US5143235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bottle neck having means to prevent compression of cap skirt
Assignee: Portola Packaging Inc
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Filing: 1990-08-15
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Granted: 1992-09-01
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Expires: 2010-08-15
Abstract
Abstract Container neck finishes produced by preforming processes such as injection or compression molding can generally be made to more accurate dimensions than blow molded finishes. Blow molded bottles conventionally have had an outward slanted area below the locking beads which merges into a horizontal shoulder on which the lower edge of the cap skirt rests, the slanted areas preventing the lower portion of the skirt from being compressed or pinched-in. As a substitute for the slanted area of blow molded bottles, the present invention provides annular rings on a preformed finish which supports the skirt against compression and a larger diameter second annular ring which functions as a shoulder on which the lower edge of the cap skirt may rest.
Inventors
- 👤 Richard E. Repp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:13
CPC Classifications
B; B65; B65D; B65D1/00; B65D1/02; B65D1/0223; B65D1/023; B65D1/0246; B65D41/00; B65D41/32; B65D41/46; B65D41/48; Y; Y10; Y10S; Y10S215/00; Y10S215/901
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
236 words
A container neck for use with a snap-on type cap having a top disk and a depending peripheral skirt, said skirt having snap-on locking means on its interior, tamper-evident means on its lower portion including at least a part of said locking means and removal means for said tamper evident means for removing that portion of said skirt containing said tamper-evident means, said skirt having a substantially horizontal lower edge at the bottom of said tamper-evident means, said neck having an upper lip and the exterior of said neck below said lip comprising circumferential, horizontal, snap-on bead means engageable with said locking means, whereby when said cap is seated on said neck said cap is held on said neck until said removal means is employed by the user to remove said tamper-evident means, and at least one thin ring extending outwardly of said neck which, when said cap is seated on said neck, is located above said lower edge of said skirt and positioned to fit inside the lower portion of said skirt substantially above said lower edge of said skirt to secure said skirt against inward pinching or compression, said ring having top and bottom surfaces spaced apart a distance substantially less than the distance between said bead means and said lower edge of said skirt and said ring extending outwardly at least as far as said bead means, said bottom surface being substantially horizontal.
Claim 2
Dependent Claim
236 words
A container neck for use with a snap-on type cap having a top disk and a depending peripheral skirt, said skirt having snap-on locking means on its interior, tamper-evident means on its lower portion including at least a part of said locking means and removal means for said tamper evident means for removing that portion of said skirt containing said tamper-evident means, said skirt having a substantially horizontal lower edge at the bottom of said tamper-evident means, said neck having an upper lip and the exterior of said neck below said lip comprising circumferential, horizontal, snap-on bead means engageable with said locking means, whereby when said cap is seated on said neck said cap is held on said neck until said removal means is employed by the user to remove said tamper-evident means, and at least one thin ring extending outwardly of said neck which, when said cap is seated on said neck, is located above said lower edge of said skirt and positioned to fit inside the lower portion of said skirt substantially above said lower edge of said skirt to secure said skirt against inward pinching or compression, said ring having top and bottom surfaces spaced apart a distance substantially less than the distance between said bead means and said lower edge of said skirt and said ring extending outwardly at least as far as said bead means, said bottom surface being substantially horizontal.
Claim 3
Dependent Claim
54 words
A neck construction according to claim 1, wherein said locking means comprises upper and lower cap locking beads and said bead means comprises a first neck bead engageable with said upper cap locking bead and a second neck bead engageable with said lower cap locking bead, said tamper-evident means containing said lower locking bead.
Claim 4
Dependent Claim
24 words
A neck according to claim 2 in which said second neck bead comprises a downward-outward sloping top surface and a substantially horizontal bottom surface.
Claim 5
Dependent Claim
26 words
A neck according to claim 3 in which the maximum diameter of said second neck bead is substantially greater than that of said first neck bead.
Claim 6
Dependent Claim
30 words
A neck construction according to claim 1 for use with a cap of the type having a central plug, said upper lip being upwardly outwardly slanted at its upper end.
Claim 7
Dependent Claim
37 words
A neck construction according to claim 5 in which the interior of the upper end of said neck has a larger bore than said interior below said plug in the assembled condition of said cap and neck.
Claim 8
Dependent Claim
30 words
A neck according to claim 1 which further comprises an enlarged ring below said first-mentioned ring positioned so that the lower edge of said skirt rests on said enlarged ring.
Claim 9
Dependent Claim
22 words
A neck according to claim 1 in which said ring comprises a substantially horizontal bottom surface and a downward-outward slanted top surface.
Claim 10
Dependent Claim
16 words
A neck according to claim 8 in which the outer edge of said ring is rounded.
Claim 11
Dependent Claim
24 words
A neck according to claim 1 in which said neck bead means comprises a downward-outward sloping top surface and a substantially horizontal bottom surface.
Claim 12
Dependent Claim
172 words
A container neck for use with a cap of the type having a top disk and a depending peripheral skirt, said skirt having locking means on its interior, tamper-evident means and removal means for removing that portion of said skirt containing said tamper-evident means, said neck having an upper lip and the exterior of said neck below said lip comprising bead means engageable with said locking means, whereby when said cap is seated on said neck said cap is held on said neck until said removal means is employed by the user to remove said tamper-evident means, and at least one ring extending outwardly of said neck which, when said cap is seated on said neck, is located adjacent the lower end of said skirt positioned to fit inside the lower portion of said skirt to secure said skirt against inward pinching or compression, said ring having top and bottom surfaces and a plurality of circumferentially spaced guide-on fins extending upward-inward from the outer edge of the top surface of said ring.
Claim 13
Dependent Claim
172 words
A container neck for use with a cap of the type having a top disk and a depending peripheral skirt, said skirt having locking means on its interior, tamper-evident means and removal means for removing that portion of said skirt containing said tamper-evident means, said neck having an upper lip and the exterior of said neck below said lip comprising bead means engageable with said locking means, whereby when said cap is seated on said neck said cap is held on said neck until said removal means is employed by the user to remove said tamper-evident means, and at least one ring extending outwardly of said neck which, when said cap is seated on said neck, is located adjacent the lower end of said skirt positioned to fit inside the lower portion of said skirt to secure said skirt against inward pinching or compression, said ring having top and bottom surfaces and a plurality of circumferentially spaced guide-on fins extending upward-inward from the outer edge of the top surface of said ring.
Claim 14
Dependent Claim
17 words
A neck according to claim 11 in which said ring and said bead means are the co-extensive.
Claim 15
Dependent Claim
30 words
A neck according to claim 11 which further comprises an enlarged ring below said first-mentioned ring positioned so that the lower edge of said skirt rests on said enlarged ring.
Claim 16
Dependent Claim
36 words
A neck according to claim 13 which further comprises a plurality of circumferentially spaced second guide-on fins extending upward-inward from said enlarged ring, said second fins terminating spaced inward from the periphery of said enlarged ring.
Claim 17
Dependent Claim
25 words
A neck according to claim 14 in which said second fins are skewed relative to a vertical plane through the vertical axis of said neck.
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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) | 1995-09-01 | 1996-03-02 | 1996-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-09-01 | 2000-03-02 | 2000-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-09-01 | 2004-03-02 | 2004-09-01 | $7700.00 | Window Closed / Lapsed |