METHODS OF EMERGENCY OPENING OF MANHOLES IN EMERGENCY SITUATIONS, DEVICES AND SYSTEMS FOR THEIR EMBODIMENT AND METHODS OF ASSEMBLING DEVICES FOR EMERGENCY OPENING OF MOVABLE ELEMENTS INSTALLED IN MANHOLES
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United States of America
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Issued Date -
Apr 22, 2021
app pub date -
Apr 30, 2019
filing date -
Apr 30, 2019
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Abstract
The subject matter of the invention are various methods, systems and devices and the ways of their installation/fitting/assembly of emergency opening of manholes (entry openings) or loading holes (door) in emergency situations, especially an emergency move/shift of movable components closing manholes (entry openings), exit openings, loading or unloading openings, from closed position into opened position, such as doors, manholes, hatches, gates, emergency exits, windows, window panes and other, especially in means of transport, construction furnishing devices and premises (buildings). The invention is connected with the use of pyrotechnic actuators which can be telescopic actuators, piston actuators or flexible ones, driven with propelling actuating agents which are in the form of gas generators, pressure of compressed gas or air, compressed air from a compressor or a material with shape memory.
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