Lockheed Martin Corporation

Tactair Fluid Controls, Inc.

Michael Rex Obleman, Jr

Jeffrey Christopher Swanson

Charles Joseph Fairbanks

An overpressure indicator is defined by a housing sized and configured for attachment within a compartment interior, such as an aircraft nacelle. A pressure sensing element disposed within the housing is coupled to an indicator element and is configured to detect a pressure differential between the interior and exterior of the compartment. The indicator element is caused to move in response to a predetermined change in pressure exceeding a threshold pressure differential. The indicator element includes a distal end that is moved to a position exterior of the housing and the compartment, providing a visual indication of an overpressure condition. A reset feature provided on the indicator can only be accessed by first opening the compartment in which the indicator has been mounted. A spring can be provided to assist in the triggering of the indicator member after the threshold pressure differential has been detected.

Resettable overpressure indicator for aircraft

An electrical grounding strip has a first link and a second link, wherein the second link is connected directly to the first link, and each of the first and second links has a portion lying substantially in a plane and has at least one electrically conductive spike attached to the portion. The spike projects generally orthogonally to the plane of the link portion. An electrically conductive ground strap is in electrically conductive contact with the spikes of each of the first and second links.

Growing community of inventors

Cicero, NY, United States of America

Michael Rex Obleman, Jr