US5170128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for detecting a sufficient glue coating of a paper strip
Assignee: DAT CIGARETTENFABRIKEN GmbH
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Filing: 1990-03-03
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Granted: 1992-12-08
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Expires: 2010-03-03
Abstract
Abstract A device, for detecting a sufficient glue coating on a first surface of a paper strip to be adhesively bonded in a cigarette machine, includes a sliding plate having a plate surface engaging a second surface of the paper strip, opposite to the first surface, and over which the paper strip runs in a first direction. A plurality of capacitive sensors, for detecting presence of moisture in the glue coating, on the first surface of the paper strip, are directed toward the second surface of the paper strip, are mounted in recesses in the sliding plate and are arranged in a row extending transversely to the first direction. A control is coupled to the sensors for evaluating signals emitted from the sensors and for emitting a fault signal for controlling the cigarette machine when the moisture sensed in the glue coating is insufficient.
Inventors
- 👤 Heinz Masurat
- 👤 Horst Gaisser
- 👤 Meinhard Meyer
- 👤 Ingo Pautke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:34
CPC Classifications
B; B05; B05C; B05C1/00; B05C1/04; B05C1/08; B05C1/086; B05C1/0865; A; A24; A24C; A24C5/00; A24C5/47; A24C5/471; A24C5/472; G; G01; G01N; G01N33/00; G01N33/34; G01N33/346
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
166 words
A device for detecting a sufficient glue coating on a first surface of a paper strip to be adhesively bonded in a cigarette machine, comprising: a sliding plate having a plate surface engaging a second surface of the paper strip, opposite to the first surface, and over which the paper strip runs in a first direction, said plate surface having groove-shaped channels oriented at angles of between 10 degrees and 80 degrees relative to said first direction; a plurality of capacitive sensors, for detecting presence of moisture in the glue coating on the first surface of the paper strip, directed toward the second surface of the paper strip, mounted in recesses in said plate surface of said sliding plate and arranged in a row extending transversely to said first direction; and a control means coupled to said sensors for evaluating signals emitted from said sensors and for emitting a fault signal for controlling the cigarette machine when the moisture sensed in the glue coating is insufficient.
Claim 2
Independent Claim
166 words
A device for detecting a sufficient glue coating on a first surface of a paper strip to be adhesively bonded in a cigarette machine, comprising: a sliding plate having a plate surface engaging a second surface of the paper strip, opposite to the first surface, and over which the paper strip runs in a first direction, said plate surface having groove-shaped channels oriented at angles of between 10 degrees and 80 degrees relative to said first direction; a plurality of capacitive sensors, for detecting presence of moisture in the glue coating on the first surface of the paper strip, directed toward the second surface of the paper strip, mounted in recesses in said plate surface of said sliding plate and arranged in a row extending transversely to said first direction; and a control means coupled to said sensors for evaluating signals emitted from said sensors and for emitting a fault signal for controlling the cigarette machine when the moisture sensed in the glue coating is insufficient.
Claim 3
Dependent Claim
25 words
A device according to claim 1 wherein said sliding plate is curved in said first direction with a radius of curvature greater than 50 centimeters.
Claim 4
Dependent Claim
13 words
A device according to claim 1 wherein said angles are about 45 degrees.
Claim 5
Dependent Claim
23 words
A device according to claim 1 wherein said sliding plate comprises a plurality of suction connections across a width of the paper strip.
Claim 6
Dependent Claim
23 words
A device according to claim 4 wherein said suction connections open into said groove-shaped channels in said plate surface of said sliding plate.
Claim 7
Dependent Claim
15 words
A device according to claim 1 wherein said sliding plate comprises a sharp run-on edge.
Claim 8
Dependent Claim
40 words
A device according to claim 1 wherein said sensors are arranged at a distance below said plate surface of said sliding plate; and wherein a dielectric material is introduced between said sensors and said plate surface of said sliding plate.
Claim 9
Dependent Claim
63 words
A device according to claim 1 wherein the paper strip is filter cover paper on which the glue coating is applied in a discontinuous, recurring pattern; and wherein said control means comprises a time frame with a specific segment duration which is predetermined, said fault signal being generated when a sufficient moisture content cannot be detected at an end of a time-frame segment.
Claim 10
Dependent Claim
17 words
A device according to claim 8 wherein the time-frame segments have lengths dependent on cigarette machine speed.
Claim 11
Dependent Claim
197 words
A cigarette forming machine, comprising: glue applicator means for applying a glue coating on a first surface a filter paper strip to be adhesively bonded about filters and cigarettes; a sliding plate having a plate surface engaging a second surface of the filter paper strip, opposite to the first surface, and over which the filter paper strip runs in a first direction, said plate surface having groove-shaped channels oriented at angles of between 10 degrees and 80 degrees relative to said first direction; a plurality of capacitive sensors, for detecting presence of moisture in the glue coating in a discontinuous, recurring pattern on the first surface of the filter paper strip, directed toward the second surface of the filter paper strip, mounted in recesses in said plate surface of said sliding plate and arranged in a row extending transversely to said first direction; a control means coupled to said sensors for evaluating signals emitted from said sensors and for emitting a fault signal for controlling the cigarette machine when the moisture sensed in the glue coating is insufficient; and conveying means for moving the filter paper strip to and from said glue applicator and said sliding plate.
Claim 12
Dependent Claim
197 words
A cigarette forming machine, comprising: glue applicator means for applying a glue coating on a first surface a filter paper strip to be adhesively bonded about filters and cigarettes; a sliding plate having a plate surface engaging a second surface of the filter paper strip, opposite to the first surface, and over which the filter paper strip runs in a first direction, said plate surface having groove-shaped channels oriented at angles of between 10 degrees and 80 degrees relative to said first direction; a plurality of capacitive sensors, for detecting presence of moisture in the glue coating in a discontinuous, recurring pattern on the first surface of the filter paper strip, directed toward the second surface of the filter paper strip, mounted in recesses in said plate surface of said sliding plate and arranged in a row extending transversely to said first direction; a control means coupled to said sensors for evaluating signals emitted from said sensors and for emitting a fault signal for controlling the cigarette machine when the moisture sensed in the glue coating is insufficient; and conveying means for moving the filter paper strip to and from said glue applicator and said sliding plate.
Claim 13
Dependent Claim
27 words
A cigarette forming machine according to claim 10 wherein said sliding plate is curved in said first direction with a radius of curvature greater than 50 centimeters.
Claim 14
Dependent Claim
15 words
A cigarette forming machine according to claim 10 wherein said angles are about 45 degrees.
Claim 15
Dependent Claim
26 words
A cigarette forming machine according to claim 10 wherein said sliding plate comprises a plurality of suction connections across a width of the filter paper strip.
Claim 16
Dependent Claim
25 words
A cigarette forming machine according to claim 13 wherein said suction connections open into said groove-shaped channels in said plate surface of said sliding plate.
Claim 17
Dependent Claim
17 words
A cigarette forming machine according to claim 10 wherein said sliding plate comprises a sharp run-on edge.
Claim 18
Dependent Claim
42 words
A cigarette forming machine according to claim 10 wherein said sensors are arranged at a distance below said plate surface of said sliding plate; and wherein a dielectric material is introduced between said sensors and said plate surface of said sliding plate.
Claim 19
Dependent Claim
59 words
A cigarette forming machine according to claim 10 wherein said glue applicator means applies the glue coating in a discontinuous, recurring pattern; and wherein said control means comprises a time frame with a specific segment duration which is predetermined, said fault signal being generated when a sufficient moisture content cannot be detected at an end of a time-frame segment.
Claim 20
Dependent Claim
20 words
A cigarette forming machine according to claim 17 wherein the time-frame segments have lengths dependent on cigarette forming machine speed.
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) | 1995-12-08 | 1996-06-08 | 1996-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-12-08 | 2000-06-08 | 2000-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-12-08 | 2004-06-08 | 2004-12-08 | $7700.00 | Window Closed / Lapsed |