A system for transmitting information between downhole components has a first downhole component with a first mating surface and a second downhole component having a second mating surface configured to substantially mate with the first mating surface. The system also has a first transmission element...http://www.google.fr/patents/US7528736?utm_source=gb-gplus-shareBrevet US7528736 - Loaded transducer for downhole drilling components
Loaded transducer for downhole drilling components