A door lock includes a latch driving device having a thumb turn that can be switched between a locking position not permitting movement of a latch to an unlatching position when an outer handle is pivoted and an unlocking position permitting movement of the latch to unlatching position when the outer handle is pivoted. The thumb turn includes an actuator controlling a switch to a conductive state or a non-conductive state. When the thumb turn is in the locking position, the switch is in the conductive state, and a lighting element controlled by the switch generates light transmitting through the first lid. When the thumb turn is in the unlocking position, the switch is in the non-conductive state, and the lighting element does not generate light. Thus, the locking or unlocking state of the door lock can be identified by sight.

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 includes a key-following leg and a sidebar-engaging leg. The sidebar-engaging leg includes at least one true gate. 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.

A piezoelectric energy harvester system for collecting kinetic energy is provided, wherein the kinetic energy is converted into electrical energy, and wherein at least a portion of the converted electrical energy is utilized to operate a load. The system comprises an energy input portion and an energy harvesting portion. The energy input portion includes an input member configured to be actionable by an outside force. The energy harvesting portion includes a capture member, a sprocket portion, and a piezoelectric energy harvester. The capture member is adapted for receiving mechanical input from the input member. The sprocket portion is disposed for movement with the capture member. The sprocket portion includes at least one radially disposed sprocket actuator configured for making contact with and exciting the piezoelectric energy harvester. The piezoelectric energy harvester is excited by the contact to produce the kinetic energy.

A deadbolt securing assembly includes a restraint that has a rounded portion being positionable around a stem of a doorknob on a door. The restraint has a rhombus portion that is spaced from the rounded portion. The rhombus portion is positionable around a deadbolt knob on the door when the rounded portion is positioned around the stem of the doorknob. Thus, the restraint inhibits the deadbolt knob from being rotated when the restraint is positioned between the doorknob and the deadbolt knob. In this way the restraint inhibits the door from being unlocked with a key. A doorknob pad is coupled to the rounded portion of the restraint to frictionally engage the stem of the doorknob. A deadbolt pad is coupled to the rhombus portion of the restraint to frictionally engage the deadbolt knob.

An indicator lock has a rotatable indicator which rotates with the depression of a button on the other side of the lock which is used to simultaneously cause a door to be locked and rotate the indicator. This is accomplished by way of a shaft which rotationally moves with the the locking button. The locking button is pressed inwards and rotates as it is pressed inwards due to a channel which is diagonally disposed relative to the direction the button is pressed. A pin extending out from a shaft of the button is in the diagonal channel and a spring adds tension to push the button and display back to the unlocked configuration. This tension is overcome when the button is pressed and the pin enters into a section of the channel which is parallel to the shaft and direction of button press.

A status indicating handle assembly generally includes a handle, an activation carrier mounted in the handle, and a status indicator mounted in the handle and engaged with the activation carrier. The handle includes a shank extending along a longitudinal axis and a grip portion extending laterally from the shank. The activation carrier is mounted in the shank, and has an unlocking position and a locking position. The status indicator has a first state in which a first indicium is displayed and a second state in which the first indicium is not displayed. The activation carrier transitions the status indicator between the first state and the second state as the activation carrier moves between the locking position and the unlocking position.

A piezoelectric energy harvester system for collecting kinetic energy is provided, wherein the kinetic energy is converted into electrical energy, and wherein at least a portion of the converted electrical energy is utilized to operate a load. The system comprises an energy input portion and an energy harvesting portion. The energy input portion includes an input member configured to be actionable by an outside force. The energy harvesting portion includes a capture member, a sprocket portion, and a piezoelectric energy harvester. The capture member is adapted for receiving mechanical input from the input member. The sprocket portion is disposed for movement with the capture member. The sprocket portion includes at least one radially disposed sprocket actuator configured for making contact with and exciting the piezoelectric energy harvester. The piezoelectric energy harvester is excited by the contact to produce the kinetic energy.

A door handle set includes a handle assembly having a primary lock and having a handle rotatable about a primary rotational axis. A latch bolt assembly has a latch bolt. The latch bolt assembly is operatively coupled to the handle assembly, wherein a rotation of the handle results in a linear translation of the latch bolt. A supplemental lock has a second axis parallel to, and spaced apart from, the primary rotational axis. The supplemental lock has an actuator that is operable relative to the second axis. The supplemental lock is configured to selectively block the rotation of the handle regardless of the locking state of the primary lock.

A tubular lock for push locking has a lock housing, a switching handle mounted in a front end portion of the lock housing, an upper pin seat and a lower pin seat mounted in the lock housing and the switching handle, and multiple pin assemblies and a core shaft mounted in the upper pin seat and the lower pin seat. A key is only needed when unlocking the tubular lock, and then the tubular lock can be locked by pushing the core shaft. The tubular lock can be used to latch a pivotal mechanism. When the tubular lock is in an unlocking state, the user can switch the latch to the locking angular position or an unlocking angular position by turning the switching handle without using the key. Therefore, flexibility and convenience in using the tubular lock can be efficiently improved.

A lockset including a chassis having a locked state and an unlocked state, a latchbolt connected with the chassis, a handle mounted to the chassis, and a lock cylinder connected with the chassis. The handle is operable to retract the latchbolt when the chassis is unlocked, and is inoperable to retract the latchbolt when the chassis is locked. The lock cylinder includes a shell and a plug selectively rotatable relative to the shell. The chassis is configured to transition from the locked state to the unlocked state in response to rotation of the plug in a first rotational direction from a home position to a first rotated position. The chassis is configured to return from the unlocked state to the locked state in response to rotation of the plug in a second rotational direction from the first rotated position to the home position.