BOPI 07 BR/2023 REPERTOIRE NUMERIQUE 44 sleeve surrounds an internal cavity having an axial inner wall at the opposing end of the mounting sleeve compared to the axial end; wherein the mounting sleeve has at least one substantially cylindrical internally threaded section having a length Li, a thread entrance towards the axial end and a thread exit towards the axial inner wall; a thread clearance section positioned between the axial inner wall and the thread exit having a length L2 and a diameter D1; a guiding section positioned between the thread entrance and the axial end of the sleeve having a length, L3; characterized in that: 0 mm < L3-L2 < 12 mm. Consulter le mémoire ________________________________________ (11) 21077 (51) B01D 61/14 (2018.01); B01D 61/22 (2018.01) ; B01D 63/02 (2018.01) (21) 1202200520 - PCT/US2021/036608 (22) 09/06/2021 (30) US n° 16/896,632 du 09/06/2020 (54) Biological and algae harvesting and cultivation systems and methods. (72) HAZLEBECK, David A. (US) et RICKMAN, William (US) (73) GLOBAL ALGAE TECHNOLOGY, LLC, 10704 Prospect Avenue, Suite C, SANTEE, CA 92071-4521 (US) (74) S.C.P AKKUM, AKKUM & Associates, n° 1777, Rue 6.261, Auditorium Jean Paul II, Quartier Mbankolo, B.P. 4966, YAOUNDE (CM). (57) Algae harvesting and cultivating systems and methods for producing high concentrations of algae product with minimal energy. In an embodiment, a dead-end filtration system and method includes at least one tank and a plurality hollow fiber membranes positioned in the at least one tank. An algae medium is pulled through the hollow fiber membranes such that a retentate and a permeate are produced. Fig. 1 Consulter le mémoire
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