(under the class definition) Subject matter wherein a tuned circuit includes a lumped deformable type tuning element or elements together with the necessary mechanical structure for modifying the shape of the tuning element, as by changing the physical shape of the tuning element or elements to thereby change the reactance of the tuned circuit.
(1) Note. The compressing together of a plurality of capacitor plates to thereby vary the capacitance of the unit is not considered as deforming the element and, thus, is not properly classified in this subclass but in subclass 80 below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
44, for tuned circuits having distributed parameter type inductance and/or capacitance which is adapted to be deformed to vary the tuning of the circuit.
80, for capacitors which have plates which are movable so as to vary the spacing between the plates as for example, by compressing the plates together. See (1) Note above.
SEE OR SEARCH CLASS 336, Inductor Devices,
20, for tuners with deformable or distortable coil and/or core. See also the Search Notes for a detailed field of search as to deformable inductor type devices.
338, Electrical Resistors,
114, for resistor elements which are of the deformable type.