(19)Fresh off Patent
(45) Week of Oct 19, 2026 No. 7 3,667 lapsed 70 listed
Gadgets & electronics · lapsed Sep 4, 2026

Recessed LED downlight with hinged power-supply/retainer

A recessed LED downlight intended for ceiling installation. The unit is a cylindrical housing containing an LED module with heat sink, an internal light-diverging element and a power-supply assembly that can deflect to pass through the ceiling cutout then return to engage a support bracket against the ceiling; consumers and small electrical contractors install it. The design emphasizes a power-supply/retaining arrangement that simplifies insertion and securing in the ceiling hole.

Sheet 1 of the patent drawingsSheet 2 of the patent drawingsSheet 3 of the patent drawings

(57) What the patent covered

This write-up was generated by AI from the patent's text and may contain mistakes, so check it against the original patent before relying on it.

The main independent claim covered a downwardly closed cylindrical housing with a center hole and internal slots, an LED light-source assembly (heat sink, LED, support frame, top cover) positioned at the housing top with the LED centered in the top hole, a light-diverging subassembly that nests under the LED, and a power-supply device configured to deflect relative to the LED assembly to pass through a ceiling opening and then return to its original orientation so that a support bracket on the power supply abuts the ceiling. The cylinder also included mounting holes on its outer wall for latching an elastic plate and the fixed cylinder/diverger had outward buckles that engage internal slots.

Distinguishing feature: A power-supply assembly designed to bend/deflect to allow insertion through the ceiling opening and then spring back to engage a support bracket on the ceiling.

Novelty 3/5. LED downlights, heat-sink-mounted LED modules, and internal reflectors were already common; the distinctive element is the deflecting power-supply/retainer mechanism rather than the light source or housing itself.

Manufacturing

Die-cast or stamped aluminum heat sink; injection-molded thermoplastic cylinder and reflector parts; stamped steel or molded plastic clips/elastic plates; screw or snap assembly with hand assembly for electrical connection.

Materials: Sheet metal or die-cast aluminum heat sink, Thermoplastic (ABS or PC) cylindrical housing, Aluminum or polycarbonate light-diverging element, Spring steel or plastic elastic plates/brackets.

Manufacturability 4/5. Several molded and stamped parts plus a heat sink and clips; requires tooling for injection molds and die-casting but assembly is conventional and suitable for small-scale contract manufacturing.

Market demand

No demand check has been run for this patent. Likely search terms: recessed LED downlight retrofit, LED downlight with spring clip bracket, flush mount LED ceiling light. The links in the sidebar open these searches.

Buyers: Homeowners, small electrical contractors replacing or retrofitting ceiling lights.

Sourcing

Factories list related products that could be adapted. Listings show spring clip/retention concepts close to the described product, but explicit OEM customization options or explicit prices are not consistently visible. If you want, I can try to extract live price quotes by requesting quotes from these suppliers or explore additional listings that may publish price tiers.

Supplier prices are from public listings found by web search, quoted before customization, shipping and duties. Use them to decide whether to request a quotation.

Before manufacturing

No related continuation or divisional patents in force were found. Design patents, trademarks and unrelated patents may still cover the product.

None obvious; consider electrical safety certification (UL/ETL) and crowded retrofit downlight market.

About 1.5% of lapsed patents are later revived by their owners. This page is a research lead, not legal advice. Obtain a freedom-to-operate opinion before manufacturing.

Claim 1, as granted

1. A convenient-to-install LED downlight, comprising a cylinder, a light source device, a light diverging assembly, a cover assembly and a power supply device, wherein: the cylinder is a downwardly covered cylindrical object having an inwardly hollow bottom to form a containing space, a center hole formed at a center of a top of the cylinder, two or more slots formed on an inner surface of the top of the cylinder and disposed around the center hole, and two or more mounting holes formed on an outer wall of the cylinder and provided for latching an elastic plate; the light source device comprises a heat sink, an LED light source, a support frame and a top cover, wherein the heat sink is engaged with the top of the cylinder, wherein the LED light source is supported by the support frame and engaged with a bottom surface of the heat sink, wherein the LED light source stays in the center hole at the center of the top of the cylinder, wherein a top of the top cover has two erected engaging walls each having an engaging hole, and wherein the top cover is engaged with the heat sink; the light diverging assembly comprises a fixed cylinder and a light diverging element, wherein a top and a bottom of the fixed cylinder are inwardly hollow to form a containing space, wherein a shield wall is reserved at a bottom periphery of the fixed cylinder, wherein two or more buckles are extendedly outwardly from an outer wall of the top of the fixed cylinder, wherein the light diverging element is contained in the containing space of the fixed cylinder, wherein the bottom periphery of the fixed cylinder abuts the shield wall, wherein the fixed cylinder is installed into the containing space of the cylinder, and wherein each buckle of the fixed cylinder is passed through a corresponding slot of the cylinder to define a latching connection; the cover assembly comprises a fixing ring, a reflector and an elastic plate, wherein the fixing ring has a flat ring disk, a middle erected upwardly to form a vertical wall, and an interior penetrated to form a large through hole, wherein a support wall is formed at an external surface of the reflector, wherein a center of the reflector is penetrated to form a light output hole, wherein at least two opposite engaging walls are formed on the external surface of the reflector, wherein the elastic plate has a length and is locked onto one of the at least two opposite engaging walls, wherein the reflector is accommodated into a large through hole of the fixing ring, wherein the support wall supports a bottom edge of the vertical wall of the fixing ring, wherein both edges of the elastic plate are bent inwardly to abut the vertical wall of the fixing ring, wherein the cover assembly is inserted into the containing space of the cylinder, and wherein the joint between the flat ring disk of the fixing ring and the vertical wall is latched and fixed to a bottom edge of the cylinder; and the power supply device comprises a housing, a bottom cover, a drive power supply and a support bracket, wherein the housing is box-shaped, wherein a bottom surface of the housing is hollow, wherein a bottom of an end of the housing is partially withdrawn upwardly, wherein two sidewalls of the end of the housing have engaging holes for passing connecting elements to engage with the engaging holes of the two erected engaging walls of the top cover, wherein the bottom cover is engaged with the bottom surface of the housing, wherein the drive power supply is installed inside the housing, wherein the drive power supply is electrically coupled to the LED light source through an electric wire, wherein the support bracket is locked to a bottom surface of the bottom cover, wherein the power supply device is deflected upwardly by using the connecting elements engaged with the top cover as the axis, and wherein the power supply device is in an erected status with respect to the top cover.