Door security system

Details Door security system Door security system

1995-04-28

1996-10-22

Lindsey, Rodney M.

Closure fasteners

Bolt guards

292340, E04B 1700

Patent

active

055669956

ABSTRACT:
A security device for securing a hinged door against forcible opening is disclosed. The apparatus includes an interior plate portion secured to an inner side of the door frame. The interior plate portion defines a first edge disposable in a gap between a latch edge of the door and a latch receiving portion of the door frame. When installed in a door apparatus, the security device prevents the door from being forcibly opened even if the latch receiving portion of the door frame is damaged or the door is bowed or bent inward. An alternative embodiment of the security device includes a latch plate reinforcing portion and a clamping portion in addition to the interior plate portion. A kit is disclosed that includes the interior plate portion and screws for attaching the interior plate portion to the door frame and for reinforcing the door hinge.

REFERENCES:
patent: 277398 (1883-05-01), Wise
patent: 325846 (1885-09-01), Littlefield
patent: 1473494 (1923-11-01), Miely
patent: 1653487 (1927-12-01), White
patent: 2717064 (1955-09-01), Hock
patent: 3767245 (1973-10-01), Keefe
patent: 3815945 (1974-06-01), Lamphere
patent: 3888530 (1975-06-01), Fabrici
patent: 3963269 (1976-06-01), Rosenberg
patent: 4057275 (1977-11-01), La Beaud
patent: 4070074 (1978-01-01), Rohme
patent: 4130311 (1978-12-01), Sushan
patent: 4171837 (1979-10-01), McRoy
patent: 4178588 (1979-12-01), Queren
patent: 4186954 (1980-02-01), Detlefs
patent: 4195870 (1980-04-01), Percoco
patent: 4580824 (1986-04-01), Asp
patent: 4607510 (1986-08-01), Shanaan et al.
patent: 4635399 (1987-01-01), Gehrle et al.
patent: 4690445 (1987-09-01), Hartley
patent: 4717185 (1988-01-01), Hartley
patent: 4770452 (1988-09-01), Petree, Jr.
patent: 4844521 (1989-07-01), Langenbach et al.
patent: 4854622 (1989-08-01), Lozano
patent: 4865370 (1989-09-01), Francis
patent: 4872717 (1989-10-01), McEvoy et al.
patent: 4953901 (1990-09-01), Hegdahl
patent: 5016930 (1991-05-01), Hamilton
patent: 5024475 (1991-06-01), Francis
patent: 5031946 (1991-07-01), Yarrow
patent: 5070650 (1991-12-01), Anderson
patent: 5088780 (1992-02-01), Doherty
patent: 5344198 (1994-09-01), Elliott

Affiliated with

Also associated with

Rating

Door security system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Door security system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Door security system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2353689