Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Imaging device, method and computer readable medium
Driver circuit for driving semiconductor switches
Server chassis
Fabrication of high gradient insulators by stack compression
Look up table (LUT) structure supporting exclusive OR (XOR) circuitry configured to allow for generation of a result using quaternary adders
Apparatus for tuning a musical instrument, and a related instrument
Method and system for quantifying viewer awareness of advertising images in a video source
  Randomly Featured Patents
Priority selection circuit
Terminal post for a side terminal battery
Structure of trench isolation and a method of forming the same
Soil cultivating implements
Color image forming apparatus and method of controlling the color image forming apparatus that efficiently perform position displacement detection operation and density detection operation
Gas-cleaning equipment and its use
Injection lubricating apparatus
Method of mounting vehicular window glass
Fuzzy logic based scanning rate converter
System and method for monitoring and analyzing communications