US PATENT SUBCLASS 49 / 1
THERMAL RELEASER OR ACTUATOR

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

Internet Version by PATENTEC © 1999      Terms of Use


49 /   HD   MOVABLE OR REMOVABLE CLOSURES

1THERMAL RELEASER OR ACTUATOR {5}
2  DF  .~> Nonfusible
3  DF  .~> Common fuse releases closures for plural openings
4  DF  .~> Pull cable with fusible connection
5  DF  .~> Terminates counterweight condition {1}
7  DF  .~> Fusible closure latch or retainer {1}

DEFINITION

Classification: 49/1

(under the class definition) Device provided with means for retaining a closure in a desired position, or with means for imparting movement to the closure, said means including a device which when under the influence of heat will release the retaining means or set in motion actuating means to permit or cause the closure to move to a different position.

SEE OR SEARCH CLASS

16, Miscellaneous Hardware,

48.5, for a thermally released door check or closer.

52, Static Structures (e.g., Buildings), for a static structure with a reactive component, e.g., meltable section.

109, Safes, Bank Protection, or a Related Device,

33, for a bank protection device with thermally controlled fluent material means.

116, Signals and Indicators,

101+, for thermal alarms.

126, Stoves and Furnaces,

287.5, for a thermally released damper.

137, Fluid Handling,

72+, for valves controlled by a fusible or heat destructible element, and subclasses 79+, 457 and 468 for other heat responsive valves.

169, Fire Extinguishers,

56+, for condition responsive controls in special applications, subclass 19 for automatic valves, subclasses 37+ for sprinkler heads, and subclass 42 for fusible connections.

222, Dispensing,

54, for a thermally controlled dispensing device.

236, Automatic Temperature and Humidity Regulation, 32, and 33 for thermostats.

292, Closure Fasteners,

144, for thermally operated sliding bolts and subclass 201 for thermally operated swinging bolts.

337, Electricity: Electrothermally or Thermally Actuated Switches,

298+, for thermally controlled electrical switches.

361, Electricity: Electrical Systems and Devices,

103+, for thermally controlled (e.g., fusible) circuit interruption.

454, Ventilation,

28, for a thermally released outlet cowl and subclass 369 for thermally actuated fire dampers used in ventilating systems.