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William J Vonfeldt

from Gaithersburg, MD
Age ~82

William Vonfeldt Phones & Addresses

  • 5 Hilton Ct, Gaithersburg, MD 20882 (301) 253-4203

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Position: Sales Occupations

Education

Degree: High school graduate or higher

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Us Patents

Paravane With Automatic Depth Control

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US Patent:
44637012, Aug 7, 1984
Filed:
Feb 28, 1980
Appl. No.:
6/125735
Inventors:
David M. Pickett - Clarksburg MD
Richard K. Knutson - Gaithersburg MD
William VonFeldt - Gaithersburg MD
Assignee:
The United States of America as represented by the Secretary of the Navy - Washington DC
International Classification:
B63B 2100
US Classification:
114245
Abstract:
A paravane includes an elongated fuselage; a wing section of spaced wing bers attached to an intermediate portion of the fuselage; stabilizer fins for maintaining the paravane lined-up with the direction of tow; a depth control flap positioned adjacent the wing section and having a pivot axis extending closely adjacent to the towing point; and depth control means for controlling the position of the control flap. The wing members have a straight leading edge portion, a straight trailing edge portion and a curved intermediate portion wherein the wing members are arranged such that the chord lines extend at oblique angles with the longitudinal axis of the fuselage and such that the resultant hydrodynamic lift force vector acting on the wing section passes through the tow point.
William J Vonfeldt from Gaithersburg, MD, age ~82 Get Report