Resources Contact Us Home
Portable ice rescue craft

Image Number 8 for United States Patent #7247070.

A portable ice rescue craft includes a plurality of locking raft sections that are foldable for storage and transport. A drive unit includes a drive wheel driven by an electric motor via a drive belt. The drive wheel may include a plurality of spikes configured to engage ice and a plurality of paddles that are centripetally urgeable outward to pull the rescue craft through water. A forward raft section may include a pair of outboard pontoons to provide stability and minimize lateral rocking. An aft raft section includes at least one rudder. A pair of rudders may be mounted to a plate on a pivoting, biased system. The rudders automatically fold upwardly when the ice rescue craft is on ice or land. The rudders automatically activate downwardly when the ice rescue craft is in water.

  Recently Added Patents
Power saving methods for wireless systems
High-frequency power amplifier
Audit planning
Methods circuits apparatuses and systems for facilitating access to online content
Method and device for managing devices in device management system
Human and mouse targeting peptides identified by phage display
Methods and apparatus for monitoring communication through identification of priority-ranked keywords
  Randomly Featured Patents
Reversible fabric for use in military environments and method of making same
Refrigerator door frame with insulated mullion
Reading a phase change memory
Voice channel chaining in sound processors
Operation of a two-photon three level laser
Device for removing dust and rubbish
Displaying device, its driving circuit and its driving method
Mixing valve including a molded waterway assembly
Powder constant-volume feeder
Crosslinking aqueous pigment dispersion