Patent US5420768A successfully refreshed from Google Patents.
US5420768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable led photocuring device
Assignee: Lumen Dynamics Group Inc
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Filing: 1993-09-13
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Granted: 1995-05-30
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Expires: 2013-09-13
Abstract
Abstract The portable photocuring device has a light emission diodes matrix which can be energized with battery power to provide optical power for photocuring curing purposes. The diodes can be easily controlled and adjusted to emit light of selected colors and intensity with complex instrumentation.
Inventors
- 👤 John Kennedy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:05
CPC Classifications
A; A61; A61C; A61C19/00; A61C19/003; A61C19/004; A61N; A61N5/00; A61N5/06; A61N5/0613; A61N5/062; H; H05; H05B; H05B45/00; H05B45/20; H05B45/22; H05B45/24; A61C2204/00; A61C2204/002; A61N2005/0635; A61N2005/0643; A61N2005/0644; A61N2005/065; A61N2005/0651; A61N2005/0652; G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; G02B6/4298; Y; Y10; Y10S; Y10S362/00; Y10S362/80
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
199 words
A hand-held portable photocuring device comprising, a portable housing having a front end and rear end, a light emitting semiconducting means having a matrix of a plurality of light emitting diode means mounted at said front end, said light emitting diode means being operative to emit in combination a light energy suitable for photocuring, a power means coupled to said semiconducting means and operative to provide the electrical power for energizing said plurality of light emitting diode means to emit in combination said light energy, control means connected to said semiconducting means and said power means, and operative to vary the level of said light energy, a mounting means provided at said front end of said housing, a tubular light guide member mounted to said mounting means, said light guide member being operative to direct said light energy generated from said light emitting diode means to a photocuring location disposed adjacent to a distal free end of said light guide member, a transparent cap member mounted at said front end and covering over said light emitting diode means, a heat sink means disposed juxtaposed to said semiconducting means and being operative to dissipate heat generated in said semiconducting means.
Claim 2
Dependent Claim
199 words
A hand-held portable photocuring device comprising, a portable housing having a front end and rear end, a light emitting semiconducting means having a matrix of a plurality of light emitting diode means mounted at said front end, said light emitting diode means being operative to emit in combination a light energy suitable for photocuring, a power means coupled to said semiconducting means and operative to provide the electrical power for energizing said plurality of light emitting diode means to emit in combination said light energy, control means connected to said semiconducting means and said power means, and operative to vary the level of said light energy, a mounting means provided at said front end of said housing, a tubular light guide member mounted to said mounting means, said light guide member being operative to direct said light energy generated from said light emitting diode means to a photocuring location disposed adjacent to a distal free end of said light guide member, a transparent cap member mounted at said front end and covering over said light emitting diode means, a heat sink means disposed juxtaposed to said semiconducting means and being operative to dissipate heat generated in said semiconducting means.
Claim 3
Dependent Claim
29 words
A hand-held portable photocuring device according to claim 1 wherein said light emitting diode means is capable of emitting light energy having a level of at lest 470 nanometers.
Claim 4
Dependent Claim
21 words
A hand-held portable photocuring device according to claim 2 wherein said light guide means is removably mounted to said mounting means.
Claim 5
Dependent Claim
49 words
A hand-held portable photocuring device according to claim 3 including a driver means connected to said semiconducting means and said control means and being operative to actuate said light emitting diode means to generate said light energy, and said power means is a rechargeable battery disposed in said housing.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-05-29 | 1998-11-28 | 1999-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-05-29 | 2002-11-28 | 2003-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-05-29 | 2006-11-28 | 2007-05-30 | $7700.00 | Window Closed / Lapsed |