Other

United Technologies Corporation

Sundstrand Corporation

Hands Free Enterprises, LLC

Gregory G Johnson

Loc Quang Duong

Xiaolan Hu

Henry R Vanderzyden

Jesus A Garcia

Benjamin E Fishler

Gao Yang

Dan G Sapiro

Ralph E Gordon

Steven R Falconer

Ulrike Kaul

Arthur J Tombers

A shoelace tightening system for singlehanded tightening of a shoelace on a shoe. The shoelace tightening system includes a shoelace, a pull tab and a fastening system. The shoelace is threaded through eyelets on both sides of the shoe's throat, with a pull tab slidably secured to a continuous free length of shoelace extending between the exit eyelets. The pull tab is operable for pulling the shoelace taut with a single hand, and fastenable to the shoe upper at a location that keeps the shoelace taut.

Shoelace tightening system

A reduction in excitation amplitudes affecting turbine blade durability in a turbine nozzle assembly having a plurality of vanes and turbine blades, includes: identifying a turbine blade design of the turbine nozzle assembly; performing a modal model analysis of at least one of the turbine blades in the turbine blade design; reducing aerodynamic impact by ensuring that each of the turbine blades is free of aero-excitation from an upstream flow at the vanes in an operating speed range; identifying blade natural frequencies with respect to the nozzle vanes; and modifying a trailing edge of at least one of the vanes to reduce the excitation amplitudes.

Reduction of equally spaced turbine nozzle vane excitation

Inoperability due to solenoid freeze-up, electrical malfunction or human error in a mechanical disconnect system for disconnecting first and second shafts includes a disconnect plunger, a first spring for urging the disconnect plunger toward the first shaft whereby the disconnect plunger causes the first shaft to disengage the second shaft when the disconnect plunger is in contact with the first shaft, a solenoid having an armature and windings and a solenoid plunger coupled to the solenoid armature. A second spring urges the solenoid plunger into engagement with the disconnect plunger to thereby prevent movement of the disconnect plunger into engagement with the first shaft. The solenoid windings are controllably energized to move the solenoid armature such that the solenoid plunger is retracted from the disconnect plunger. An expandable material is disposed in a confined volume of space between the disconnect plunger and the solenoid whereby the expandable material expands when heated to a certain temperature to in turn move the solenoid plunger, solenoid armature and solenoid windings away from the disconnect plunger and thereby cause the disconnect plunger to contact the first shaft under the influence of the first spring.

Thermal disconnect

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San Diego, CA, United States of America

Gregory G Johnson