IP Library Granted Patent US 11,207,438
Granted Patent B2
US 11,207,438 · App. 15/175,255 · Granted Dec 28, 2021

Low wattage powered wax warmers

Inventor: Thomas P. Gasper (Germantown, WI)
Assignee: S. C. Johnson & Son, Inc.
A61L9/03A61L9/012H05B1/0252H05B3/24
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Quick Facts
Patent No.
US 11,207,438
App. No.
15/175,255
Granted
Dec 28, 2021
Kind
B2
Abstract

A wax warmer assembly includes a housing having an outermost edge defining an opening and an annular ridge below the outermost edge. The wax warmer assembly further includes a dish with a peripheral edge, a heater affixed to the dish, and a power cord in electrical communication with the heater. The heater is operable to only draw 10 Watts of power or less from a power source. Further, the dish is disposed in the opening of the housing and the peripheral edge of the dish engages with the annular ridge of the housing.

Claims (41)

1. A wax warmer assembly, comprising:

a housing including an outermost edge defining an opening and a circular, annular ridge below the outermost edge;

a dish including a flat center portion and a curved sidewall portion;

a heater directly affixed to the flat center portion of the dish; and

a power cord in electrical communication with the heater,

wherein the heater is operable to draw 10 Watts or less of power from a power source,

wherein the dish is disposed in the opening of the housing, and

wherein a peripheral end of the curved sidewall portion sealingly engages with the annular ridge of the housing.

2. The wax warmer assembly of claim 1 , wherein the dish is a metal dish.

3. The wax warmer assembly of claim 2 , wherein the heater is affixed to the dish by means of an adhesive.

4. The wax warmer assembly of claim 3 , wherein the adhesive is a self-adhesive film.

5. The wax warmer assembly of claim 3 , wherein the adhesive is a thermally conductive epoxy.

6. The wax warmer assembly of claim 1 , wherein the wax warmer assembly further comprises a wax melt for emitting a volatile material when heated on the dish.

7. The wax warmer assembly of claim 1 , wherein the heater is a stamped heater or a resistive ceramic block heater.

8. A wax warmer assembly, comprising:

a housing including an outermost edge defining an opening;

a plate disposed in the opening of the housing for directly receiving a wax melt, the plate having a curved sidewall portion with a peripheral end positioned below the outermost edge of the housing, the peripheral end being configured to snap-fit between a ridge of the housing and a curved wall of the housing;

a heater directly affixed to the plate; and

a power cord in electrical communication with the heater,

wherein a total power draw of the wax warmer assembly is at most 10 Watts, and

wherein the peripheral end of the curved sidewall portion sealingly engages with the ridge of the housing.

9. The wax warmer assembly of claim 8 , wherein the heater is a stamped heater or a resistive ceramic block heater.

10. The wax warmer assembly of claim 9 , wherein a maximum of 5 volts is supplied to the heater.

11. The wax warmer assembly of claim 10 , wherein the plate reaches a maximum temperature of about 75° C.

12. The wax warmer assembly of claim 10 , wherein the wax warmer assembly further includes a wax melt with a mass of about 0.011 kg that is placed on the plate.

13. The wax warmer assembly of claim 12 , wherein the wax melt has a melting time of about 45 minutes.

14. The wax warmer assembly of claim 13 , wherein the wax melt reaches a maximum temperature of about 68° C.

15. A wax warmer assembly, comprising:

a housing having an outermost edge;

a dish having an interior volume defined by an inner surface and including a bottom surface with a bottom surface area, the bottom surface including a flat center portion and a curved sidewall portion with a peripheral end positioned below the outermost edge of the housing, the peripheral end being secured between a ridge of the housing and a curved wall of the housing;

a heater directly adhered to the bottom surface of the dish and defining a contact area therewith; and

a power cord,

wherein the power cord is adapted to be received by a power source;

wherein the heater draws no more than 10 Watts of power;

wherein the contact area is about 4% to about 64% of the bottom surface area of the dish; and

wherein the bottom surface of the dish is disposed within the housing.

16. The wax warmer assembly of claim 15 , wherein the flat center portion has a surface area and the curved sidewall portion has a different surface area.

17. The wax warmer assembly of claim 16 , wherein the contact area is about 5% to about 125% of the surface area of the flat center portion.

18. The wax warmer assembly of claim 15 , wherein the heater is directly affixed to the flat center portion and the curved sidewall portion of the dish by means of an adhesive.

19. The wax warmer assembly of claim 15 , wherein the heater is a stamped heater or a resistive ceramic block heater.

20. The wax warmer assembly of claim 15 further including a wax melt for emitting a volatile material when in contact with the dish.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 7, 2016
From: GASPER, THOMAS P.
To: S. C. JOHNSON & SON, INC.
Reel/Frame 038835/0589 →
Continuity (2)
Continuation In Part 14722387 · May 27, 2015
Related Publication 20160346419A1 · Dec 1, 2016