...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!
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| Number | Title | Issue Date |
| 7209288 | Snorkel device for a submarine An optical observation device is connected to an extendable and retractable snorkel tube for above-water observation during the snorkel travel (travel at periscope depth) of the submarine. The optical observation device is designed as a compact unit which consists o... | 04/24/2007 |
| 7204197 | Mast wake reduction by shaping A mast for use on a submarine is disclosed. The shape of the mast includes a sharp leading edge. The leading edge widens to an angle greater than the maximum angle of angle of attack that the mast will experience during maneuvering. The shape produces a stagnation z... | 04/17/2007 |
| 7191997 | Vibration dampening system A vibration dampening system including a upper mounting portion, a lower mounting portion, and a vibration dampening portion coupling the upper mounting portion and the lower mounting portion. In some embodiments, the upper mounting portion is adapted to operably co... | 03/20/2007 |
| 6845728 | Towable submarine mast simulator A submarine mast simulator as part of a buoyant tow body having a hydrodynamically shaped shell. The mast simulator includes a rigid lower mast section and an inflatable upper mast section extendable from the tow body. A plurality of stabilizer fins extend radially ... | 01/25/2005 |
| 6693560 | Submarine mast autonomous controller and method A system and method provides automatic monitoring of data representing the onset of, or occurrence of fault conditions for a submarine mast system. The system is separately programmable and transparently operable with respect to the mast host system that ... | 02/17/2004 |
| 6059017 | Directional heat exchanger A directional heat exchanger system dissipates heat generated by components contained within a thermally insulated antenna mounted atop a periscope be. A first wall of thermally conductive material has a first face and a second face with the first face b... | 05/09/2000 |
| 5686694 | Unmanned undersea vehicle with erectable sensor mast for obtaining position and environmental vehicle status In brief summary, the invention provides an unmanned undersea vehicle sys comprising a mother vehicle and a daughter unmanned undersea vehicle. The unmanned undersea vehicle has an erectable observation mast for obtaining environmental information. A com... | 11/11/1997 |
| 5634424 | Modular structure for supporting and guiding sliding tubes in particular for submarine towers A modular structure for supporting and guiding tubes slidable in the vertical direction and carrying sensing, reconnaissance and transmission equipment for submarine towers, a frame formed by uprights and walls, which are longitudinal and transverse defin... | 06/03/1997 |
| 5543910 | Passive submarine range finding device and method A range finding device and method for determining the distance between a merged submarine and a target above the surface having a first and second periscopes mounted on a submarine with a known separation. These periscopes are rotatable and extensible ab... | 08/06/1996 |
| 5351639 | Positive-action device for bringing about the rotary movement of a hatch with secure locking thereof in the open position A positive-action device for bringing about the rotary movement of a hatch, as a result of the traversing stroke of a shaft moving axially within a fixed structure, particularly in submarine turrets, includes an actuating component integral with shaft and... | 10/04/1994 |
| 5128688 | Mast translation and rotation drive system utilizing a ball drive screw and nut assembly A submarine radar antenna mast extension, retraction and rotation mechanism comprises a ball drive screw attached to the mast with a ball drive nut threaded to the screw. A rotary tube surrounds the mast with the mast keyed for translation within the rota... | 07/07/1992 |
| 4848886 | Submarine periscope systems A submarine periscope system has a mast head 7 with a casing 10 from which protrudes a shaft 16 carrying observation instruments which are protected by a housing 8. A seal arrangement 30 is provided at the interface between the casing 10 and shaft 16 whic... | 07/18/1989 |
| 4771721 | Submarine periscope systems A submarine periscope of the non-hull penetrating type has an extendable hoist (11) secured at one end to the submarine hull (2) and at its other end carries a sensor pod (8). Pod (8) is rotatable by a motor (13) carried by the hoist (11) and is electrica... | 09/20/1988 |
| 4736701 | Dynamic vibration absorber A vibration damping arrangement for a structural member including leaf springs extending horizontally from a vibration absorber body adapted to be attached to the structural member. A set of horizontal-vibration-absorbing leaf springs extends in one horiz... | 04/12/1988 |
| 4640216 | Device for reducing vibrations of periscopes The invention relates to an apparatus for damping vibrational deflections of periscopes or other vessel devices, which periscopes or other vessel devices extend into an aqueous medium when in use. Particular uses for the damping apparatus include applicat... | 02/03/1987 |
| 4459935 | Phanton computer gating system A system for gating a computer to receive navigational information from the osition sensors of the periscope assembly of a submarine is disclosed. A first coil is connected as the load coil of an oscillator and is mounted in a stationary position on a subm... | 07/17/1984 |
| 4436051 | Hoisting and lowering mechanism for a rotatable mast Hoisting and lowering mechanism for a mast capable of axial and pivoting ement, comprising a jack housed at the lower part of the mast and fast to a suspension with respect to which the mast can pivot, the end of the rod of the jack being coupled through... | 03/13/1984 |
| 4300468 | Position interlock system for submarine masts and closure A submarine's mast and its protective closure are prevented from inadvertly damaging each other while deploying or retrieving the mast and while securing the closure. Interconnected logic circuitry electronically prevents an improper actuation sequence s... | 11/17/1981 |
| 4213029 | Radiation transmissive housing having a heated load bearing gasket Apparatus for protectively housing radiation transmitting or receiving eqment is provided with a window in the form of a spherical segment, which is formed of material transmissive to radiation of the frequencies of the equipment, and which has a seating... | 07/15/1980 |
| 4150875 | Pressure-resistant housing In a housing which is transparent to light of selected wavelength, a hypemispherical window of selected dimensions is formed of material which is transparent to light of the selected wavelength, the window having a seating surface. The window is supporte... | 04/24/1979 |