The disclosure relates to a magnetic-actuation latch device. The magnetic-actuation latch device includes a housing, a latch element, a sliding plate, an elastic component, a rotating element and a limitation element. A lateral opening of the housing spatially corresponds a first magnetic block mounted on a fixed component. When a second magnetic block of the latch element is aligned to the first magnetic block, an actuation force is generated to drive the latch element to pass through the lateral opening and engage with the fixed component. The elastic component is connected between the sliding plate and the housing. When the rotating element is rotated by an external force, the sliding plate is driven to misalign the second magnetic block from the first magnetic block, and the latch element does not pass through the lateral opening. The limitation element is pivotally connected to the housing for blocking the rotating element.

An elevator call box with internal, concealable latching mechanism comprises an internally disposed, cylindrical magnetic pin with a relatively low pull force that is slidably displaceable by an larger, external magnetic force supplied by a service technician. When the access door is closed, magnetic pin penetrates an orifice in a locking tab to lock the call box. The pin magnet is normally attracted to an adjacent, magnetically attractive clip snap-fitted to a latching block. The latch is externally disengaged via a stronger portable magnet carried by service personnel. The larger magnetic pull force of the portable magnet slidably displaces the smaller magnetic latch pin, freeing the locking tab to permit pivotal opening of the access door. Once the stronger magnet is moved away, the smaller magnetic pin, which is attracted magnetically to the clip, will return to it's rest position penetrating the locking tab and locking the control.

A latch arrangement for a sliding wing has a latching member that is movable by magnetic force from first position in which it is at least partially retracted within a latch housing, to a second position in which it extends at least partially out of the housing, to be received in a strike. The strike comprises a magnet or ferromagnetic arrangement to attract the latching member into a receiving and engaging formation of the strike when the sliding wing is located at or adjacent the strike.

Disclosed is a self-latching gate latch device. The device comprises a latch and a magnet assembly housing. The latch assembly housing, secured to a hinged gate, comprises a slidable horizontal latch bar, attractable by a magnet. The magnet assembly housing comprises a slidable vertical magnet bar secured with a magnet at the bottom thereof. In a lock position of the magnet bar, the latch bar engages the magnet. The magnet assembly housing further comprises a locking member that, in an engagement position, engages the magnet bar to the magnet assembly housing preventing the magnet bar from any upward movement. Within the magnet bar is disposed a lock bar, which when depressed, frees the magnet bar.

A lock is provided, including: a housing; a latch member, movably mounted to the housing and including a first blocking portion; a blocking member, movably mounted to the housing and including a second blocking portion; a locking member, operably mounted to the housing; wherein when the locking member is in a locking state and the latch member is in a first position, the locking member and the blocking member are free of blocking from each other so that the first blocking portion and the second blocking portion are blocked with each other, and the latch member is unmovable toward a second position; when the locking member is in a unlocked state, the second blocking portion and the first blocking portion are unblocked with each other and the latch member is movable to the second position so that the latch member is retractable from a locked object.

A screwless strike assembly for a lock includes a box body provided with side wall elements that bound a cavity that is suitable for receiving a latch or a bolt of the lock. The box body is suitable for being positioned in a housing seat of a frame of a door or another support element. The assembly includes a front plate, provided with a passage opening for the latch or bolt, and formed according to the geometrical shape of the box body. The assembly is provided with elements for fixing in the housing seat. The fixing elements include one or more locking arms integrally obtained on, and protruding from the rear of front plate, and elastically yieldable from a rest configuration to a spreadable fixing configuration in which they engage a bounding surface of the housing seat. The box body includes one or more pushing surfaces configured for spreading and pressing one or more locking arms against the bounding surface to achieve the spreading fixing configuration.

A security device for a door in a doorway. The device includes a floor-carriable portion and a door-carriable portion magnetically co-operable with the floor-carriable portion to stop the door opening past a communication position at which the door is positioned to guard the doorway and ajar to enable the communication via the doorway. At least one of the floor-carriable portion and the door-carriable portion is reconfigurable to allow the door to open past the communication position.

A magnetic latch for fastening a closure member to a support. The magnetic latch comprises a keeper assembly including a magnet and a latch bolt assembly having: an elongated frame (32); a latch bolt (14) moveable between a latching position and a retracted position; a latch bolt biasing member urging the latch bolt into its retracted position; and a latch bolt operating mechanism configured to move the latch bolt from its latching position to its retracted position against a magnetic attraction. The latch bolt operating mechanism comprises: an effort link rod (37); a load link rod (34); and a second-order lever (35) interposed between the effort link rod and the load link rod. The second-order lever reduces the force required to operate the latch bolt operating mechanism thus allowing for an increased magnetic attraction of the latch bolt towards the magnet in the keeper assembly.

A magnetic safety gate latch assembly and method of operation. The assembly includes: a pool latch tube, a user-actuated lid coupled to the top end of the pool latch tube; a rotatable shaft within the pool latch tube, an upper end of the shaft rigidly coupled to the lid, and a lower end of the shaft including a shaped base. The assembly further includes a magnet housing that at least partially encloses the shaped base and includes an aperture to cooperatively engage with the shaped base. The assembly further includes a bottom cover coupled to the lower end of the pool latch tube and enclosing the magnet housing, the bottom cover including an aperture facing a latch pin housing, the aperture positioned to expose a magnet. The assembly further includes a ferromagnetic latch pin and housing, and a magnetic latch pin guide slidably enclosing the latch pin.

An air guiding arrangement is integrated into a rear underbody of a motor vehicle that is driven by an internal combustion engine. The air guiding arrangement includes a final silencer (1) in an exhaust system (3.1, 3.2, 3.3, 3.4, 4.1, 4.2). The final silencer (1) has an underside that faces an underlying surface on which the vehicle is supported. The underside of the final silencer (1) is shaped in an aerodynamic fashion with at least one duct (6) that runs essentially in the direction of travel (X). The duct (6) has an inverted U shape or inverted V-shape that is open in the underside of final silencer (1). Air deflector elements (7, 8, 9) may partly cover the air duct (6) for guiding the air flow.