Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 7891308 | Marine vessel panel assembly and roll-formed panel for same A prefabricated panel assembly for use in constructing a marine vessel comprises a plurality of elongated, roll-formed metal panels fixed sided to side by longitudinal weld seams. The panels include a plate portion and an angle portion adjoining the plate portion al... | 02/22/2011 |
| 7278365 | Mechanically welded structure with stress-relieving slit and liquefied gas transport ship equipped with such a structure A mechanically welded structure comprising a first flat and thin metallic structural element extending in a plane and delimited by a straight edge on one side, and a second metallic structural element welded to the straight edge of the first structural element, or w... | 10/09/2007 |
| 6935823 | Anchor nut device for attachment to a structure An anchor nut device for attachment to a structure, the device defining a threaded bore for the reception therein of a corresponding member. The device includes an anchor nut which is fabricated from a first material, the nut defining the bore and a plurality of rad... | 08/30/2005 |
| 6058865 | Extrusion-sections for boats A generally rectangular metallic extrusion (20) for boat hull (21) construction, the extrusion (20) supporting a bottom sheet member (26). The extrusion (20) comprises a number of longitudinal ribs (30) installed upwardly from the bottom sheet, a first lo... | 05/09/2000 |
| 5782194 | Method of dissimilar metal attachment to ship hulls A bimetallic hull mount assembly (10) for reducing galvanic corrosion of a hull (12), including a foundation (14), made of a first material, welded to the hull (12), also made of the first material; and an insert (16), made of a second material, different... | 07/21/1998 |
| 5690048 | Boat hull construction A boat hull is constructed of inner and outer aluminum skin layers. A foam material and a plurality of spaced frame members are sandwiched between the two skin layers. The skin layers are directly welded to the spaced frame members, which preferably are s... | 11/25/1997 |
| 5293830 | Double-walled vessel hull construction utilizing t-shaped subcomponents A subcomponent for a subassembly of a module of a longitudinal midbody for a double-walled vessel hull is fabricated by welding an edge of a rib to an intermediate location on a face of a hull plate. A plurality of such subcomponents are alternately arran... | 03/15/1994 |
| 5219115 | Method and apparatus for testing welds The method and structure permit the testing of welds forming the structure. The structure comprises a base plate, a longitudinal member on the base plate, a web having an opening positioned over the longitudinal member, and a lap collar having an air hole... | 06/15/1993 |
| 5199368 | Small ship having outer shell formed by plastic deformation and method of producing same A small ship made of plurality of prefabricated sections, which are made at a factory by a plastic deformation process, such as stamping or rolling, and of a dimension, size and shape such that an overland transportation by road thereof is possible. The s... | 04/06/1993 |
| 4684304 | Composite stud The composite stud is mainly a corrosion-resistant alloy, but is provided with a steel tip for flawless welding to a steel plate for use in a marine environment. The steel tip is friction-welded to the corrosion-resistant alloy before machining of the stu... | 08/04/1987 |
| 4214332 | Method of constructing welded metal skin boat hulls and hulls made thereby A method of constructing a welded metal skin boat hull includes forming a framework from transverse and transom frames connected to a margin plate and to a keel and stem assembly, and adjustably bolting to the frames and connecting together, as appropriat... | 07/29/1980 |
