Famous Patents
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 |
| 6152065 | Apparatus for launching and recovery of boats A dock, for launching and recovery of a lifeboat, rescue boat or like small boat on a vessel, a floating platform or a fixed installation. The boat (14) is normally stored on the dock. The dock is provided with buoyant elements (1) fixed to a frame (3). T... | 11/28/2000 |
| 4495880 | Draft assisted delivery system A device, a method, and a system for reducing the draft of large vessels to allow the successful navigation of shallow waterways which could not otherwise be traversed due to the depth of the draft of the vessel. The implementation of this system will eli... | 01/29/1985 |
| 4183316 | Variable volume depth control An apparatus for controlling the depth of an object submerged in a liquid dium includes a sealed chamber means, joined to the object, which retains a working fluid and which has a variable external volume for displacing variable amounts of the medium. The... | 01/15/1980 |
| 4159692 | Method of submerging floatation bodies and apparatus for performing same Apparatus for submerging a floatation body for placement beneath a floating structure is comprised of a tank which is divided into at least two sealed compartments. The tank has a total gross weight which is greater than the buoyancy force of the floatati... | 07/03/1979 |
| 4150503 | Apparatus for excavation and earth removal from aquatic bottoms A floatable apparatus provided with a lifting element for displacing it between the surface and bottom of a water basin has at least two jaws or grippers which are suitable for use as a clam-shell bucket or the like. The jaws are suspended from the liftin... | 04/24/1979 |
| 4104425 | Power cell driven by a gaseous or liquid pressure medium A power cell for lifting masses by inflation of the cell by a gaseous or liquid medium, the cell being hollow and, in the pressure-free state, substantially a single plane. The cell includes two parallel polygonal surfaces, preferably squares, invariant i... | 08/01/1978 |
| 4092790 | Floatable apparatus for excavating and transporting excavated material An apparatus for excavating and transporting excavated material, said apparatus including a nonfloating frame structure having a pair of opposed shovels swingably supported on the opposite sides thereof. A drive mechanism is connected between the frame st... | 06/06/1978 |
| 4082050 | Coupling between an anchor under water and a buoyant body A coupling is established between a buoyant body and a submerged anchor, by drawing down an internal bush until it is aligned between the lower ends of a pair of holes through upstanding parallel cheeks secured to the anchor. The holes have larger lower e... | 04/04/1978 |
| 4051797 | Steel boat hull salvaging assembly An assembly of components that may be used in combination with a salvage vessel to raise a sunken vessel that has a steel hull from the floor of the ocean or other body of water. The sunken vessel is loosened from the ocean floor by detonating explosive c... | 10/04/1977 |
