Lock-up housing for door lock

Claim 1

A doorway locking assembly comprising a door jamb having a doorway opening therethrough, a door in said doorway opening, said door having an inner side disposed substantially in a vertical plane, a door locking device mounted on the inner side of said door, said door locking device having a manipulatable locking and unlocking control means thereon extending in a direction outwardly from one side of said door, a lock-up housing unit, said unit comprising: a base having an opening means therethrough receiving at least a portion of said locking device and said control means being inside of said housing unit and guarded by said housing unit, means securing said base to said door, a lid, a lid-lock in said housing, said lid-lock being operable to lock said lid to said base and to unlock said lid from said base, said lid-lock being controllable from the outside of said housing unit, said lid and said base and said lid-lock forming an enclosing assembly which latter sufficiently encloses said control means that a thief cannot manipulate said control means from the lid side of said unit without removing said lid, said lid being removably attached to said base for movement away from said base when said lid-lock is unlocked, said lid being sufficiently large that when said lid is removed from said base this will give an operator sufficient access to said control means to manually operate said control means, that side of said base which faces said door defining a forward side of said base, said lid extending across the rearward side of said base, said lid fitting inside of said base and lapping said base for making it difficult for a thief to insert a prying tool in the space between said lid and said base, said lid and base forming a pair of closure members, one side of at least one of said closure members having both a certain groove means therein and having a certain ridge means thereon, said certain ridge means being disposed exteriorly on its closure member of the groove means of its closure member, the other closure having a groove means removably receiving the ridge means of said one closure member, said one closure member having a wall thickness on an opposite side of its groove from its ridge which latter wall thickness is equal to the wall thickness at its said ridge.