High security padlock construction
First Claim
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1. A high security padlock constructed for ease-of-use as well as for substantially eliminating the ability of unauthorized persons from opening the padlock, said padlock comprising:
- a housing incorporating a combination section incorporating a first, central elongated bore longitudinally extending through the center of the housing, and a second elongated bore formed in juxtaposed, spaced, substantially parallel relationship to the first central bore;
a plurality of dial receiving zones formed in the housing, each of said receiving zonesextending substantially perpendicularly to the axis of the first central bore, anddefined by two juxtaposed, spaced, parallel facing surfaces, each of said surfaces extending perpendicularly to the central axis of the central bore; and
at least one elongated release channel formed in the first central bore and axially extending therewith, said elongated release channel defining a zone for enabling the opening of the padlock;
an elongated shaft mounted in the first central bore and constructed for axial, longitudinal movement therein, said shaft comprising a first end and a second end;
a shackle comprising a generally J-shape, incorporating a short leg having a terminating end constructed for cooperative locking and unlocking engagement with the housing, and also incorporating a notched zone formed in said short leg adjacent to the terminating end, and a long leg cooperatively mounted in the second elongated bore of the housing for axial movement and pivoting movement relative thereto, and incorporating a notched zone formed therein and positioned in cooperating alignment with the notched zone of the short leg;
a plurality of tumbler sleeves, each of said tumbler sleeves being rotationally mounted to the elongated shaft for rotational movement about the central axis thereof, andincorporating at least one radially extending fin formed on the outside surface thereof and constructed for cooperative association with at least one of the elongated release channels for preventing axial movement of the shaft as well as enabling the axial movement thereof when each of said radial fins are positioned in one of the elongated release channels;
a plurality of dials, each of said dials mounted in a dial receiving zone of the housing, peripherally surrounding a tumbler sleeve for cooperating therewith; and
two shackle locking members mounted in the housing in cooperating relationship with the notched zones of the shackle; and
a cam member mounted to the first terminating end of the shaft and positioned in cooperating relationship with the notched zones of the shackle and the shackle locking members for controllably guiding and moving the locking members between a first locked position wherein a portion of each locking member is engaged in one notched zone of the shackle, and a second unlocked position wherein the locking members are disengaged from the notched.
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Accused Products
Abstract
By providing a unique cam member which cooperatingly controls shackle locking elements to move between a first locked position and a second unlocked position, an effective, easily produced, high security padlock is achieved. Furthermore, the high security padlock of the present invention is constructed, in one embodiment, for being controlled by use of a combination system and, in an alternate embodiment, for being controlled by using either a combination system or a key and tumbler system.
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Citations
20 Claims
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1. A high security padlock constructed for ease-of-use as well as for substantially eliminating the ability of unauthorized persons from opening the padlock, said padlock comprising:
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a housing incorporating a combination section incorporating a first, central elongated bore longitudinally extending through the center of the housing, and a second elongated bore formed in juxtaposed, spaced, substantially parallel relationship to the first central bore; a plurality of dial receiving zones formed in the housing, each of said receiving zones extending substantially perpendicularly to the axis of the first central bore, and defined by two juxtaposed, spaced, parallel facing surfaces, each of said surfaces extending perpendicularly to the central axis of the central bore; and at least one elongated release channel formed in the first central bore and axially extending therewith, said elongated release channel defining a zone for enabling the opening of the padlock; an elongated shaft mounted in the first central bore and constructed for axial, longitudinal movement therein, said shaft comprising a first end and a second end; a shackle comprising a generally J-shape, incorporating a short leg having a terminating end constructed for cooperative locking and unlocking engagement with the housing, and also incorporating a notched zone formed in said short leg adjacent to the terminating end, and a long leg cooperatively mounted in the second elongated bore of the housing for axial movement and pivoting movement relative thereto, and incorporating a notched zone formed therein and positioned in cooperating alignment with the notched zone of the short leg; a plurality of tumbler sleeves, each of said tumbler sleeves being rotationally mounted to the elongated shaft for rotational movement about the central axis thereof, and incorporating at least one radially extending fin formed on the outside surface thereof and constructed for cooperative association with at least one of the elongated release channels for preventing axial movement of the shaft as well as enabling the axial movement thereof when each of said radial fins are positioned in one of the elongated release channels; a plurality of dials, each of said dials mounted in a dial receiving zone of the housing, peripherally surrounding a tumbler sleeve for cooperating therewith; and two shackle locking members mounted in the housing in cooperating relationship with the notched zones of the shackle; and a cam member mounted to the first terminating end of the shaft and positioned in cooperating relationship with the notched zones of the shackle and the shackle locking members for controllably guiding and moving the locking members between a first locked position wherein a portion of each locking member is engaged in one notched zone of the shackle, and a second unlocked position wherein the locking members are disengaged from the notched. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A high security dual locking mode padlock constructed for ease-of-use as well as for substantially eliminating the ability of unauthorized persons from opening the padlock, said padlock comprising:
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a housing incorporating a combination controlled section and a key controlled section, comprising a first, central elongated bore longitudinally extending through the center of the housing, a second elongated bore formed in juxtaposed, spaced, substantially parallel relationship to the first central bore; and
a cavity for receiving and retaining the key controlled section;a plurality of dial receiving zones formed in the housing, each of said receiving zones extending substantially perpendicularly to the axis of the first central bore, and defined by two juxtaposed, spaced, parallel facing surfaces, each of said surfaces extending perpendicularly to the central axis of the central bore; and at least one elongated release channel formed in the first central bore and axially extending therewith, said elongated release channel defining a zone for enabling the opening of the padlock; an elongated shaft mounted in the first central bore and constructed for axial, longitudinal movement therein, said shaft comprising a first end and a second end; a shackle comprising a generally J-shape, incorporating a short leg having a terminating end constructed for cooperative locking and unlocking engagement with the housing, and also incorporating a notched zone formed in said shaft leg adjacent to the terminating end, and a long leg cooperatively mounted in the second elongated bore of the housing for axial movement and pivoting movement relative thereto, and incorporating a notched zone formed therein and positioned in cooperating alignment with the notched zone of the short leg; a plurality of tumbler sleeves, each of said tumbler sleeves being rotationally mounted to the elongated shaft for rotational movement about the central axis thereof, and incorporating at least one radially extending fin formed on the outside surface thereof and constructed for cooperative association with at least one of the elongated release channels for preventing axial movement of the shaft as well as enabling the axial movement thereof when each of said radial fins are positioned in one of the elongated release channels; a plurality of dials, each of said dials mounted in a dial receiving zone of the housing, peripherally surrounding a tumbler sleeve for cooperating therewith; a cylinder mounted in a receiving and retaining cavity of the housing for controlled rotational movement and incorporating a key receiving slot cooperatively associated with a plurality of tumblers for preventing the rotational movement of said cylinder whenever the designated key member is not present and enabling the rotational movement of the cylinder in response to activation by the designated key member, a ridge portion formed on the rear surface of the cylinder and constructed for extending outwardly therefrom; two shackle locking members mounted in the housing in cooperating relationship with the notched zones of the shackle; a cam member mounted to the first terminating end of the shaft and positioned in cooperating relationship with the notched zones of the shackle and the shackle locking members for controllably guiding and moving the locking members between a first locked position wherein a portion of each locking member is engaged in one notched zone of the shackle, and a second unlocked position wherein the locking members are disengaged from the notched zones of the shackle; and a lever arm extending between the cylinder and the cam member and constructed for moving the cam member between the first locked position and the second unlocked position in response to controlled movement thereof by the arcuate movement of the ridge portion of the cylinder, thereby enabling the rotational movement of the cylinder in response to the activation by the designated key member to causes the ridge portion to arcuately move and simultaneously move the lever arm for causing the cam member to move from its first locked position to its second unlocked position. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification