Patent US3856419A successfully refreshed from Google Patents.
US3856419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-overlapping coating device
Assignee: Individual
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Filing: 1972-09-11
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Granted: 1974-12-24
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Expires: 1992-09-11
Abstract
Abstract A coating device is provided with a feed reservoir, a rectangular opening in the front wall of the reservoir, and a hinged plate biased into a position closing the opening. The hinged plate carries adjustable contact means on its outside face, which means when contacted by the work surface to be coated forces the plate to a desired open position to permit the coating material to flow out from the reservoir onto the work surface. The coating device is further provided with a projected or raised planar guiding surface on its front wall for accurately spacing the device relative to the work surface. The guiding surface is narrower than the width of the front wall to form offset spaces on either side of the guiding surface. The narrower projected or raised guide surface when moved over the work surface permits successive parallel coating strokes by the device without the edges of the front wall overlapping or contacting the coating material already applied to the work surface by the previous strokes.
Inventors
- 👤 I Levine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:29
CPC Classifications
G; G03; G03D; G03D15/00; G03D15/06; G03C; G03C1/00; G03C1/74
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
139 words
A liquid coating device comprising a body having a front wall and additional wall means forming a feeder reservoir, an opening means in the front wall communicating with the reservoir, a closure for the opening means normally closing the same, operating means to variably open said closure to permit flow of coating material onto the work surface to be coated, a doctor blade located on one side of said opening means and extending lengthwise across the width of the body, and a planar guiding and support means on and projecting from said body on a direction normal to said front wall and located entirely on the other side of said opening means, the dimension of said guide support means measured along the width of said body being less than the length of the doctor blade extending across the body.
Claim 2
Dependent Claim
139 words
A liquid coating device comprising a body having a front wall and additional wall means forming a feeder reservoir, an opening means in the front wall communicating with the reservoir, a closure for the opening means normally closing the same, operating means to variably open said closure to permit flow of coating material onto the work surface to be coated, a doctor blade located on one side of said opening means and extending lengthwise across the width of the body, and a planar guiding and support means on and projecting from said body on a direction normal to said front wall and located entirely on the other side of said opening means, the dimension of said guide support means measured along the width of said body being less than the length of the doctor blade extending across the body.
Claim 3
Dependent Claim
76 words
The coating device of claim 1, wherein the opening means is of generally rectangular configuration, the closure is a plate in the reservoir normally biased to a closing position, and the operating means comprise adjustable control means projecting from the outer side of the plate through the opening means and adapted to move the plate to open position by contact with the work surface upon placement of the guiding and support means against the work surface.
Claim 4
Dependent Claim
34 words
The coating device of claim 1, wherein the guiding and support means comprise a planar surface means on the front wall projecting in front of and on said other side of said opening means.
Claim 5
Dependent Claim
25 words
The coating device of claim 3, wherein the planar surface means is provided by a panel of the desired thickness bonded to the front wall.
Claim 6
Dependent Claim
29 words
The coating device of claim 3, wherein the planar surface means is provided by strips of material bonded to the front wall and presenting sufficient guiding and support surface.
Claim 7
Dependent Claim
57 words
The coating device of claim 1, wherein the body of the device comprises two sections, one housing the feeder reservoir and the doctor blade, and the other section being narrower than the top section, the front wall of the other section projecting below and past the opening means to thereby provide the planar, guiding and support means.
Claim 8
Dependent Claim
25 words
The coating device of claim 1, wherein the wall means provide additional reservoirs, and means for selectively interconnecting said additional reservoirs to the feeder reservoir.
Claim 9
Dependent Claim
47 words
The coating device of claim 7, wherein the means for selectively interconnecting the reservoirs comprises a manifold, a branch connecting said manifold to the interior of each reservoir, and a two-way valve in each branch to control communication between the manifold and the interior of each reservoir.
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) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |