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The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
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| Number | Title | Issue Date |
| 7900569 | Pedestal for a sailing boat A pedestal (1) for a sailing boat comprises a casing (2) and inside such a casing (2): at least one driving wheel (11a, 11b) associated with a motion input shaft (3), at least one driven wheel (12a, | 03/08/2011 |
| 5967073 | Sailboat system for controlled gibing A system for controlling the jibe movements of a sailboat boom (4), which boom has an outer free end (5) connected to the boat (4) via a sheeting arrangement (6), and an inner end (7) fixed to the mast (3) via a pivot joint (8). A hydraulic actuator (13) ... | 10/19/1999 |
| 5784978 | Wind energy catchment device This invention is a wind energy catchment system using a central vertical shaft, the bottom end of which rotates and is secured to a rigid support fixed to the ground. The lower part of the shaft has radial arms secured to it, evenly spaced one from the o... | 07/28/1998 |
| 4819574 | Rudderless sailboat This specification discloses a rudderless sailing craft with two sails of approximately equal area and a vertical keel affixed to the hull near a balance point between the two sails. The central part of the craft between the two sails serves as an unobstr... | 04/11/1989 |
| 4759305 | Foil control feedback mechanism A device for controlling the angle of a foil or sail in relation to a force acting upon it. The device utilizes a 2:1 hypocycloidal gearing system which regulates the boom and sail of a boat. The device functions automatically, eliminating the need for hu... | 07/26/1988 |
| 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 |
| 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 |
| 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 |
| 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 |
| 4382417 | Glider sail assembly A glider sail assembly comprises a center boom with a fore end for directing into a wind and a mount for connecting the center boom generally horizontally at the top of a mast and directed at an upward angle towards the fore end. Each of two side booms ha... | 05/10/1983 |
| 4367688 | Sailboat rig Sailboat having twin booms, doubled sail and rotatable mast permits conventional sailing with both booms and sail sections on same tack or with booms spread, wing and wing, to run before the wind or on a reach. Sail may be reefed or furled by rotating the... | 01/11/1983 |
| 4276033 | Sailing system A sail mounting frame extends upwardly from the hull of a boat and is constructed of a lower section and an upper section which rotate relative to each other about a first axis of rotation which extends generally vertically upwardly with respect to the hu... | 06/30/1981 |
