Electrical appliance and charger

• US 8,164,304 B2
• Filed: 05/16/2007
• Issued: 04/24/2012
• Est. Priority Date: 05/16/2007
• Status: Expired due to Fees

• Current Assignee: Energizer Brands, LLC (Energizer Holdings, Inc.)
• Original Assignee: Eveready Battery Company Incorporated (Energizer Holdings, Inc.)
• Inventors: Gardner, Joseph P., Kotsis, Angelo, Squires, Michael S., Rugendyke, Timothy
• Primary Examiner(s): Tso, Edward
• Assistant Examiner(s): PIGGUSH, AARON C
• Application Number:
  US11/749,404
• Publication Number:
  US 20080284374A1
• Time in Patent Office: 1,805 Days
• Field of Search: 320/107, 320/115, 362/183
• US Class Current: 320/115
• CPC Class Codes: F21L 4/085 Pocket lamps
• CPC Class Codes: H02J 7/0044 specially adapted for holding portable devices containing batteries H02J7/0045 takes precedence

Abstract

An apparatus includes a charger (104) and a portable appliance such as a flashlight (102). The flashlight includes first and second flashlight electrical contacts. The charger includes first (122a) and second (122b) flashlight supports or jaws that support the flashlight in a flashlight receiving region of the charger (104). The flashlight supports (122) include a tapered surface that varies a dimension of the battery receiving region as a function of a longitudinal position of the flashlight supports (122). The charger (104) also includes a light source (120) that indicates when the flashlight (102) has been correctly inserted in the charger (104).

Claims

1. A charger that charges a rechargeable energy source of a flashlight received in a flashlight receiving region of the charger, the charger comprising:

a charger body;

a first charger electrical contact that provides an electrical connection to a corresponding first flashlight electrical contact;

a first longitudinally extending flashlight support; and

a second longitudinally extending flashlight support that is located opposite the flashlight receiving region from the first support and is mounted for pivotal motion relative to the charger body, wherein the first and second supports define a flashlight receiving region radial dimension that varies linearly as a function of the longitudinal position along the first and second supports to define a longitudinally extending linear taper, the first and second supports having head ends and tail ends, wherein the radial dimension nearer to the head ends is greater than the radial dimension nearer to the tail ends.

2. The charger of claim 1 wherein the flashlight includes a generally cylindrical flashlight body and an enlarged flashlight head, the first flashlight electrical contact is located on the flashlight body, and the first and second flashlight supports support the flashlight body.

3. The charger of claim 1 wherein the flashlight includes a conical housing portion located between the flashlight body and an enlarged portion of the flashlight head, the charger includes a substantially planar, forward facing surface located behind and substantially adjacent the conical housing portion when the flashlight is received in the flashlight receiving region, the conical portion is angled away from a longitudinal axis of the flashlight at a first angle, the forward facing surface is angled away from a longitudinal axis of the flashlight receiving region at a second angle, and the first and second angles are equal, whereby the forward facing surface aids in the removal of the flashlight from the flashlight receiving region.

4. The charger of claim 1 wherein the first and second flashlight supports define a gap through which the flashlight is received and the radial dimension includes a dimension of the gap.

5. The charger of claim 1 wherein the first flashlight support is mounted for pivotal motion relative to the charger body and defines a flashlight receiving region radial dimension that varies as a function of the longitudinal position along the first flashlight support.

6. The charger of claim 1 wherein the defined radial dimension includes a minimum located between the head and tail ends.

7. The charger of claim 6 wherein the second flashlight support is fabricated using a molding process and the minimum is located at a parting line of the molding process.

8. The charger of claim 7 wherein the charger includes a head end facing flashlight alignment recess and the minimum is located between a head end and a tail end of the alignment recess.

9. The charger of claim 6 wherein the charger includes a second charger electrical contact that is longitudinally displaced from the first electrical contact and makes an electrical connection with a corresponding second flashlight electrical contact, and wherein the minimum is located between the first and second electrical contacts.

10. The charger of claim 1 wherein the second support includes a flashlight receiving region facing portion and a head end, and wherein the flashlight receiving region facing portion includes a head end facing radial taper.

11. The charger of claim 10 wherein the second support includes a tail end, and wherein the flashlight receiving region facing portion includes a tail end facing taper.

12. The charger of claim 1 wherein the flashlight includes a body, the first and second flashlight supports support the flashlight body in the flashlight receiving region and include spaced apart, forward portions that form an opening through which the flashlight is received, and wherein the longitudinal dimensions of the forward portions are greater than or equal to about 25% of the longitudinal dimension of the flashlight body.

13. The charger of claim 1, the charger body further comprising an arcuate wall behind and facing the flashlight receiving region defined by the first and second longitudinally extending flashlight supports.

14. The charger of claim 1, the first and second longitudinally extending flashlight supports defining the flashlight receiving region that receives only a cylindrical body of a flashlight.

15. The charger of claim 1, the radial dimension at the tail ends of the support being zero.

16. The charger of claim 1, wherein the first and second supports are configured to extend partially circumferentially around a flashlight and define a forwardly facing gap, wherein the gap at a location nearer to the head ends is greater than the gap at a location nearer to the tail ends.

17. The charger of claim 1, wherein the linear taper has an angle in the range of 1 to 3 degrees.

18. A charger that charges a rechargeable energy source of a flashlight received in a flashlight receiving region of the charger, the charger comprising:

a charger body;

a first charger electrical contact that provides an electrical connection to a corresponding first flashlight electrical contact;

a first longitudinally extending flashlight support; and

a second longitudinally extending flashlight support that is located opposite the flashlight receiving region from the first support and is mounted for pivotal motion relative to the charger body, wherein the second support defines a flashlight receiving region radial dimension that varies linearly as a function of the longitudinal position along the second support to define a longitudinally extending linear taper, the second support having a head end and a tail end, wherein the radial dimension at the head end is greater than the radial dimension nearer to the tail end.

19. The charger of claim 18, wherein the first and second supports are configured to extend partially circumferentially around a flashlight and define a forwardly facing gap, wherein the gap at a location nearer to the head end is greater than the gap at a location nearer to the tail end.

20. The charger of claim 18, wherein the linear taper has an angle in the range of 1 to 3 degrees.

21. A charger that charges a rechargeable energy source of a flashlight received in a flashlight receiving region of the charger, the charger comprising:

a charger body;

a first charger electrical contact that provides an electrical connection to a corresponding first flashlight electrical contact;

a first longitudinally extending flashlight support; and

a second longitudinally extending flashlight support that is located opposite the flashlight receiving region from the first support and is mounted for pivotal motion relative to the charger body, wherein the first and second supports define a flashlight receiving region radial dimension that varies linearly as a function of the longitudinal position along the first and second supports to define a longitudinally extending linear taper such that the first and second supports extend partially circumferentially around a flashlight and define a forwardly facing gap, wherein the gap nearer to a head end of the flashlight is greater than the gap nearer to a tail end of the flashlight.

22. The charger of claim 21, wherein the linear taper has an angle in the range of 1 to 3 degrees.