Resources Contact Us Home
Browse by Category: Main > Physics
Class Information
Number: 976/DIG.77
Name: Nuclear technology > Reactor fuel elements and their assemblies; selection of substances for use as reactor fuel elements [g21c-3/00] > Assemblies of number of fuel elements in the form of a rigid unit [g21c-3/30] > Bundles of parallel pin-, rod-, or tube-shaped fuel elements [g21c-3/32] > Spacer grids; other spacer devices [g21c-3/34] > Spacer grids wherein each cell has a polygonal (e.g., square cross section) ; cells formed of assembled metallic nonintersecting strips [g21c-3/34d] > Polygonal cells formed of intersecting strips [g21c-3/34d2] > The cells being provided with fuel element supporting members [g21c-3/34d2a]

Sub-classes under this class:

Class Number Class Name Patents
976/DIG.78 Supporting members formed only by deformations in the intersecting strips [g21c-3/34d2a2] 57
976/DIG.79 Supporting members formed only of elements fixed on the strips (e.g., by welding) [g21c-3/34d2a4] 18

Patents under this class:

Patent Number Title Of Patent Date Issued
4775509 Spacer grid for a nuclear fuel assembly Oct. 4, 1988
4756878 Grid spacer and method of making same Jul. 12, 1988
4659542 Grid structure for nuclear fuel assembly Apr. 21, 1987
4578239 Spacer for fuel assemblies of water-cooled nuclear reactors Mar. 25, 1986
4411862 Spacer grating for fuel element in a nuclear reactor Oct. 25, 1983
4314884 Nuclear fuel assembly Feb. 9, 1982

  Recently Added Patents
Systems and methods of using dynamic data for wear leveling in solid-state devices
Image playback device and method and electronic camera with image playback function
Reception circuit and signal reception method
Disk drive with a subset of sectors with reduced write-to-read gap
Graphical user interfaces and occlusion prevention for fisheye lenses with line segment foci
Inter-carrier communications for multimedia-message delivery
Magnetic impedance element and magnetic sensor using the same
  Randomly Featured Patents
System and method for developing and administering web applications and services from a workflow, enterprise, and mail-enabled web application server and platform
Fuel system for docking watercraft
Device for correcting the phase induced by the class C operation of the solid state amplifier and radar system using such a device
Mechanical-activated ID grooving tool
Failover mechanism for distributed process execution
Method and apparatus for storing information about and associating slot behaviors of a slot in a frame-based semantic network
Sulfonimide catalysts polyfunctional material combination
Method and apparatus for estimating response characteristic, and receiving method and receiver utilizing the same
Internal anti-popping assembly for solid propellant rocket motor