Universal gyroscopic precession indicator

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Description

FIG. 1 is a top front perspective view of a universal gyroscopic precession indicator attached to a model airplane in accordance with the claimed design;

FIG. 2 is a top front perspective view of the design of FIG. 1;

FIG. 3 is a front elevation view of the design of FIG. 1, including indicators illustrating a counter-clockwise propeller rotation (e.g., typical of a British or Russian built aircraft);

FIG. 4 is a rear elevation view of the design of FIG. 1, including indicators illustrating a clockwise propeller rotation (e.g., typical of an American built aircraft);

FIG. 5 is a side elevation view of the design of FIG. 1 (e.g., as shown in a typical handheld configuration) including a disclaimed eye bolt extending through and normal to the universal gyroscopic precession indicator; and,

FIG. 6 is a top front perspective view of the design of FIG. 5 (e.g., as shown in a typical handheld configuration).

The side elevation view shown in FIG. 5 is representative of all sides (e.g., left side, right side, top plan, and bottom plan) of the claimed design.

The dash-dash broken lines in the figures represent unclaimed subject matter and form no part of the claimed design.

Claims

The ornamental design for a universal gyroscopic precession indicator, as shown and described.

Referenced Cited
U.S. Patent Documents
1934464 November 1933 Helper
Other references
  • Definition, “Gyroscopic Effect”, Quora online search engine, 1 page. No date known, believed to be available as early as Jun. 6, 2022.
  • Cutler, “Left-Turning Tendencies Explained: Why Your Plane Pulls Left During Takeoff”, Sep. 14, 2021, Boldmethod LLC, Boulder, Colorado, 11 pages. Available online at https://www.boldmethod.com/learn-to-fly/aerodynamics/why-you-need-right-rudder-on-takeoff-to-stay-on-the-centerline-ground-roll/#:˜:text=During%20takeoff%2C%20air%20accelerated%20behind,making%20the%20aircraft%20yaw%20left. Obtained from the internet Jun. 17, 2022.
  • Machado, “Rod Machado's Private Pilot Handbook: The Ultimate Pilot Book”, Jan. 1, 1997, Aviation Speaker's Bureau, San Clemente, California, Cover, pp. E29, E30, and E36.
  • Twombly, “Technique—Left Turning Tendencies”, Oct. 5, 2014, Flight Training, AOPA (Aircraft Owners and Pilots Association), Frederick, Maryland, 3 pages. Available online at https://www.aopa.org/news-and-media/all-news/2014/october/flight-training-magazine/technique—left-turning-tendencies. Retrieved from the internet Jun. 17, 2022.
Patent History
Patent number: D977568
Type: Grant
Filed: Jun 23, 2022
Date of Patent: Feb 7, 2023
Inventor: J. T. Rethke (Monterey, CA)
Primary Examiner: Antoine Duval Davis
Application Number: 29/843,779
Classifications
Current U.S. Class: Vehicle Trainer (D19/63)