Resources Contact Us Home
Low voltage seismic sound source

Image Number 5 for United States Patent #6771565.

A boomer for generating acoustic signals in a marine seismic survey has a frame towed by a survey vessel. A coil is mounted to the frame and a conductive plate is adjacent to the coil. A capacitor is mounted to the frame, and control electronics system delivers an electric charge stored in the capacitor to the coil. The invention obviates the need for heavy conductive cables between the survey vessel and the boomer in conventional systems where the capacitors are carried by the vessel, while maintaining the desirable acoustic properties of the boomer.

  Recently Added Patents
Permanent magnet rotor with flux concentrating pole pieces
Method of driving stereoscopic display apparatus and stereoscopic display apparatus
Secondary battery pack including insulative mounting member into which PCM is inserted in lateral direction
Optical article including an antireflecting coating having antifog properties and process for making same
Wine bottle
Converter and measuring apparatus
Method and apparatus for power management control of an embedded memory having sleep and shutdown features
  Randomly Featured Patents
Cell placement alteration apparatus for integrated circuit chip physical design automation system
Low pollution glass fiber compositions
System and method for providing recovery and resynchronization for a tunneling protocol
Low profile golf bag stand system
Snowmobile suspension well skirt structure
Fabric clipping guide for an overlock machine
Article holder
Apparatus, method, and computer program product for detecting embedded information
Secure, efficient, and mutually authenticated cryptographic key distribution
Mount for optical elements