United Technologies Corporation

Otis Elevator Company

Sikorsky Aircraft Corporation

Raytheon Technologies Corporation

Robert A Barth

Wayde R Schmidt

John E Holowczak

Aaron T Nardi

Xiaodong Luo

Paul Sheedy

Michael J Birnkrant

James Thompson Beals

Ying She

Tahany Ibrahim El-Wardany

Daryl J Marvin

Xia Tang

Enrico Manes

Michael A Klecka

Daniel V Viens

Weina Li

William K Tredway

Tania Bhatia

Shihemn Chen

Luke A Mishler

Neil R Baldwin

Rajesh S Kumar

Tahany Ibrahim El Wardany

Neil Baldwin

An illustrative example spring includes a curved shape body having a length. The body includes a cavity that extends along at least a majority of the length. The body has a cross-section across the length that is different at a plurality of locations on the body along the length.

Spring useful for elevator safety device

A reactor for continuously coating tow fibers has an outer tubular member, an inner support member spaced from the outer tubular member, a reactant flowing through a space defined by the outer tubular member and the inner support member, and at least one flow promotor located on an outer surface of the inner support member for directing the reactant towards an inner surface of the outer tubular member. A system and a method for coating tow fibers are also described.

Continuous tow fiber coating reactor

Components with improved erosion resistance are disclosed. A surface of the component or a substrate of the component is modified by coating the substrate with an elastomer layer. The elastomer layer is then modified by embedding hard particles onto an outer side of the elastomer layer. The hard particles exhibit higher fractured toughness providing enhanced erosion protection. The elastic properties of the elastomer experience little reduction because the surface embedded particles are located only at the outer side or outer surface of the elastomer layer. Therefore, the bond between the inner side of the elastomer layer and the substrate or component surface is not interfered with and the potential for electro-chemical corrosion and poor adhesion are not increased by the presence of the hard particles as the hard particles are located away from the inner face between the elastomer layer and the substrate.

Substrates coated with wear resistant layers and methods of applying wear resistant layers to same

Airfoil blades are disclosed having a coating thereon that includes a polyurethane, a polysiloxane, and a linking agent that promotes a connection between the polyurethane and the polysiloxane.

Erosion resistant blade and blade coating

A brake assembly and a method for manufacturing a brake assembly are provided. The brake assembly includes a brake pad affixed to a substrate. The brake pad extends from the substrate to a brake pad friction surface, and includes abradable cellular metal foam with the hardened ceramic particles.

Friction brake assembly with an abradable metal foam brake pad

An article with an erosion protection layer. The erosion protection layer may include metal, intermetallic compound, ceramic or glass nanocellular foam particles or monolithic sheets. The particles are dispersed in a polymeric matrix and the monolithic sheets are infiltrated with polymeric material. The nanocellular foam ligaments have submicron cross-sectional diameters.

Nanocellular and nanocellular particle filled polymer composite coating for erosion protection

A method for peening a surface of a material is disclosed. The method may include producing repeated, separated and high speed liquid drops and moving the liquid drops across the surface to be peened. The liquid drops are essentially free of air bubbles and the velocity of the liquid drops is at least 500 ft/sec. A peening apparatus to produce repeated, separated and high speed liquid drops is also disclosed. The apparatus may comprise a storage tank, a nozzle, a pump, an accumulator, a regulator and an actuator. The apparatus may control the volume and velocity of the produced liquid drops as well as the frequency of the liquid drop production.

Liquid drop peening method and apparatus therefor

A process for manufacturing an article includes the steps of applying a quantity of a refractory metal sufficient to produce a coating on a carbon based felt; processing thermally a refractory metal coated carbon based felt at a temperature and for a period of time sufficient to form a ceramic based felt; and cooling the ceramic based felt under a controlled atmosphere.

Silicon carbide ceramic containing materials, their methods of manufacture and articles comprising the same

An armor system includes a ceramic armor layer and a ceramic composite armor layer adjacent to the ceramic armor layer. The ceramic composite armor layer includes a ceramic matrix and unidirectionally oriented fibers disposed within the ceramic matrix.

Armor system having ceramic composite with improved architecture

Non-line-of-sight process for coating complexed shaped structures of Si-based substrates with protective barrier layers.

Growing community of inventors

South Windsor, CT, United States of America

Robert A Barth