US PATENT SUBCLASS 493 / 18
.~.~.~ Plural interrelated sensors

Current as of: June, 1999
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493 /   HD   MANUFACTURING CONTAINER OR TUBE FROM PAPER; OR OTHER MANUFACTURING FROM A SHEET OR WEB

3  DF  CONTROL MEANS ENERGIZED IN RESPONSE TO ACTIVATOR STIMULATED BY CONDITION SENSOR {5}
8  DF  .~ Responsive to work material, the product or means engaging the work material or the product {13}
17  DF  .~.~ By use of plural sensors {1}
18.~.~.~ Plural interrelated sensors {1}
19  DF  .~.~.~.~> Sensing opposite edges of planar work {1}

DEFINITION

Classification: 493/18

Plural interrelated sensors:

(under subclass 17) Method or apparatus wherein the first detecting means and the second detecting means are interconnected to cooperate in regulating an operation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

14+, for plural sensors including a photocell, used in a operation of this class.