Watertight battery compartment cover with latch actuated o-ring

Details Watertight battery compartment cover with latch actuated o-ring Watertight battery compartment cover with latch actuated o-ring

1998-06-19

1999-12-28

Maples, John S.

Chemistry: electrical current producing apparatus, product, and

Cell support for removable cell

For plural cells

429 96, 429100, H01M 210

Patent

active

06007941&

ABSTRACT:
A cover for a battery compartment in a medical device such as an ambulatory pump that is used for infusing a medicinal fluid. The battery compartment cover includes a lever that is pivotal between an open and a closed position. The lever is connected to a plunger that applies a compressive force against an O-ring, which is trapped between a shoulder on a washer through which the plunger extends and an end of the plunger. When the lever is pivoted to its open position, the compressive force on the O-ring is released, enabling the battery compartment cover to be removed from the opening into the battery compartment. However, when the lever is pivoted to its closed position, it draws the plunger outwardly, applying a compressive force to the O-ring that causes the O-ring to expand radially outward, sealing the opening into the battery compartment against the intrusion of water or other liquids and securing the battery compartment cover in engagement with the opening.

REFERENCES:
patent: 5187746 (1993-02-01), Narisawa
patent: 5270702 (1993-12-01), Krolak
patent: 5538807 (1996-07-01), Hagiuna

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