Downlight apparatus and associated methods of assembly

Patent metadata

Field	Value
Publication number	US-10267465-B2
Application number	US-201715719644-A
Country	US
Kind code	B2
Filing date	Sep 29, 2017
Priority date	Apr 26, 2016
Publication date	Apr 23, 2019
Grant date	Apr 23, 2019

Abstract

A downlight apparatus may include a canister with a canister body and a canister base comprising a female helical thread defined as an engagement host. The downlight apparatus may also include a lamp including a lamp body and a male helical ridge, defined as a lamp ridge. The lamp ridge includes a platform that extends distally from a root of the lamp ridge to a distance ranging from 2 to 20 times greater than the distance between the root and the crest of an Edison screw base thread. The lamp and the canister are structured to secure to one another when the lamp engages with the engagement host.

First claim

That which is claimed is:

1. A downlight apparatus comprising:
a canister comprising
a canister body, and
a canister base comprising a female helical thread defined as an engagement host; and

a lamp comprising
a lamp body, and
a male helical ridge, defined as a lamp ridge, comprising a platform that extends distally from a root of the lamp ridge to a distance ranging from 2 to 20 times greater than the distance between the root and a crest of an Edison screw base thread;

wherein the lamp and the canister are configured to secure to one another when the lamp engages with the engagement host.

2. The downlight apparatus of claim 1 wherein the lamp comprises a screw base; and wherein the lamp body is connected to the screw base at one end and an optical chamber at another end.

3. The downlight apparatus of claim 2 wherein the screw base is an Edison base extending distally from the lamp body.

4. The downlight apparatus of claim 2 wherein the engagement host and the lamp ridge are configured to extend more than 360 degrees around their respective lamp body and canister base.

5. The downlight apparatus of claim 2 wherein the lamp ridge is configured to threadably engage into the engagement host and the screw base is configured to threadably engage into a socket.

6. The downlight apparatus of claim 2 wherein a lead of the engagement host is larger than a lead of the Edison screw base thread.

7. The downlight apparatus of claim 6 wherein a distance between internal threads of the engagement host correspond to the lead of the lamp ridge.

8. The downlight apparatus of claim 2 wherein the lamp ridge is threaded in an opposite direction than the screw base.

9. The downlight apparatus of claim 1 wherein the canister base has a depth within a range from 0.5 inches to 1.5 inches and extends distally from the canister body.

10. The downlight apparatus of claim 1 wherein the canister comprises a canister trim that is positionable so as to be flush against an external structure.

11. The downlight apparatus of claim 10 wherein the canister trim defines a diameter greater than an outer dimension of the canister base and the canister body is tapered from the canister trim to the canister base defining a concave shape.

12. The downlight apparatus of claim 11 wherein the canister body has a thickness within a range from 0.0625 inches to 0.125 inches.

13. The downlight apparatus of claim 1 wherein the canister is formed of thermally conductive material selected from the group consisting of silver, copper, gold, aluminum, steel and plastic.

14. A downlight apparatus assembly comprising:
a canister comprising
a canister body; and
a canister base comprising a female helical thread defined as an engagement host; and

a lamp comprising
a lamp base; and
a lamp body comprising a male helical ridge defined as a lamp ridge, comprising a platform that extends distally from a root of the lamp ridge to a distance ranging from 2 to 20 times greater than the distance between the root and a crest of an Edison screw base thread;

wherein the lamp and the canister are configured to secure to one another when the lamp ridge is threadably engaged into the engagement host; and
wherein the lamp ridge extends 360-degrees around the lamp body circumference and is configured to enable the lamp to complete one rotation.

15. The downlight apparatus assembly according to claim 14 wherein the lamp base is configured to engage with a socket of an external structure and the lamp ridge is configured to contemporaneously secure into the canister body.

16. The downlight apparatus assembly according to claim 14 wherein the canister is formed of thermally conductive material configured to draw heat away from the lamp; and wherein the lamp is configured to be thermally coupled to the canister when the lamp is threadably engaged into a socket.

17. The downlight apparatus assembly according to claim 14 wherein the canister comprises a canister trim that is positionable so as to flush fit against an external structure.

18. A luminaire downlight kit comprising:
a canister comprising;
a canister body; and
a canister base comprising a helical thread defined as an engagement host;

a lamp comprising;
a lamp body comprising a helical ridge defined as a lamp ridge configured to matingly engage the engagement host; and

a box configured to carry one of the canister body and the lamp or a plurality of canister bodies and lamps that are detached from one another;
wherein the lamp and the canister are configured to secure to one another when the lamp ridge is threadably engaged into the engagement host; and
wherein the lamp ridge extends more than a 360-degrees around the lamp body circumference and is configured to enable the lamp to complete more than one rotation.

19. The luminaire downlight kit of claim 18 wherein the canister further comprises a canister trim configured to secure to an external structure with a flush fit.

20. The luminaire downlight kit of claim 19 wherein a convex surface of the canister body, defined as the outside surface, comprises heat sink fins extending longitudinally from the canister base to a nominal distance from the canister trim.

Assignees

• Lighting Science Group Corp

Inventors

• Maxik Fredric S
• Boomgaarden Mark Penley
• Zhou Ran
• Widjaja Addy
• Regan Matthew
• Bartine David E

Classifications

• F21Y2101/00

  Point-like light sources · CPC title

• F21V19/006

  of point-like light sources, e.g. incandescent or halogen lamps, with screw-threaded or bayonet base (of sources having contact pins, wires or blades F21V19/0005; of LEDs or sources mounted on printed-circuit board F21V19/001) · CPC title

• F21V7/06

  with parabolic curvature · CPC title

• F21V5/04

  of lens shape · CPC title

• F21K9/237

  Details of housings or cases, i.e. the parts between the light-generating element and the bases; Arrangement of components within housings or cases (F21K9/238 takes precedence) · CPC title