Powered tree construction

• US 9,843,147 B2
• Filed: 11/26/2013
• Issued: 12/12/2017
• Est. Priority Date: 10/28/2011
• Status: Active Grant

• Current Assignee: Polygroup Macau Limited (MDF Commerce, Inc.)
• Original Assignee: Polygroup Macau Limited (MDF Commerce, Inc.)
• Inventors: Leung, Chi Yin Alan, Tong, Ricky, Kwok, Chi Kin Samuel, He, Chang-Jun
• Primary Examiner(s): KIM, SHIN H
• Application Number:
  US14/090,470
• Publication Number:
  US 20140087094A1
• Time in Patent Office: 1,477 Days
• CPC Class Codes: A47G 33/06 Artificial Christmas trees
• CPC Class Codes: H01R 13/10 Sockets for co-operation with pins or blades
• CPC Class Codes: H01R 2103/00 Two poles
• CPC Class Codes: H01R 24/38 having concentrically or coaxially arranged contacts
• CPC Class Codes: H01R 31/00 Coupling parts supported only by co-operation with counterpart
• CPC Class Codes: H01R 33/06 with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other

Abstract

A power transfer system to facilitate the transfer of electrical power between tree trunk sections of an artificial tree is disclosed. The power transfer system can advantageously enable neighboring tree trunk sections to be electrically connected without the need to rotationally align the tree trunk sections. Power distribution subsystems can be disposed within the trunk sections. The power distribution subsystems can comprise a male end, a female end, or both. The male ends can have prongs and the female ends can have voids. The prongs can be inserted into the voids to electrically connect the power distribution subsystems of neighboring tree trunk sections. In some embodiments, the prongs and voids are designed so that the prongs of one power distribution subsystem can engage the voids of another power distribution subsystem without the need to rotationally align the tree trunk sections.

Claims

1. An artificial tree, comprising:

a plurality of tree trunk sections;

a first trunk section of the plurality of tree trunk sections comprising;

a first alignment mechanism comprising a first plurality of distinct, radially extending clutch elements, each radially extending clutch element of the first plurality of distinct, radially extending clutch elements comprising first and second opposing top surfaces, each of the first and second opposing top surfaces extending radially and angling circumferentially downward; and

a male end having a central prong and a channel prong;

wherein the central prong is located along a central axis of the male end and wherein the channel prong is located at a radius R from the central axis of the male end;

a second trunk section of the plurality of tree trunk sections comprising;

a second alignment mechanism comprising a second plurality of distinct, radially extending clutch elements, each radially extending clutch element of the second plurality of distinct, radially extending clutch elements comprising first and second opposing top surfaces, each of the first and second opposing top surfaces extending radially and angling circumferentially downward; and

a female end having a central void and a channel void;

wherein the central void is located along a central axis of the female end and wherein the channel void is located at radius R from the central axis of the female end;

wherein the male end and the female end are configured to engage such that the central prong of the male end engages the central void of the female end and the channel prong of the male end engages the channel void of the female end;

wherein the engagement of the male end and the female end results in an electrical connection capable of conducting electricity between the first trunk section and the second trunk section; and

wherein once the male end and the female end engage, rotation of the male end with respect to the female end is constrained by the first alignment mechanism and the second alignment mechanism.

2. The artificial tree of claim 1, wherein at least one of the first and second opposing top surfaces of the first and second plurality of distinct, radially extending clutch elements is a ridge.

3. The artificial tree of claim 1, further comprising one or more electrical outlets located on one of the plurality of trunk sections.

4. The artificial tree of claim 1, further comprising a power cord for receiving power from an outside power source.

15. The artificial tree of claim 1, wherein each radially extending clutch element of the first plurality of distinct, radially extending clutch elements further comprises a third top surface disposed between the first and second top surfaces.

5. An artificial tree, comprising:

a plurality of tree trunk sections;

a first trunk section of the plurality of tree trunk sections comprising;

a first power distribution subsystem including a male end; and

a first alignment mechanism comprising a first plurality of distinct, radially extending clutch elements, each radially extending clutch element of the first plurality of distinct, radially extending clutch elements comprising a top surface, first and second side surfaces, and first and second opposing transition surfaces, each of the first and second opposing transition surfaces extending radially and angling circumferentially downward, such that the first opposing transition surface is positioned at an angle between the top surface and the first side surface and the second opposing transition surface is positioned at an angle between the top surface and the second side surface;

a second trunk section of the plurality of tree trunk sections comprising;

a second power distribution subsystem including a female end; and

a second alignment mechanism comprising a second plurality of distinct, radially extending clutch elements, each radially extending clutch element of the second plurality of distinct, radially extending clutch elements comprising a top surface, first and second side surfaces, and first and second opposing transition surfaces, each of the first and second opposing transition surfaces extending radially and angling circumferentially downward, such that the first opposing transition surface is positioned at an angle between the top surface and the first side surface and the second opposing transition surface is positioned at an angle between the top surface and the second side surface;

wherein the male end and the female end are configured to engage each other to provide an electrical connection between the first power distribution subsystem and the second power distribution subsystem; and

wherein engagement of the male end and the female end results in an engagement between the first alignment mechanism and the second alignment mechanism that prevents rotation of the first trunk section with respect to the second trunk section.

6. The artificial tree of claim 5, wherein at least one of the first and second opposing transition surfaces of the first and second plurality of distinct, radially extending clutch elements is a ridge.

7. The artificial tree of claim 6, wherein a plurality of the first and second opposing transition surfaces of the first and second plurality of distinct, radially extending clutch elements are ridges, and wherein at least one of the first alignment mechanism and the second alignment mechanism comprises grooves into which the ridges ingress.

8. The artificial tree of claim 6, wherein a plurality of the first and second opposing transition surfaces of the first and second plurality of distinct, radially extending clutch elements are ridges configured to interface with each other.

13. The artificial tree of claim 5, wherein the second plurality of distinct, radially extending clutch elements are proximate sides of the second trunk section.

14. The artificial tree of claim 13, wherein the first plurality of distinct, radially extending clutch elements are proximate sides of the first trunk section.

9. An artificial tree, comprising:

a plurality of tree trunk sections;

a first trunk section of the plurality of tree trunk sections comprising a male end including a first alignment mechanism;

the first alignment mechanism comprising a first plurality of distinct, radially extending clutch elements, each radially extending clutch element of the first plurality of distinct, radially extending clutch elements comprising a top surface, first and second side surfaces, and first and second opposing transition surfaces, each of the first and second opposing transition surfaces extending radially and angling circumferentially downward, such that the first opposing transition surface is positioned at an angle between the top surface and the first side surface and the second opposing transition surface is positioned at an angle between the top surface and the second side surface;

a second trunk section of the plurality of tree trunk sections comprising a female end including a second alignment mechanism;

the second alignment mechanism comprising a second plurality of distinct, radially extending clutch elements, each radially extending clutch element of the second plurality of distinct, radially extending clutch elements comprising a top surface, first and second side surfaces, and first and second opposing transition surfaces, each of the first and second opposing transition surfaces extending radially and angling circumferentially downward, such that the first opposing transition surface is positioned at an angle between the top surface and the first side surface and the second opposing transition surface is positioned at an angle between the top surface and the second side surface;

wherein the male end and the female end are capable of engaging each other to provide an electrical connection between the first trunk section and the trunk section; and

wherein engagement of the male end and the female end results in an engagement between the first alignment mechanism and the second alignment mechanism that prevents rotation of the first trunk section with respect to the second trunk section.

10. The artificial tree of claim 9, wherein at least one of the first and second opposing transition surfaces of the first and second plurality of distinct, radially extending clutch elements is a ridge.

11. The artificial tree of claim 10, wherein a plurality of the first and second opposing transition surfaces of the first and second plurality of distinct, radially extending clutch elements are ridges, and wherein at least one of the first alignment mechanism and the second alignment mechanism comprises grooves into which the ridges ingress.

12. The artificial tree of claim 10, wherein a plurality of the first and second opposing transition surfaces of the first and second plurality of distinct, radially extending clutch elements are ridges configured to interface with each other.