Abstract: A battery housing for a hybrid vehicle battery includes a degassing system on a floor of the housing. The degassing system includes a base body configured for attachment to the floor, where the base body includes an opening in an upper section and is at least partially permeable to a liquid in a lower section. The degassing system also includes a guide in the base body and a float provided in the base body. The guide is configured to guide the float.

Abstract: A vent cap includes a main body configured to be received within an opening in a cover of a battery cell, the main body including a fluid flow path formed therethrough to facilitate a flow of a fluid to be added to the battery cell, a valve moveably disposed within the flow path to selectively open and close the fluid flow path, and a float coupled to the valve and positioned to float adjacent a surface of a fluid disposed within the battery cell, the float causing the valve to open the fluid flow path at a pre-determined fluid level within the battery cell to permit the fluid to be added to the battery cell to flow through the fluid flow path, wherein the fluid flow path is configured to minimize an impinging on the float by the fluid to be added to the battery cell.

Abstract: A vent cap includes a main body configured to be received within an opening in a cover of a battery cell, the main body including a fluid flow path formed therethrough to facilitate a flow of a fluid to be added to the battery cell, a valve moveably disposed within the flow path to selectively open and close the fluid flow path, and a float coupled to the valve and positioned to float adjacent a surface of a fluid disposed within the battery cell, the float causing the valve to open the fluid flow path at a pre-determined fluid level within the battery cell to permit the fluid to be added to the battery cell to flow through the fluid flow path, wherein the fluid flow path is configured to minimize an impinging on the float by the fluid to be added to the battery cell.

Abstract: A battery module includes a battery case, at least a battery, and at least a thermal pad. The battery case includes a top cover and a bottom cover. The battery is received in the bottom cover of the battery case. The thermal pad is placed in a chamber of the batteries and pressed by the top cover of the battery case after the top cover and the bottom cover covering together. Therefore, the thermal energy created by the battery module can be easily transmitted to the outside of the battery module case along the thermal pad.

Abstract: A series of cell fill valves are interconnected by a series of hoses and T-connections, one to each battery cell. Each cell fill valve is controlled by a ball in a seat in a single fill opening. The ball is controlled by a float on a pivotable lever arm with an end finger which holds the ball up to admit water with the float down and allows the ball to lower onto the seat as the cell fills causing the float to rise to a shutoff level when the cell is filled to a desired level.

Abstract: A series of cell fill valves are interconnected by tubing and T-connections, one to each battery cell. Each cell fill valve is controlled by a ball in a seat in a single fill opening. The ball is controlled by a float on a pivotable lever arm with an end finger which holds the ball up to admit water with the float down and allows the ball to lower onto the seat as the cell fills causing the float to rise to a shutoff level when the cell is filled to a desired level.

Abstract: An electrical battery for multi-cellular interconnection in series, parallel or series and parallel has a protrusion and a recess, such as a tongue and a groove, extending on outer surfaces of the sidewalls of the battery case such that when a protrusion of one battery is slid into a recess of another, the two batteries are electrically connected by the portions of the protrusion and the recess that are made of electrically conductive materials connected to the voltage producing elements inside the case. The battery further includes hollow plug-in posts and plug-in pins at the top and the bottom of the case that are connected to the voltage producing elements of the battery so that when the plug-in pins of one battery are inserted into the plug-in posts of another, the two batteries are in electrical interconnection. The battery also includes an electrolyte recirculation, gas purging, and automatic watering systems.

Abstract: An electrical battery for multi-cellular interconnection in series, parallel or series and parallel has a protrusion and a recess, such as a tongue and a groove, extending on outer surfaces of the sidewalls of the battery case such that when a protrusion of one battery is slid into a recess of another, the two batteries are electrically connected by the portions of the protrusion and the recess that are made of electrically conductive materials connected to the voltage producing elements inside the case. The battery further includes hollow plug-in posts and plug-in pins at the top and the bottom of the case that are connected to the voltage producing elements of the battery so that when the plug-in pins of one battery are inserted into the plug-in posts of another, the two batteries are in electrical interconnection. The battery also includes an electrolyte recirculation, gas purging, and automatic watering systems.

Abstract: The invention relates to a gravity filling system for adding water to wet cell batteries. The system is for one or more batteries and incorporates a new and improved cell plug which will reduce risk of hazardous gases and toxic acids to the operator. The cell plug incorporates a styrofoam packed float chamber, that forces a float needle to seal off the cell when the water level reaches a predetermined desirable level. The device fills the battery level without overfilling which can be as detrimental as not filling it enough. The operator can by visual inspection ascertain when the filling of any particular battery has been completed.

Abstract: A lid for accumulator batteries has one or more holes to receive a device to ensure the circulation of electrolyte during the first charge and a second device to ensure the re-fill of electrolyte during the other charges. The lid is equipped with one or more channels each having one end facing the surface of the one or more holes and the opposite end coupled with at least one duct on the inner vertical wall of the container.

Abstract: A water top-up plug for batteries containing a liquid electrolyte has a plug housing, which is formed outwardly in the lower region so that it is complementary to an upper battery housing opening. A cover is arranged at the plug housing at the top, beneath which there is located a water chamber which has a water supply opening which can be closed by a valve and at least one flow connection to that region of the plug housing which, after the insertion into a battery housing opening, communicates with the inner space of the battery. Moreover, at least one tube stub is provided, onto which a water supply hose can be mounted and which stands in flow communication with the water inlet. At the bottom, a float projects out of the plug housing and is connected with the valve body via a float rod and a cross-piece provided at its upper end. The valve seat and the water supply opening are integrated in accordance with the invention into the plug housing.

Abstract: A water replenishment plug for batteries containing a liquid electrolyte has a push-in plug housing (11) which is made complementary at the outside to an upper battery housing opening. Furthermore, a water chamber (13) is provided at the push-in plug housing (11) at the top and has a water supply opening (15) closeable by the valve (14) and at least one flow connection to the region of the push-in plug housing (11) which, after the insertion into a battery housing opening, communicates with the interior of the battery. Furthermore, at least one tube stub (16) is provided onto which a water supply hose can be placed and which stands in flow connection (17) with the valve inlet (18). A float (19) which projects out of the push-in plug housing (11) at the bottom is connected via a float rod (20) and a cross-piece (21) provided at its upper end region to the valve body (22) which has a valve stem (27) and cooperates with a valve seat (15) at the valve housing (24).

Abstract: An automatic re-fill device includes a body portion adapted to be secured in the accumulator lid and a tubular element having a lower float portion and being slidable within the body. The tubular element has a closure device within the body and a membrane at an upper portion thereof for increasing upward pushing force to close the closure when the float is lifted by the liquid in the accumulator.

Abstract: The invention relates to a float valve (3) for container filling systems, especially for electrical traction battery filling systems, comprising a valve housing (10) that accommodates a valve chamber (11) and a valve head (31), the valve chamber being provided with a filling medium supply inlet (16) and an outlet (17) leading to a container, the valve head (31) being connected to the float via a stem and a float rod (35, 36, 37) and being movably disposed in a valve chamber (11) to open the inlet and the outlet (16, 17) and shut off the outlet (17). To guarantee quick closing action also with low liquid pressures and to prevent dripping in the closed position it is proposed according to the invention that the filling medium be introduced first in a distribution chamber from where it flows into the valve chamber in a manner that it enters the valve chamber in the bottom area of the latter along the entire surface of the side walls and flows uniformly through the valve chamber.

Abstract: This invention is directed to composite coating for maintaining low moisture levels at the surface of solid substrates. One embodiment of the invention comprises a coating having a desiccant layer between layers of the same or different elastomeric polymers. Another embodiment comprises a layer of elastomeric polymer covered with a layer of an elastomeric polymer/desiccant mixture. The composite coating may be applied to integrated circuits to prevent corrosion thereof.

Abstract: A cap (10) for accumulators suited for the automatic refill of distilled water includes a main body (20) inside which there is a chamber (13) suited for the distribution of the distilled water through a hole (14). The hole is shut by a valve (32) controlled by a float (30) and connected to the float by means of a toggle joint. The toggle joint consists of a right-angled lever (35) and of a shaft (34) connected by a hinge to the lever and to the valve. The toggle joint ensures a very high force for the shutting of the valve, such as to stand high deliveries of liquid even under pressure. The cap is also equipped with a float (30) in the shape of an upside-down glass, that is, open at the bottom on the side of the liquid upper surface, so that the push on the float is determined by the over-pressure of the air and the gasses contained in the interior of the float. The overpressure increases in direct relation to the rising of the electrolyte level.

Abstract: An automatic battery watering device includes a housing mounted in the battery cell opening. The housing has a chamber for receiving pressurized water, an internal valve opening for passing the water into the cell, a valve pin mounted in the valve opening, a float that is mounted in the battery electrolyte and connected to the lower end of the pin so as to rise and fall in response to a change in the liquid level in the cell, and a pair of internally mounted diaphragms which center and support the pin and float. The pin has a valve member for blocking the internal valve opening when the float is at an appropriate level. When the float is lowered after a drop in the level of the electrolyte, the internal valve member opens so water can flow into the battery to replenish the liquid level. The housing passes gas from the battery to the atmosphere along a path independent of the water passage.

Abstract: Plug for cells of electrical storage batteries comprising a cylindrical body (4), fastened to the vent stack (2) of the cover, capable of being connected by two pipes (7) to the immediately preceding and to the immediately following plug, and provided with two parallel cylindrical cavities (14 and 16): one central cavity (14), in the interior of which a toothed hollow stem (10) of a float (11) slides; and one lateral cavity (16), in the interior of which a smaller rod (17), which is also toothed, slides, on which a heavy metal sphere (18) rests. The stem (10) and the rod (17) are constrained to the two arms of a rocker lever (23) hinged on a pin (22) in the lower hollow portion (20) of the body (4). When the float (11) and its hollow stem (10) move upwardly, the rod (17) and the sphere (18) move downwardly. When the electrolyte is at its right level, the sphere (18) rests on a ring (19) and closes the access of filling-up water to the cavity (16) housing the rod (17) .

Abstract: An improved battery stack design for an electrochemical system having at least one cell from which a gas is generated and an electrolyte in communication with the cell is described. The improved battery stack design features means for defining a substantially closed compartment for containing the battery cells and at least a portion of the electrolyte for the system, and means in association with the compartment means for selectively venting gas from the interior of the compartment means in response to the level of the electrolyte within the compartment means. The venting means includes a relief valve having a float member which is actuated in response to the level of the electrolyte within the compartment means. This float member is adapted to close the relief valve when the level of the electrolyte is above a predetermined level and open the relief valve when the level of electrolyte is below this predetermined level.

Abstract: A watering device (10) for maintaining a predetermined electrolyte level in the cells of a battery. The device includes a plug body (72) consisting of a cover (12), a valve housing (14) and a float guide (16). A valve (22) is disposed within the body (72) to modulate the quantity of water entering each cell. A float (18) movably communicates with the valve (22). A visual indicator (28) indicates the status of the device (10).

Abstract: An improvement in a water-filling system for batteries, which protects battery cells from damage caused by hydrogen explosions occurring at other cells, is a check or stop valve, placed in the fluid communication lines between two cells, which allows passage of water, but blocks passage of an explosive shock wave.

Abstract: Control valve actuated pneumatic means evacuating electrolyte from a storage battery cell to an adjacent storage compartment and for returning the electrolyte to the cell when desired, having a storage compartment, a battery cell, pipe means extending to a lower part of the cell, control valve means for regulating the evacuation and thereafter return of the electrolyte to the cell as desired.

Abstract: This invention is an attachment for a standard storage battery attachment providing a liquid reservoir which is in communication with the individual cells of the battery for automatically maintaining a predetermined electrolytic level within the individual cells while simultaneously allowing gas buildup to be released. A valve is located between each cell and the reservoir, which valve opens and closes in response to the electrolytic level within the cell to automatically maintain the electrolyte at a predetermined level. The attachment is provided with a cover having one or more openings for adding liquid to the reservoir.