Patents by Inventor Robert Holik

Robert Holik 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).

  • Quick release folding propeller blades for a model aircraft
    Patent number: 10689103
    Abstract: A quick release propeller for model airplanes is disclosed including two or more blades mounted to a hub. For each blade, the hub includes a slot and a shoulder. Each blade includes a base portion having pins which slide into the slot in the hub. The slots are curved which prevents the blades from being removed unless they are rotated at predefined threshold angle with respect to the hub.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: June 23, 2020
    Assignee: Landing Products, Inc.
    Inventor: Robert Holik
  • QUICK RELEASE FOLDING PROPELLER BLADES FOR A MODEL AIRCRAFT
    Publication number: 20190359317
    Abstract: A quick release propeller for model airplanes is disclosed including two or more blades mounted to a hub. For each blade, the hub includes a slot and a shoulder. Each blade includes a base portion having pins which slide into the slot in the hub. The slots are curved which prevents the blades from being removed unless they are rotated at predefined threshold angle with respect to the hub.
    Type: Application
    Filed: May 22, 2018
    Publication date: November 28, 2019
    Applicant: Landing Products, Inc.
    Inventor: Robert Holik