(under subclass 67) Devices comprising a means situated above ground for causing movement of means situated below ground in the well.
(1) Note. A valve above ground which causes actuation of a device in the well by changing pressure conditions is not considered an actuating means for this subclass.
(2) Note. A mere elongated member such as a wire, rod or pipe extending from inside the well to the surface is not considered an actuating means.
