Patent ID: 9546506
Date: 2017-01-17
CPC Classifications: E05C

Claim:
1. A mechanical door security device, comprising in combination: a solid, generally cylindrical, generally uniform diameter, substantially U-shaped member, two staple assemblies, said staple assembly having a staple loop coupled to a base plate, said base plate having six fastener holes, said U-shaped member comprising, a top end, two terminal parts, an elongated flexible means having a proximal end and a terminal end, said proximal end of said flexible means is firmly affixed to the top end of said U-shaped member, said terminal end of said flexible means is coupled to a terminal safety hook, said U-shaped member further comprising, two generally straight arms ending in said two terminal parts, said door security device is structured using rigid, heavy duty material resistant to corrosion; said door security device provides for use on sliding and swinging doors in fully closed position thereof, to preclude opening said doors when said device is installed on the interior side of said doors, said staple assembly is fastened onto a door frame or door panel, each of said two generally straight arms of said U-shaped member engages said staple loop of one of two fastened staple assemblies, or one of two said straight arms engages the staple loop of a fastened staple assembly and the other being adapted to engage a door handle respectively, said terminal safety hook engages onto one of two said straight arms to secure the U-shaped member installed on the door; said two generally straight arms, one engages a staple loop and the other adapted to engage a door handle respectively of a closed sliding door thereby preventing the door from sliding, wherein said staple assembly is fastened onto the sliding door frame adjacent to said door handle; in use on a closed single swinging door, said two generally straight arms of said U-shaped member, each engages one of two staple loops of fastened staple assemblies, one staple assembly is fastened on the swinging door frame and the other near the edge of the single swinging door panel adjacent to said door frame, whereby the installed said U-shaped member prevents the swinging door from swinging; the six base plate fastener holes receive six fasteners when said staple assembly is fastened, the terminal part of said U-shaped member slides through said staple loop allowing engagement of a straight arm, wherein the two straight arms of said U-shaped member simultaneously engage two fastened staple assemblies, or adapted to simultaneously engage a staple assembly and a door handle, whereby said door security device when installed, provides substantial security beyond locks, precluding opening doors from outside.