Patent ID: 7657970

Claim:
A device for preventing door slamming comprising: a housing that has a bore formed therein, and is configured for attachment to a door frame; a control element that slides in said bore, wherein a distal portion of said control element is arranged to slide in said bore of said housing against a first biasing device, and wherein said control element has a bore formed therein; a plunger that slides in and out of said bore of said control element, said plunger being biased against a distal end of said bore of said control element by a second biasing device, and slides in response to a door force; and a stopper element received in said plunger and extending into said control element, said stopper element is responsive to an impact power applied on the plunger, wherein the second biasing device has a spring force greater than the spring force of the first biasing device, wherein if a door slamming force that exhibits an impact power above a predefined level is applied on said plunger, said stopper element is dislodged from said plunger so that said stopper element becomes lodged in said control element and said housing, thereby preventing said control element from sliding in said bore of said housing in order to prevent door slamming, and wherein if a door non-slamming force that exhibits an impact power below the predefined level is applied against said plunger, said stopper element remains in said plunger and locks said plunger with said control element, so as to cause said control element to slide in said bore in order to allow the door to close.