Patent ID: 6041845
Filing Date: 2000-03-28
Classification: E05F,E05Y

Abstract:
A garage door opening and closing system comprising, in combination:a garage having a generally vertical opening with a garage door moveable between a closed position covering the opening and an elevated orientation to open the opening, a rail horizontally positioned adjacent the top of the opening and extending perpendicularly away therefrom with a slider moveable along the rail to effect opening and closing of the door;a lower bar in a generally L-shaped configuration pivotably connected to the door at an upper extent thereof and an associated intermediate bar with apertures for coupling with respect to the lower bar at a preselected orientation;an upper bar in a cylindrical configuration having an upper end pivotably connected to the slider and having a threaded lower end with a piston adjustably mounted thereto by nuts;a housing with an imperforate cylindrical side wall encompassing the piston with an upper cap threadably coupled to the housing at the top end formed with a central aperture slidably receiving the upper bar and having an apertured lower cap threadably coupled to the housing with an interior face and an exterior face releasably and adjustably secured to the upper end of the intermediate rod by nuts; andan upper coil spring located within the side wall between the piston and the upper cap and a lower coil spring located within the side wall between the piston and the lower cap in contact with the interior face therreof whereby motion of the slider toward the door will urge the upper, lower and intermediate rods and cylinder as well as the door downwardly with the urging of the piston toward the lower coil spring and with the piston adapted to locate itself between the springs upon the final sealing of the lower edge of the door within the opening.