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.

The invention relates to an electromagnetic door opener comprising a housing for installing in a door frame, a pivotable cover which can be rotated between an open position and a closed position, and a security device operating counter to a forced rotation of the cover from the closed position into the open position, which comprises a primary security step and a secondary security step. Said door opener is characterized in that the secondary security step comprises a locking element which is supported in a form fit on the base of the housing of the door opener housing.

A barn door and wall strike assembly, including a barn door to slide laterally in a first direction and a second direction with respect to a door frame, a handle set assembly attached to the barn door, the handle set assembly including a handle to allow the barn door to open, and a lock having a bolt to lock the barn door when the bolt is extended, and a wall strike attached to the door frame, the strike including a plate to contact the door frame, and a bolt receiving member disposed on the plate, the bolt receiving member comprising an aperture to receive the bolt.

A barn door and wall strike assembly, including a barn door to slide laterally in a first direction and a second direction with respect to a door frame, a handle set assembly attached to the barn door, the handle set assembly including a handle to allow the barn door to open, and a lock having a bolt to lock the barn door when the bolt is extended, and a wall strike attached to the door frame, the strike including a plate to contact the door frame, and a bolt receiving member disposed on the plate, the bolt receiving member comprising an aperture to receive the bolt.

An actuator-controlled electric strike for operating in conjunction with a spring latch of a lockset is provided. The strike comprises a housing having an entry chamber therein, and a spring latch keeper disposed in the entry chamber for movement between a keeper locked position and a keeper unlocked position. The spring latch keeper is rotatable about a keeper axis of rotation. The spring latch keeper includes: a keeper face configured for abutting contact with the spring latch when the spring latch is disposed in the entry chamber and the spring latch is in the engaged position; a second surface recessed from the keeper face, and a spring latch contact ridge positioned between the keeper face and the second surface, wherein the spring latch contact ridge is disposed at a non-perpendicular angle from the keeper axis of rotation.

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 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 barn door strike assembly to receive a barn door lock bolt, the strike assembly including a main body having a first side to contact a door frame, the main body including a bolt receiving aperture disposed within a second side of the main body to receive the barn door lock bolt therein, and a strike base disposed at the first side of the main body, the strike base including a main body contacting portion connected to the main body to attach the main body to the door frame, and a plurality of connecting members to fasten the main body contacting portion to the door frame, and a plurality of apertures disposed within the main body contacting portion to receive the plurality of connecting members therethrough.

An electric strike assembly includes a housing formed with a recessed portion therein, a keeper assembly pivotably mounted in the recessed portion of the housing, a lock leg pivotably mounted in the recessed portion of the housing and configured to rotate independently of the rotation of the keeper assembly, a block assembly having a blocking element configured to engage and disengage the keeper assembly, and to control engagement and disengagement of the blocking element with the keeper assembly. A method of capturing and releasing a latch bolt mounted in a door includes mounting an electric strike assembly in an associated door jamb and controlling an actuator to rotate an, actuator paddle to engage a blocking element such that the blocking element is engaged or disengaged from a keeper assembly.

The present invention discloses a one-side rotating arc lock which comprises an adjusting assembly arranged on a first shell and a strainer arranged on a second shell. The adjusting assembly comprises an arc adjuster rotatably connected with the first shell. The arc adjuster is provided with multiple protrusions in the circumferential direction, used for adjusting the angle between the first and the second shell. Groove is provided on the protrusion. The strainer comprises an adjusting rod which matches the groove for locking the first and the second shell. The angle between the first and the second shell is adjusted through the arc adjuster rotatably connected with the first shell, and locking of the first and the second shell is achieved through the strainer. The one-side rotating arc lock of the preset invention not only has a simple structure and easy to operate, but also facilitates adjustment of the angle.