Resources Contact Us Home
Twin-crank type heat engine

Image Number 3 for United States Patent #4683721.

A heat engine is provided with twin crankshafts and coil shaped power elements mounted between each of two crankshafts. Each power element moves upward and downward, parallel with the surface of a tank of hot water, in which the engine is partially submersed, so that every part of the power element is allowed to remain submersed in the hot water for the same time interval so as to achieve maximum rotating power.

  Recently Added Patents
Fluorine-free fused ring heteroaromatic photoacid generators and resist compositions containing the same
Cable preparation tool
Data center with free-space optical communications
Magnetic storage apparatus
Limit switch
System and method for providing radio communication in a land mobile radio system
Position and orientation measurement apparatus, position and orientation measurement method, and storage medium
  Randomly Featured Patents
Injection compression molding method and injection compression molding machine
Variable geometry inlet design for scram jet engine
Method for triggering inter-RAT idle handoff
Lubrication system for reciprocating plunger compressors
Magnetic book and method of forming same
Recoiling exercise bench
Spring powered bicycle
Injection locked multi-phase signal generator
Tightly-coupled disk-to-CPU storage server
Collapsible yarn carrier tube