Class 440/17 - Having nonpropelling cycle segment

Subclass of Class 440 - Marine propulsion
Definition: Device wherein the propelling means supplies no motive force
No. of patents: 19
Last issue date: 04/21/2009

Number	Title	Issue Date
7520788	Reciprocating oar with propulsion reversing system A manually-operable reciprocating rowing system having a reversible oar for forward or reverse propulsion. The oar has a plurality of pivoting blades mounted in a housing and movable between open and closed positions with each stroke of the oar. In the open position...	04/21/2009
7267586	Lever powered watercraft Embodiments of the disclosure include a flotation device or watercraft propelled through the water using a lever powered propulsion system. The lever powered propulsion system includes human powered actuating levers operably connected to a reciprocating propulsion d...	09/11/2007
7172477	Safety propeller A safety propeller for a boat motor includes an annular collar having a front opening, a rear opening and a continuous peripheral wall. A plurality of angled, horizontal slits are circumferentially positioned about the peripheral wall to allow water to pass through ...	02/06/2007
7037151	Oar Disclosed is an oar, which has a supplementary blade pivotally connected to one end of the blade adjacent to the shaft thereof to increase the area of the water expelling surface, enhancing the rowing efficiency. ...	05/02/2006
6890226	Rowing surf board A rowing surf board includes a board having two through holes defined through the board and tow oars are respectively pivotably engaged with the through holes. Each oar has a blade portion which is pivotably connected to a distal end beneath the board such that the ...	05/10/2005
6500033	Method and device for propulsion of vessels A method for propulsion of water-going vessels (1) comprising a plate (9), which is located in the water (2) and extends across a desired direction of motion for the vessel (1), where the plate (9) is moved from a first position (P1) to a second position ...	12/31/2002
5938489	Leg-powered boat A new leg-powered boat for propelling through water by using one's legs. The inventive device includes a boat portion defined by an open upper end, a closed lower end, forward and rearward ends, and opposed side walls extending between the forward and rea...	08/17/1999
5445549	Water sporting equipment The equipment includes a device for floating on the surface of a body of water and for supporting at least one user, and footwear worn by the user for propelling the device through the water. The device for floating includes at least two spaced, parallel,...	08/29/1995
5366395	Pulsating impeller A pulsating impeller system is provided for moving a body through a fluid medium. The pulsating impeller includes an enclosure mounted on a vessel or other body. The enclosure is provided with an inlet-outlet aperture to facilitate the flow of the fluid m...	11/22/1994
5192237	Aquatic ski with human propulsion generated by deambulatory action An aquatic ski for human propulsion generated by deambulatory action having a floatable hull and a propulsive oscillating fin assembly. The fin assembly includes a foot seat pivotally connected to the hull and a movable fin in articulated and cooperative ...	03/09/1993
5181872	Emergency propulsion device The device is an alternative to the conventional paddle or oars, and comprises a collapsible scoop and a handle-shaft. The scoop has top and bottom panels 14,16, hinged together along one edge 18, and side-panels. The side-panels 20 are foldable, and allo...	01/26/1993
5098085	Exercise apparatus for underwater use In exercise apparatus for underwater use including an apparatus frame, and movable members mounted on the frame to be moved by a user of the apparatus, flap members, e.g., flat plates, are mounted on the movable members for movement therewith within the s...	03/24/1992
5041031	Swimming frame A swimming frame for competition in swimming, swimming instruction, muscle strengthening, and entertainment in the water comprises a pair of floats (1), a clamping unit (2, 3), and a paddle unit (4, 5, 6). It might be used by everyone regardless of the ab...	08/20/1991
4915659	Water ski also adapted for use on land A water ski also adapted for walking on land is disclosed. The ski comprises a pontoon of generally streamlined shape, formed of a lightweight rigid material, and a plurality of spaced cups of a flexible material attached to the lower surface of the ponto...	04/10/1990
4892493	Supplemental sailboat propulsion device A supplemental propulsion device for a sailboat or sailboard type water craft including a pivotal centerboard. A pair of propulsion wings that are vertically hinged to one-another and mounted to the lower portion of the leading edge of the centerboard of ...	01/09/1990
4846743	Water skiing buoyant shoes The invention is to provide a kind of skiing shoes especially referring to a kind of water skiing buoyant shoes. The distinctive features are on a pair of skiing shoe base members buoyant on water surface, we can walk freely and it becomes an additional u...	07/11/1989
4472147	Fin-pole swim apparatus This device is for aiding a swimmer to obtain more thrust when swimming underwater. Primarily, it consists of a pair of poles secured to a harness, which is worn by the user. It also consists of a plurality of pivotal fins secured to the harness, for incr...	09/18/1984
4264313	Floatable devices for aquatic sports A rocking member is installed in a recess in a device floating on water by a pivot shaft extending approximately parallel to the surface of the water. Such rocking member has a bottom impelling surface displaceable upward and downward by swinging of the r...	04/28/1981
4246861	Buoyant craft A buoyant craft, such as a boat or raft, propelled by a water jet thrust of high efficiency. Such thrust is provided by a wedge shaped chamber, such as one including a substantially flat plate pivotally mounted forwardly and on the underside of the craft ...	01/27/1981

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Class 440/17 - Having nonpropelling cycle segment