US4144531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drowsiness detecting apparatus
Assignee: Individual
•
Filing: 1977-10-12
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Granted: 1979-03-13
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Expires: 1997-10-12
Abstract
Abstract A safety apparatus for detecting an individual becoming drowsy is provided comprising a wave emitter mounted on an eyeglasslike frame for emitting a wave along a path directed to pass close to the individual's eyeball without impinging the latter such that said wave is interrupted by the eyelashes when the eyelid is quivering, and detecting means on the frame for generating a signal in response to the wave being interrupted. Signalling means is provided to produce an alarm signal a predetermined time after the last eyelid quivering.
Inventors
- 👤 Henricus J. Anbergen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:35
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/103; A61B5/11; A61B5/1103; A61M; A61M21/00; G; G02; G02C; G02C11/00; G08; G08B; G08B21/00; G08B21/02; G08B21/06; A61B2503/00; A61B2503/20; A61B2503/22; A61B5/68; A61B5/6801; A61B5/6802; A61B5/6803; A61B5/6813; A61B5/6814; A61B5/6821
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
165 words
A safety apparatus for detecting an individual becoming drowsy comprising: (a) a frame similar to an eyeglass frame; (b) wave emitter means mounted on the frame for emitting a wave along a path directed to pass close to the individual's eyeball without impinging the latter when the frame is carried on the nose of the individual like an eyeglass frame such that said wave is interrupted by the eyelashes when the eyelid is quivering; (c) detector means mounted on the frame for being impinged by said wave and for generating a signal in response to said wave being interrupted; (d) frequency generator means for generating a control signal; (e) counter means connected to be advanced by said control signal and to be reset in response to each signal from said detector means, said counter means being further connected for generating a warning signal in response to reaching a predetermined count; and (f) alarm means connected to be actuated by said warning signal from the counter.
Claim 2
Dependent Claim
165 words
A safety apparatus for detecting an individual becoming drowsy comprising: (a) a frame similar to an eyeglass frame; (b) wave emitter means mounted on the frame for emitting a wave along a path directed to pass close to the individual's eyeball without impinging the latter when the frame is carried on the nose of the individual like an eyeglass frame such that said wave is interrupted by the eyelashes when the eyelid is quivering; (c) detector means mounted on the frame for being impinged by said wave and for generating a signal in response to said wave being interrupted; (d) frequency generator means for generating a control signal; (e) counter means connected to be advanced by said control signal and to be reset in response to each signal from said detector means, said counter means being further connected for generating a warning signal in response to reaching a predetermined count; and (f) alarm means connected to be actuated by said warning signal from the counter.
Claim 3
Dependent Claim
69 words
An apparatus according to claim 1, further comprising: (a) reflex cell means mounted on said frame for reflecting the wave from said emitter means; (b) reflecting means mounted on said frame for reflecting the wave from said reflex cell means back to said reflex cell means along a path passing close to the individual's eyeball such that said wave is interrupted by the eyelashes when the eyelid is quivering.
References Cited (Backward Citations)
US2726380A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-03-12 | 1982-09-11 | 1983-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-12 | 1986-09-11 | 1987-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-12 | 1990-09-11 | 1991-03-13 | $7700.00 | Window Closed / Lapsed |