Battery charger splitting adapter

• US 6,597,152 B1
• Filed: 08/23/2002
• Issued: 07/22/2003
• Est. Priority Date: 08/23/2002
• Status: Active Grant

• Current Assignee: Credo Technology Corporation
• Original Assignee: S-B Power Tool Corporation
• Inventors: Neumann, Peter, Jacobs, Barry Howard
• Primary Examiner(s): LUK, LAWRENCE W
• Application Number:
  US10/226,840
• Time in Patent Office: 333 Days
• Field of Search: 320/113, 320/111, 320/107, 320/110, 320/112, 320/125, 429/96, 429/99, 429/100
• US Class Current: 320/113
• CPC Class Codes: H02J 7/0045 concerning the insertion or the connection of the batteries

Abstract

A splitting adapter for a battery charger having a power cord for connection to an electrical source, the charger having a single charging receptacle for receiving a connector extension of a battery pack of the type used with cordless power tools, said adapter including a housing having a housing connector extension with a sufficiently similar structural and electrical configuration as the connector extension of the battery pack so that the housing can be electrically connected to the battery charger when said housing connector extension is inserted into the charging receptacle. The splitting adapter also includes at least two charging receptacles, each of which is configured to receive a battery pack connector extension, where the charging receptacles are spaced from one another a sufficient distance that the battery packs will not interfere with one another when inserted into the adapter.

Claims

1. A splitting adapter for a battery charger having a power cord for connection to an electrical source, the charger having a single charging receptacle for receiving a connector extension of a battery pack of the type used with cordless power tools, said adapter comprising:

a housing having a housing connector extension with a sufficiently similar structural and electrical configuration as the connector extension of the battery pack so that said housing can be electrically connected to the battery charger when said housing connector extension is inserted into the charging receptacle;

at least two charging receptacles, each of which is configured to receive a battery pack connector extension, said charging receptacles being spaced from one another a sufficient distance that the battery packs will not interfere with one another when inserted into said adapter, wherein said charging receptacles of said adapter are configured to have substantially the same dimensions as the charging receptacle of the battery charger.

2. The adapter of claim 1 wherein the battery charger and said housing of said adapter each have a predetermined shape.

3. The adapter of claim 1 wherein the battery charger and said housing are generally rectangular, in shape.

4. The adapter of claim 1 wherein said housing of said adapter is configured to have coextensive dimensions with the battery charger.

5. The adapter of claim 1 wherein said charging receptacles are disposed on said adapter to be parallel with one another and at a generally 45°

angle to the charging receptacle of the battery charger.

6. The adapter of claim 1 further comprising circuitry for sensing a relative charge on a battery.

7. The adapter of claim 1 further comprising circuitry for maintaining a full charge on the battery in each of said at least two charging receptacles.

8. The adapter of claim 1 further comprising a visual feedback display to indicate the relative state of charge of the battery in each of said at least two charging receptacles.

9. A method of simultaneously charging multiple battery packs of the type used with cordless power tools wherein a battery charger having a single charging receptacle for receiving a single battery pack has a power cord connecting the battery charger directly to a power source, said method including:

connecting the battery charger to the power source;

providing a splitting adapter;

providing said splitting adapter with a housing connector extension and at least two charging receptacles;

coupling said housing connector extension and the single charging receptacle of the battery charger;

coupling a battery pack to each of said at least two charging receptacles.

10. A splitting adapter for a battery charger having a single charging receptacle for receiving a protrusion on a battery of the type used with cordless power tools and an AC connector for plugging into an electrical outlet, said adapter comprising:

a housing;

coupling means for connecting said housing to the battery charger; and

dual charging means for simultaneously receiving at least two batteries on said housing, wherein said dual charging means are configured to have substantially the same dimensions as said coupling means.

11. A splitting adapter for a battery charger having a power cord for connection to an electrical source, the charger having a single charging receptacle for receiving a connector extension of a battery pack of the type used with cordless power tools, said adapter comprising:

a housing having a housing connector extension with a sufficiently similar structural and electrical configuration as the connector extension of the battery pack so that said housing can be electrically connected to the battery charger when said housing connector extension is inserted into the charging receptacle;

at least two charging receptacles, each of which is configured to receive a battery pack connector extension, said charging receptacles being spaced from one another a sufficient distance that the battery packs will not interfere with one another when inserted into said adapter, and wherein said adapter is configured to have coextensive dimensions with the battery charger.

12. A splitting adapter for a battery charger having a power cord for connection to an electrical source, the charger having a single charging receptacle for receiving a connector extension of a battery pack of the type used with cordless power tools, said adapter comprising:

a housing having a housing connector extension with a sufficiently similar structural and electrical configuration as the connector extension of the battery pack so that said housing can be electrically connected to the battery charger when said housing connector extension is inserted into the charging receptacle;

at least two charging receptacles, each of which is configured to receive a battery pack connector extension, said charging receptacles being spaced from one another a sufficient distance that the battery packs will not interfere with one another when inserted into said adapter, and wherein said charging receptacles are disposed on said adapter to be parallel with one another and at a generally 45°

angle to the charging receptacle of the battery charger.