US PATENT SUBCLASS 149 / 3
.~ Coated component

Current as of: June, 1999
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149 /   HD   EXPLOSIVE AND THERMIC COMPOSITIONS OR CHARGES

2  DF  STRUCTURE OR ARRANGEMENT OF COMPONENT OR PRODUCT {4}
3.~ Coated component {3}
4  DF  .~.~> Component base contains both organic and inorganic explosive or thermic constituents
5  DF  .~.~> Component base contains an inorganic explosive or inorganic thermic constituent {1}
9  DF  .~.~> Component base contains organic explosive or organic thermic constituent {2}

DEFINITION

Classification: 149/3

(under subclass 2) Compositions or products in which at least two of the components are associated together such that one constitutes a coating and the other a base or support for the coating.

(1) Note. This and indented subclasses take patents relating to coated explosive or thermic compositions or products and to components thereof under the definition of this class and to coating processes when intended to aid or otherwise beneficially modify the explosive or thermic properties of the material. The coating, per se, of nonexplosive or nonthermic material or of explosive compounds for such purposes as preservation, or to render the material insensitive, is in the appropriate material class or coating class.

(2) Note. The term "coating" as used in this and indented subclasses has the same scope as that found in the class definition of Class 427, Coating Processes, except that "impregnation" is not considered to be "coating" for these subclasses unless the patent makes it clear that the characteristics of only the surface of the material is modified. Generally, patents are not considered for this and indented subclasses which involve merely the addition of a liquid portion to an adsorbent portion or to a composition or product that contains or serves as an adsorbent.

(3) Note. Patents for products or charges which are defined by composition and structure, even though the structure is only nominally recited are classified in Class 102, Ammunition and Explosives, when the overall charge or unit is claimed as being coated.

SEE OR SEARCH THIS CLASS, SUBCLASS:

17+, for products having a portion in the form of particles which are dispersed throughout a more or less continuous solidified or matrix portion. SEE OR SEARCH CLASS

86, Ammunition and Explosive-Charge Making, appropriate subclasses, for combined processes of explosive charge making which include a coating step.

102, Ammunition and Explosives, appropriate subclasses, and particularly

283+, for coated preshaped explosive charges, grains or units, and see "(3) Note" to this subclass, (of Class 149).

260, Chemistry of Carbon Compounds, its daughter Classes 530-570, and Class 585, Chemistry of Hydrocarbon Compounds, appropriate subclasses for organic compounds, including explosive compounds, when treated with a preservative unless the "preservative" is disclosed as further aiding the explosive or thermic properties of the compound.

423, Chemistry of Inorganic Compounds,

274, for inorganic compounds coated with a preservative.

427, Coating Processes, for processes of coating in general.