Vent valve for an amphibious equipment having a battery housing

Details Vent valve for an amphibious equipment having a battery housing Vent valve for an amphibious equipment having a battery housing

1995-06-06

1996-11-05

Maples, John S.

Chemistry: electrical current producing apparatus, product, and

Cell support for removable cell

Support or holder per se

429 99, H01M 210

Patent

active

055716334

ABSTRACT:
An equipment having an electric circuit and usable in water comprises a battery housing arranged in the equipment to house a battery and kept airtight to the electric circuit, the battery housing having a common wall shared by an outer wall of the equipment, the common wall having an opening for connecting the battery housing to an external of the equipment, a disengagable cap structure to close the opening and releasing the cap structure by a differential pressure between a pressure in the battery housing and an external pressure of the equipment when the differential pressure exceeds a predetermined level, and an air-permeable and liquid-impermeable filter arranged in the cap structure to cover the opening.

REFERENCES:
patent: 5258242 (1993-11-01), Dean et al.
Webster's 9th New Coll. Dictionary, Merriam-Webster, Inc USA, 1985 (no month) p. 1303.

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