Abstract

A locking system includes a tamper-resistant lock and key. The tamper-resistant lock can include a cylindrical lock body with an upper portion having an engagement surface defining a pattern of engagement features, a housing, and a hidden component sized and shaped to fit within the housing that includes an internal lock base into which the cylindrical lock body fastens and a padlock pin configured to secure the internal lock base to a hasp or staple. The key operable for use with the tamper-resistant lock can include a cylindrical key body defining an engagement cavity configured to receive the engagement surface of the cylindrical lock body, a set of complementary engagement features, a plurality of retractable engagement members, and a retractable collar at least partially covering the cylindrical key body.

IPC Classes  ?

• E05B 67/24 - Padlocks with sliding shackles, with or without rotary or pivotal movement with built-in cylinder locks
• E05B 67/06 - ShacklesArrangement of the shackle
• E05B 17/20 - Means independent of the locking mechanism for preventing unauthorised opening, e.g. for securing the bolt in the fastening position
• E05B 15/10 - Bolts of locks or night latches

Abstract

A locking system includes a tamper-resistant lock and key. The tamper-resistant lock includes a cylindrical lock body with external threading on at least a portion thereof and a bore extending into an end of the cylindrical lock body. The bore includes an engagement feature disposed on the wall that defines the bore, and the engagement feature is disposed a particular distance away from the bore opening. The key includes a collar that has a cylindrical key body that fits within the bore of the cylindrical lock body. The cylindrical key body also includes an opening defined by the collar sidewall, a retractable engagement member at least partially disposed within the opening, a spring disposed within the collar, and a plunger disposed within the collar that is operable to engage the spring and has a recess sized and shaped to accommodate the retractable engagement member.

IPC Classes  ?

• E05B 67/24 - Padlocks with sliding shackles, with or without rotary or pivotal movement with built-in cylinder locks
• E05B 17/20 - Means independent of the locking mechanism for preventing unauthorised opening, e.g. for securing the bolt in the fastening position
• E05B 67/06 - ShacklesArrangement of the shackle
• E05B 35/00 - Locks for use with special keys or a plurality of keys
• E05B 65/00 - Locks for special use
• E05C 5/04 - Fastening devices with bolts moving otherwise than only rectilinearly and only pivotally or rotatively both moving axially and turning about their axes to secure the wing performing both movements simultaneously, e.g. screwing into a keeper
• E05B 15/10 - Bolts of locks or night latches
• E05B 47/00 - Operating or controlling locks or other fastening devices by electric or magnetic means
• E05B 15/02 - Striking-platesKeepersBolt staplesEscutcheons

Abstract

A locking system includes a tamper-resistant lock and key. The tamper-resistant lock includes a cylindrical lock body with external threading on at least a portion thereof and a bore extending into an end of the cylindrical lock body. The bore includes an engagement feature disposed on the wall that defines the bore, and the engagement feature is disposed a particular distance away from the bore opening. The key includes a collar that has a cylindrical key body that fits within the bore of the cylindrical lock body. The cylindrical key body also includes an opening defined by the collar sidewall, a retractable engagement member at least partially disposed within the opening, a spring disposed within the collar, and a plunger disposed within the collar that is operable to engage the spring and has a recess sized and shaped to accommodate the retractable engagement member.

IPC Classes  ?

• E05B 67/24 - Padlocks with sliding shackles, with or without rotary or pivotal movement with built-in cylinder locks
• E05B 17/20 - Means independent of the locking mechanism for preventing unauthorised opening, e.g. for securing the bolt in the fastening position
• E05B 67/06 - ShacklesArrangement of the shackle
• E05B 15/10 - Bolts of locks or night latches