Resources Contact Us Home
Water supporting and propulsion systems

Image Number 3 for United States Patent #4953492.

An improved watercraft and propulsion system is disclosed for moving a watercraft such as an amphibious vehicle or a speed boat from 0 velocity to speeds in excess of 20 miles per hour. Each watercraft includes water propulsion systems which are preferably pivotally mounted on or near the rear end of the watercraft for pivotal movement between a transversely aligned stowed position above the vehicle and an operative position within the watercraft and below the vehicle. Hydrofoils may be connected to the water propulsion system, and bow or transom flaps plus the planing hull of the vehicle aids in providing adequate lift when in the water.

  Recently Added Patents
Automatic portable electronic device configuration
Control service for relational data management
High performance adaptive switched LED driver
Information display device and program storing medium
Print system
Light-emitting element, light-emitting device, and electronic device
Cable preparation tool
  Randomly Featured Patents
Process and apparatus for measuring density and mass flow
Grooved optical data storage device including a chalcogenide memory layer
Monoclonal antibody BR 96 and chimeric monoclonal antibodies having the variable region of MAB BR96, which bind to a variant of ley antigen on human carcimona cells
Purification of a methanol stream
Method and apparatus for detecting oscillator stuck faults in a level sensitive scan design (LSSD) system
Air filtration system
Pipe fitting with composite gasket assembly
Method and system for selectively etching a dielectric material relative to silicon
Light-activated semiconductor device
Tooth brush with coiled spring shanks