Lock mechanism
AssigneeSurelock McGill Limited
InventorBernard John Viney
Life of this patent
Estimating the term…
Abstract
A lock mechanism comprises at least one bolt member moveable between an engaged and a disengaged position. The latch arrangement prevents movement of the bolt members from the engaged position to the disengaged position. A first operating member for operating the lock mechanism is provided on one side thereof and a second operating member and a latch release arrangement are provided on the other side of the lock mechanism. The latch arrangement responds to movement of the first operating member or the latch release arrangement to release the bolt members and allow movement thereof from the engaged position to the disengaged position. The bolt members are further moveable between the engaged and disengaged positions in response to movement of the first or second operating members.
Claims24
A lock mechanism comprising at least one bolt member moveable between an engaged and a disengaged position, latch means arranged to prevent movement of at least one said bolt member from said engaged position to said disengaged position, a first operating member for operating said lock mechanism from one side thereof, and operating means for operating said lock mechanism from the other side thereof, wherein said operating means comprises a second operating member and latch release means, said latch means is arranged to be responsive to movement of said first operating member or said latch release means to release said bolt member and allow movement from an engaged to a disengaged position, and said at least one bolt member is arranged to be moveable between said engaged and disengaged positions in response to movement of said first or second operating members.
A lock mechanism for attachment to and use on a door hinged in a door frame at a first side, said lock mechanism comprising bolt members moveable between an engaged position in a door frame and a disengaged position, said bolt members being adapted to engage such door frame from at least two of the sides of such door which are not hinged, latch means arranged to prevent movement of at least one said bolt member from said engaged position to said disengaged position, and a latch release arrangement to disengage said latch means and allow movement of said bolt members, said latch release arrangement and said bolt members being arranged to be operable in response to a single rotary movement of a single operating member, said latch means being disengaged upon initial rotation of said operating member and said bolt members subsequently being disengaged from said engaged position upon a continuation of the same rotary movement of the same single operating member, and said bolt members being arranged to be directly driven between said engaged and disengaged positions by movement of said operating member, said lock mechanism further including a first operating member for operating said bolt members and said latch release arrangement from one side of said lock mechanism, and operating means for operating said bolt members and said latch release arrangement from the other side of said lock mechanism, said operating means comprising a second operating member and latch release means, said latch release means being arranged to operate said latch release arrangement, and said bolt members being arranged to be moveable between said engaged and said disengaged positions in response to movement of said first or second operating members.
Dependencies are inferred from the claim text.