Battery pack
First Claim
Patent Images
1. A battery pack for use in a power tool comprising:
- a plurality of axially aligned battery cells forming a series circuit having an anode at one end and a cathode at the other end as outputs;
each of said battery cells having an outer casing as its cathode;
a housing surrounding and containing said battery cells;
a positive and a negative terminal exposed on one end of said housing for forming external electrical voltage connections;
a ribbon-type conductor having one end forming the exposed negative terminal and the other end coupled to the cathode of the series circuit;
said positive terminal being coupled to the anode of said series circuit;
means forming part of said housing for supporting said ribbon-type conductor and insulating said ribbon-type conductor from said battery casing; and
means attached to said housing for removably locking said battery pack in the power tool.
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Accused Products
Abstract
A unitary rechargeable battery pack includes a plurality of axially aligned battery cells coupled to each other in electrical series with an insulated housing surrounding and enclosing the cells. The housing includes complementary halves detachably connected to each other. First, second and third electrical terminals provide two positive voltages and a common or negative voltage terminal, respectively. First and second and third openings in one end of the battery pack expose the first, second and third terminals for electrical connection. The openings are accessible for connection in a 90° quadrant at one end of the battery pack.
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Citations
17 Claims
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1. A battery pack for use in a power tool comprising:
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a plurality of axially aligned battery cells forming a series circuit having an anode at one end and a cathode at the other end as outputs; each of said battery cells having an outer casing as its cathode; a housing surrounding and containing said battery cells; a positive and a negative terminal exposed on one end of said housing for forming external electrical voltage connections; a ribbon-type conductor having one end forming the exposed negative terminal and the other end coupled to the cathode of the series circuit; said positive terminal being coupled to the anode of said series circuit; means forming part of said housing for supporting said ribbon-type conductor and insulating said ribbon-type conductor from said battery casing; and means attached to said housing for removably locking said battery pack in the power tool. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 14, 15)
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10. A battery pack as in claim wherein said means for removably locking said pack in said power tool comprises:
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a locking cap removably coupled to the other end of said housing, said cap having a body portion; and first and second resilient T-shaped projections extending upwardly from said cap body portion in spaced relationship with said housing, said T-shaped projections being capable of being flexed inwardly to allow the T-shaped projections to enter the power tool and lockingly engage with said power tool. - View Dependent Claims (11, 12, 13)
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16. A unitary rechargeable battery pack comprising:
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at least first and second axially aligned battery cells coupled to each other in electrical series; an insulated housing surrounding and enclosing said cells, said housing including complementary halves detachably connected to each other; first, second and third electrical terminals for providing a first positive voltage, a second positive voltage and a third negative voltage, respectively; and first, second and third openings in one end of said battery pack for exposing said first, second and third terminals for electrical connection, said openings being accessible for connection in a 90°
quadrant of one end of the battery pack. - View Dependent Claims (17)
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Specification