Patent US3858742A successfully refreshed from Google Patents.
US3858742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bottle cap
Assignee: Individual
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Filing: 1973-04-09
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Granted: 1975-01-07
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Expires: 1993-04-09
Abstract
Abstract One piece plastic bottle cap is characterized by a reinforcing ring which projects below the external skirt of the cap and has a frusto-conical external profile which decreases in radius toward the bottom. It is particularly adapted to capping bottles containing carbonated liquids or deformable bottles of plastic material.
Inventors
- 👤 Jean Grussen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:11
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/32; B65D41/46; B65D41/48; B65D41/485; B67; B67B; B67B3/00; B67B3/02; B67B3/026; B67B3/22; B65D2401/00; B65D2401/15; B65D2401/30
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
124 words
In a one-piece bottle cap made of plastic material having a depending external skirt, an internally projecting retaining ring on said external skirt, and a reinforcing ring encircling said retaining ring which may be used as a cap-removing ring and is attached to said cap by an integral hinge, the improvement according to which said reinforcing ring projects downwardly beyond the lower edge of the external skirt of said cap, and the external surface of the lower part of said reinforcing ring tapers inwardly toward a thin lower edge adapted to approach an enlarged section of the neck of a bottle carrying said cap, so as to inhibit the insertion of a finger between said edge of said reinforcing ring and said bottle neck.
Claim 2
Dependent Claim
124 words
In a one-piece bottle cap made of plastic material having a depending external skirt, an internally projecting retaining ring on said external skirt, and a reinforcing ring encircling said retaining ring which may be used as a cap-removing ring and is attached to said cap by an integral hinge, the improvement according to which said reinforcing ring projects downwardly beyond the lower edge of the external skirt of said cap, and the external surface of the lower part of said reinforcing ring tapers inwardly toward a thin lower edge adapted to approach an enlarged section of the neck of a bottle carrying said cap, so as to inhibit the insertion of a finger between said edge of said reinforcing ring and said bottle neck.
Claim 3
Dependent Claim
40 words
Bottle cap as claimed in claim 1 which comprises an inner sealing skirt the upper part of which has an unstressed external diameter greater than the maximum diameter of the neck of the bottle to be closed by said cap.
Claim 4
Dependent Claim
116 words
Bottle cap as claimed in claim 2 in which said sealing skirt defines an upwardly open central cup having an incurved bottom, while the lower part of said sealing skirt has a frusto-conical external profile which decreases in diameter toward said bottom and terminates in a circular lip below said bottom, the lower part of said skirt being shaped to permit said circular lip and lower part to straighten to a vertical position when pressure is exerted on said bottom to increase its convexity and correspondingly reduce the diameter of the upper part of said sealing skirt until it can enter a bottle neck having a diameter smaller than the unstressed diameter of said upper part.
Claim 5
Dependent Claim
72 words
Bottle cap as claimed in claim 2 having a flat cover part which closes the top of said sealing skirt, which skirt has a cylindrical internal profile, the outer diameter of said sealing skirt being constant near its upper part while its lower part is frusto-conical and decreases in thickness toward its bottom, terminating in a thin part of constant radial thickness facilitating the penetration of said internal skirt into said neck.
Claim 6
Dependent Claim
80 words
Bottle cap as claimed in claim 1 in which the external skirt extends beyond the bottom of the retaining ring so as to increase the thickness of the hinge, the upper edge of which stops at a sufficient distance from the upper edge of the reinforcing ring to form between said external skirt and the upper part of said reinforcing ring a groove facilitating the swinging of the reinforcing ring to the position required for its use as a cap-remover.
Claim 7
Dependent Claim
30 words
Bottle cap as claimed in claim 1 in which the lower part of the reinforcing ring is provided with at least two notches positioned on opposite sides of the hinge.
Claim 8
Dependent Claim
62 words
Cap as claimed in claim 1 in which the reinforcing ring is provided on the side opposite said hinge with abutment means extending radially from the median part of the said ring to facilitate swinging of said reinforcing ring and the rupture of webs connecting said reinforcing ring to the external skirt on the side of said cap remote from the hinge.
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) | 1978-01-06 | 1978-07-08 | 1979-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-06 | 1982-07-08 | 1983-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-06 | 1986-07-08 | 1987-01-07 | $7700.00 | Window Closed / Lapsed |