Bulletin Officiel de la Propriété Industrielle (BOPI) des Brevets d'Invention

BOPI 09 BR/2023 REPERTOIRE NUMERIQUE 16 Fig. 1 Consulter le mémoire ________________________________________ (11) 21140 (51) E03B 7/07 (2018.01) ; F16K 31/385 (2018.01) (21) 1202200174 - PCT/GB2020/052750 (22) 30/10/2020 (30) GB n° 1916022.5 du 04/11/2019 (54) Liquid pressure reducing valve. (72) TAYLOR, David (GB) (73) Polymer Technologies Limited, Green Court, St Lawrence, JERSEY, Channel Islands JE3 1GY (JE) (74) SPOOR & FISHER Inc. NGWAFOR & PARTNERS SARL, The House of Gideon, Golf/Bastos Quarter, Opposite The American Embassy, Entrance-Saint John Paul II Boulevard, B.P. 8211, YAOUNDE (CM). (57) A spring loaded regulator (I) has a body (2) containing a chamber (3) with an inlet (4) opening into the chamber via an inlet orifice (5). The inlet connected to a pressurized water main (6). An outlet (7) from the chamber connects to a network (8) of pipes for local distribution of water. The regulator has a flow pressure regulation plate (9) arranged opposite the inlet orifice (5). A diaphragm (10) is fastened to the plate (9) forms a seal with upper and lower parts (11.12) of the body (2). The regulation plate has a guide rod (14) extending down from it into a guide (16) m the inlet orifice (5). A compression spring (21) acts at its lower end (22) on the lop of the diaphragm (19). The upper end (23) of the spring abuts a spring drive member (24) at the end of a drive tube (25) of a servo device (26). The drive tube is housed in a fixed tube (27) of the servo device, fast with the upper pan (11) of the regulator bod} (2). Remote from the spring a lead screw (28) is journalled for axial alignment in the drive tube within the fixed tube. A motor (29) and gearbox (30) is arranged to the drive the lead screw. A nut (31) is fast with the remote end of the drive tube (25). Thus the spring drive member can be advanced to further compress the spring or retracted to relieve compression. Downstream from the outlet (7). the pipework (8) of the local distribution network extends. In it adjacent the outlet is a flow meter (32) and a pressure sensor (33). These are electronically connected to a controller (34). Also connected to the controller is a remote pressure sensor (35) at the furthest point (36) of the pipework (8). Consulter le mémoire