US PATENT SUBCLASS 404 / 25
.~ Vault cover-closure


Current as of: June, 1999
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404 /   HD   ROAD STRUCTURE, PROCESS, OR APPARATUS

17  DF  PAVEMENT {9}
25.~ Vault cover-closure {1}
26  DF  .~.~> Elevation or level adjustment


DEFINITION

Classification: 404/25

(under subclass 17) Pavement structure relating to movable means adapted to form part of the pavement surface while spanning an opening in said surface, which adaptation enhances the traffic bearing function of this pavement portion; e.g., inhibits tilting, rotation, "jumping", noise, etc.

(1) Note. Nominal Reference to location in road or pavement, to strength, or details as to fit, will not require classification in Class 404.

(2) Note. A complete search for vault cover-closure must include subclasses 22+ above. See (1) Note under subclass 22.

SEE OR SEARCH CLASS

49, Movable or Removable Closures, appropriate subclasses for similar closures-even if called "manhole covers" or "vault

closures" -which do not directly provide for traffic bearing characteristics

21, 34, 41, and 465 for manhole covers and frames and subclasses 504 and 505 for frames. 52, Static Structures (e.g., Buildings),

19+, for a manhole.

70, Locks,

158+, for locking structure associated with a manhole cover.

137, Fluid Handling,

371, for a valve or water well cover.

220, Receptacles,

220+, for manhole cover structure.

292, Closure Fasteners, appropriate subclasses for securing devices for a manhole cover.

454, Ventilation, appropriate subclasses for a movable closure combined with means to supply, distribute, regulate, treat or direct air in a tortous path or to change the direction of flow of the air.