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Title: Lock for medicine cabinets and the like
Claims: We claim: 1. An attachment lock for cabinet closures comprising a lock body member having a longitudinal guide passage therethrough and a relatively movable locking bar member extending through said guide passage, one of which terminates in a flat mounting surface portion on one end thereof adapted for securement to the outer face of a cabinet side wall which is rearwardly of and at substantially right angles to a cabinet closure to be locked against forward movement relative to the side wall, the other of which quidably slides longitudinally parallel relative to the other between a locking position and a release position, said flat mounting surface portion positioned at substantially right angles to the plane of movement of the other said member and substantially aligned with the direction of movement of the cabinet closure, means for fixedly connecting said flat mounting surface portion to the outer face of the cabinet side wall, and a closure positive locking member carried bodily by one or the other of said lock body member or locking bar member and lying in a plane parallel to the locking bar member and spaced laterally therefrom, said closure positive locking member adapted to assume a locking position relative to said closure when the lock body member and locking bar member are slidably moved relatively in one longitudinal direction and adapted to assume a retracted closure release position when the lock body member and locking bar member are slidably moved relatively in an opposite longitudinal direction, and a one way free moving one way positively engaging lock mechansim on the lock body and locking bar member in cooperative relation thereon. 2. An attachment lock as defined in claim 1 in which the locking bar member is adapted for securement to the outer face of a cabinet side wall and is stationary relative to the lock body member when the attachment lock is installed, and said closure positive locking member being carried by said lock body member. 3. An attachment lock as defined in claim 2, and said locking bar member comprising a ratchet toothed locking bar, said flat mounting surface portion comprising a first lateral extension at one end of said locking bar member attachable to a cabinet side wall and a second lateral extension at the opposite end thereof forming a stop to limit movement of the lock body away from a cabinet side wall, the lock body being captive on the locking bar between said first and second lateral extensions. 4. An attachment lock as defined in claim 2, and said locking bar member being a toothed locking bar having a hook-like extension on its leading end, and said flat mounting surface portion on one end of said locking bar member comprising a separate clamping retainer element captively engaging the hook-like extension and adapted to be secured to the outer face of a cabinet side wall for holding the hook-like extension clampingly between the outer face of the side wall and said retainer element when said retainer is secured to the cabinet side wall. 5. An attachment lock for cabinet closures comprising a lock body and a relatively movable locking bar member, said lock body adapted for securement to a cabinet side wall rearwardly of a cabinet closure to be locked against forward movement and is stationary relative to the locking bar member when the attachment lock is installed, and a closure positive locking member attached to and carried bodily by said locking bar member and lying in a plane parallel to the locking bar member and spaced laterally therefrom, said closure positive locking member adapted to assume a locking position relative to said closure when the lock body and locking bar member are moved relatively in one direction and adapted to assume a retracted closure release position when the lock body and locking bar member are moved relatively in an opposite direction, and a one way free moving one way positively engaging lock mechanism on the lock body and locking bar member in cooperative relation thereon. 6. An attachment lock as defined in claim 5, and said locking bar member having a movement limiting stop on one end thereof adapted to engage the interior side of a cabinet side wall, said closure positive locking member being attached to the other end of the locking bar member and extending from such end toward said stop in spaced parallel relation to the locking bar member, said lock body being captive on the locking bar member between said stop and closure positive locking member. 7. An attachment lock for cabinet closures comprising a lock body having a longitudinal guide passage therethrough and a relatively movable locking bar member extending through said guide passage, a mounting plate secured to one end of the locking bar member and adapted for securement to the outer face of a cabinet side wall rearwardly of a cabinet closure to be locked against forward movement whereby said locking bar member is stationary relative to the lock body when the attachment lock is installed, said lock body slidable longitudinally parallel relative to said locking bar member between a locking position and a release position, and a closure positive locking member carried bodily by said lock body and lying in a plane parallel to the locking bar member and spaced laterally therefrom, said closure positive locking member adapted to assume a locking position relative to said closure when the lock body and locking bar member are slidably moved relatively in one longitudinal direction and adapted to assume a retracted closure release position when the lock body and locking bar member are slidably moved relatively in an opposite longitudinal direction, and a one way free moving one way positively engaging lock mechanism on the lock body and locking bar member in cooperative relation thereon. 8. An attachment lock as defined in claim 7, and said lock mechanism comprising a key operable tumbler lock within the lock body. 9. An attachment lock as defined in claim 7, and said lock mechanism comprising a permutation lock mechanism on the lock body. 10. An attachment lock as defined in claim 7, and said mounting plate having a pair of spaced screw-threaded openings adapted to receive screws extending through the cabinet side wall from the interior of such wall. 11. An attachment lock as defined in claim 7, in which said mounting plate is secured rigidly to one end of said locking bar member and being engageable with the exterior face of a cabinet side wall and having a pair of spaced screw-threaded openings, and a reinforcing mounting plate on the interior face of a cabinet side wall and having screw receiving openings in registry with said screw-threaded openings whereby the lock is adaptable to sheet metal cabinet structures. 12. An attachment lock as defined in claim 7, and said locking bar member having a series of ratchet locking teeth formed thereon with intervening locking notches, a guidance and stabilizing bar spaced from the locking bar in parallel relation thereto and coextensive therewith, said lock body having a pair of through bores slidably receiving said locking bar and guidance and stabilizing bar, and said lock mechanism including a locking tooth biased toward locking engagement within the notches of the locking bar between the ratchet teeth thereof. 13. An attachment lock as defined in claim 12, and said lock mechanism additionally comprising a key operable rotary tumbler cylinder within the lock body and having a driving spline operable to retract the locking tooth when said tumbler cylinder is turned. 14. An attachment lock for cabinet closures comprising a lock body and a relatively movable locking bar member, said locking bar member adapted for securement to a cabinet side wall rearwardly of a cabinet closure to be locked against forward movement and is stationary relative to the lock body when the attachment lock is installed, a closure positive locking member carried bodily by said lock body and lying in a plane parallel to the locking bar member and spaced laterally therefrom, a guidance and stabilizing bar spaced fom the locking bar in parallel relation thereto and coextensive therewith, said lock body having a pair of through bores slidably receiving said locking bar and guidance and stabilizing bar, a lock body retainer element on the end of the locking bar member or the guidance and stabilizing bar remote from a cabinet side wall on which the lock is installed, a mounting plate fixed to the other ends of said locking bar member and guidance and stabilizing bar and adapted for attachment to the outer face of a cabinet side wall, said closure positive locking member adapted to assume a locking position relative to said closure when the lock body is moved relative to said locking bar member and guidance and stabilizing bar in one direction and adapted to assume a retracted closure release position when the lock body is moved relative to said locking bar member and guidance and stabilizing bar in an opposite direction, and a one way free moving one way positively engaging lock mechanism on the lock body and locking bar member including a series of ratchet locking teeth formed on said locking bar member with intervening locking notches, and a locking tooth carried by the lock body and biased toward locking engagement within the notches of the locking bar between the ratchet teeth thereof. 15. An attachment lock as defined in claim 12, and said mounting plate having at least a pair of screw-threaded openings formed therethrough. 16. An attachment lock as defined in claim 14, and said locking bar and guidance and stabilizing bar being vertically spaced when in the installed position, and said lock mechanism including a key-operable rotary tumbler cylinder within the lock body operative to retract said locking tooth when said tumbler cylinder is turned, said lock body extending vertically between said bars with said key-operable rotary tumbler cylinder facing upwardly, and said closure positive locking member comprising a substantially rigid bar-like locking member secured to the vertical side of the lock body which is disposed forwardly when in the installed position. Other info: Inventors: Brady, Steven F. (Laurel, MD, US) Edelmann, James Patrick (Silver Spring, MD, US) Application Number: 578182 Filing Date: 1975-05-16 Publication_date: 1976-08-10 Assignee: Primary Class(es): 70/78 70/85, 70/90, 70/101 Other Classes: US Patent Ref:
Other Refs:
Primary Examiner: Wolfe, Robert L. Assistant Examiner: Attorney: Brady, O'Boyle & Gates |
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