Patent ID: 8783740

Claim:
A security lock, comprising: first and second components, the first component configured to be affixed to a side of a door, the second component configured to be affixed to a door jam, such that first and second components mate to releasably lock the door in position relative to the door jam, wherein; the first component has a first base flange, and a first extension flange, the first extension flange extending substantially perpendicular and projecting outwardly from the first base flange; the first base flange having means for affixing to the side of the door such that the first extension flange rigidly extends substantially perpendicular and inwardly therefrom; the first extension flange having a centrally disposed button, which button has a projecting portion, extending from the first extension flange opposite the first base flange; the second component has a second base flange, and a second extension flange, the second extension flange extending hingedly from the second base flange; the second base flange having means for affixing to a door jam such that the second extension flange can hingedly extend inwardly therefrom; the second extension flange having a longitudinal central slot extending therefrom for receiving the button therethrough to slidably engage the first extension flange, the projecting portion of the button extending from the central slot to retain the button thereon; a guide slot is provided in the second extension flange to receive an upper opposing holder disposed on the first extension flange in a closed position of the door; a lower opposing holder is disposed on the first extension flange to slidably receive the bottom of the second extension flange thereon; and apparatus for locking the first and second extension flanges in place relative to one another thereby permitting a door to be locked in at least two partially opened positions relative to a corresponding door jam.