Closure fasteners – Keepers
Patent
1986-12-31
1989-02-07
Smith, Gary L.
Closure fasteners
Keepers
292346, E05C 2100
Patent
active
048027014
ABSTRACT:
An improved latch plate in combination with an anchor base plate designed to resist forceable entry when disposed within a doorjamb. The construction of said latch may be adapted to engage either a sliding bolt or dead bolt when disposed over the bolt recess of a doorjamb. The latch has a flat plate portion with a large opening to receive a bolt, the flat plate has anchor corner and lip end, with an anchor stem extending inwardly towards the doorjamb and perpendicularly from the inside of the flat plate at the anchor corner. The anchor stem is in bearing contact within the doorjamb recess of the door frame and protrudes through a longitudinal aperture located in the anchor base plate into the doorjamb frame. The anchor base has a plurality of apertures disposed on both sides of the longitudinal aperture and are so located to cooperately receive the screws from the latch plate. The location of the plurality of apertures disposed on the anchor base plate is such so as not to cause a splitting of the wood frame into which they are screwed due to their offset. Traverse to the plurality of screws of the anchor base plate are a pair of safety screws disposed into the doorjamb through apertures located in anchor stem of the latch plate. Both the anchor stem of the lock strike plate and anchor base plate are concealed from view when mounted on the doorjamb. A tab extends into the doorjamb framing from the large opening disposed on the flat portion of the latch to further increase the strength of the assembly against unauthorized or foreceable entry by means of kicking and/or pushing against the door. Thus providing the occupant of a dwelling with improved security as compared with conventional lock strike plates.
REFERENCES:
patent: Re31276 (1983-06-01), Schlage
patent: D34243 (1901-03-01), Taylor
patent: 1275938 (1918-08-01), Juselius
patent: 1618846 (1927-02-01), Rippien
patent: 1919739 (1933-07-01), Minzenmayer
patent: 2127891 (1938-08-01), Starling
patent: 2454904 (1948-11-01), Wylie
patent: 2484024 (1949-10-01), Garberding
patent: 2568983 (1931-09-01), Best
patent: 2947560 (1960-08-01), Klets
patent: 3095021 (1963-07-01), Schlage
patent: 3290081 (1966-12-01), Sushan
patent: 3392999 (1968-07-01), Thompson
patent: 3606429 (1971-07-01), Palmer
patent: 3888530 (1975-06-01), Fabrici
patent: 3963269 (1976-06-01), Rosenberg
patent: 4005890 (1977-02-01), Murch
patent: 4057275 (1977-11-01), LaBeaud
patent: 4171836 (1979-10-01), St. Aubin
patent: 4174862 (1979-11-01), Shane
patent: 4195870 (1980-04-01), Percolo
patent: 4279436 (1981-07-01), Heffel
patent: 4295299 (1981-10-01), Nelson
patent: 4369994 (1983-01-01), Vorves
patent: 4415191 (1983-11-01), Thorp
patent: 4416087 (1983-11-01), Ghatak
patent: 4458931 (1984-07-01), McBurnie
patent: 4474394 (1984-10-01), Crepinsek
patent: 4531633 (1985-07-01), Evans
patent: 4547009 (1985-10-01), Allen
patent: 4684160 (1987-08-01), Nelson
patent: 4690445 (1987-09-01), Hartley
Chandler Charles W.
Nicholson Eric K.
Smith Gary L.
LandOfFree
Anchor latch does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Anchor latch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anchor latch will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1081081