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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 11111788 B1

PDFFull Text
Date of Patent:
Sep. 07, 2021

Filed:

Nov. 13, 2018

Positive displacement rotary devices

Applicant:

Mallen Research Limited Partnership, Charlottesville, VA (US);

Inventors:

David Alton McDaniel, Jr., Charlottesville, VA (US);

James W. Newman, Jr., Charlottesville, VA (US);

Assignee:

MALLEN RESEARCH LIMITED PARTNERSHIP, Charlottesville, VA (US);

Attorney:

Baker Botts L.L.P.

Primary Examiner:

Theresa Trieu

Int. Cl.
CPC ...
F03C 2/00 (2006.01); F03C 4/00 (2006.01); F04C 2/00 (2006.01); F01C 1/12 (2006.01); F01C 21/08 (2006.01); F04C 27/00 (2006.01); F01C 1/20 (2006.01); F01C 19/02 (2006.01);
U.S. Cl.
CPC ...
F01C 1/123 (2013.01); F01C 1/20 (2013.01); F01C 19/025 (2013.01); F01C 21/08 (2013.01); F04C 27/001 (2013.01); F01C 19/02 (2013.01); F04C 2230/60 (2013.01); F04C 2250/20 (2013.01); F05B 2230/60 (2013.01); H05K 999/99 (2013.01); Y10T 29/49229 (2015.01); Y10T 29/49336 (2015.01);
Abstract

A first rotor configured to rotate adjacent to a second rotor is disclosed. The second rotor includes a circular main body with a first axis of rotation and a vane extending radially from the main body. The first rotor includes a first curved surface that corresponds to a curve swept at a constant radius about a second axis of rotation, a second curved surface that corresponds to a curve swept by a leading edge of the vane when the second rotor is simultaneously rotated about the first axis of rotation and the second axis of rotation, a third curved surface that corresponds to a curve swept by a trailing edge of the vane when the second rotor is simultaneously rotated about the first axis of rotation and the second axis of rotation, and a vane-receiving groove disposed between the second curved surface and the third curved surface.

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