Power pack charging system for a power tool
First Claim
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1. A power pack charging system comprising:
- a hand-held apparatus;
a first rechargeable power pack connectable to the apparatus and serving to operably energize the apparatus;
a second rechargeable power pack connectable to the apparatus and serving to operably energize the apparatus, the power packs being interchangeably mounted to the apparatus; and
a charger operable to energize the first power pack, the charger being mechanically prevented from completely engaging the second power pack, wherein the second power pack is substantially prevented from being energized by the charger.
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Abstract
A power pack charging system includes a one-way compatible charger arrangement for use with multiple power pack types. In another aspect of the present invention, both of the power pack types can be used in a first charger but only one of the power pack types can be charged in a second charger.
164 Citations
38 Claims
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1. A power pack charging system comprising:
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a hand-held apparatus; a first rechargeable power pack connectable to the apparatus and serving to operably energize the apparatus; a second rechargeable power pack connectable to the apparatus and serving to operably energize the apparatus, the power packs being interchangeably mounted to the apparatus; and a charger operable to energize the first power pack, the charger being mechanically prevented from completely engaging the second power pack, wherein the second power pack is substantially prevented from being energized by the charger. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A power tool charging system comprising:
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a first power pack; a second power pack; a first device operable to supply electrical current to both power packs; and a second device operable to supply electrical current to the first power pack but not to the second power pack. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A power pack electrical connector comprising:
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a base having an at least partially circular peripheral shape; at least three substantially parallel blades projecting from a face of the base, the base and blades being integrally molded from a polymeric material; a first conductor located on an external portion of a first of the blades; a second conductor located on an external portion of a second of the blades; and a third conductor located on an external portion of a third of the blades; the second blade having a different configuration than the first and third blades. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33)
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34. A method of using a one-way compatible battery recharging system for a power tool, the system having a first power pack, a second power pack of a different material than the first power pack, and a charger, the method comprising:
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(a) connecting the first power pack to the power tool; (b) connecting the second power pack to the power tool after disconnection of the first power pack; (c) recharging the first power pack by the charger; and (d) mechanically preventing the second power pack from being charged by the charger. - View Dependent Claims (35, 36, 37, 38)
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Specification