Patent US4948131A successfully refreshed from Google Patents.
US3632005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double-seal plastic cap with flexible rim-engaging flange
Assignee: Individual
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Filing: 1969-12-12
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Granted: 1972-01-04
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Expires: 1989-12-12
Abstract
Abstract A one-piece plastic cap, primarily for glass bottles, having two separate annular sealing areas, one formed by a hollow cylindrical stopperlike portion extending down from the top of the cap into the neck of a bottle or other container, and the other sealing portion formed by a flexible rim-engaging flange extending out in skirtlike fashion from the cylindrical portion near its top and deformable upwardly by the pouring rim of a bottle or the like into conformity with the rim contour at all points around the engaged portion of the rim.
Inventors
- 👤 Milton Kessler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:43
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/02; B65D41/04; B65D41/0407; B65D41/0414; B65D41/0421
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
181 words
A. A one-piece double-seal semirigid plastic cap of substantially incompressible material, having two separate annular sealing areas, comprising b. a substantially flat top portion, c. an exterior cylindrical skirt portion extending downwardly from the top portion and provided with means for engaging the exterior of a pouring spout so as to press the top portion downwardly against the pouring lip of such spout, d. a hollow, generally cylindrical stopperlike portion extending down from the top of the cap into the interior of an engaged pouring spout in snug sealing relation with an interior cylindrical wall of said pouring spout, e. a thin, flexible, rim-engaging annular flange extending outwardly as a skirt from said cylindrical stopper below the bottom of the flat top portion by an amount less than the width of the flange, so that the edge of said skirt can be flexed upwardly by an engaged pouring lip until it comes into contact with said flat top, f. said annular flange in its unused condition extending out and down from the cylindrical portion in the form of a truncated cone.
Claim 2
Dependent Claim
181 words
A. A one-piece double-seal semirigid plastic cap of substantially incompressible material, having two separate annular sealing areas, comprising b. a substantially flat top portion, c. an exterior cylindrical skirt portion extending downwardly from the top portion and provided with means for engaging the exterior of a pouring spout so as to press the top portion downwardly against the pouring lip of such spout, d. a hollow, generally cylindrical stopperlike portion extending down from the top of the cap into the interior of an engaged pouring spout in snug sealing relation with an interior cylindrical wall of said pouring spout, e. a thin, flexible, rim-engaging annular flange extending outwardly as a skirt from said cylindrical stopper below the bottom of the flat top portion by an amount less than the width of the flange, so that the edge of said skirt can be flexed upwardly by an engaged pouring lip until it comes into contact with said flat top, f. said annular flange in its unused condition extending out and down from the cylindrical portion in the form of a truncated cone.
Claim 3
Dependent Claim
30 words
The invention according to claim 1, f. said flange extending out radially only a sufficient distance to contact the topmost portion of the pouring lip of an engaged pouring spout.
Claim 4
Dependent Claim
34 words
The invention according to claim 2, said annular flange being tapered in thickness from a maximum at its base, where it is joined to the cylindrical portion, to a minimum thickness at its edge.
References Cited (Backward Citations)
US3055526A
Cited
FR1342700A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-03 | 1975-07-05 | 1976-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-03 | 1979-07-05 | 1980-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-03 | 1983-07-05 | 1984-01-04 | $7700.00 | Window Closed / Lapsed |