Fenestration lock assemblies, fenestration units including the lock assemblies, and methods of assembling the lock assemblies. The lock assemblies use a cam and follower design that transfers rotary motion to a lock bolt that moves in translation between an extended/locked state and a retracted/unlocked state.

An automated sash lock for locking a window sash comprises a linearly depressible trigger, a cam-style locking element normally biased towards a locked position, a rotatable detent actuated by the trigger, a pivotable transfer element between the detent and the locking element, and an actuator for manually operating the lock mechanism to unlock the lock when the window is in a closed and locked position. The detent is normally biased in the direction of the locking element and a portion of the detent engages a body portion of the locking element to maintain the locking element in a retracted position when the window is open. Upon actuation of the trigger by a closing window, the trigger translates linearly into the lock housing and rotates the detent into the disengaged position, pulling the detent away from the locking element and allowing the locking element to fire out of the lock housing and into an opening in a strike in the adjacent sash to prevent the sashes from relative sliding movement.

A forced-entry resistant sash lock includes a housing, a shaft pivotally mounted to the housing, a cam mounted on the shaft using an elongated opening permitting selective rotational and translational movements, and a separation member secured to the shaft. In the unlocked position, upon shaft rotation in a first direction a cam surface on the separation member engages a follower surface on the cam causing co-rotation of the cam into a non-forced entry-resistant locked position, and upon continued rotation the cam surface moves relative to the follower surface causing cam translation into a forced-entry-resistant locked position through movement of the shaft within the elongated opening, until an engagement surface of the separation member engages a contact surface of the cam, preventing forced reverse cam translation. The cam translation causes a cam stop surface to engage a housing stop surface preventing forced cam counter-rotation.

A system for locking a position of an operable sash in a window frame has a motor, a rotating element connected to the motor, and a sweep cam. The sweep cam is configured to rotatably engage a keeper disposed on a sash disposed opposite the operable sash. A spur gear operatively connects the rotating element to the sweep cam.

A vent stop includes: a housing; a tumbler; a biasing member having a first portion secured to the tumbler and a second portion in movable contact with a housing track, to selectively bias the tumbler. Movement of the second portion along the track is coordinated with sequential pivoting of the tumbler between extended, retracted, partially extended, and intermediate positions. In the extended position, a tumbler bearing surface limits opening of the sash member. When toggled from the extended position to the retracted position and subsequently released, outward bias of the tumbler is limited to the partially extended position by contact of the second portion with a track recess. Subsequent contact of the sash member with the deflection surface causes pivoting from the partially extended to the intermediate position, permitting unrestricted sash member opening, release of the second portion from the contact point, and biasing back toward the extended position.

A tamper-resistant sash window lock includes a housing, a shaft, a cam, and a lever member. An interior surface of the housing wall that defines a cavity. A portion of the interior surface of the housing wall is curved about a hole in the housing, with a distal end of the wall portion formed into a lock surface. The shaft is rotatably mounted in the hole, and a hub of the cam is rotatably mounted on the shaft. The cam has a cantilevered arm with a lock surface and an engagement surface. The lever member is fixedly secured to the shaft, for a first side thereof to engage and drive the cam hub in a first rotational direction into a lock position when the shaft is actuated in the first rotational direction, so the lock surface of the cantilevered arm engages the lock surface of the housing preventing forced entry.

A lock assembly comprises a driving member, a drive assembly, and an engaging member. The drive assembly comprises a drive connector operatively connected to the driving member, a lead screw operatively connected to the drive connector, a carriage configured and arranged to move along the lead screw, and an elongate member operatively connected to the carriage. The driving member is configured and arranged to rotate the drive connector, and the drive connector is configured and arranged to rotate the lead screw. Rotation of the lead screw moves the carriage along the lead screw and the elongate member moves with the carriage between locked and unlocked positions. The engaging member is configured and arranged to selectively engage the elongate member in the locked position.

An aircraft is equipped with an auxiliary access control barrier (AACB) to prevent access to an area of the aircraft. The AACB includes laterally extendable door panels that are slidably attached to each other to vary a width of the AACB, a hinge by which the door panels are pivotably attached to the aircraft, such that the door panels are pivotable between a deployed position, in which the door panels are positioned across the opening to prevent passage through the opening and in which the AACB has a first width, and a stowed position, in which the door panels are positioned to allow passage through the opening and in which the AACB has a second width, and one or more locks to prevent relative motion between the door panels to fix the width of the AACB and/or to secure the AACB within the opening in the bulkhead.

A window security device includes a pull handle, the pull handle defining a tongue slot extending through the pull handle from a top paddle surface to a bottom paddle surface; and a locking bar slidably attached to the pull handle, a locking bar body of the locking bar positioned adjacent to the bottom paddle surface, a tongue of the locking bar extending through the tongue slot.

An aircraft is equipped with an auxiliary access control barrier (AACB) to prevent access to an area of the aircraft. The AACB includes laterally extendable door panels that are slidably attached to each other to vary a width of the AACB, a hinge by which the door panels are pivotably attached to the aircraft, such that the door panels are pivotable between a deployed position, in which the door panels are positioned across the opening to prevent passage through the opening and in which the AACB has a first width, and a stowed position, in which the door panels are positioned to allow passage through the opening and in which the AACB has a second width, and one or more locks to prevent relative motion between the door panels to fix the width of the AACB and/or to secure the AACB within the opening in the bulkhead.