US3877418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for coating metallic strips
Assignee: GTE Sylvania Inc
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Filing: 1974-08-22
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Granted: 1975-04-15
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Expires: 1994-08-22
Abstract
Abstract There is disclosed an apparatus and method for applying a relatively thin and substantially uniform coating of photosensitive material to at least one side of a substantially vertically oriented metallic strip and for substantially drying said photosensitive material thereon as said metallic strip moves in a substantially horizontal direction along a predetermined path. Drying of the photosensitive coating in order to achieve uniformity is accomplished in a substantially progressive manner whereby the upper portion of the strip is substantially dried before the lower portion.
Inventors
- 👤 Kenneth H Shaner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:40
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/16; G03F7/168; Y; Y10; Y10S; Y10S430/00; Y10S430/136
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
168 words
An apparatus for applying a relatively thin and substantially uniform coating of photosensitive material to at least one side of a substantially vertically oriented metallic strip and for substantially drying said photosensitive material thereon as said metallic strip moves in a substantially horizontal direction along a predetermined path, said apparatus comprising: means for supplying a substantially vertically oriented metallic strip to said apparatus in a substantially horizontal direction along a predetermined path, said strip having at least one side having an upper and a lower portion; coating means for applying a relatively thin coating of photosensitive material to said side of said metallic strip in a manner whereby said coating will flow substantially downward and cover said upper and lower portions; and drying means angularly positioned with regard to said horizontal direction of travel of said metallic strip for drying said coating in a substantially progressive manner whereby said coating on said upper portion of said side will be substantially dried before said coating on said lower portion.
Claim 2
Independent Claim
168 words
An apparatus for applying a relatively thin and substantially uniform coating of photosensitive material to at least one side of a substantially vertically oriented metallic strip and for substantially drying said photosensitive material thereon as said metallic strip moves in a substantially horizontal direction along a predetermined path, said apparatus comprising: means for supplying a substantially vertically oriented metallic strip to said apparatus in a substantially horizontal direction along a predetermined path, said strip having at least one side having an upper and a lower portion; coating means for applying a relatively thin coating of photosensitive material to said side of said metallic strip in a manner whereby said coating will flow substantially downward and cover said upper and lower portions; and drying means angularly positioned with regard to said horizontal direction of travel of said metallic strip for drying said coating in a substantially progressive manner whereby said coating on said upper portion of said side will be substantially dried before said coating on said lower portion.
Claim 3
Dependent Claim
37 words
The apparatus according to claim 1 wherein said coating means comprises at least one nozzle member adapted for providing a continuous flow of said photosensitive material to the uppermost portion of said upper portion of said side.
Claim 4
Dependent Claim
27 words
The apparatus according to claim 1 wherein said angularly positioned drying means comprises at least one heater means positioned substantially adjacent said side of said metallic strip.
Claim 5
Dependent Claim
48 words
The apparatus according to claim 3 wherein said heater means includes first and second opposing ends, said first end positioned relative to said upper portion of said side of said metallic strip, said second end positioned relative to said lower portion of said side of said metallic strip.
Claim 6
Dependent Claim
50 words
The apparatus according to claim 4 wherein said coating means comprises at least one nozzle member adapted for providing a continuous flow of said photosensitive material to the uppermost portion of said upper portion of said side, said nozzle member positioned immediately adjacent said first end of said heater means.
Claim 7
Dependent Claim
17 words
The apparatus according to claim 3 wherein said heater means is a low temperature infrared heater member.
Claim 8
Dependent Claim
38 words
The apparatus according to claim 3 wherein said angularly positioned heater means is positioned at an angle within the range of from about 2* to about 20* to said substantially horizontal direction of travel of said metallic strip.
Claim 9
Dependent Claim
60 words
The apparatus according to claim 3 wherein said angularly positioned drying means comprises first and second heater means positioned substantially adjacent said side of said strip, said first heater means positioned relative to said upper portion of said side of said metallic strip, said second heater means positioned relative to said lower portion of said side of said metallic strip.
Claim 10
Dependent Claim
37 words
The apparatus according to claim 8 wherein said first heater means is positioned at an angle within the range of from about 2* to about 5* to said substantially horizontal direction of travel of said metallic strip.
Claim 11
Dependent Claim
36 words
The apparatus according to claim 9 wherein said second heater means in positioned at an angle within the range of from about 2* to about 15* to said substantially horizontal direction of travel of said strip.
Claim 12
Dependent Claim
19 words
The apparatus according to claim 8 wherein said first and second heater means are low temperature infrared heater members.
Claim 13
Independent Claim
159 words
A method for applying a relatively thin and substantially uniform coating of photosensitive material to at least one side of a substantially vertically oriented metallic strip having an upper and a lower portion and for substantially drying said photosensitiVe material thereon as said metallic strip moves in substantially horizontal direction, said method comprising: continuously supplying a moving substantially vertically oriented metallic strip having at least one side having an upper and lower portion in a substantially horizontal direction along a predetermined path; applying a relatively thin coating of photosensitive material to said side of said metallic strip in a manner whereby said coating will flow substantially downward along said side of said metallic strip and cover said upper and lower portions and thereafter substantially drying said coating on said side of said strip in a substantially progressive manner whereby said coating on said upper portion of said side will be substantially dried before said coating on said lower portion.
Claim 14
Independent Claim
159 words
A method for applying a relatively thin and substantially uniform coating of photosensitive material to at least one side of a substantially vertically oriented metallic strip having an upper and a lower portion and for substantially drying said photosensitiVe material thereon as said metallic strip moves in substantially horizontal direction, said method comprising: continuously supplying a moving substantially vertically oriented metallic strip having at least one side having an upper and lower portion in a substantially horizontal direction along a predetermined path; applying a relatively thin coating of photosensitive material to said side of said metallic strip in a manner whereby said coating will flow substantially downward along said side of said metallic strip and cover said upper and lower portions and thereafter substantially drying said coating on said side of said strip in a substantially progressive manner whereby said coating on said upper portion of said side will be substantially dried before said coating on said lower portion.
Claim 15
Dependent Claim
13 words
The method according to claim 12 wherein said photosensitive material is dichromated glue.
Claim 16
Dependent Claim
32 words
The method according to claim 13 wherein said metallic strip continuously moves along said predetermined path at a rate of from about 30 inches per minute to about 200 inches per minute.
Claim 17
Dependent Claim
24 words
The method according to claim 14 wherein said dichromated glue has a specific gravity within the range of from about 1.025 to about 1.060.
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) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |