Sikorsky Aircraft Corporation

Delavan Inc.

Sikorsky Aricraft Corporation

John D Cannata

Ulf J Jonsson

Brian Ernest Wake

Claude G Matalanis

Lev Alexander Prociw

Haralambos Cordatos

Charles E Reuter

Angelo Martucci

Scott J Beloncik

According to one aspect, a lubricant level sensing system for an actuator is provided. The lubricant level sensing system includes a pressure port in an outer housing of the actuator, a pressure sensor, and a pathway from the pressure port to the pressure sensor. The pathway establishes fluid communication between the pressure sensor and a free volume of an internal cavity of the outer housing relative to a lubricant level in the internal cavity such that the pressure sensor detects a pressure of the free volume used to derive the lubricant level.

Lubricant level sensing for an actuator

A filter screen includes a plate body with an upstream surface, an opposed downstream surface, and an array of apertures extending between the upstream surface and the downstream surface. A polytetrafluoroethylene-based layer overlays the upstream surface between apertures of the aperture array, the polytetrafluorethylene-based layer being conformally disposed over the upstream surface of the plate body and spanning the upstream surface between the apertures of the aperture array to slow deposition of carbonaceous deposits on the filter screen.

Filter screens and methods of making filter screens

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Marlborough, CT, United States of America

John D Cannata