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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.:

US 11781521 B1

PDFFull Text
Date of Patent:
Oct. 10, 2023

Filed:

Feb. 26, 2021

Toroidal lift force engine

Applicant:

Orville J. Birkestrand, Davenport, IA (US);

Inventor:

Orville J. Birkestrand, Davenport, IA (US);

Assignee:
Attorney:

Cesari and McKenna, LLP

Primary Examiner:

Brian O Peters

Int. Cl.
CPC ...
F03D 1/02 (2006.01); F03B 3/04 (2006.01); F01D 13/00 (2006.01); F01D 5/02 (2006.01); F01D 13/02 (2006.01); F03D 13/10 (2016.01); F03D 1/06 (2006.01); F03D 7/02 (2006.01); F03B 3/18 (2006.01); F03B 3/12 (2006.01); F03D 3/02 (2006.01); F03B 3/02 (2006.01);
U.S. Cl.
CPC ...
F03D 1/02 (2013.01); F01D 5/021 (2013.01); F01D 13/00 (2013.01); F01D 13/003 (2013.01); F01D 13/006 (2013.01); F01D 13/02 (2013.01); F03B 3/02 (2013.01); F03B 3/04 (2013.01); F03B 3/12 (2013.01); F03B 3/18 (2013.01); F03D 1/0633 (2013.01); F03D 3/02 (2013.01); F03D 7/0276 (2013.01); F03D 13/10 (2016.05);
Abstract

A toroidal lift force engine is provided. Illustratively, the toroidal lift force engine operates in an enclosed environment without heat and/or expelling particles of any kind, utilizing asymmetric pressure distribution on lift turbine blades solely to generate thrust with the normal component of this lift force, while using the tangential component of this lift force to drive accessories, provide control to the fluid velocity, and/or provide motivation of the fluid's flow. The toroidal lift force engine may be utilized to generate thrust, heat and/or electricity for powering vehicles, homes, etc.

Find Patent Forward Citations

Birkestrand, Orville. (2023). Toroidal lift force engine (U.S. Patent No. 11781521). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11781521

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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