A multiple function lock comprising a body, an engaging element having a first end and a second end, a locking mechanism for securing the first end and the second end of the engaging element to the body, and a gate mechanism for selectively concealing or revealing a passage in the body through which
A multiple function lock comprising a body, an engaging element having a first end and a second end, a locking mechanism for securing the first end and the second end of the engaging element to the body, and a gate mechanism for selectively concealing or revealing a passage in the body through which the second end may move to unlock the lock. In certain embodiments, a multiple function lock may comprise a body, a U-shaped shackle having toe and heel portions, the heel portion rotatably secured within the body, a locking mechanism for locking the heel and the toe portions within the body, a passage through the body adjacent to the toe portion, the toe portion adapted to move through the passage to unlock the lock, and either a retaining cup, an adjustable gate, or an outer housing, each being adapted to selectively block or reveal the passage.
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The invention claimed is: 1. A multiple function lock comprising: a body; a U-shaped shackle having a toe portion and a heel portion, said heel portion rotatably secured within said body; a passage having an external portion through said body adjacent to said toe portion, said toe portion adapted t
The invention claimed is: 1. A multiple function lock comprising: a body; a U-shaped shackle having a toe portion and a heel portion, said heel portion rotatably secured within said body; a passage having an external portion through said body adjacent to said toe portion, said toe portion adapted to move through said external portion of said passage upon rotation of said heel portion to unlock said lock, said body further defining a blocking member slideable between a blocking position concealing said external portion of said passage and thereby restricting said toe portion from moving through said passage and an open position revealing said external portion of said passage to permit said toe portion to move therethrough; wherein said blocking member is a retaining cup adapted to be housed within said body, said retaining cup being arranged to move between a first position in which a barrier member blocks said passage and a second position in which said barrier member is clear of said passage; wherein said body further comprises a slot and said blocking member further comprises a bore, said bore adapted to receive a tool through said slot, the tool adapted to selectively rotate said retaining cup between said first position and said second position. 2. A multiple function lock comprising: a body; a U-shaped shackle having a toe portion and a heel portion, said heel portion rotatably secured within said body; a passage having an external portion through said body adjacent to said toe portion, said toe portion adapted to move through said external portion of said passage upon rotation of said heel portion to unlock said lock, said body further defining a blocking member slideable between a blocking position concealing said external portion of said passage and thereby restricting said toe portion from moving through said passage and an open position revealing said external portion of said passage to permit said toe portion to move therethrough; wherein the tool may be inserted into said body only through a mating hole in said body forming a portion of a slot, said mating hole aligned with a bore. 3. A multiple function lock comprising: a body; a U-shaped shackle having a toe portion and a heel portion, said heel portion rotatably secured within said body; a passage having an external portion through said body adjacent to said toe portion, said toe portion adapted to move through said external portion of said passage upon rotation of said heel portion to unlock said lock, said body further defining a blocking member slideable between a blocking position concealing said external portion of said passage and thereby restricting said toe portion from moving through said passage and an open position revealing said external portion of said passage to permit said toe portion to move therethrough; the multiple function lock further comprising a spring adapted to mate with said blocking member to default said blocking member to a position concealing said passage. 4. A multiple function lock comprising: a body having side portions; a U-shaped shackle having toe and heel portions, said heel portion rotatably secured within said body; a passage through said body adjacent to said toe portion, said toe portion adapted to move through said passage to unlock said lock upon rotation of said heel portion; and, an outer housing wrapping partially around said side portions of said body, said outer housing being moveable between a first position concealing said passage and a second position revealing said passage. 5. The multiple function lock of claim 4, wherein said outer housing further comprises an aperture adapted to accept a tool for moving said outer housing between said first position and said second position. 6. The multiple function lock of claim 4, wherein said body includes a plurality of channels on the outer surface thereof, said outer housing adapted to engage said channels to attach said outer housing to said body. 7. The multiple function lock of claim 4, wherein said body houses a spring adapted to apply force to said outer housing such that said outer housing defaults to said first position. 8. The multiple function lock of claim 4, wherein said body further comprises a pin-tumbler mechanism and said outer housing further comprises at least one aperture aligned with said pin-tumbler mechanism, said pin-tumbler mechanism restricting movement of said outer housing relative to said body until said pin-tumbler system is aligned along a shear plane. 9. The multiple function lock of claim 4, wherein said outer housing extends beyond said body. 10. A multiple function lock comprising: a body; a U-shaped shackle having a toe portion and a heel portion, said heel portion rotatably secured within said body; a passage having an external portion through said body adjacent to said toe portion, said toe portion adapted to move through said external portion of said passage upon rotation of said heel portion to unlock said lock; a blocking member moveable between a blocking position concealing said external portion of said passage and thereby restricting said toe portion from moving through said passage and an open position revealing said external portion of said passage to permit said toe portion to move therethrough; and, a spring adapted to mate with said blocking member to default said blocking member to a position concealing said passage. 11. The multiple function lock of claim 10, wherein said blocking member is a retaining cup adapted to be housed within said body, said retaining cup being arranged to move between a first position in which a barrier member blocks said passage and a second position in which said barrier member is clear of said passage. 12. The multiple function lock of claim 11, wherein said retaining cup is moveable by rotation and adapted to be engaged by a tool to rotate. 13. The multiple function lock of claim 10, wherein said blocking member comprises a base with a blocking element extending therefrom. 14. The multiple function lock of claim 13, wherein said base is cylindrical. 15. A multiple function lock comprising: a body; a U-shaped shackle having a toe portion and a heel portion, said heel portion rotatably secured within said body; a passage having an external portion through said body adjacent to said toe portion, said toe portion adapted to move through said external portion of said passage upon rotation of said heel portion to unlock said lock, said body further defining a blocking member moveable between a blocking position concealing said external portion of said passage and thereby restricting said toe portion from moving through said passage and an open position revealing said external portion of said passage to permit said toe portion to move therethrough; wherein said blocking member is a retaining cup adapted to be housed within said body, said retaining cup being arranged to move between a first position in which a barrier member blocks said passage and a second position in which said barrier member is clear of said passage; wherein said body further comprises a slot and said blocking member further comprises a bore, said bore adapted to receive a tool through said slot, the tool adapted to selectively rotate said retaining cup between said first position and said second position.
Olshausen, Michael Cohnitz, Pop-up, precision lock-cylinder that reveals at once, with visual and tactile cues, who else with a key has sought or gained entry.
Valerio, Theodore; Payne, Stephen, Locking mechanism, for a padlock for example, in which a shackle can be severed for luggage inspection and then relocked.
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