Patent US4234300A successfully refreshed from Google Patents.
US4234300A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Edge embossing device
Assignee: Fujifilm Holdings Corp
•
Filing: 1978-11-28
•
Granted: 1980-11-18
•
Expires: 1998-11-28
Abstract
Abstract An embossing device for roughening a lateral edge of a molded thermo-plastic sheet material by deforming it with a mechanical deforming device is disclosed. The device comprises a pair of rollers whose outer walls are rough and a structure for abutting these rollers against each other under pressure. The rough outer wall of at least one of the pair of rollers having a rough surface is provided with a plurality of relatively smooth stripes. The stripes are arranged in the width-wise direction of said roller.
Inventors
- 👤 Kikuo Yamagisi
- 👤 Hiroshi Okuyama
- 👤 Hideo Kawaguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:50
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/32; B29C43/44; B29C43/46; B29C59/00; B29C59/02; B29C59/04; B29C67/00; B29C67/0044
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
101 words
In an embossing device for deforming a lateral edge of a molded thermo-plastic sheet by mechanical means, the improvement comprising, first and second embossing rollers disposed in an opposed relationship on opposite sides of said sheet, said rollers having solid cylindrical outer walls having an exterior embossing pattern thereon composed of a plurality of small, raised surface projections, and at least one of said rollers having at least one intermediate circumferential stripe of a relatively smooth surface devoid of said raised projections, said rollers having a width equal to the width of the lateral edge portion of the sheet being embossed.
Claim 2
Dependent Claim
101 words
In an embossing device for deforming a lateral edge of a molded thermo-plastic sheet by mechanical means, the improvement comprising, first and second embossing rollers disposed in an opposed relationship on opposite sides of said sheet, said rollers having solid cylindrical outer walls having an exterior embossing pattern thereon composed of a plurality of small, raised surface projections, and at least one of said rollers having at least one intermediate circumferential stripe of a relatively smooth surface devoid of said raised projections, said rollers having a width equal to the width of the lateral edge portion of the sheet being embossed.
Claim 3
Dependent Claim
18 words
The device of claim 1, wherein said one roller is provided with a second intermediate smooth circumferential stripe.
Claim 4
Dependent Claim
23 words
The device of claim 2 wherein said stripes are of a different width than the width of said areas having said raised projections.
Claim 5
Independent Claim
28 words
The device of claims 1, 2 or 3 wherein the width of said stripes is in the range of 15% to 50% of the width of the roller.
Claim 6
Independent Claim
28 words
The device of claims 1, 3 or 3 wherein the width of said stripes is in the range of 25% to 45% of the width of the roller.
References Cited (Backward Citations)
US53920A
Cited
US197181A
Cited
US822536A
Cited
US910790A
Cited
US1520602A
Cited
US1946838A
Cited
US2358176A
Cited
US2857825A
Cited
US3226280A
Cited
US3502765A
Cited
US4021179A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-11-18 | 1984-05-19 | 1984-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-18 | 1988-05-19 | 1988-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-18 | 1992-05-19 | 1992-11-18 | $7700.00 | Window Closed / Lapsed |