Another feature is a thread cut out (14, 20) on the trailing edge of the thread, creating a barb (60, 64) which has a tendency to inhibit unscrewing.

The root of the thread is cut on multiple cutting radii having displaced centers.

Another feature is a thread cut out (14, 20) on the trailing edge of the thread, creating a barb (60, 64) which has a tendency to inhibit unscrewing.

stopper manufactured simply by cutting from corkwood

Any bottom-set gillnet or entangling net

Any bottom-set gill net or entangling net

A net of the cage and the weight on the net keep the net stretched.

Any bottom-set gillnet or entangling net

The thread is typically a variable width thread having a progressively increasing thread width throughout a continuous section of thread.

The net system (16) comprises a net (20), a net (actuator24), a net deployment and retrieval assembly (28) for transmitting motion between the net (20) and its actuator (24).

bottom-set net means a trammel net, a bottom-set gillnet or a combined bottom-set net

entangling net' means a static net consisting of a wall of netting rigged so that the netting is hung onto the ropes to create a greater amount of slack netting than a gillnet

The first thread has a first thread shape and the second thread has a second thread shape that is substantially opposite to the first thread shape.

A liquid transfer system (100) comprising a net (170) and a net support (160), wherein, the net (170) is integrally joined with the net support (160).

Any bottom-set gillnet or entangling net ≥ 220 mm