Patents by Inventor Evan Sobel

Evan Sobel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Rotary wing aircraft pitch beam attachment with anti-rotation plate design
    Patent number: 9441495
    Abstract: A retaining assembly for a tail rotor system is provided including a washer having a plurality of splines. The washer is configured to couple to an adjacent pitch change shaft. A retaining nut includes a self-locking feature and a flange arranged at a first end. The retaining nut is configured to threadably couple to the pitch change shaft such that the flange is in contact with the washer. The flange includes a plurality of first holes configured to at least partially align between the splines of the washer. A lock plate includes a body and a plurality of tabs extending generally perpendicularly from the body. The lock plate is slidably positioned about the pitch change shaft adjacent the flange. The lock plate is operably coupled to the retaining nut and the washer to limit rotational movement thereof relative to the pitch change shaft.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: September 13, 2016
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: David N. Schmaling, Richard Thomas Hood, Evan Sobel
  • ROTARY WING AIRCRAFT PITCH BEAM ATTACHMENT WITH ANTI-ROTATION PLATE DESIGN
    Publication number: 20140241884
    Abstract: A retaining assembly for a tail rotor system is provided including a washer having a plurality of splines. The washer is configured to couple to an adjacent pitch change shaft. A retaining nut includes a self-locking feature and a flange arranged at a first end. The retaining nut is configured to threadably couple to the pitch change shaft such that the flange is in contact with the washer. The flange includes a plurality of first holes configured to at least partially align between the splines of the washer. A lock plate includes a body and a plurality of tabs extending generally perpendicularly from the body. The lock plate is slidably positioned about the pitch change shaft adjacent the flange. The lock plate is operably coupled to the retaining nut and the washer to limit rotational movement thereof relative to the pitch change shaft.
    Type: Application
    Filed: February 27, 2013
    Publication date: August 28, 2014
    Applicant: SIKORSKY AIRCRAFT CORPORATION
    Inventors: David N. Schmaling, Richard Thomas Hood, Evan Sobel