Universal charging cradle for cordless telephones

• US 5,828,966 A
• Filed: 05/23/1996
• Issued: 10/27/1998
• Est. Priority Date: 05/23/1996
• Status: Expired due to Fees

• Current Assignee: Russell Davis
• Original Assignee: Russell Davis
• Inventors: Davis, Russell, Leung, William, Peterson, Paul Eric
• Primary Examiner(s): Cumming, William
• Assistant Examiner(s): LEGREE, TRACY MICHELLE
• Application Number:
  US08/652,820
• Time in Patent Office: 887 Days
• Field of Search: 455/573, 455/90, 455/462, 455/550, 455/403, 455/572, 455/571, 320/115, 320/113, 320/110, 320/107, 320/114, 379/426, 379/428, 379/433, 379/434, 379/438, 379/440, 379/441, 379/447, 379/449, 379/450, 379/453, 379/454, 379/455, D14/142, D14/145, D14/251, D14/253, D14/240, D14/140
• US Class Current: 455/573
• CPC Class Codes: H01M 50/247 specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A charging cradle for recharging cordless telephones which is modular and configurable in a variety of ways is provided. The cradle includes a charging unit and interchangeable telephone support structure. The charging cradle has at least two interchangeable support elements, one of which includes recharging elements. The support elements are removably attachable to support struts and may be attached in any order. The support struts are in electrical communication with the charging unit. The recharging support element includes electrical communication elements which connect the charging unit with the recharging contacts located on the external surface of the telephone handset. The charging cradle is adapted to hold the telephone handset in a nested relation while recharging the batteries located within the handset. Safety features prevent overcharging. The charging cradle may be constructed in such a manner to permit the recharging of most cordless portable telephones.

Claims

1. A charging cradle for a cordless telephone having external charging elements comprising:

a base, said base having a front section and a rear section, said base including an electrical charging unit,

a first support element, said first support element attached to said front section, said first support section having a first pair of electrical contacts, said first pair of electrical elements in communication with said electrical charging unit,

a second support element, said second support element attached to said rear section,

an elongated element, said elongated element attached to said second support element, said elongated element further having a distal end,

a third support element, said third support element attached to said distal end,

wherein the cordless telephone rests in said cradle formed by said first support element, said second support element and said third support element, with the cordless telephone'"'"'s charging elements in contact with said first pair of electrical contacts, permitting the cordless telephone to be recharged.

2. A charging cradle for a cordless telephone as claimed in claim 1 wherein said third support element includes a pair of retaining ears, said ears retaining the cordless telephone in said cradle.

3. A charging cradle for a cordless telephone as claimed in claim 2 wherein said first support element, said second support element, and said third support element are detachable from and interchangeable between said front section, said rear section and said distal end.

4. A charging cradle for a cordless telephone as claimed in claim 3 wherein said first support element, said second support element and said third support element maintain communication with said electrical charging unit when attached to said front section, said middle section or said distal end, said communication effected through electrical wires.

5. A charging cradle for a cordless telephone as claimed in claim 3, which further includes a pair of charging pads with rod attachment elements, said rod attachment elements to be received in said third support element, bringing said charging pads into communication with said charging unit, said communication effected through electrical wires.

6. A cradle assembly for charging the batteries of a cordless telephone, the telephone having external charging elements located on a handset, comprising:

a base, said base having a front section and a rear section, said base housing an electrical charging unit,

said front section having a first connection means,

said rear section having a second connection means,

a first support element, said first support element attached to said first connection means, said first support section having a first pair of electrical contacts, said first pair of electrical elements in communication with said electrical charging unit,

a second support element, said second support element attached to said second connection means,

an elongated element, said elongated element attached to said second support element, said elongated element having a distal end, said distal end having a third connection means,

a third support element, said third support element attached to said third connection means,

wherein the cordless telephone rests in said cradle formed by said first support element, said second support element and said third support element, with the cordless telephone'"'"'s charging elements in contact with said first pair of electrical contacts, permitting the cordless telephone to be recharged.

7. A cradle assembly for charging the batteries of a cordless telephone as claimed in claim 6 wherein said third support element has a pair of ears extended therefrom, said ears to receive the handset.

8. A cradle assembly for charging the batteries of a cordless telephone as claimed in claim 6 wherein said first support element, said second support element, and said third support element are detachable from and interchangeable between said front section, said rear section and said distal end.

9. A reconfigurable charging cradle for a cordless telephone having external charging elements comprising:

a base, said base having a front section and a rear section, said base including an electrical charging unit,

a first support element, said first support element removably attached to said front section, said first support section having a first pair of electrical contacts, said first pair of electrical elements in communication with said electrical charging unit,

a second support element, said second support element removably attached to said rear section,

an elongated element, said elongated element attached to said second support element, said elongated element having a distal end,

a third support element, said third support element removably attached to said distal end,

wherein the cordless telephone rests in said cradle formed by said first support element, said second support element and said third support element, and where said first support element, said second support element and said third support element are interchangeable in order to reconfigure said cradle in order to bring said first pair of electrical contacts into contact with the cordless telephone'"'"'s charging elements regardless of the elements location on the telephone, permitting the telephone to be recharged.

10. A reconfigurable charging cradle for a cordless telephone as claimed in claim 9 wherein said third support element includes a pair of retaining ears, said ears retaining the cordless telephone in said cradle.

11. A reconfigurable charging cradle for a cordless telephone as claimed in claim 10 wherein said ears include charging contacts, said charging contacts electrically connected to said electrical charging unit, to enable recharging of a cordless telephone with side contacts.

12. A reconfigurable charging cradle for a cordless telephone as claimed in claim 9 wherein said electrical charging unit may provide a current preferably of about 5 to 500 milliamperes.

13. A reconfigurable charging cradle for a cordless telephone as claimed in claim 12 wherein said electrical charging unit includes a sensor, said sensor detecting the presence of the cordless telephone in said cradle, said electrical charging means being disabled in the absence of the cordless telephone.

14. A reconfigurable charging cradle for a cordless telephone having external charging elements comprising:

a base, said base having a front section, middle section, and a rear section, said base including an electrical charging unit,

a first support element, said first support element removably attached to said front section, said first support section having a first pair of electrical contacts, said first pair of electrical elements in communication with said electrical charging unit,

a second support element, said second support element removably attached to said middle section,

an elongated element, said elongated element attached to said rear section, said elongated element having a distal end,

a third support element, said third support element removably attached to said distal end,

wherein the cordless telephone rests in said cradle formed by said first support element, said second support element and said third support element, and where said first support element, said second support element and said third support element are interchangeable in order to reconfigure said cradle in order to bring said first pair of electrical contacts into contact with the cordless telephone'"'"'s charging elements regardless of the elements location on the telephone, permitting the telephone to be recharged.

15. A reconfigurable charging cradle for a cordless telephone as claimed in claim 14 wherein said third support element includes a pair of retaining ears, said ears retaining the cordless telephone in said cradle.

16. A reconfigurable charging cradle for a cordless telephone as claimed in claim 15 wherein said ears include charging contacts, said charging contacts electrically connected to said electrical charging unit, to enable recharging of a cordless telephone with side contacts.

17. A charging cradle for a cordless telephone having external charging elements comprising:

a base, said base having an aperture for receiving said cordless telephone, said base including a top surface, said base further housing an electrical charging unit,

said aperture having a bottom surface, said bottom surface having a first pair of electrical contacts, said first pair of electrical elements in communication with said electrical charging unit,

a support element, said support element attached to said top surface, said support element including a pair of ears comprising a second pair of electrical contacts in communication with said electrical charging unit, said ears retaining the cordless telephone in said cradle,

wherein the cordless telephone rests in said cradle with the cordless telephone'"'"'s charging elements in contact with one of said first pair of electrical contacts, or said second pair of electrical contacts, permitting the cordless telephone to be recharged.

18. A charging cradle for a cordless telephone as claimed in claim 17 wherein said support element includes a pair of elongated rods, said rods further including electrical communication means, said rods being electrically connected to said electrical charging unit by being plugged into said top surface.

19. A charging cradle for a cordless telephone as claimed in claim 18 wherein said base is cylindrical.