Resources Contact Us Home
Scan assembly and method for transferring power and data across a rotary interface

Image Number 3 for United States Patent #5594176.

An ultrasonic scan assembly for use in inspecting downhole gas pipes comprises a sensor section which rotates in relation to an end section that remains essentially level forming a rotating interface. The sensor section includes at least one ultrasonic transducer for transmitting interrogating pulses into a pipe wall and for receiving return pulses that are analyzed for determining the maintenance and repair needs of the gas pipe. Provided in the scan assembly is a rotary transformer for magnetically coupling signals, such as return pulse data or power, across the rotating interface of the scan assembly. The rotary transformer includes a primary winding on one section of the scan assembly and a secondary winding on another section of the scan assembly. The primary windings and secondary windings associated with respective sections of the scan assembly can be placed in parallel or concentric relationship.

  Recently Added Patents
Resin composition, prepreg, resin sheet, metal-clad laminate, printed wiring board, multilayer printed wiring board and semiconductor device
Fast base station switching method and system, and hierarchical zone-based fast handoff approach
Fluid-borne particle detector
Watch chain
Nonvolatile semiconductor memory device and method for controlling the same
Concentrating photovoltaic system module with actuator control
  Randomly Featured Patents
Plasma display device and driving method thereof
Virtualization of graphics resources
Electronic display panel
Retinal prosthesis techniques
Dental fillers including a phosphorus containing surface treatment, and compositions and methods thereof
Apparatus and method for limiting free-flow in an infusion system
Double emulsion techniques for making novel compositions containing gluten and polysaccharides that contain uronic acid residues useful for encapsulating fats, oils and solids
Methods and apparatus for delivering antibiotic powders into the femoral canal for the reduction of orthopaedic sepsis during total hip arthroplasty
E10 reporting tool
Method and apparatus of injection molding front grill panels of room air conditioner units and the like