Abstract: A sealing ring for a frusto-conical connection hole through a divider wall in an accumulator includes a plate which contacts one side of the divider wall and a sheath which extends through the connection hole, the sheath defining an outer surface which expands in frusto-conical fashion from a base at the plate to a free end and an inner surface which can be cylindrical or frusto-conical.

Abstract: The finding realizes a sealing ring (1, 100, 101) to be applied to frusto-conical connection holes (5) of the cells (L) of an accumulator (A) which comprises a plate (2, 2a) equipped with a through hole (3, 31) axially to which is arranged the base (7) of a sheath (4, 4a, 4b) suitable for coupling in the connection hole (5). A portion of the cross-section of the sheath (4, 4a, 4b) has a diameter (8) greater than the diameter (9) of the base (7) of the sheath (4, 4a, 4b).

Abstract: An electric accumulator, in particular of the lead acid type, comprises a container for the active elements that make up the accumulator arranged in one or more cells, and a cover that closes the container, the cover having plugs for sealing the access to each of the cells, the accumulator being equipped with at least one explosion-proof device for controlled venting of the gas evolved within the accumulator during its operation.

Abstract: Sealing and breathing valve assembly for accumulators comprising: at least one substantially tubular collar associated to the cover of said accumulator and suitable for connecting the external environment with one or more breathing ducts made in said cover; an elastic cap of a substantially tubular shape closed by a bottom amovably coupled to the external surface of said tubular collar. Said cap has at least one first part of a substantially cylindrical surface next to said bottom with a thickness reduced with respect to the remaining part next to the bottom of said cap, said first cap having a radial elastic deformation with respect to the remaining part working as a sealing function.

Abstract: A method for forming lead-acid batteries (2) that comprises the following stages: a first electrolyte (7) at a given concentration and constant temperature is collected from a first tank (5); said first electrolyte (7) is distributed to the batteries; said first electrolyte (7) is circulated continuously at predetermined and substantially constant concentration and temperature for a preset amount of time; said batteries are powered with a direct current during the circulation of said first electrolyte (7) for a given initial charge time; the circulation of said first electrolyte (7) is cut off and a second electrolyte (8) is circulated in said batteries, said second electrolyte being collected from a second tank (6), at a greater concentration than the previous electrolyte and at a preset and substantially constant temperature for a further preset time; said batteries are powered with a direct current during the circulation of said second electrolyte (8) for a preset second charge time.

Abstract: A mobile treatment surface (1) for battery formation comprising: a bearing surface (11) for the batteries; a delivery conduit (3) for the acid to the batteries to be formed; a collecting conduit (4) for the acid outgoing from said batteries to be formed; acid circulation means (9) and means for delivering direct current (50) to the forming batteries. The delivery conduit (3) comprises a first acid adduction pipe (31) coaxially disposed inside a second acid pipe (32) and provided with a plurality of radial holes (311) for taking the acid into the second pipe. The second pipe is provided with a plurality of acid outlet holes (321), each of them being connected to a device (324) for taking the acid into the battery to be formed.

Abstract: The invention concerns a cover (2, 200, 201, 203, 204) for an electric accumulator (1, 100, 101, 102, 103, 104) and an accumulator (1, 100, 101, 102, 103, 104). The cover has a valve device (9) having an inlet (10) that communicates with the cells (5) of the accumulator and en outlet communicating (11) with the external environment (A), the valve device being adapted to prevent the leaking of electrolyte (E) from the cells (5) and to allow the disposal to the outside of the gases that develop inside the accumulator (1, 100, 101, 102, 103, 104) when the pressure in the cells (5) exceeds a predetermined value.

Abstract: The invention concerns a cover (1, 101, 102, 103, 104, 105) for an electric accumulator (100) adapted to be integral with the container (2) of the accumulator (100) and a relative accumulator (100). The cover (1, 101, 102, 103, 104, 105) comprises: a reservoir (6), adapted to contain a topping up liquid (R) of the electrolyte (E) present in the cells (4) of the accumulator (100), communicating through a supply duct (7) with the cells (4); control tneans (9) of the level (L) of the electrolyte (E) in the cells (4) adapted to prevent/allow the flow of topping up liquid (R) when the corresponding level (L) of the electrolyte (E) is higher/lower than a predetermined level (S).

Abstract: The finding realises a sealing ring (1, 100, 101) to be applied to frusto-conical connection holes (5) of the cells (L) of an accumulator (A) which comprises a plate (2, 2a) equipped with a through hole (3, 31) axially to which is arranged the base (7) of a sheath (4, 4a, 4b) suitable for coupling in the connection hole (5). A portion of the cross-section of the sheath (4, 4a, 4b) has a diameter (8) greater than the diameter (9) of the base (7) of the sheath (4, 4a, 4b).

Abstract: A water softener employs a vessel, a distributor with a manifold body associated to said vessel and a valve control device. A control unit programs operation of the softener. An actuator unit has a cylinder divided into a first chamber and a second chamber. The actuator unit is adapted to move a spool to define different flow ways, for water. The first chamber communicates directly with a water inlet pipe, and the second chamber communicates with the inlet pipe through a valve and an outlet.

Abstract: Sealing and breathing valve assembly for accumulators comprising: at least one substantially tubular collar associated to the cover of said accumulator and suitable for connecting the external environment with one or more breathing ducts made in said cover; an elastic cap of a substantially tubular shape closed by a bottom amovably coupled to the external surface of said tubular collar. Said cap has at least one first part of a substantially cylindrical surface next to said bottom with a thickness reduced with respect to the remaining part next to the bottom of said cap, said first cap having a radial elastic deformation with respect to the remaining part working as a sealing function.

Abstract: An installation for manufacturing accumulators employs a plurality of pallets for supporting the accumulators, a loading station (3), an unloading station (4), a power supply (5), and an electrolyte feeder (6). A casing (7) with projecting supports (8) is positioned side by side and aligned in vertical direction for supporting the pallets to create the same number of accumulator (A) manufacturing stations, and a handler (10) moves the pallets (2).

Abstract: The invention realises an improved container for accumulators equipped with one or more cells, suitable for housing one or more elements of the accumulator and defined by walls of which one is equipped with one flexible support tab, for one or more elements, which substantially extends on a vertical plane. A portion of the longitudinal profile of the support tab has a twist with respect to the vertical plane suitable for giving the desired flexibility to the support tab.

Abstract: A seal and bleed valve unit (1, 20) for electric batteries comprising: a tubular neck (2, 21) associated to the cover (C) of the battery and adapted to put the outside in communication with bleed ducts (S) made in the cover (C); an elastic cap (3, 23) consisting of a tubular body (4) closed by a bottom (5) and removably coupled to the outside of the tubular neck (2, 21). The tubular neck (2, 21) ends with a thinner collar (6, 22) relative to the outer surface (2a) of the tubular neck (2, 21), said collar cooperating with the inner surface (7) of the cap (3, 23) to define an annular chamber (8, 24).

Abstract: A water softener employs a vessel, a distributor with a manifold body associated to said vessel and a valve control device. A control unit programs operation of the softener. An actuator unit has a cylinder divided into a first chamber and a second chamber. The actuator unit is adapted to move a spool to define different flow ways, for water. The first chamber communicates directly with a water inlet pipe, and the second chamber communicates with the inlet pipe through a valve and an outlet.

Abstract: A seal and bleed valve unit (1, 20) for electric batteries comprising: a tubular neck (2, 21) associated to the cover (C) of the battery and adapted to put the outside in communication with bleed ducts (S) made in the cover (C); an elastic cap (3, 23) consisting of a tubular body (4) closed by a bottom (5) and removably coupled to the outside of the tubular neck (2, 21). The tubular neck (2, 21) ends with a thinner collar (6, 22) relative to the outer surface (2a) of the tubular neck (2, 21), said collar cooperating with the inner surface (7) of the cap (3, 23) to define an annular chamber (8, 24).