Patent Number: 6,612,629

Title: Spring bolt and strike plate guard

Abstract: As herein described a plastic or metal hollow frame device which whenmounted within the bolt cavity on a door frame and therefrom extendingoutwards with curved `U` shaped arms through the strike plate aperturemounted concentric with and above the said frame bolt cavity, and thenceinto the space between the door frame and the edge of the closed door,i.e. the door gap, upon which door is mounted an associated spring boltdoor lock, in such a manner that when the spring bolt is located withinthe strike plate aperture and the frame bolt cavity, i.e. the door isclosed, the said spring bolt is protected on three sides by the curved `U`shaped arms such that all methods of attacking the spring bolt by anyexternal means are effectively blocked, and additionally, wherein the said`U` shaped curved arms bear upon the strike plate aperture such that anyimpact force on the outside surface of the door is redirected into thedoor cripple by the bending of the `U` shaped curved arms on to the hollowframe base plate, thus dissipating the impact force at right angles to thedirection of the initial impact force rather than the retaining screws ofthe strike plate, thus maintaining the integrity of the spring bolt andalso the frame strike plate in a manner which designates its explicitnaming as a spring bolt and strike plate guard.

Inventors: O'Hanlon; Edward (Tucson, AZ)


International Classification: E05B 17/00 (20060101); E05B 17/20 (20060101); E05B 017/00 ()

Expiration Date: 09/02015