초록 ▼

A window or door guard made of one piece of protective material which conceals hinging and locking components from view and shields them from forcible attack. The guard may be unlocked with a key from the outside, or without a key only from the inside thereof, after which the guard may be easily ope

A window or door guard made of one piece of protective material which conceals hinging and locking components from view and shields them from forcible attack. The guard may be unlocked with a key from the outside, or without a key only from the inside thereof, after which the guard may be easily opened to allow for an emergency escape. The guard may also be removed from its mounting and subsequently remounted, both without a key or tool. No springs, flexible cables, or parts inaccessible to inspection, cleaning, lubrication, or replacement are utilized.

대표청구항 ▼

A guard for an opening in a wall or the like comprising: a generally planar guard element; pivotal mounting means along one edge of said guard element for mounting said guard element upon said wall to cover the exterior of said opening when said guard element is in a substantially coplanar orientati

A guard for an opening in a wall or the like comprising: a generally planar guard element; pivotal mounting means along one edge of said guard element for mounting said guard element upon said wall to cover the exterior of said opening when said guard element is in a substantially coplanar orientation to said wall; said pivotal mounting means allowing said guard element to be pivotally moved away from said wall and out of a substantially coplanar orientation to said wall; said pivotal mounting means allowing said guard element to be repetitively removed from attachment to said wall and to be repetitively remounted upon said wall, both without a tool or a key; said pivotal mounting means being inaccessible and blocked from sight from the exterior of said guard element; fastening means for securing said guard element to said wall, preventing either the removal or opening of said guard element and access to the interior of said opening; said fastening means comprising: a tubular member carried on the opposite edge of said guard element; at least one slot in said tubular member; at least one locking bolt carried on said wall to extend through said slot; a head on said locking bolt; said bolt being rotatable about its own axis between a locking position wherein said head may not be disengaged from said slot, and an opening position wherein said head will pass radially through said slot; and opening means for unlocking and allowing the pivotal opening of said guard element to allow egress from the interior of said opening; said opening means not being capable of activation from the exterior of said guard element, said opening means comprising: operating means accessible from the interior of said guard member and wall for rotating said lock bolt through about 90°between said locking and opening positions; said unlocking and opening not requiring a tool or key or exceptional strength.