Appeal No. 1997-3624
Application 08/398,522
9, 11 through 14, 16, 18, 27 and 28, all of the claims
currently pending in the application.
The invention relates to a battery safety device which
interrupts current flow within the battery in response to an
increase in internal battery pressure. Claim 1 is
illustrative and reads as follows:
1. A safety device for a storage battery, comprising:
a charge-discharge lead one end of which is connected to
a positive electrode side of said storage battery and the
other end of which is connected to a positive terminal of said
storage battery;
pressure-sensing means having a concave form which
deforms to convex toward an exterior of said storage battery
in response to an increase of the pressure in said storage
battery, said pressure-sensing means maintaining the
deformation without reverting to said concave form; and
cutting means for cutting said charge-discharge lead,
said cutting means being pressed by the deformation of said
pressure-sensing means to cut said charge-discharge lead, said
cutting means being an integral part of said pressure-sensing
means.
The references relied upon by the examiner as evidence of
obviousness are:
Snowdon 2,204,996 Nov. 23,
1988
(British Patent Document)
2
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