Patents by Inventor Jason Curtis Clifford
Jason Curtis Clifford has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10808421Abstract: An exemplary lock cylinder includes a shell, a plug positioned in the shell, and a locking assembly. The locking assembly is configured to prevent rotation of the plug when no key is inserted, and to permit rotation of the plug upon insertion of any of a plurality of keys having different bitting profiles. The locking assembly may further be configured to prevent key extraction when the plug is in a rotated position.Type: GrantFiled: June 7, 2019Date of Patent: October 20, 2020Assignee: Schlage Lock Company LLCInventors: Jason Curtis Clifford, Scott Douglas Welsby, Brian Andrew Rappl, Brian Edward Walls, Peter Malenkovic, Kenton Hayes Barker
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Publication number: 20200024865Abstract: An exemplary lock cylinder includes a shell, a plug positioned in the shell, and a locking assembly. The locking assembly is configured to prevent rotation of the plug when no key is inserted, and to permit rotation of the plug upon insertion of any of a plurality of keys having different bitting profiles. The locking assembly may further be configured to prevent key extraction when the plug is in a rotated position.Type: ApplicationFiled: June 7, 2019Publication date: January 23, 2020Inventors: Jason Curtis Clifford, Scott Douglas Welsby, Brian Andrew Rappl, Brian Edward Walls, Peter Malenkovic, Kenton Hayes Barker
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Patent number: 9694505Abstract: An actuator assembly including a mounting device, a manual actuator rotatably mounted on the mounting device, and a cutting mechanism. The cutting mechanism is disposed in a gap that is formed between the manual actuator and the mounting device. The cutting mechanism is structured to cut a ligature inserted into the gap.Type: GrantFiled: February 18, 2015Date of Patent: July 4, 2017Assignee: Schlage Lock Company LLCInventor: Jason Curtis Clifford
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Patent number: 9624696Abstract: An exemplary locking cartridge includes a generally cylindrical housing, first and second plates, and a sliding member. The plates are rotatable with respect to the housing, and at least one of the plates is movable in the axial direction of the housing. The housing and the movable plate include cam surfaces that interact to cause the movable plate to move toward the other plate when the movable plate is rotated. The sliding member is slidingly coupled to one of the plates and operable in a blocked state in which the sliding member resists axial motion of the movable plate, and an unblocked state in which the sliding member does not resist axial motion of the movable plate.Type: GrantFiled: June 4, 2014Date of Patent: April 18, 2017Assignee: Schlage Lock Company LLCInventors: Jason Curtis Clifford, Evan Earl Evans
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Patent number: 9598880Abstract: In an exemplary embodiment, a plug assembly includes a plug body, a sidebar, a cover plate, and a plurality of rack pins positioned in the plug assembly. A first portion of the sidebar is positioned in the plug and a second portion protrudes beyond the outer surface of the plug body. The rack pins are configured to selectably resist and permit radially inward motion of the sidebar. The cover plate is operable to selectably retain the rack pins within the plug body.Type: GrantFiled: February 28, 2014Date of Patent: March 21, 2017Assignee: Schlage Lock Company LLCInventors: Brian Edward Walls, Jason Curtis Clifford, Scott Douglas Welsby
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Patent number: 9512638Abstract: A lock cylinder generally including a shell, a plug positioned within the shell, a locking member, and a leaf spring. The plug includes an opening which is aligned with a recess formed in the shell. The locking member is configured to selectively prevent rotation of the plug with respect to the shell. The leaf spring is positioned in the opening and includes a first portion extending radially inward toward the keyway, and a second portion extending radially outward toward the recess. When a key is inserted, a tip of the second portion extends into the recess. When the plug is subsequently rotated, a tapered surface of the recess urges the tip radially inward and into contact with an inner surface of the shell.Type: GrantFiled: February 9, 2015Date of Patent: December 6, 2016Assignee: Schlage Lock Company LLCInventors: Jason Curtis Clifford, Brian Andrew Rappl
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Patent number: 9447605Abstract: A plug assembly for a lock includes a generally cylindrical plug body that defines a keyway and a generally cylindrical plug housing that rotatably receives the plug body. A plurality of blocking members are housed in the plug body and are movable into the keyway upon rotation of the plug body relative to the plug housing to obstruct the keyway. A key can be provided that is positionable into the keyway, and the blade of the key defines receptacles for receiving the blocking members when the plug body is rotated so that the lock can be unlocked. However, the blocking members prevent rotation of the plug body when a picking tool or unauthorized key is inserted in the keyway since either the blocking members cannot move into the keyway and remain engaged to the plug housing due to the object in the keyway, or obstruct the keyway and prevent insertion of the picking tool.Type: GrantFiled: March 11, 2015Date of Patent: September 20, 2016Assignee: Schlage Lock Company LLCInventors: Jason Curtis Clifford, Brian Edward Walls, Evan Earl Evans
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Patent number: 9447608Abstract: A locking cartridge including a housing, first and second plates rotatably mounted in the housing, a blocking member, and a movable member. The cartridge also includes a cam interface which urges the first plate toward the second plate when the plates are rotated. The blocking member is configured to move among a blocking position and an unblocking position in response to engagement with a first cut on a key. When in the blocking position, the blocking member blocks the first plate from moving toward the second plate. With the second plate blocked from moving toward the first plate, the cam interface prevents rotation of the first plate. The movable member is configured to move among a first position and a second position in response to engagement with a second cut on the key. In certain embodiments, the movable member may be a control pin or a second blocking member.Type: GrantFiled: October 28, 2014Date of Patent: September 20, 2016Assignee: Schlage Lock Company LLCInventors: Jason Curtis Clifford, Evan Earl Evans
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Publication number: 20160265247Abstract: A plug assembly for a lock includes a generally cylindrical plug body that defines a keyway and a generally cylindrical plug housing that rotatably receives the plug body, A plurality of blocking members are housed in the plug body and are movable into the keyway upon rotation of the plug body relative to the plug housing to obstruct the keyway. A key can be provided that is positionable into the keyway, and the blade of the key defines receptacles for receiving the blocking members when the plug body is rotated so that the lock can be unlocked. However, the blocking members prevent rotation of the plug body when a picking tool or unauthorized key is inserted in the keyway since either the blocking members cannot move into the keyway and remain engaged to the plug housing due to the object in the keyway, or obstruct the keyway and prevent insertion of the picking tool.Type: ApplicationFiled: March 11, 2015Publication date: September 15, 2016Inventors: Jason Curtis Clifford, Brian Edward Walls, Evan Earl Evans
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Patent number: 9435138Abstract: A plug assembly including, a plug, a sidebar movably mounted on the plug, and a plurality of rack pins seated in the plug. The sidebar is biased to an outer position in which the sidebar extends beyond an outer surface of the plug. Each rack pin is a single-piece unitary structure including a key-following leg, and a sidebar-engaging leg. The sidebar-engaging leg includes at least one true gate and a plurality of false gates. When a true gate of each rack pin is aligned with the sidebar, the sidebar is free to move radially inward to an inner position.Type: GrantFiled: February 26, 2015Date of Patent: September 6, 2016Assignee: Schlage Lock Company LLCInventors: Brian Edward Walls, Jason Curtis Clifford, Scott Douglas Welsby
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Publication number: 20160237719Abstract: An actuator assembly including a mounting device, a manual actuator rotatably mounted on the mounting device, and a cutting mechanism. The cutting mechanism is disposed in a gap between the manual actuator and the mounting device, and is configured to cut a ligature inserted into the gap.Type: ApplicationFiled: February 18, 2015Publication date: August 18, 2016Inventor: Jason Curtis Clifford
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Publication number: 20160115711Abstract: A locking cartridge including a housing, first and second plates rotatably mounted in the housing, a blocking member, and a movable member. The cartridge also includes a cam interface which urges the first plate toward the second plate when the plates are rotated. The blocking member is configured to move among a blocking position and an unblocking position in response to engagement with a first cut on a key. When in the blocking position, the blocking member blocks the first plate from moving toward the second plate. With the second plate blocked from moving toward the first plate, the cam interface prevents rotation of the first plate. The movable member is configured to move among a first position and a second position in response to engagement with a second cut on the key. In certain embodiments, the movable member may be a control pin or a second blocking member.Type: ApplicationFiled: October 28, 2014Publication date: April 28, 2016Inventors: Jason Curtis Clifford, Evan Earl Evans
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Publication number: 20150354246Abstract: An exemplary locking cartridge includes a generally cylindrical housing, first and second plates, and a sliding member. The plates are rotatable with respect to the housing, and at least one of the plates is movable in the axial direction of the housing. The housing and the movable plate include cam surfaces that interact to cause the movable plate to move toward the other plate when the movable plate is rotated. The sliding member is slidingly coupled to one of the plates and operable in a blocked state in which the sliding member resists axial motion of the movable plate, and an unblocked state in which the sliding member does not resist axial motion of the movable plate.Type: ApplicationFiled: June 4, 2014Publication date: December 10, 2015Inventors: Jason Curtis Clifford, Evan Earl Evans
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Publication number: 20150247344Abstract: In an exemplary embodiment, a plug assembly includes a plug body, a sidebar, a cover plate, and a plurality of rack pins positioned in the plug assembly. A first portion of the sidebar is positioned in the plug and a second portion protrudes beyond the outer surface of the plug body. The rack pins are configured to selectably resist and permit radially inward motion of the sidebar. The cover plate is operable to selectably retain the rack pins within the plug body.Type: ApplicationFiled: February 28, 2014Publication date: September 3, 2015Inventors: Brian Edward Walls, Jason Curtis Clifford, Scott Douglas Welsby
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Publication number: 20150247343Abstract: A plug assembly including, a plug, a sidebar movably mounted on the plug, and a plurality of rack pins seated in the plug. The sidebar is biased to an outer position in which the sidebar extends beyond an outer surface of the plug. Each rack pin is a single-piece unitary structure including a key-following leg, and a sidebar-engaging leg. The sidebar-engaging leg includes at least one true gate and a plurality of false gates. When a true gate of each rack pin is aligned with the sidebar, the sidebar is free to move radially inward to an inner position.Type: ApplicationFiled: February 26, 2015Publication date: September 3, 2015Inventors: Brian Edward Walls, Jason Curtis Clifford, Scott Douglas Welsby
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Publication number: 20150225981Abstract: A lock cylinder generally including a shell, a plug positioned within the shell, a locking member, and a leaf spring. The plug includes an opening which is aligned with a recess formed in the shell. The locking member is configured to selectively prevent rotation of the plug with respect to the shell. The leaf spring is positioned in the opening and includes a first portion extending radially inward toward the keyway, and a second portion extending radially outward toward the recess. When a key is inserted, a tip of the second portion extends into the recess. When the plug is subsequently rotated, a tapered surface of the recess urges the tip radially inward and into contact with an inner surface of the shell.Type: ApplicationFiled: February 9, 2015Publication date: August 13, 2015Inventors: Jason Curtis Clifford, Brian Andrew Rappl
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Publication number: 20140216114Abstract: An exemplary lock cylinder includes a shell, a plug positioned in the shell, and a locking assembly. The locking assembly is configured to prevent rotation of the plug when no key is inserted, and to permit rotation of the plug upon insertion of any of a plurality of keys having different bitting profiles. The locking assembly may further be configured to prevent key extraction when the plug is in a rotated position.Type: ApplicationFiled: February 7, 2014Publication date: August 7, 2014Inventors: Jason Curtis Clifford, Scott Douglas Welsby, Brian Andrew Rappl, Brian Edward Walls, Peter Malenkovic, Kenton Hayes Barker