Patent US4259055A successfully refreshed from Google Patents.
US4259055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating apparatus
Assignee: EIDP Inc
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Filing: 1979-10-01
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Granted: 1981-03-31
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Expires: 1999-10-01
Abstract
Abstract A sectional, coating die having a shaped shim between two die plates. The shim defines an extrusion slot and has an integral tab that extends laterally into a cavity in one of the plates for diverting bubbles and foam in the coating formulation.
Inventors
- 👤 William G. O'Brien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:49
CPC Classifications
B; B05; B05C; B05C5/00; B05C5/02; B05C5/0254; G; G03; G03C; G03C1/00; G03C1/74
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
47 words
An extruder including mating die plates and a shim located between the plates to define an extrusion slot, one of said plates having a cavity opening into said slot, the improvement comprising provision of an integral flap bent laterally from the shim and extending into the cavity.
Claim 2
Dependent Claim
47 words
An extruder including mating die plates and a shim located between the plates to define an extrusion slot, one of said plates having a cavity opening into said slot, the improvement comprising provision of an integral flap bent laterally from the shim and extending into the cavity.
Claim 3
Dependent Claim
22 words
The extruder of claim 1 wherein said cavity has an elongated bottom wall and said flap has an outer edge spaced therefrom.
Claim 4
Dependent Claim
34 words
The extruder of claim 2 wherein said bottom wall slopes from its ends to a maximum depth at its mid-point and the outer edge of said flap conforms in shape to said bottom wall.
Claim 5
Dependent Claim
28 words
The extruder of claim 1 wherein said cavity is elongated with bottom and end walls and wherein said flap has edges spaced from said bottom and end walls.
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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) | 1984-03-30 | 1984-09-29 | 1985-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-30 | 1988-09-29 | 1989-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-30 | 1992-09-29 | 1993-03-31 | $7700.00 | Window Closed / Lapsed |