US PATENT SUBCLASS 210 / 163
.~ Grated inlet surface drain


Current as of: June, 1999
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210 /   HD   LIQUID PURIFICATION OR SEPARATION

153  DF  STRUCTURAL INSTALLATION {6}
163.~ Grated inlet surface drain {2}
164  DF  .~.~> Flat grating at surface level {1}
166  DF  .~.~> Concentric guard ring or rib


DEFINITION

Classification: 210/163

(under subclass 153) Structures including a strainer in outlet means which provide drain means for a surface, as a floor.

SEE OR SEARCH THIS CLASS, SUBCLASS:

116, for a grated surface inlet drain including means responsive to filtrate accumulation permitting discharge of treated material.

119, for a grated surface drains having back-flow preventing means.

247, for a strainer with a filtrate deflector.

459, for a pipe or plate attached filter.

SEE OR SEARCH CLASS 4, Baths, Closets, Sinks, and Spittoons, appropriate subclasses, particularly

268+, 275+, 286+, 596+, 640+, and 650+ for plumbing apparatus including drains with grated inlets.

52, Static Structures (e.g., Buildings),

12, for cover with an eave or valley gutter with a separator.

285, Pipe Joints or Couplings,

42, for flashed pipe-to-plate joint.

404, Road Structure, Process, or Apparatus,

2+, for roadway drain or gutter structure.