Patent US3909812A successfully refreshed from Google Patents.
US3909812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flashing indicator apparatus
Assignee: JEMCO ENGINEERING Co
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Filing: 1974-08-28
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Granted: 1975-09-30
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Expires: 1994-08-28
Abstract
Abstract A flashing indicator. The indicator includes an indicator light, a second light having a predetermined firing potential, a mechanism for periodically firing the second light, and a transistor. Firing of the second light causes the transistor to conduct and electrically short the indicator light. The periodic nature of the firing results in a flashing indicator light.
Inventors
- 👤 Walter Satorius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:41
CPC Classifications
G; G01; G01K; G01K3/00; G01K3/005; G01K1/00; G01K1/02; H; H05; H05B; H05B3/00; H05B3/68; H05B3/74; H05B3/746
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
125 words
A flashing indicator apparatus for indicating a predetermined condition comprising, in combination: a power supply; indicator light means visible to an operator; second light means having a predetermined firing potential, said second light means being operable in a first state whenever the voltage across said second light means exceeds said predetermined firing potential; means for sensing said predetermined condition and connecting said indicator light means to said power supply whenever said predetermined condition exists; and transistor means having an operable state for electrically shorting said indicator light means, said transistor means being interconnected with and responsive to said light means, said transistor means being in said operable state whenever said second light means is in said first state, whereby said indicator light means intermittently flashes.
Claim 2
Dependent Claim
125 words
A flashing indicator apparatus for indicating a predetermined condition comprising, in combination: a power supply; indicator light means visible to an operator; second light means having a predetermined firing potential, said second light means being operable in a first state whenever the voltage across said second light means exceeds said predetermined firing potential; means for sensing said predetermined condition and connecting said indicator light means to said power supply whenever said predetermined condition exists; and transistor means having an operable state for electrically shorting said indicator light means, said transistor means being interconnected with and responsive to said light means, said transistor means being in said operable state whenever said second light means is in said first state, whereby said indicator light means intermittently flashes.
Claim 3
Dependent Claim
44 words
A flashing indicator apparatus as claimed in claim 1 wherein said firing means includes a capacitor in parallel combination with said second light means, said capacitor having a capacitor voltage, said second light means firing whenever said capacitor voltage substantially equals said firing potential.
Claim 4
Dependent Claim
29 words
A flashing indicator apparatus as claimed in claim 2 wherein said sensing means connects said capacitor to said power supply whenever said predetermined condition exists to charge said capacitor.
Claim 5
Dependent Claim
19 words
A flashing indicator apparatus as claimed in claim 1 wherein said second light means includes a neon gas bulb.
Claim 6
Dependent Claim
29 words
A flashing indicator apparatus as claimed in claim 1 wherein said sensing means includes a photocell and a light source for sensing the state of fullness of a container.
Claim 7
Dependent Claim
19 words
An apparatus as claimed in claim 1 wherein said sensing means includes a thermostatic switch for sensing a temperature.
Claim 8
Dependent Claim
194 words
A flashing indicator apparatus for use in connection with a ceramic top infrared radiant range including a burner element, said burner element being operable in a first de-energized state and a second energized state, said burner element having an element temperature, comprising in combination: a power supply; indicator light means visible to an operator; second light means having a predetermined firing potential, said second light means being operable in a first state whenever the voltage across said second light means exceeds said firing potential; means for intermittently firing said second light means; means for interconnecting said indicator light means and said power supply whenever said burner element is in said second energized state, whereby said indicator light means is operable; means for sensing said element temperature and connecting said indicator light means to said power supply whenever said element temperature exceeds a predetermined temperature; and transistor means having an operable state for shorting said indicator light means, said transistor means being interconnected with and responsive to said second light means, said transistor means being in said operable state whenever said second light means is in said first state, whereby said indicator light intermittently flashes.
Claim 9
Dependent Claim
194 words
A flashing indicator apparatus for use in connection with a ceramic top infrared radiant range including a burner element, said burner element being operable in a first de-energized state and a second energized state, said burner element having an element temperature, comprising in combination: a power supply; indicator light means visible to an operator; second light means having a predetermined firing potential, said second light means being operable in a first state whenever the voltage across said second light means exceeds said firing potential; means for intermittently firing said second light means; means for interconnecting said indicator light means and said power supply whenever said burner element is in said second energized state, whereby said indicator light means is operable; means for sensing said element temperature and connecting said indicator light means to said power supply whenever said element temperature exceeds a predetermined temperature; and transistor means having an operable state for shorting said indicator light means, said transistor means being interconnected with and responsive to said second light means, said transistor means being in said operable state whenever said second light means is in said first state, whereby said indicator light intermittently flashes.
Claim 10
Dependent Claim
51 words
A flashing apparatus as claimed in claim 7 wherein said firing means includes a capacitor in parallel combination with said second light means, said sensing means connecting said capacitor to said power supply whenever said element temperature exceeds said predetermined temperature, whereby said capacitor changes and fires said second light means.
Claim 11
Dependent Claim
19 words
A flashing indicator apparatus as claimed in claim 7 wherein said second light means is a neon gas bulb.
Claim 12
Dependent Claim
36 words
A flashing indicator apparatus as claimed in claim 7 wherein said sensing means includes a thermostatic switch in communication with said burner element, said thermostatic switch closing whenever said element temperature exceeds a predetermined threshold temperature.
Claim 13
Dependent Claim
17 words
A flashing indicator apparatus as claimed in claim 10 wherein said predetermined threshold temperature is approximately 120*F.
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) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |