Patent US3126300A successfully refreshed from Google Patents.
US3126300A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for coating the inner surfaces
Assignee: —
•
Filing: —
•
Granted: 1964-03-24
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Expires: 1981-03-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:53
CPC Classifications
B; B05; B05B; B05B5/00; B05B5/08; B05B5/12; H; H01; H01J; H01J9/00; H01J9/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
IN A DEVICE FOR COATING THE INNER SURFACES OF BULBS FOR INCANDESCENT LAMPS AND DISCHARGE TUBES WITH A POWDER, HAVING MEMBERS FOR HOLDING A BULB WHICH IS TO BE COATED, A NOZZLE HAVING AT LEAST TWO CHANNELS ADAPTED TO BE CONNECTED TO A FINE POWDER SUPPLY IN A GAS ABOVE ATMOSPHERIC PRESSURE WHICH NOZZLE IS PROVIDED WITH A FIRST ELECTRODE ADAPTED TO BE INTRODUCED INTO THE NECK OF A BULB, AND A SECOND ELECTRODE ARRANGED EXTERNALLY ALONG THE OUTER SURFACE OF THE BULB AND EXHIBITING A POTENTIAL DIFFERENCE RELATIVE TO THE FIRST ELECTRODE FOR COATING THE BULB TO BE COATED, THE COMBINATION COMPRISING AT LEAST A NUMBER OF THE CHANNELS IN THE NOZZLE EACH HAVING AN OUTFLOW APERTURE FOR SAID FINE POWDER, THE MAIN DIRECTIONS OF AT LEAST THOSE PARTS OF THE CHANNELS WHICH LIE NEAR THE OUTFLOW APERATURES FOR THE POWDER BEING CONVERGENT IN THE DIRECTION OF SPRAYING.
Claim 2
Dependent Claim
149 words
IN A DEVICE FOR COATING THE INNER SURFACES OF BULBS FOR INCANDESCENT LAMPS AND DISCHARGE TUBES WITH A POWDER, HAVING MEMBERS FOR HOLDING A BULB WHICH IS TO BE COATED, A NOZZLE HAVING AT LEAST TWO CHANNELS ADAPTED TO BE CONNECTED TO A FINE POWDER SUPPLY IN A GAS ABOVE ATMOSPHERIC PRESSURE WHICH NOZZLE IS PROVIDED WITH A FIRST ELECTRODE ADAPTED TO BE INTRODUCED INTO THE NECK OF A BULB, AND A SECOND ELECTRODE ARRANGED EXTERNALLY ALONG THE OUTER SURFACE OF THE BULB AND EXHIBITING A POTENTIAL DIFFERENCE RELATIVE TO THE FIRST ELECTRODE FOR COATING THE BULB TO BE COATED, THE COMBINATION COMPRISING AT LEAST A NUMBER OF THE CHANNELS IN THE NOZZLE EACH HAVING AN OUTFLOW APERTURE FOR SAID FINE POWDER, THE MAIN DIRECTIONS OF AT LEAST THOSE PARTS OF THE CHANNELS WHICH LIE NEAR THE OUTFLOW APERATURES FOR THE POWDER BEING CONVERGENT IN THE DIRECTION OF SPRAYING.
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) | 1967-03-24 | 1967-09-23 | 1968-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-24 | 1971-09-23 | 1972-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-24 | 1975-09-23 | 1976-03-24 | $7700.00 | Window Closed / Lapsed |