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US 5,334,090 AGranted
Integrated cabin pressure controller
AssigneeAlliedSignal Inc.
InventorJohn F. Rix
Life of this patent
Estimating the term…
Abstract
A cabin pressure controller includes primary and backup controllers, a selector and a display mounted onto or within a single housing. The primary and backup controllers communicate through a communication link, jumpered across an external connector. Such a link allows for electrical isolation between the controllers.
Claims20
Apparatus for generating cabin pressure commands, comprising:
- a housing
- primary controller means, mounted within said housing, for generating said commands according to at least one parameter;
- backup controller means, mounted within said housing, for selectively generating said commands instead of said primary controller means;
- selector means, mounted on a visible surface of said housing, for allowing said at least one parameter to be set;
- and
- display means, mounted on a visible surface of said housing, for selectively displaying said at least one parameter.
3 more elements
Apparatus for generating cabin pressure commands, comprising:
- a housing
- a primary digital controller, mounted within said housing, for generating said commands according to at least one parameter;
- a backup digital controller, mounted within said housing, for selectively generating said commands instead of said primary controller means;
- connection means, located outside of said housing, for electrically connecting said primary digital controller to said backup digital controller, whereby said primary digital controller is electrically isolated from said backup digital controller.
- selector means, mounted on a visible surface of said housing, for allowing said at least one parameter to be set;
- display means, mounted on a visible surface of said housing, for selectively displaying said at least one parameter;
- and
- at least one power supply means for supplying electrical power, each said power supply means providing said power to a corresponding one digital controller.
5 more elements
Dependencies are inferred from the claim text.