Patent ID: 7393027

Claim:
A doorstop to absorb and offset an impact applied by a door when the door is opened, and which automatically secures the door in position, comprising: a base, including: a platform, a bolting hole being disposed at a predetermined location in a front section of the platform, the bolting hole receiving a threaded fastener that secures the base to a floor; and a retaining portion disposed in a rear section of the platform, a chamber being defined by the retaining portion, a guide trough being disposed in the chamber and adjacent to the bolting hole; a buffer inserted in the chamber, the buffer being made of an absorption material and having a lateral insertion block protruding from its lower edge, the lateral insertion block being received within the guide trough to confine the buffer within the retaining portion, a center of the buffer having a through hole; a magnetic member inserted in the through hole; and an elastic member disposed in a rear section of the through hole and pressing against an inner end of the magnetic member, the elastic member being sandwiched between the buffer and an inner wall of the retaining portion of the base, the buffer being pushed by the elastic member to be partially exposed out of the chamber, the buffer being elastically reciprocal; the magnetic member attracting the door when the door is opened, and both the elastic member and the buffer effectively absorbing and offsetting an impact applied by the door to prevent the door panel from bouncing back while maintaining the door in an open status.