Bizarre Patents
A sealed crustless sandwich for providing a convenient sandwich without an outer crust which can be stored for long periods of time without a central filling from leaking outwardly.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 6689952 | Large membrane space structure and method for its deployment and expansion A large membrane space structure deployed and spanned by centrifugal force owing to the spin motion, contains a hub located at a central portion thereof and a sail including a plurality of petals attached to the hub by supports. Each of the petals has reg... | 02/10/2004 |
| 4856448 | Harmonica sail A sail for a boat comprising a first panel having a predetermined draft therein, a second panel having a predetermined draft therein, and a plurality of baffles extending between the first and second panels, the first and second panels being open at the l... | 08/15/1989 |
| 4854255 | Sailing provisions including release to prevent capsizing A sailing provision includes a multiprofile sail with a plurality of individual profiles, which overlap each other and which are variable in their distance from each other. The multiprofile sail replaces conventional one piece head sails or main sails. Th... | 08/08/1989 |
| 4848258 | Airfoil sailing system An airfoil system for use on water vessels is described. A plurality of fore and aft symmetrical sails are arranged to form an asymmetrical two surface airfoil. The individual sails may be rotated to allow tacking. The parameters of sail configurations de... | 07/18/1989 |
| 4757777 | Ultralight waterborne vessel and sail A colapsible light and strong vessel adapted for movement over water having a substantially terahedral frame comprising three elongated rigid members each connected to a buoyant hull and which meet at a common juncture, the hulls are configured such that ... | 07/19/1988 |
| 4669409 | Wind ship propulsion system A sailing rig which comprises a rigid airfoil, with intakes on either side of its front. Air is drawn through the leeward intake into a front compartment, then by fan to a pressurized rear compartment, where it exits via a rearwardly directed jet nozzle o... | 06/02/1987 |
| 4646670 | Sail system for sailboards, and boardsailing apparatus and method An improved single-boom sailing rig for sailboards, and methods of use, are disclosed. A curved, rotatable boom (100) is provided with a forward end set at a slight angle with respect to the chord, with a separately-rotatable camber control (110) located ... | 03/03/1987 |
| 4561374 | Wind ship propulsion system A rigid or semirigid sailing rig having an airfoil shaped mainsail, hinged at its luff to an airfoil shaped jib pivotable at the hinge axis 25° to either side of the mainsail's centerline to form a continuous airfoil which is smoothly curved on the lee s... | 12/31/1985 |
| 4506619 | Wing sail drive system A hydraulic drive system for a wing sail on a vessel, comprising a rotatable frame at the base of the mast and hydraulic cylinders connected between the frame and the ship's structure to cause rotation of the frame in either direction through a limited an... | 03/26/1985 |
| 4505217 | Rigid marine sail A rigid marine sail comprises a vertical mast secured onto a deck of a ship; at least one pivot shaft provided substantially in parallel with the mast; a left sail portion and a right sail portion pivotally secured respectively to the left side and the ri... | 03/19/1985 |
| 4465008 | Sailcraft Improved sailcraft have a plurality of rectangular sails of approximately equal size, each carried on a separate mast that is enveloped by the sail luff. A full-length batten is fitted to the leech of each sail. The leech of each sail may overlap the luff... | 08/14/1984 |
| 4453483 | Sail assembly for vessels A sail assembly for vessels which includes a plurality of elongated vanes or sails having a high aspect ratio to increase efficiency.... | 06/12/1984 |
| 4448144 | Method for opening, closing and rotating rigid marine sail A method for opening, closing and rotating a rigid marine sail, which comprises the steps of: selectively opening, closing and rotating, in response to a wind velocity and a wind direction, a rigid sail comprising at least two sail portions which are fitt... | 05/15/1984 |
| 4418632 | Method for operating a rigid marine sail A rigid marine sail has a rigid left sail portion and a rigid right sail portion, both of which are pivotally secured to a mast on a ship so as to be pivotable about one common pivot axis which extends substantially parallel to the mast of the ship. The c... | 12/06/1983 |
| 4388888 | Adjustable airfoil This invention relates to an adjustable airfoil which in one embodiment includes a pivotal mast having laterally extending spaced upper and lower arms. Between the arms is a vane which is rotatably mounted on the mast and has a luff slot at its aft end fo... | 06/21/1983 |
