| |
Door safety brace having a hinge with angled end faces - Patent 4819296 |
 | | Hinged braces for placing against a door to prevent the door being opened are well known, but none of the known braces has a satisfactory self-locking hinge which secures the brace in position against the door. |
 | | When the door safety brace is engaged against a door, yoke means attached to the upper end of the upper rod engage under the handle of the door to be braced in closed position, and a flexible cup, engaged over the lower end of the lower rod, frictionally engages the floor. |
 | | When locked against a door, the door brace locks in positive over-center locking position under a compression load and cannot be dislodged from its braced position unless a lateral force is applied to unlock the hinge, the direction of the lateral force being shown by the arrow in FIG. |
| freepatentsonline.com /4819296.html (2503 words) |