§
Luxuse
Patent Intelligence
Sign In
Patent US5101099A successfully refreshed from Google Patents.
Patent US5383565A successfully refreshed from Google Patents.
← Back to Patent Explorer
US5383565A Expired / Lapsed US ⏱️ 0.0 years remaining

Neck finish for containers of rigid material

Assignee: Portola Packaging Inc
•
Filing: 1993-08-18
•
Granted: 1995-01-24
•
Expires: 2013-08-18
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Neck finishes suitable for containers formed of rigid materials are shaped to overcome problems which would otherwise occur if standard closures which perform satisfactorily with less rigid containers are used. One problem is that plugs (inner skirts) of closures are cut or shaved if they are oversize relative to the inner neck diameter. This problem is overcome by forming a chamfer or radius at the lead-in to the inside corner of the neck. A second problem ("ovality") occurs when the neck is not uniformly round; this problem is overcome by forming a cut-out section at the upper outer corner of the neck so that the maximum neck diameter engages the inside of the outer cap skirt below the top edge, thereby lessening outward distortion of the outer skirt.

Inventors

  • 👤 Daniel Luch

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 19:50
CPC Classifications
B; B65; B65D; B65D1/00; B65D1/02; B65D1/0223; B65D1/023

Claims Analysis

Total Claims: 14
Claim 1
Independent Claim 167 words
A container neck formed of a rigid plastic material which is subject to distortion into an oval shape comprising a side wall having inner and outer wall surfaces, a lip at the top of said side wall, a rim around said outer wall surface having a rim top joined to said lip and terminating in an outer upper corner, the outside of said rim being substantially greater in size than said outer wall surface, said rim comprising a continuous peripheral locking bead, characterized in that said outer upper corner of said rim is formed with a cutout defined in part by a downward extending upper outer wall of said rim below said rim top being greater in size than said outer wall surface for a distance approximately half the height of said rim and below said upper outer wall said rim cutout slants downward-outward in a lower outer wall which intersects the bottom of said rim to form a contact point spaced downward from said rim top.
Claim 2
Dependent Claim 167 words
A container neck formed of a rigid plastic material which is subject to distortion into an oval shape comprising a side wall having inner and outer wall surfaces, a lip at the top of said side wall, a rim around said outer wall surface having a rim top joined to said lip and terminating in an outer upper corner, the outside of said rim being substantially greater in size than said outer wall surface, said rim comprising a continuous peripheral locking bead, characterized in that said outer upper corner of said rim is formed with a cutout defined in part by a downward extending upper outer wall of said rim below said rim top being greater in size than said outer wall surface for a distance approximately half the height of said rim and below said upper outer wall said rim cutout slants downward-outward in a lower outer wall which intersects the bottom of said rim to form a contact point spaced downward from said rim top.
Claim 3
Dependent Claim 20 words
A neck according to claim 1 in which the upper inner edge of said lip is formed with a chamfer.
Claim 4
Dependent Claim 17 words
A neck according to claim 1 in which said downward extending upper outer wall is substantially vertical.
Claim 5
Dependent Claim 14 words
A neck according to claim 1 in which said upper outer wall slants downward-inward.
Claim 6
Dependent Claim 220 words
In combination, a cap having a top, a peripheral substantially vertical outer skirt depending from said top and an internal locking bead on said outer skirt spaced downward from said top, and a container having a neck formed of a rigid plastic material which is subject to distortion into an oval shape comprising a side wall having inner and outer wall surfaces, a lip at the top of said side wall, a rim around said outer wall surface having a rim top joined to said lip and terminating in an outer upper corner, the outside of said rim being substantially greater in size than said outer wall surface, said rim comprising a continuous peripheral locking bead, characterized in that said outer upper corner of said rim is formed with a cutout defined in part by a downward extending upper outer wall of said rim below said rim top being greater in size than said outer wall surface for a distance approximately half the height of said rim and below said upper outer wall said rim cutout slants downward-outward in a lower outer wall which intersects the bottom of said rim to form a contact point spaced downward from said rim top, said contact point engaging the inside of said outer skirt of said cap immediately above said internal locking bead.
Claim 7
Dependent Claim 220 words
In combination, a cap having a top, a peripheral substantially vertical outer skirt depending from said top and an internal locking bead on said outer skirt spaced downward from said top, and a container having a neck formed of a rigid plastic material which is subject to distortion into an oval shape comprising a side wall having inner and outer wall surfaces, a lip at the top of said side wall, a rim around said outer wall surface having a rim top joined to said lip and terminating in an outer upper corner, the outside of said rim being substantially greater in size than said outer wall surface, said rim comprising a continuous peripheral locking bead, characterized in that said outer upper corner of said rim is formed with a cutout defined in part by a downward extending upper outer wall of said rim below said rim top being greater in size than said outer wall surface for a distance approximately half the height of said rim and below said upper outer wall said rim cutout slants downward-outward in a lower outer wall which intersects the bottom of said rim to form a contact point spaced downward from said rim top, said contact point engaging the inside of said outer skirt of said cap immediately above said internal locking bead.
Claim 8
Dependent Claim 43 words
The combination of claim 5 in which said cap is formed with a central hollow plug and the upper inner edge of said lip is formed with a chamfer to direct said plug to fit inside said inner wall surface of said neck.
Claim 9
Dependent Claim 14 words
The combination of claim 5 in which said upper outer wall is substantially vertical.
Claim 10
Dependent Claim 171 words
A container neck formed of a rigid plastic material which is subject to distortion into an oval shape comprising a side wall having inner and outer wall surfaces, a lip at the top of said side wall, a rim around said outer wall surface having a rim top substantially co-planar with said lip terminating in an outer upper corner, the outside of said rim being substantially greater in size than said outer wall surface, said rim comprising a continuous peripheral locking bead, characterized in that said outer upper corner of said rim is formed with a cutout defined in part by a downward extending upper outer wall of said rim below said rim top being greater in size than said outer wall surface, the upper outer wall of said rim extending downward with a lower outer wall extending in an approximately horizontal-outward stretch and then in a vertical downward stretch which intersects the bottom of said rim, said vertical downward stretch comprising a contact wall spaced downward from said rim top.
Claim 11
Dependent Claim 171 words
A container neck formed of a rigid plastic material which is subject to distortion into an oval shape comprising a side wall having inner and outer wall surfaces, a lip at the top of said side wall, a rim around said outer wall surface having a rim top substantially co-planar with said lip terminating in an outer upper corner, the outside of said rim being substantially greater in size than said outer wall surface, said rim comprising a continuous peripheral locking bead, characterized in that said outer upper corner of said rim is formed with a cutout defined in part by a downward extending upper outer wall of said rim below said rim top being greater in size than said outer wall surface, the upper outer wall of said rim extending downward with a lower outer wall extending in an approximately horizontal-outward stretch and then in a vertical downward stretch which intersects the bottom of said rim, said vertical downward stretch comprising a contact wall spaced downward from said rim top.
Claim 12
Dependent Claim 53 words
In combination, a neck according to claim 8 and a cap having a top a peripheral substantially vertical outer skirt depending from said top and an internal locking bead spaced downward from said top said contact wall engaging the inside of said outer skirt of said cap immediately above said internal locking bead.
Claim 13
Dependent Claim 169 words
A container neck formed of a rigid plastic material which is subject to distortion into an oval shape comprising a side wall having inner and outer wall surfaces, a lip at the top of said side wall, a rim around said outer wall surface having a rim top joined to said lip and terminating in an outer upper corner, the outside of said rim being substantially greater in size than said outer wall surface, said rim comprising a continuous peripheral locking bead, characterized in that said outer upper corner of said rim is formed with a cutout defined in part by a substantially vertical first stretch having a diameter greater in size than said outer wall surface, a substantially horizontal second stretch at the bottom of said first stretch and a substantially vertical third stretch at the outer end of said second stretch having a diameter greater than said first stretch which intersects the bottom of said rim to form a contact point spaced downward from said rim top.
Claim 14
Dependent Claim 169 words
A container neck formed of a rigid plastic material which is subject to distortion into an oval shape comprising a side wall having inner and outer wall surfaces, a lip at the top of said side wall, a rim around said outer wall surface having a rim top joined to said lip and terminating in an outer upper corner, the outside of said rim being substantially greater in size than said outer wall surface, said rim comprising a continuous peripheral locking bead, characterized in that said outer upper corner of said rim is formed with a cutout defined in part by a substantially vertical first stretch having a diameter greater in size than said outer wall surface, a substantially horizontal second stretch at the bottom of said first stretch and a substantially vertical third stretch at the outer end of said second stretch having a diameter greater than said first stretch which intersects the bottom of said rim to form a contact point spaced downward from said rim top.

References Cited (Backward Citations)

CH221897A Cited
DE814379C Cited
FR62360E Cited
US2817453A Cited
US3462048A Cited
US3131824A Cited
US3484016A Cited
US3532244A Cited
US3572413A Cited
US3934745A Cited
US3860133A Cited
US3907146A Cited
US3946891A Cited
US4078696A Cited
US4260067A Cited
US4256240A Cited
US4289252A Cited
US4444325A Cited
US4676389A Cited
US4484687A Cited
US4484687B1 Cited
US4674644A Cited
US4500006A Cited
FR2564802A1 Cited
US4813570A Cited
US5008066A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1998-01-23 1998-07-25 1999-01-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2002-01-23 2002-07-25 2003-01-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2006-01-23 2006-07-25 2007-01-24 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag