Modular lighted tree

• US 9,861,147 B1
• Filed: 08/29/2016
• Issued: 01/09/2018
• Est. Priority Date: 09/23/2010
• Status: Active Grant

• Current Assignee: Willis Electric Company Limited
• Original Assignee: Willis Electric Company Limited
• Inventors: Chen, Johnny
• Primary Examiner(s): Alavi, Ali
• Application Number:
  US15/250,342
• Time in Patent Office: 498 Days
• CPC Class Codes: A41G 1/005 luminous or luminescent
• CPC Class Codes: A41G 1/007 Artificial trees
• CPC Class Codes: A47G 33/06 Artificial Christmas trees
• CPC Class Codes: F21S 4/10 with light sources attached to loose electric cables, e.g. Christmas tree lights
• CPC Class Codes: F21V 21/002 making direct electrical contact, e.g. by piercing F21V21/35 takes precedence
• CPC Class Codes: F21V 23/001 the elements being electrical wires or cables
• CPC Class Codes: F21V 23/06 the elements being coupling devices , e.g. connectors
• CPC Class Codes: F21V 33/00 Structural combinations of lighting devices with other articles, not otherwise provided for
• CPC Class Codes: F21V 33/0028 Decorative household equipment, e.g. plant holders or food dummies
• CPC Class Codes: F21W 2121/00 Use or application of lighting devices or systems for decorative purposes, not provided for in codes F21W2102/00 – F21W2107/00
• CPC Class Codes: F21W 2121/04 for Christmas trees
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H01B 17/00 Insulators or insulating bodies characterised by their form
• CPC Class Codes: H01R 24/20 Coupling parts carrying sockets, clips or analogous contacts and secured only to wire or cable
• CPC Class Codes: H01R 33/92 Holders formed as intermediate parts for distributing energy in parallel through two or more counterparts at least one of which is attached to apparatus to be held
• CPC Class Codes: H05B 45/00 Circuit arrangements for operating light-emitting diodes [LED]
• CPC Class Codes: Y10T 29/49117 Conductor or circuit manufacturing

Abstract

A lighted artificial tree includes a first tree portion including a first trunk portion, first branches joined to the first trunk portion, and a first light string. The first trunk portion has a trunk connector and a first trunk wiring assembly, the first trunk wiring assembly is electrically connectable to the first light string and the trunk connector, and at least a portion of the first wiring assembly is located inside the first portion. The second tree portion includes a second trunk portion, second branches, and a second light string. The second trunk portion has a trunk connector and a second trunk wiring assembly, the second trunk wiring assembly electrically connectable to the second lighting string and the trunk connector. The second tree portion may be mechanically coupled and electrically connected to the first tree portion by coaxially coupling the first trunk portion to the second trunk portion.

Claims

1. A tree trunk connecting system for making electrical and mechanical connections between tree portions of an artificial tree, comprising:

a first tree trunk portion including an axially-extending cylindrical wall defining a first tree trunk recess and a first tree trunk outer diameter;

a first connector assembly inserted at least partially within the first tree trunk recess, and including;

a base portion defining a base portion outer diameter, an outer perimeter of the base portion adjacent an inner surface of the cylindrical wall of the first tree trunk portion;

a generally-cylindrical receiver portion projecting axially from the base portion and defining a receiving recess, the receiver portion having a receiver portion outer diameter, the receiver portion outer diameter being less than the base portion outer diameter, an outer surface of the receiver portion and an inner surface of the cylindrical wall defining an annular slot therebetween;

a central projecting portion at least partially within the receiving recess of the generally-cylindrical receiver portion and projecting axially within the receiving recess, the central projecting portion defining a central recess, the central projecting portion including a first electrically-conductive connector portion, a second electrically-conductive connector portion, and an insulation portion separating the first and second electrically conductive connector portions;

a second tree trunk portion configured to fit into the first trunk portion to form a mechanical connection between the first tree trunk portion and that second tree trunk portion, the second tree trunk portion including a cylindrical wall defining a second tree trunk recess and a second tree trunk outer diameter, the second tree trunk outer diameter being less than the first tree trunk diameter, the second tree trunk portion configured to be received into the annular slot defined by the outer surface of the receiver portion and the inner surface of the first tree trunk portion;

a second connector inserted at least partially within the second tree trunk recess and configured to mechanically and electrically connect with the first connector, the second connector including;

a generally-cylindrical projecting portion projecting axially within the second tree trunk recess and defining a central recess, the generally-cylindrical projecting portion configured to be received by the generally-cylindrical receiver portion of the first connector;

a first electrically-conductive connector portion within the generally-cylindrical projecting portion of the second connector; and

a second electrically-conductive connector portion within the generally-cylindrical projecting portion of the second connector.

2. The connecting system of claim 1, wherein the first electrically-conductive connector portions of the first and second connectors are configured to make electrical connection with each other, and the second electrically-conductive connector portions of the first and second connectors are configured to make electrical connection with each other when the first connector is coupled to the second connector.

3. The connecting system of claim 1, wherein the second electrically-conductive connector portion of the first connector comprises a conductive cylinder.

4. The connecting system of claim 1, wherein the generally-cylindrical projecting portion of the second connector is tapered, such that one end is narrower than another end.

5. The connecting system of claim 1, wherein one of the first electrically-conductive connector portions and the second electrically-conductive portions comprises a cylindrical shape with an outer wall comprised of a conductive material.

6. The connecting system of claim 1, wherein the second connector is in electrical connection with a wiring harness configured to deliver power to a plurality of light sets.

7. The connecting system of claim 6, wherein a portion of the wiring harness is within the first tree trunk recess, and a portion of the wiring harness is outside the first tree trunk recess.

8. The connecting system of claim 7, further comprising a harness-tree plug secured to the cylindrical wall of the first tree trunk portion, and a wire of the wiring harness extends from within the first tree trunk recess through the harness-tree plug and to an exterior of the first tree trunk portion.

9. A modular artificial tree, comprising:

a first tree trunk portion including an axially-extending cylindrical wall defining a first tree trunk recess and a first tree trunk outer diameter;

a first connector assembly inserted at least partially within the first tree trunk recess, and including;

a base portion defining a base portion outer diameter, an outer perimeter of the base portion adjacent an inner surface of the cylindrical wall of the first tree trunk portion;

a generally-cylindrical receiver portion projecting axially from the base portion and defining a receiving recess, the receiver portion having a receiver portion outer diameter, the receiver portion outer diameter being less than the base portion outer diameter, an outer surface of the receiver portion and an inner surface of the cylindrical wall defining an annular slot therebetween;

a central projecting portion at least partially within the receiving recess of the generally-cylindrical receiver portion and projecting axially within the receiving recess, the central projecting portion defining a central recess, the central projecting portion including a first electrically-conductive connector portion, a second electrically-conductive connector portion, and an insulation portion separating the first and second electrically conductive connector portions;

a first plurality of branches pivotally secured to the first tree trunk portion

a first wiring harness in electrical connection with the first connector;

a first set of lights affixed to the first plurality of branches, and in electrical connection with the first connector through the first wiring harness;

a second tree trunk portion configured to fit into the first trunk portion to form a mechanical connection between the first tree trunk portion and that second tree trunk portion, the second tree trunk portion including a cylindrical wall defining a second tree trunk recess and a second tree trunk outer diameter, the second tree trunk outer diameter being less than the first tree trunk diameter, the second tree trunk portion configured to be received into the annular slot defined by the outer surface of the receiver portion and the inner surface of the first tree trunk portion;

a second connector inserted at least partially within the second tree trunk recess and configured to mechanically and electrically connect with the first connector, the second connector including;

a generally-cylindrical projecting portion projecting axially within the second tree trunk recess and defining a central recess, the generally-cylindrical projecting portion configured to be received by the generally-cylindrical receiver portion of the first connector;

a first electrically-conductive connector portion within the generally-cylindrical projecting portion of the second connector; and

a second electrically-conductive connector portion within the generally-cylindrical projecting portion of the second connector;

a second plurality of branches pivotally secured to the second tree trunk portion;

a second wiring harness in electrical connection with the second connector;

a second set of lights affixed to the second plurality of branches, and in electrical connection with the second connector through the second wiring harness.

10. The modular artificial tree of claim 9, wherein the first set of lights comprises at least three sets of lights, each set of lights comprising a plurality of lights electrically connected in parallel, the sets of lights electrically connected to each other in series.

11. The modular artificial tree of claim 9, wherein the first electrically-conductive connector portions of the first and second connectors are configured to make electrical connection with each other, and the second electrically-conductive connector portions of the first and second connectors are configured to make electrical connection with each other when the first connector is coupled to the second connector.

12. The modular artificial tree of claim 9, wherein the second electrically-conductive connector portion of the first connector comprises a conductive cylinder.

13. The modular artificial tree of claim 9, wherein the generally-cylindrical projecting portion of the second connector is tapered, such that one end is narrower than another end.

14. The modular artificial tree of claim 9, wherein one of the first electrically-conductive connector portions and the second electrically-conductive portions comprises a cylindrical shape with an outer wall comprised of a conductive material.

15. The modular artificial tree of claim 9, wherein a portion of the first wiring harness is within the first tree trunk recess, and a portion of the first wiring harness is outside the first tree trunk recess.

16. The modular artificial tree of claim 15, further comprising a harness-tree plug secured to the cylindrical wall of the first tree trunk portion, and a wire of the first wiring harness extends from within the first tree trunk recess through the harness-tree plug and to an exterior of the first tree trunk portion.