US3926148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Application of adhesive to a moving web
Assignee: Individual
•
Filing: 1973-03-09
•
Granted: 1975-12-16
•
Expires: 1993-03-09
Abstract
Abstract Adhesive is applied to a carrier moving in a first direction, and a web is advanced across the carrier in an opposite second direction. The web is intermittently contacted with the carrier so that transfer is achieved of adhesive from the carrier to spaced increments of the moving web.
Inventors
- 👤 Karl-Heinz Honsel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:39
CPC Classifications
D; D21; D21H; D21H23/00; D21H23/02; D21H23/22; D21H23/52; B; B05; B05C; B05C1/00; B05C1/04; B05C1/16; B05C1/165; D21H5/00; D21H5/0005; D21H5/0025
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
182 words
Apparatus for applying a self-adhesive material to a flat web, particularly to envelope blanks, comprising advancing means for advancing a flat web having two opposite major surfaces, in one direction; an adhesive carrier adjacent one of said major surfaces; transfer means, comprising a pressure-applying transfer roller located adjacent the other major surface and having a circumferential face and at least one pressure-exerting projection extending from said face for intermittent contact with the advancing web so as to press spaced portions of said one major surface into adhesive-transferring contact with said carrier; applying means, including an applying roller for applying to said carrier a self-adhesive material which tends to form a build-up on said adhesive carrier in the region where said one major surface is pressed against said adhesive carrier by portions of said projection; and moving means for moving said adhesive carrier in an opposite direction to, and at a speed higher than the speed of said web so as to prevent the formation of such build-up and consequent uneven transfer of said adhesive onto said major surface of said flat web.
Claim 2
Dependent Claim
182 words
Apparatus for applying a self-adhesive material to a flat web, particularly to envelope blanks, comprising advancing means for advancing a flat web having two opposite major surfaces, in one direction; an adhesive carrier adjacent one of said major surfaces; transfer means, comprising a pressure-applying transfer roller located adjacent the other major surface and having a circumferential face and at least one pressure-exerting projection extending from said face for intermittent contact with the advancing web so as to press spaced portions of said one major surface into adhesive-transferring contact with said carrier; applying means, including an applying roller for applying to said carrier a self-adhesive material which tends to form a build-up on said adhesive carrier in the region where said one major surface is pressed against said adhesive carrier by portions of said projection; and moving means for moving said adhesive carrier in an opposite direction to, and at a speed higher than the speed of said web so as to prevent the formation of such build-up and consequent uneven transfer of said adhesive onto said major surface of said flat web.
Claim 3
Dependent Claim
13 words
Apparatus as defined in claim 1, wherein said carrier is a carrier roller.
Claim 4
Dependent Claim
27 words
Apparatus as defined in claim 1, wherein said carrier is a carrier roller; and wherein said carrier and applying rollers define with one another a slight gap.
Claim 5
Dependent Claim
22 words
Apparatus as defined in claim 1, further comprising a wiper member associated with said carrier for wiping excess adhesive off the same.
Claim 6
Dependent Claim
21 words
Apparatus as defined in claim 1, further comprising pressure rollers movable into and out of pressure-exerting contact with said transfer roller.
Claim 7
Dependent Claim
33 words
Apparatus as defined in claim 1, said projection having an outwardly directed contact face whose contour corresponds to the shape desired for the respective web increments to which adhesive is to be transferred.
Claim 8
Dependent Claim
62 words
Apparatus as defined in claim 6; further comprising a plurality of additional projections similar to the first-mentioned projection, all of said projections being strip-shaped; and wherein each of said projections extends over substantially half the axial length of said transfer roller and said projections are spaced circumferentially of the transfer roller and alternately located in opposite axial halves of said transfer roller.
Claim 9
Dependent Claim
48 words
Apparatus as defined in claim 7; further comprising a plurality of suction means in said transfer roller each located on a line constituting an extension of a respective projection but in the half of said transfer roller which is opposite to that in which the projection is located.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |