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US 7,441,430 B2Granted
Device for opening a locked door or drawer
AssigneeAxis (NE) Limited
InventorsPhilip William Bull, George Robert Daintree
Life of this patent
Estimating the term…
Abstract
A device for opening a locked door or drawer, which device comprises; a) means for facilitating the insertion of a key into a lock; and b) means for rotating said key when inserted.
Claims7
A device for opening a locked door or drawer, which device comprises;
- a) means for facilitating the insertion of a key into a lock, said means comprising a rotatable guide having a slot for accommodating the shank of a key and facilitating the entry of said key into a lock, said rotatable guide being rotatable independently of said lock in the absence of a key;
- b) means for rotating said key when inserted;
- and
- c) alignment means which, in use, will index said slot in a position in which it is aligned with said lock to facilitate insertion of a key therein, wherein said alignment means (c) comprises a spring loaded detent which acts (or reacts) on said rotatable guide to index said rotatable guide when said slot is aligned with said lock;
- further comprising a handle displaceable to rotate said rotatable guide;
- wherein said handle comprises a knob.
3 more elements
A device for opening a locked door or drawer, which device comprises;
- a) means for facilitating the insertion of a key into a lock, said means comprising a rotatable guide having a slot for accommodating the shank of a key and facilitating the entry of said key into a lock, said rotatable guide being rotatable independently of said lock in the absence of a key;
- b) means for rotating said key when inserted;
- and
- c) alignment means which, in use, will index said slot in a position in which it is aligned with said lock to facilitate insertion of a key therein, wherein said alignment means (c) comprises a spring loaded detent which acts (or reacts) on said rotatable guide to index said rotatable guide when said slot is aligned with said lock;
- further comprising a handle displaceable to rotate said rotatable guide, wherein said handle has a recess to accommodate at least part of the head of a key when inserted in a lock.
2 more elements
A door fitted with a device for opening a locked door, which device comprises;
- a) means for facilitating the insertion of a key into a lock, said means comprising a rotatable guide having a slot for accommodating the shank of a key and facilitating the entry of said key into a lock, said rotatable guide being rotatable independently of said lock in the absence of a key;
- b) means for rotating said key when inserted;
- and
- c) alignment means which, in use, will index said slot in a position in which it is aligned with said lock to facilitate insertion of a key therein, wherein said alignment means (c) comprises a spring loaded detent which acts (or reacts) on said rotatable guide to index said rotatable guide when said slot is aligned with said lock;
- further comprising a handle displaceable to rotate said rotatable guide;
- wherein said handle comprises a knob.
3 more elements
Dependencies are inferred from the claim text.