US3614414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Work area illuminator
Assignee: Kirkman Laboratories Inc
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Filing: 1970-04-03
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Granted: 1971-10-19
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Expires: 1990-04-03
Abstract
Abstract A bifurcated illuminator supplies practically shadowless light to a work area in close proximity to a working tool. From a light source remote with respect to the tool, light rays are gathered and transmitted by fiber optic rods in bundles which extend along the tool shank and divide close to the tool. The bundles are shaped near their emitting ends to emit light directed at the work area of the tool.
Inventors
- 👤 Kenneth W Gores
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:17
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/0001; G02B6/0005; A; A61; A61C; A61C1/00; A61C1/08; A61C1/088; F; F21; F21W; F21W2131/00; F21W2131/20; F21W2131/202
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
114 words
A work area illuminator for tools of the nature of dental handpieces and the like, comprising: an elongated fiber optic light transmission system disposed longitudinally of a dental tool and having appreciable slimness relative the manually grasped portion thereof; a light source operable to activate said system and associated therewith remote from the working end of such dental tool; said light system fiber optics being bifurcated proximate the working end of the tool to divide transmitted light into two terminal emitter portions; and said two portions being extended in straddle relation to the working end of the dental tool and curved to direct two beams of light at a working area of such tool.
Claim 2
Dependent Claim
114 words
A work area illuminator for tools of the nature of dental handpieces and the like, comprising: an elongated fiber optic light transmission system disposed longitudinally of a dental tool and having appreciable slimness relative the manually grasped portion thereof; a light source operable to activate said system and associated therewith remote from the working end of such dental tool; said light system fiber optics being bifurcated proximate the working end of the tool to divide transmitted light into two terminal emitter portions; and said two portions being extended in straddle relation to the working end of the dental tool and curved to direct two beams of light at a working area of such tool.
Claim 3
Dependent Claim
18 words
The structure of claim 1 in which the fiber optic system is slidably secured to the dental tool.
Claim 4
Dependent Claim
21 words
The structure of claim 2 in which the fiber optic system is slidably secured to the dental tool by helical retainers.
Claim 5
Dependent Claim
16 words
The structure of claim 3 in which the helical retainers are formed of flat spring straps.
Claim 6
Dependent Claim
17 words
The structure of claim 1 in which the fiber optic system is protectively encased throughout its length.
Claim 7
Dependent Claim
27 words
The structure of claim 5 in which the fiber optic system is divided into two paths of light transmission from the light source to the emitting terminii.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-18 | 1975-04-19 | 1975-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-18 | 1979-04-19 | 1979-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-18 | 1983-04-19 | 1983-10-19 | $7700.00 | Window Closed / Lapsed |