US PATENT SUBCLASS 169 / 57
.~.~ Having fusible plug, support, or holder


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



169 /   HD   FIRE EXTINGUISHERS

54  DF  SPECIAL APPLICATIONS {9}
56  DF  .~ Condition responsive control {4}
57.~.~ Having fusible plug, support, or holder


DEFINITION

Classification: 169/57

(under subclass 54) Apparatus in which a fire extinguishing material is directly restrained against discharge by a plug, support or other device which is in contact with said material until said device is fused, melted or deformed when a predetermined condition is sensed, or in which such a plug, support, etc., operates similarly in another cooperative relation with the extinguishing means.

SEE OR SEARCH CLASS

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

232, for thermally responsive ceiling structure not claimed as cooperating with a fire extinguishing system.