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.

Date of Patent:
Dec. 11, 2007

Filed:

Feb. 20, 2004
Applicants:

John P. Franz, Houston, TX (US);

David L. Vaughn, Spring, TX (US);

Steven D. Webster, Spring, TX (US);

Inventors:

John P. Franz, Houston, TX (US);

David L. Vaughn, Spring, TX (US);

Steven D. Webster, Spring, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A rotary flow inducing device having a rotary flow inducing blade and a protection mechanism including a trigger to move the protection mechanism between an operational flow configuration and a protective no-flow configuration with respect to the rotary flow inducing blade.


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