An escape hatch stay system for an aircraft and methods of using the escape hatch stay system. An escape hatch stay system includes a first stop arm, a second stop arm, and a gas strut. The first stop arm is rotatably coupled to the second stop arm, and the second stop arm is pivotably coupled to the gas strut. The first and second stop arms are lockable to preclude relative movement therebetween to lock the escape hatch in an open position. When the escape hatch is in the open position, the escape hatch may not be closed shut without manual intervention. When the escape hatch is in the open position, a load applicable to push the escape hatch open past the open position is damped by the gas strut.

A device may limit opening of a sash hingedly coupled to a master frame, and includes: a bracket attached to the sash; a first arm having a first end pivotally coupled to the bracket; a second arm having a first end pivotally coupled to the first arm's second end; means for biasing the second arm into a retracted position; and a release assembly. The release assembly is secured to the master frame and includes a hook pivotable between a first position and a second position, which, in the first position, may be releasably received in an opening in the second end of the second arm when the second arm is in the retracted position, as the sash is closed and received within the master window frame The second arm is disengaged from the hook, permitting full opening of the sash, when the hook is pivoted into the second position.

An emergency exit arrangement for a vehicle and or a building comprising of a plurality of spring pressured stud assembly having a plurality of locking pin in the upper region connected correspondingly to a plurality of rope which is connected to a first pulling device; a plurality of locking pin in the lower region connected correspondingly to a plurality of rope which is connected to a second pulling device. Sequential pulling of the first and the second pulling device ejects out the aperture cover. The pulling devices are electrical, operated by pressing a button; or through temperature sensor, impact sensor, pressure sensor, smoke sensor and or a combination thereof. The pulling devices are alternatively rotatable knobs. The aperture cover is easily mountable.

A security window applied to a single window is applied to a previously installed single window so as to block an open space of the window and prevent entry by strangers and a person inside from having a falling accident. The security window can be separated from within a room as necessary, and thus movement of an object or emergency escape is facilitated. Meanwhile, the security window cannot be separated from outside the room, and thus intrusion by persons with malicious intent can be prevented from the onset.

A deployable safety ladder is retained within a housing having a removable safety pin which when removed causes the deployable ladder and safety pin to separate via a pair of springs. The device further comprises a pivotable grab bar. Use of the grab bar activates a strobe light and audible alarm. The strobe light and audible alarm are each powered by a rechargeable solar powered battery. A fireproof blanket is removably secured within the housing.