IP Library Granted Patent US 6,843,967
Granted Patent B2
US 6,843,967 · App. 10/411,426 · Granted Jan 18, 2005

Curing unit

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Quick Facts
Patent No.
US 6,843,967
App. No.
10/411,426
Granted
Jan 18, 2005
Kind
B2
Abstract

A curing apparatus providing rapid curing by using light, pressure, pressure and light, or purge, pressure and light to cure resinous materials by application of energy from an external source to excite polymerization in a polymerizable system. A curing chamber is provided to house the polymerizable dental material. The apparatus utilizes light emitting diodes (LEDs) to radiate energy to polymerize the dental materials. The LEDs are positioned optimally within the curing apparatus to provide efficient, effective polymerization of the dental materials.

Claims (35)

1. An apparatus for curing a polymerizable dental material comprising:

an air-tight chamber for receiving the dental material therein;

a light source for supplying light to an interior of the air-tight chamber;

a gas inlet for receiving pressurized gas into the interior of the air-tight chamber from an independent gas source;

a processing means operatively associated with the light source and the gas source for controlling curing of the dental material by light and pressure within the air-tight chamber; and

a control means operatively associated with the processing means for receiving input from an operator relating to operation of the light source and the gas source;

wherein the light source comprises a plurality of LEDs positioned on the air-tight chamber.

2. The apparatus of claim 1 wherein the air-tight chamber comprises a base and a cover.

3. The apparatus of claim 2 wherein the plurality of LEDs are positioned on the base.

4. The apparatus of claim 2 wherein the plurality of LEDs are positioned on the cover.

5. The apparatus of claim 4 wherein the LEDs are mounted in the cover.

6. The apparatus of claim 4 wherein the LEDs are mounted uniformly on the cover.

7. The apparatus of claim 4 wherein the LEDs are mounted in selected areas on the cover.

8. The apparatus of claim 4 wherein the LEDs are mounted along a periphery of the cover.

9. The apparatus of claim 2 wherein the cover is transparent.

10. The apparatus of claim 2 wherein the cover comprises a reflective coating on an interior side.

11. The apparatus of claim 2 wherein the LEDs are positioned proximate the cover.

12. The apparatus of claim 11 wherein the LEDs rotate around a periphery of the cover.

13. An apparatus for curing a polymerizable dental material comprising:

a curing chamber for receiving the dental material therein;

a light source for supplying light to an interior of curing chamber;

a processing means operatively associated with the light source for controlling curing of the dental material by light within the curing chamber; and

a control means operatively associated with the processing means for receiving input from an operator relating to operation of the light source;

wherein the light source comprises a plurality of LEDs positioned on the curing chamber.

14. The apparatus of claim 13 wherein the curing chamber comprises a base and a cover.

15. The apparatus of claim 14 wherein the plurality of LEDs are positioned on the base.

16. The apparatus of claim 14 wherein the plurality of LEDs are positioned on the cover.

17. The apparatus of claim 16 wherein the LEDs are mounted in the cover.

18. The apparatus of claim 16 wherein the LEDs are mounted uniformly on the cover.

19. The apparatus of claim 16 wherein the LEDs are mounted in selected areas on the cover.

20. The apparatus of claim 16 wherein the LEDs are mounted along a periphery of the cover.

21. The apparatus of claim 14 wherein the cover is transparent.

22. The apparatus of claim 14 wherein the cover comprises a reflective coating an interior side.

23. The apparatus of claim 14 wherein the LEDs are positioned proximate the cover.

24. The apparatus of claim 14 wherein the LEDs rotate around the periphery of the cover.

Assignments (6)
RELEASE OF SECURITY INTEREST Recorded Aug 13, 2008
From: COHEN, GORDON S.; THE COHEN FAMILY TRUST PARTNERSHIP
To: PENTRON LABORATORY TECHNOLOGIES, LLC
Reel/Frame 021380/0295 →
AMENDMENT NO. 2 TO MORTGAGE AND SECURITY AGREEMENT DATED MARCH 9, 2005 AND AMENDED JULY 24, 2006 Recorded Nov 30, 2007
From: PENTRON LABORATORY TECHNOLOGIES, LLC
To: COHEN, GORDON S.; THE COHEN FAMILY TRUST PARTNERSHIP
Reel/Frame 020174/0742 →
AMENDMENT NO. 3 TO MORTGAGE AND SECURITY AGREEMENT DATED MARCH 9, 2005, AMENDED JULY 24, 2006 AND SECOND AMENDMENT DATED JUNE 15, 2007 Recorded Nov 30, 2007
From: PENTRON LABORATORY TECHNOLOGIES, LLC
To: COHEN, GORDON S.; THE COHEN FAMILY TRUST PARTNERSHIP
Reel/Frame 020174/0885 →
AMENDMENT TO MORTGAGE AND SECURITY AGREEMENT RECORDED AT REEL 015748 AND FRAME 0743 ON MARCH 9, 2005 Recorded Sep 29, 2006
From: PENTRON LABORATORY TECHNOLOGIES, LLC
To: COHEN, GORDON S.; THE COHEN FAMILY TRUST PARTNERSHIP
Reel/Frame 018323/0240 →
SECURITY AGREEMENT Recorded Mar 9, 2005
From: PENTRON LABORATORY TECHNOLOGIES, LLC
To: COHEN, GORDON S.; THE COHEN FAMILY TRUST PARTNERSHIP
Reel/Frame 015748/0743 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 26, 2003
From: CLARK, DANIEL P.
To: PENTRON LABORATORY TECHNOLOGIES, LLC
Reel/Frame 014226/0483 →