Abstract: A citrus fruit juice extractor wherein a whole citrus fruit is squeezed between a pair of opposed cups to force the juice-bearing internal portions of the fruit into a strainer tube and wherein an orifice or plunger tube is driven upwardly within the strainer tube concurrently to force juice and some minute solid material through the perforations in the strainer tube is disclosed herein. The extractor includes a juice collection manifold having separate chambers arranged along the length of the strainer tube to receive juice extracted through separate portions of the strainer tube. Since the juice expressed through the end of the strainer tube that is farthest from the cups is subjected to considerably less pressure than the juice forced from the upper end of the strainer tube adjacent the cups, such juice component collected in the associated lower chamber of the manifold has less undesirable fruit material suspended therein than that of the juice in the upper chamber of the manifold.

Abstract: Device for the extraction of juices and essential oils from whole fruits, in particular from citrus fruits, wherein it comprises, in combination, a series of cylindrical elements, having a vertical axis, telescopically set with a slight radial clearance, a second series of cylindrical elements, axially aligned with the preceding one and symmetrically disposed at such an interval as to allow for the insertion of a fruit, and means to draw closer said cylindrical elements of the two series in a differentiated way, so as to cause with their edges, a progressive compressive action, substantially distributed all over the fruit surface.

Abstract: A curved cup juice extractor wherein the cup is composed of two matching sections of curved interdigitating fingers which move together arcuately to enclose and squeeze the whole fruit, during which the movement and release of the cup sections is controlled by a cam and a torsional spring, and a rapid fruit feeder system works on a principle of throwing the fruit into the curved cup as the cup opens.