US PATENT SUBCLASS 74 / 97.1
.~.~ Snap action


Current as of: June, 1999
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74 /   HD   MACHINE ELEMENT OR MECHANISM

*  DD  MECHANICAL MOVEMENTS {15}
96  DF  .~ Oscillating to oscillating {2}
97.1.~.~ Snap action {1}
97.2  DF  .~.~.~> Plate spring


DEFINITION

Classification: 74/97.1

Snap action:

(under subclass 96) Mechanism wherein the energy of the driving member is stored during the beginning of the stroke and is imparted to the driven member during the latter part of the stroke to impart a rapid motion to the driven member.

SEE OR SEARCH CLASS

200, Electricity: Circuit Makers and Breakers,

402+, for a switch of that class having a movable contact and an actuator, and wherein the contact is quickly or abruptly moved independently of the actuator during actuation, which movement frequently is accomplished by a spring connection between the contact and the actuator.

236, Automatic Temperature and Humidity Regulation,

48, for a temperature control valve whose operating force is stored until such time as the valve can be moved suddenly through its total range.

251, Valves and Valve Actuation, 75, for a valve having an actuator which imparts to the valve an accelerated motion during a particular portion of its movement.