Abrégé

A water distribution system comprising a hydraulically-operated pump (34) mounted in a distribution housing (30) to receive water from a collection tank (4), located at a higher level than the pump, via a momentum enhancement chamber (22). The preferred form of pump is a fluid pressure amplifier containing a resilient obturator member and having an exhaust outlet and a delivery outlet provided with a venturi valve. A level sensor (22) mounted within the collection tank (4) provides a hydraulic output signal to a control valve (35) in response to a fall in water level within the collection tank closing therefore the exhaust outlet and turning off the pump.

Classes IPC  ?

• E03B 1/04 - Procédés ou tracés d'installations d'alimentation en eau pour alimentation domestique ou alimentation locale similaire
• E03B 3/03 - Récipients particuliers pour le recueil ou le stockage de l'eau de pluie en vue de son utilisation ménagère, p. ex. tonneaux pour recueillir l'eau de pluie
• E03B 5/02 - Utilisation des installations de pompageLeurs schémas de montage dans des bâtiments
• E03B 11/16 - Adaptation des dispositifs de mise en route ou d'arrêt des installations de pompage, p. ex. de dispositifs de commande automatique
• F04F 7/02 - Béliers hydrauliques

Abrégé

A gas spring accumulator comprising:- a housing (2, 3) provided with an inlet (20); and - a flexible diaphragm (4) dividing the interior of the housing into a working chamber (7) which is exposed to system pressure via the inlet, and a gas chamber (6); characterised in that the housing includes a diaphragm element (4) having one side exposed to system pressure via the inlet (20) and an opposite side exposed to a further chamber (13), a first non-return valve (17) arranged to admit atmospheric gas into the further chamber (13), and a second non-return valve (29) arranged to admit gas from the further chamber (13) into the gas chamber (6).

Classes IPC  ?

• F16L 55/053 - Réservoirs pneumatiques le gaz dans le réservoir étant séparé du fluide situé dans le tuyau
• F04B 11/00 - Égalisation des pulsations, p. ex. au moyen de réservoirs d'airAnticavitation

Abrégé

Stackable screening plates (3) with radial screening apertures (10) are carried on a tubular shaft having an axial key. The plates have a choice of keyways (14, 15) allowing the plates to be stacked in alternate angular positions. Spring tongues (16) formed integrally with the plates provide uniform but adjustable mutual spacing.

Classes IPC  ?

• B01D 29/46 - Éléments filtrants à arêtes, c.-à-d. utilisant des surfaces imperméables adjacentes à éléments plats empilés

Abrégé

A hydraulic pressure amplification system for increasing the output pressure in the delivery pipe to or from a ram pump, a spring rebound inertia pump or similar cyclic pumps which deliver a pulsating flow. Said hydraulic pressure amplification system comprises a fluid inlet (29), a fluid outlet (30) and one or more rigid bodies (21) which contain an enclosed convolute passageway extending between the fluid inlet and the fluid outlet. The body or bodies are sandwiched between rigid cover plates (22,23) which respectively contain the fluid inlet (29) and the fluid outlet (30).

Classes IPC  ?

• F04F 7/02 - Béliers hydrauliques

Abrégé

A housing (10) defining a duct (11) for fluid flow contains a cylinder arrangement (18-20) mounted in or at an outlet end of the duct. An input piston (30) is exposed to the fluid flow through the duct and an obturator member (21) is mounted in the duct (11) and arranged to periodically close the duct downstream of the input piston (30) such that the body of fluid flowing through the duct applies an increased pressure to the input piston. Resulting movement of the input piston can be used to directly provide mechanical power, generate electricity, or provide compression of a volatile fluid which, when ignited, provides thrust through rapid exit of combustion products.

Classes IPC  ?

• F03B 17/02 - Autres "machines" ou machines motrices utilisant la poussée hydrostatique
• F03B 17/06 - Autres "machines" ou machines motrices utilisant un écoulement de liquide, p. ex. du type à clapets oscillants