Celebrity Inventors
Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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 |
| 7089693 | Dredging method and apparatus An improved hydraulic dredging apparatus for removing a sediment layer from an underlying substrate lying below a water surface includes a receptacle having an open-front portion through which is sediment is collected, means for attaching the dredging apparatus to t... | 08/15/2006 |
| 4696607 | Slurry trench method and apparatus for constructing underground walls A system for constructing narrow underground walls utilizing the slurry trench method is disclosed wherein a first apparatus excavates from one end of a slurry filled trench and a second apparatus is utilized for filling the trench with a wall forming mat... | 09/29/1987 |
| 4624066 | Dredge with twin cutter head and suspension therefor A dredge provided with a twin cutter in a container unit which is suspended from the ladder yoke in a hanger and tip tackle. Stay tackle structure is provided extending between port and starboard of the dredge vessel in a cross-wise manner to the opposite... | 11/25/1986 |
| 4584784 | Method and device for maintaining tools at a level A tool is controlled below a water surface by carrying out a level comparison between a level-fixed measuring element postioned on land and a level-varying measuring element belonging to the tool and by adjusting the level of the tool with respect to a fl... | 04/29/1986 |
| 4382361 | Ocean floor dredge system having a pneumohydraulic means suitable for providing tripping and heave compensation modes There is provided a hoist, as for an ocean floor dredging operation, which is capable of providing hydraulic heavy lifting capacity, for raising or lowering the dredging means between a surface ship and the ocean floor, and further can routinely provide f... | 05/10/1983 |
| 4291474 | Dredge swell compensator apparatus An apparatus for maintaining a uniform grade of the surface being excavated or leveled by a waterborne dredge. The apparatus includes a shore mounted laser that projects a horizontal beam which is utilized to establish a reference plane, a dredge mounted ... | 09/29/1981 |
| 4232903 | Ocean mining system and process An ocean mining system for mining manganese nodules comprises a surface subsystem and an ocean bottom subsystem. The ocean bottom subsystem includes a mobile, maneuverable, self-propelled, miner vehicle which picks up, handles, washes and crushes nodules while... | 11/11/1980 |
| 4204347 | Device for cutting loose hard ground material Hard ground beneath a water surface is controllably cut away by a device ch includes a buoyant body having a work support depending therefrom and forced against the hard ground so as partially to support the weight of the body. A cutter assembly is relea... | 05/27/1980 |
| 4187625 | System for excavation at sea through horizontal guiding by means of cables An underwater excavation system comprises an excavating implement suspended from a surface support by a carrying line and means for moving the implement horizontally between an excavation site and a spoil dumping site comprising a guide line cooperating w... | 02/12/1980 |
| 4177585 | Method and apparatus for dredging In order to accurately control the cutter head of a cutter head suction dredger anchored by means of ropes, the tension in at least one of the two longitudinal ropes is measured and the winch of at least one of the two longitudinal ropes is actuated in de... | 12/11/1979 |
| 4175342 | Suction dredger A suction dredger, comprising a vessel and a suspension conveying conduit provided with a pump and having a nozzle suspended by means of at least one cable of a lifting device on the vessel, is improved for preventing breaking of the cable or damage of ot... | 11/27/1979 |
| 4146982 | Improved pump-type sludge dredging apparatus An improved pump-type sludge dredging apparatus including a pump dredger having a first ladder, a sludge suction pump acting in cooperation with the ladder and pump dredger, a suction pipe, a second ladder, a suction device suspended from the second ladde... | 04/03/1979 |
| 4102064 | Swell compensator for suction dredging system A suction dredging system comprises a vessel having an arm pivotally secured to it which can be positioned and held in an obliquely downwardly directed position and which itself comprises upper and lower parts which are pivotally interconnected with a lin... | 07/25/1978 |
| 4084334 | Suction dredge with swell compensating ladder mount A cutting-head suction-dredger comprises a floating body, a ladder and a cutting-head carried by the lower end of the ladder. The ladder supports against the floating body through a rail guide which is adapted to tilt with respect to the floating body and... | 04/18/1978 |
| 3949496 | Wave compensating system for suction dredgers A suction dredger, comprising a vessel and a suspension conveying conduit provided with a pump and having a nozzle suspended by means of at least one cable of a lifting device on the vessel is improved for preventing breaking of the cable or damage of oth... | 04/13/1976 |
