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US 5,399,855 AGranted
Atmospheric exclusion system having an expandable shroud and a non-elastic bladder
AssigneeNorthrop Grumman Corporation
InventorsBruce S. Rouleau, Andrew J. Tuls
Life of this patent
Estimating the term…
Abstract
An automatic, isobaric, atmospheric exclusion system is disclosed to protect sensitive optical components onboard aircraft. A lightly sealed shroud is disposed around the optical component and connected to a non-elastic bladder by a flexible hose.
Claims12
An atmospheric exclusion system for protecting optical components during flight, comprising:
- a shroud lightly sealed around the optical components to be protected, said shroud including a viewing window for the optical components and a hose connection thereon;
- a non-elastic bladder having a hose connection;
- and
- a flexible hose connected at one end to the hose connection on said shroud and at the other end to the hose connection on said bladder, whereby when atmospheric pressure decreases, the air in said shroud expands and is directed to said bladder through said hose and when atmospheric pressure increases the air is returned to said shroud.
1 more element
An atmospheric exclusion system for protecting optical components during flight, comprising:
- a shroud lightly sealed around the optical components to be protected, said shroud including a viewing window for the optical components and a small opening therein;
- a dessicant filled cannister secured over said small opening in said shroud and including a hose connection;
- a non-elastic bladder having a hose connection;
- and
- a flexible hose connected at one end to the hose connection on said cannister and at the other end to the hose connection on said bladder, whereby when atmospheric pressure decreases, the air in said shroud expands and is directed to said bladder through said cannister and said hose and when atmospheric pressure increases the air is returned to said shroud.
2 more elements
An atmospheric exclusion system for protecting optical components during flight, comprising:
- a fiberglass and polyester resin shroud lightly sealed around the optical component to be protected, said shroud including a viewing window for the optical components and a small opening therein;
- a dessicant filled pancake cannister secured over said small opening in said shroud and including a hose connection on a lateral side thereof;
- a non-elastic polychloroltriflouralethylene laminated pleated bladder having a hose connection;
- and
- a flexible polytetrafluoroethylene hose connected at one end to the hose connection on the lateral side of said cannister and at the other end to the hose connection on said bladder, whereby when atmospheric pressure decreases, the air in said shroud expands and is directed to said bladder through said cannister and said hose and when atmospheric pressure increases the air is returned to said shroud.
2 more elements
Dependencies are inferred from the claim text.