US PATENT SUBCLASS 30 / 401
.~ With control means energized in response to activator stimulated by condition sensor

Current as of: June, 1999
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30 /   HD   CUTLERY

400  DF  CAN OPENER {15}
401.~ With control means energized in response to activator stimulated by condition sensor {3}
402  DF  .~.~> Unicyclic reciprocating punch
403  DF  .~.~> With stopping upon completion of cut {1}
405  DF  .~.~> Responsive to can

DEFINITION

Classification: 30/401

(under subclass 400) Device having means for: (a) detecting any of the following characteristics: a state or property; or a change in a state or property. The occurrence of a predetermined event in any of the following: the container or its contents; the can opener itself, or the environment of the can opener affecting the operation thereof; and (b) initiating or terminating (as a result of such detection) a force or impulse other than that generated or transmitted by the detecting means; and (c) regulating or modifying (as a direct result of such initiation) the operation of the can opener.

(1) Note. This definition requires a patent to claim at least 4 instrument abilities for original placement herein. One of these must be a can opener. The other 3 are: (a) a senser (e.g., trip lever, push button, photo cell system) to detect a condition as stated in (a) of the definition; (b) an activator (e.g., an element to make-break an electric circuit, a clutch, a valve) to cause a release of energy more than, or different from that accounted for by mere change of condition (e.g., position or movement) of the senser while it is functioning, and (c) a controller (e.g., a motor or driver) to change or cause the operation of the can opener. Therefore, a cam follower, (or senser) directly linked to the controller, whereby follower movement directly effects

controller movement is not proper subject matter for this subclass due to lack of an activator as defined above. On the other hand, disclosure of a cam follower that makes and breaks an electrical circuit that energizes a motor, may be placed herein.

(2) Note. Patents claiming an on-off switch for activating a motor circuit, and which is adapted to be voluntarily manipulated by the operative, will be placed as originals herein.

(3) Note. The control system of this and indented subclasses is similar in concept to the control system of other classes, particularly Class 83, Cutting, especially subclasses 58+.