Lightning strike protection for an aircraft windshield wiper system
AssigneeRosemount Aerospace Inc.
InventorsRobin Jacob, Aruna Kumar Huluvangala Krishnappa, Guru Prasad Mahapatra
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Abstract
An aircraft windshield wiper system includes a wiper arm, a wiper blade coupled to a distal end of the wiper arm, and a drive shaft coupled to a proximal end of the wiper arm. The wiper blade is configured to clean water, dirt, and other debris from the windshield of the aircraft. The drive shaft is configured to rotate and cause the wiper arm with the coupled wiper blade to sweep across the windshield. The wiper arm includes both composite and metal components to reduce the weight of the windshield wiper system while also providing lightning strike protection.
Claims20
A windshield wiper system for use on a windshield of an aircraft, the windshield wiper system comprising:
- a wiper arm comprising:
- a composite shaft with a metal layer adjacent to and surrounding an outer layer of the composite shaft and extending between a proximal end and a distal end of the composite shaft;
- a metallic channel coupled to the proximal end of the composite shaft and electrically connected to the metal layer;
- and
- a metallic shaft coupled to the distal end of the composite shaft and electrically connected to the metal layer;
- and
- a wiper blade including a wiper blade coupling attached to the metallic shaft of the wiper arm.
Dependencies are inferred from the claim text.