A system for monitoring a pressure change within at least one compartment of an aircraft and operating a pyrotechnic device associated with a door latch, includes a securing mechanism arranged in an aircraft door that includes a pyrotechnic actuator and a latch bolt. The system includes the pyrotechnic actuator configured to move the latch bolt when the pyrotechnic actuator is actuated. The system also includes a pressure sensor configured to provide a pressure signal. The system also includes a controller configured to determine a pressure drop representing a decompression event. The system also includes an output driver configured to generate an output signal to actuate the pyrotechnic actuator when the controller determines the occurrence of a decompression event.

A diaphragm latch may comprise a housing, a diaphragm disposed in the housing, a pin coupled to the diaphragm, an opening in the housing, and a pin aperture disposed in the first side, wherein the pin extends from the pin aperture. The diaphragm may be configured to move in response to a pressure being communicated through the opening, and the pin may be configured to at least one of extend or retract from the pin aperture in response to the diaphragm moving. The diaphragm latch may passively couple an inner fixed structure (IFS) to an intermediate case (IMC) during an overpressure event.

A locking mechanism comprises an S-shaped locking member which comprises respective locking hooks arranged at the end of opposed arms of the locking member. A pivot is arranged between the arms of the locking member. The locking member rotates around the axis (A) of the pivot. The locking mechanism further comprises a coupling for coupling the locking member to an actuator for rotating the locking member around the pivot axis (A). The coupling comprises at least one coupling element, an actuator coupling for coupling the at least one coupling element to the actuator and first and second drive couplings for coupling the at least one coupling element independently to each arm of the locking member for transmitting rotational movement thereto, such that failure of one arm of the locking member will not cause loss of drive to the other arm of the locking member.

A locking mechanism comprises an S-shaped locking member which comprises respective locking hooks arranged at the end of opposed arms of the locking member. A pivot is arranged between the arms of the locking member. The locking member rotates around the axis (A) of the pivot. The locking mechanism further comprises a coupling for coupling the locking member to an actuator for rotating the locking member around the pivot axis (A). The coupling comprises at least one coupling element, an actuator coupling for coupling the at least one coupling element to the actuator and first and second drive couplings for coupling the at least one coupling element independently to each arm of the locking member for transmitting rotational movement thereto, such that failure of one arm of the locking member will not cause loss of drive to the other arm of the locking member.

A time-delay latch for securing a structure in a specified position includes a housing, a fluid chamber contained within the housing for holding fluid, a pin that extends through the fluid chamber and is axially movable within and through the fluid chamber, and a release frame movably secured within the housing. When the pin is in a latched position, the release frame engages with the pin to prevent axial movement of the pin. When the pin is in an unlatched position, the release frame disengages from the pin to allow axial movement of the pin. The axial movement of the pin between the latched position and the unlatched position requires a prescribed duration of time to elapse. During operation, the axial movement of the pin between the unlatched position and the latched position can occur faster than the prescribed duration of time.

A time-delay latch for securing a structure in a specified position includes a housing, a fluid chamber contained within the housing for holding fluid, a pin that extends through the fluid chamber and is axially movable within and through the fluid chamber, and a release frame movably secured within the housing. When the pin is in a latched position, the release frame engages with the pin to prevent axial movement of the pin. When the pin is in an unlatched position, the release frame disengages from the pin to allow axial movement of the pin. The axial movement of the pin between the latched position and the unlatched position requires a prescribed duration of time to elapse. During operation, the axial movement of the pin between the unlatched position and the latched position can occur faster than the prescribed duration of time.

One example embodiment is an armored vehicle door quick-release mechanism includes a handle, a slide lock latch, and an actuator mechanism. The handle is coupled to the slide lock latch. The movement of the handle in a first direction causes the slide lock latch to move in a first direction to a first position so that the slide lock latch is adapted to attach the vehicle door to the actuator mechanism adapted to open and close the vehicle door. A movement of the handle in a second direction causes that slide lock latch to move in a second direction to a second position to detach the vehicle door from the actuator mechanism.

One example embodiment is an armored vehicle door quick-release mechanism includes a handle, a slide lock latch, and an actuator mechanism. The handle is coupled to the slide lock latch. The movement of the handle in a first direction causes the slide lock latch to move in a first direction to a first position so that the slide lock latch is adapted to attach the vehicle door to the actuator mechanism adapted to open and close the vehicle door. A movement of the handle in a second direction causes that slide lock latch to move in a second direction to a second position to detach the vehicle door from the actuator mechanism.

A fluid-driven hatch for a bulk material container includes a cover is opened by a fluid-driven cover actuator and secured by a fluid-driven lock actuator. A fluid conduit connects both the fluid-driven cover actuator and the fluid-driven lock actuator to a pressurized fluid source. Pressurized fluid is selectively supplied to the fluid conduit such that the fluid-driven lock actuator is actuated at a first pressure to unlock the cover, and the fluid-driven cover actuator is actuated moments later at a second, higher pressure to open the cover.

A fluid-driven hatch for a bulk material container includes a cover is opened by a fluid-driven cover actuator and secured by a fluid-driven lock actuator. A fluid conduit connects both the fluid-driven cover actuator and the fluid-driven lock actuator to a pressurized fluid source. Pressurized fluid is selectively supplied to the fluid conduit such that the fluid-driven lock actuator is actuated at a first pressure to unlock the cover, and the fluid-driven cover actuator is actuated moments later at a second, higher pressure to open the cover.