framed opening in which the said panel slides, said bar adapted to be swung between a normally inoperative condition in vertical disposition alongside of said first vertical frame member to a horizontal position with the free end of the bar disposed at the second vertical frame member whereby the bar blocks the sliding movement of said panel, the invention herein which comprises,

• A. at least the free end of the bar being hollow,
• B. a sliding bolt in the bar end,
• C. a rotary barrel in a lateral wall of the bar intermediate the length thereof but adjacent the end, said barrel having walls axially split along a portion of its length adjacent its distal end and a series of detents on said walls, the first series being at said distal end and the second series being spaced therefrom, the second series of detents enabling the barrel to be snapped into the bar through said lateral wall and the wall having a passageway therein permitting of such action during assembly of the barrel to the bar, the proximal end of the barrel being inaccessible from outside of the bar,
• D. a freely rotating cap engaged on the distal end of the barrel and having a central tool-fitting opening, the cap having an interior ring formation which has an interior diameter slightly larger than that of the barrel but substantially smaller than the exterior diameter of the first series of detents whereby to enable the cap to be snapped over the first series of detends and retained on the distal end of the barrel,
• E. a motion-transmitting coupling between the barrel and bolt enabling rotary motion of the barrel to be converted into rectilinear sliding movement of the bolt within the hollow end of the bar,
• F. the barrel having formations on its interior adapted to engage with an actuating tool inserted through the tool-fitting opening from the exterior of the bar whereby, with the tool not present, rotating the cap in attempting to rotate the barrel will be ineffectual, the second vertical member adapted to have a bolt-receiving socket therein at the level which meets the bar when in said horizontal disposition whereby movement of the bolt into said socket will lock the bar in the horizontal disposition.