Lock with indicator and multiple key-operable core
First Claim
Patent Images
1. A lock comprising:
- a casing;
a core disposed in the casing and configured in such a way that a private key and a general key can be used to activate the core; and
an indicator disposed in the casing and movable from a first position to a second position by the general key and movable from the second position back to the first position by the private key.
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Abstract
A lock includes a casing, a core and an indicator. The core is disposed in the casing and configured in such a way that a private key and a general key can be used to activate the core. The indicator is disposed in the casing and movable from a first position to a second position by the general key and movable from the second position back to the first position by the private key.
39 Citations
18 Claims
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1. A lock comprising:
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a casing; a core disposed in the casing and configured in such a way that a private key and a general key can be used to activate the core; and an indicator disposed in the casing and movable from a first position to a second position by the general key and movable from the second position back to the first position by the private key. - View Dependent Claims (2, 3, 4, 5, 7, 8, 9, 10, 11)
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6. The lock as claimed in claim 6, wherein the crook-confining member comprises a compartment for receiving the indicator and a window in communication with the compartment, and the indicator comprises an indication zone visible through the window when the indicator is in the second position.
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12. A lock comprising:
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a casing; a core disposed in the casing and configured in such a way that a private key and a general key can be used to activate the core; and an indicator disposed in the casing and movable from a first position to a second position outside the casing by the general key and movable from the second position back to the first position by the private key. - View Dependent Claims (13, 14, 15)
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16. A pad lock defining an aperture in an external surface thereof and comprising:
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a crook comprising a root rotationally disposed in the casing and a free end extending out of the casing; a core disposed in the casing and configured in such a way that a private key and a general key can be used to operate the core to lock and unlock the free end of the crook; and an indicator disposed in the casing and movable from a first position to a second position outside the casing by the general key and movable from the second position back to the first position by an insertion into the aperture of the casing. - View Dependent Claims (17, 18)
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Specification