US3976876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal control apparatus
Assignee: Individual
•
Filing: 1974-06-03
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Granted: 1976-08-24
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Expires: 1994-06-03
Abstract
Abstract Signal control apparatus which includes a control element in the form of a short section of fiber optic material which can be displaced by depression of a flexible plate or push button into alignment with adjoining sections of fiber optic material.
Inventors
- 👤 Dale C. Brocker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:06
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/26; G02B6/35; G02B6/3502; G02B6/3508; G01; G01L; G01L1/00; G01L1/14; G02B6/354; G02B6/3544; G02B6/3548; G02B6/3552; G02B6/3564; G02B6/3568; G02B6/3574; G02B6/3582; G02B6/3598
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
119 words
Signal control apparatus which comprises a light source, two spaced but aligned fixed fibre-optic sections arranged to receive light from said source, a movable fibre-optic section arranged for movement between axially-adjoining aligned and mis-aligned positions relative to said fixed fibre-optic sections, an actuating member connected to said movable fibre-optic section to effect motion thereof, light sensitive means aligned with said fixed fibre-optic sections for receiving light energy transmitted through said fixed and movable fibre-optic sections when they are aligned, a sealed housing containing said light source, said fibre-optic sections and said light receiving means, and having an opening therein, and said actuating member constituting a resilient member sealed at its periphery to said housing to close the opening therein.
Claim 2
Dependent Claim
119 words
Signal control apparatus which comprises a light source, two spaced but aligned fixed fibre-optic sections arranged to receive light from said source, a movable fibre-optic section arranged for movement between axially-adjoining aligned and mis-aligned positions relative to said fixed fibre-optic sections, an actuating member connected to said movable fibre-optic section to effect motion thereof, light sensitive means aligned with said fixed fibre-optic sections for receiving light energy transmitted through said fixed and movable fibre-optic sections when they are aligned, a sealed housing containing said light source, said fibre-optic sections and said light receiving means, and having an opening therein, and said actuating member constituting a resilient member sealed at its periphery to said housing to close the opening therein.
Claim 3
Dependent Claim
25 words
Signal control apparatus according to claim 1 which comprises spring means normally urging said resilient member and said movable fibre-optic section to its non-aligned position.
Claim 4
Dependent Claim
16 words
Signal control apparatus according to claim 1 wherein said light receiving means constituted a photoelectric cell.
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) | 1979-08-24 | 1980-02-23 | 1980-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-24 | 1984-02-23 | 1984-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-24 | 1988-02-23 | 1988-08-24 | $7700.00 | Window Closed / Lapsed |