Screw drive vehicle

Details Screw drive vehicle Screw drive vehicle

2007-08-14

2007-08-14

Swinehart, Ed (Department: 3617)

Marine propulsion

Buoyant propelling means

C180S007200

Reexamination Certificate

active

11284417

ABSTRACT:
A screw drive vehicle has a main housing with forward and aft ends and first and second lateral sides. A first support arm rotatably supports a first pontoon assembly from the first lateral side of the main housing. A second support arm rotatably supports a second pontoon assembly from the second lateral side of the main housing. A reversible motor in the housing simultaneously rotates the support arms from positions parallel to one another and the main housing to non-parallel positions. Each pontoon assembly includes a tubular housing with exterior screw thread supported for rotation between distal ends of the arm and a reversible pontoon drive motor operably coupled with the tubular housing so as to rotate the housing and thread in a selected rotational direction.

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Provisional Patent Application (attached); Express Mail No,; EV 662716273US filed May 11, 2005 entitled “Screw Drive Vehicle”; Dexter Liu, inventor.
Proceedings of the ANS Seventh Topical Meeting on Robotics and Remote Systems, vol. 1 Published by the American Nuclear Society, Inc. (1997), cover and pp. 352-359.

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