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US3249087A
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Controlled vapor shielding device for metallizing apparatus
Assignee: AT&T Inc
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Filing: 1962-07-20
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Granted: 1966-05-03
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Expires: 1982-07-20
Abstract
No abstract record available.
Inventors
- 👤 Jr George P Mcgraw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:42
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/56; C23C14/562
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
IN A METALLIZING APPARATUS HAVING: A CHAMBER; A METAL VAPORIZER IN SAID CHAMBER; MEANS FOR SUPPORTING A SUPPLY OF WEB IN SAID CHAMBER; TAKE-UP MEANS IN SAID CHAMBER FOR WINDING THE METALLIZED WEB THEREON; AND MEANS IN SAID CHAMBER FOR GUIDING THE WEB FROM THE SUPPLY THEREOF PAST THE VAPORIZER ONTO SAID TAKE-UP MEANS; THE COMBINATION THEREWITH OF: A SHIELD IN SAID CHAMBER MOVABLE TO A FORWARD POSITION BETWEEN THE VAPORIZER AND THE WEB FOR INTERCEPTING THE VAPORIZED MATERIAL; MEANS IN SAID CHAMBER FOR ACTUATING SAID SHIELD TO THE FORWARD POSITION AND A RETRACTED POSITION; AND CONTROL MEANS IN SAID CHAMBER OPERABLE WHEN THE SUPPLY OF WEB APPROACHES DEPLETION FOR RENDERING SAID ACTUATING MEANS OPERATIVE TO MOVE SAID SHIELD TO THE FORWARD POSITION.
Claim 2
Dependent Claim
123 words
IN A METALLIZING APPARATUS HAVING: A CHAMBER; A METAL VAPORIZER IN SAID CHAMBER; MEANS FOR SUPPORTING A SUPPLY OF WEB IN SAID CHAMBER; TAKE-UP MEANS IN SAID CHAMBER FOR WINDING THE METALLIZED WEB THEREON; AND MEANS IN SAID CHAMBER FOR GUIDING THE WEB FROM THE SUPPLY THEREOF PAST THE VAPORIZER ONTO SAID TAKE-UP MEANS; THE COMBINATION THEREWITH OF: A SHIELD IN SAID CHAMBER MOVABLE TO A FORWARD POSITION BETWEEN THE VAPORIZER AND THE WEB FOR INTERCEPTING THE VAPORIZED MATERIAL; MEANS IN SAID CHAMBER FOR ACTUATING SAID SHIELD TO THE FORWARD POSITION AND A RETRACTED POSITION; AND CONTROL MEANS IN SAID CHAMBER OPERABLE WHEN THE SUPPLY OF WEB APPROACHES DEPLETION FOR RENDERING SAID ACTUATING MEANS OPERATIVE TO MOVE SAID SHIELD TO THE FORWARD POSITION.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |