The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 18, 2023
Filed:
Aug. 17, 2022
Applicant:
Textron Innovations Inc., Providence, RI (US);
Inventors:
John Robert Wittmaak, Newark, TX (US);
Alan Hisashi Steinert, Fort Worth, TX (US);
Assignee:
Textron Innovations Inc., Providence, RI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64C 11/30 (2006.01); F04D 29/36 (2006.01); B64C 11/06 (2006.01); B64C 11/44 (2006.01); B64C 11/34 (2006.01);
U.S. Cl.
CPC ...
B64C 11/44 (2013.01); B64C 11/06 (2013.01); B64C 11/34 (2013.01); F04D 29/362 (2013.01);
Abstract
A blade-pitch change mechanism includes a motor comprising a rotating motor shaft and a housing, a solenoid coupled to a first end of the rotating motor shaft and to the housing, and a hub coupled with a second end of the rotating motor shaft. The hub includes a cylindrical puck having formed therein a gated castellated groove and connected to the second end of the rotating motor shaft and a cylindrical blade-pitch hub selectively couplable with the cylindrical puck via a plurality of drive pins and having formed therein a blade-pitch adjustment groove.