Abstract:
Provided are door systems having a plurality of door panels and a frame, the door panels being movable between an extended position closing an opening in a building structure, and a folded retracted position. When in the extended position, the door panels interlock with each other forming a barrier to wind, dirt, dust and insects. The frame is movably attached to the building structure and when the door panels are in the extended position, the frame moves and engages the door panels with a sealing member to provide an airtight seal of the opening in the building structure.
Abstract:
A magneto-cryogenic valve (100), comprising:a connector (150) for connecting the magneto-cryogenic valve to a conduit through which a fluid flows; a heat transfer system (130); a first injector device (110) for injecting magnetically susceptible particles into the fluid; a valve chamber; and a magnetic field generating device (140), wherein:the valve chamber is connectable in fluid communication with the conduit so that the fluid of the conduit flows through the valve chamber; the magnetic field generating device produces a magnetic field comprising field lines and at least a portion of the field lines penetrate through the fluid in the valve chamber and interact with the injected magnetically susceptible particles; and the heat transfer system removes thermal energy from the valve chamber and the fluid therein.