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:
May. 26, 2020
Filed:
Mar. 23, 2018
Applicant:
The Boeing Company, Chicago, IL (US);
Inventors:
Allan J. Cameron, Fountain Valley, CA (US);
Robert D. Gregg, III, Mukilteo, WA (US);
James Long-Lerno, Anaheim, CA (US);
Assignee:
The Boeing Company, Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B63H 16/04 (2006.01); F15D 1/12 (2006.01); F15D 1/00 (2006.01);
U.S. Cl.
CPC ...
B63H 16/04 (2013.01); F15D 1/003 (2013.01); F15D 1/12 (2013.01);
Abstract
A rowing oar is described. The rowing oar can have a plurality of flow disrupters arranged on a shaft of the oar. In one embodiment, the flow disrupters can be circular bumps arranged in lines along the shaft of the oar. The flow disrupters can cause the air flow over the oar to be more turbulent so that the flow separation on a backside of the oar is reduced. The reduction in flow separation can reduce aerodynamic drag on the oar when it travels through the air. Thus, a rower can expend less energy during rowing using the oar.