초록 ▼

A “sealed”electric storage battery having a check/relief valve for controlling the venting and resealing pressures for the battery wherein the valve has at least two separate sealing members each capable of adjustment independently of the other for better control of both the venting and resealing pr

A “sealed”electric storage battery having a check/relief valve for controlling the venting and resealing pressures for the battery wherein the valve has at least two separate sealing members each capable of adjustment independently of the other for better control of both the venting and resealing pressure.

대표청구항 ▼

In an electric storage battery comprising a container defining a compartment containing a gas-generating galvanic cell and means operatively associated with said container to vent said compartment when the gas pressure within said compartment is high and to reseal said compartment from the ambient a

In an electric storage battery comprising a container defining a compartment containing a gas-generating galvanic cell and means operatively associated with said container to vent said compartment when the gas pressure within said compartment is high and to reseal said compartment from the ambient atmosphere when the gas pressure in said compartment is low the improvement wherein said means comprises: a housing having an inner wall defining a chamber; an inlet to said chamber from said compartment; an outlet from said chamber to the ambient atmosphere; and check/relief valve means intermediate said inlet and outlet for separately controlling the venting and resealing pressures at predetermined levels, said valve means comprising a first sealing member adapted to open when the gas pressure in said compartment rises above said predetermined venting pressure, and a second sealing member adapted to close and reseal said compartment when the pressure within said compartment drops to said predetermined resealing pressure; whereby positive resealing and isolation of said compartment near said predetermined venting pressure is achievable totally independently of the resealing characteristics of the first sealing member.