US3563202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mobile vbaporative firing source
Assignee: Pennwalt Corp
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Filing: 1969-06-25
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Granted: 1971-02-16
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Expires: 1989-06-25
Abstract
Abstract Apparatus for evaporatively coating a continuously moving strip comprising a plurality of boats which are filled with a measured quantity of evaporative material at a dispensing station and transported through a vacuum chamber in spaced disposition with the strip. The material is fired from the boats as they pass over stationary heating elements whereby a uniform coating on the substrate is achieved.
Inventors
- 👤 Thomas Mackrael
- 👤 William E Welch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:06
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/56; C23C14/562; C23C14/24; C23C14/246
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
72 words
Apparatus for continuously evaporating material into a moving web comprising: a vacuum chamber; conveying means for carrying the web through the vacuum chamber at a predetermined speed; a plurality of vessels containing material to be evaporated; means for transporting said vessels through said chamber in spaced disposition from said conveying means and at a second predetermined speed; and means for heating said vessels to evaporate the material therefrom upon the moving web.
Claim 2
Dependent Claim
72 words
Apparatus for continuously evaporating material into a moving web comprising: a vacuum chamber; conveying means for carrying the web through the vacuum chamber at a predetermined speed; a plurality of vessels containing material to be evaporated; means for transporting said vessels through said chamber in spaced disposition from said conveying means and at a second predetermined speed; and means for heating said vessels to evaporate the material therefrom upon the moving web.
Claim 3
Dependent Claim
25 words
The apparatus of claim 1 wherein said means for heating comprises a plurality of longitudinally spaced stationary heating elements oriented below said means for transporting.
Claim 4
Dependent Claim
14 words
The apparatus of claim 2 wherein said heating elements are individually controlled for temperature.
Claim 5
Dependent Claim
16 words
The apparatus of claim 3 wherein said means for transporting constitutes an intermittently actuated endless conveyor.
Claim 6
Dependent Claim
24 words
The apparatus of claim 4 wherein said endless conveyor supports the vessels directly over respective heating elements during the dwell periods of intermittent actuation.
Claim 7
Dependent Claim
25 words
The apparatus of claim 5 including means for successively loading the vessels with the material prior to subjecting the vessels to said means for heating.
Claim 8
Dependent Claim
23 words
The apparatus of claim 6 wherein said means for successively loading comprises a metering dispenser in timed disposition with said means for transporting.
Claim 9
Dependent Claim
13 words
The apparatus of claim 7 wherein the metering dispenser comprises a star wheel.
Claim 10
Dependent Claim
20 words
The apparatus of claim 1 wherein said means for transporting moves in substantially the same direction as said conveying means.
Claim 11
Dependent Claim
36 words
The apparatus of claim 2 wherein the speed of said conveying means and said means for transporting is adjustable and wherein the temperature of the vessels may be controlled to vary the thickness of the deposition.
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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |