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US4535904A Expired / Lapsed US ⏱️ 0.0 years remaining

Tool removable tamper indicating closure

Assignee: Glad Products Co
•
Filing: 1984-12-11
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Granted: 1985-08-20
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Expires: 2004-12-11
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Abstract

Abstract A tamper-indicating closure comprising a disc-shaped top with an upper skirt extending downwardly from the top; an annular upper bead around the inner surface of the upper skirt; a lower skirt proximate to and in center alignment with the upper skirt, the upper skirt being disposed between the top and the lower skirt; an annular retention bead around the inner surface of the lower skirt; a breakable bridge means between the skirts as the sole connection between the skirts; and a tool aperture between the skirts adapted to accept a tool means for breaking the bridge means so as to part the skirts.

Inventors

  • 👤 Michael C. O'Connor
  • 👤 George W. Hann

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 21:43
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/32; B65D41/46; B65D41/48

Claims Analysis

Total Claims: 43
Claim 1
Independent Claim 119 words
A tamper-indicating closure comprising a disc-shaped top with an upper skirt extending downwardly from the top; an annular upper locking bead around the inner surface of the upper skirt; a lower skirt proximate to and in center alignment with the upper skirt, the upper skirt being disposed between the top and the lower skirt; an annular retention bead around the inner surface of the lower skirt; breakable bridge means between the upper skirt and the lower skirt as the sole connection between the upper and lower skirt; and a tool aperture between the upper skirt and the lower skirt adapted to accept a tool means for breaking the bridge means so as to part the upper and lower skirts.
Claim 2
Dependent Claim 119 words
A tamper-indicating closure comprising a disc-shaped top with an upper skirt extending downwardly from the top; an annular upper locking bead around the inner surface of the upper skirt; a lower skirt proximate to and in center alignment with the upper skirt, the upper skirt being disposed between the top and the lower skirt; an annular retention bead around the inner surface of the lower skirt; breakable bridge means between the upper skirt and the lower skirt as the sole connection between the upper and lower skirt; and a tool aperture between the upper skirt and the lower skirt adapted to accept a tool means for breaking the bridge means so as to part the upper and lower skirts.
Claim 3
Dependent Claim 118 words
A tamper-indicating closure comprising a disc-shaped top with a cylindrical upper skirt extending downwardly from the top; an annular upper locking bead around the inner surface of the upper skirt; a cylindrical lower skirt proximate and co-axial with the upper skirt, the upper skirt being disposed between the top and and lower skirt; an annular retention bead around the inner surface of the lower skirt; breakable bridge means between the upper skirt and the lower skirt as the sole connection between the upper and lower skirt; and a tool aperture between the upper skirt and the lower skirt adapted to accept a tool means for breaking the bridge means so as to part the upper and lower skirts.
Claim 4
Dependent Claim 118 words
A tamper-indicating closure comprising a disc-shaped top with a cylindrical upper skirt extending downwardly from the top; an annular upper locking bead around the inner surface of the upper skirt; a cylindrical lower skirt proximate and co-axial with the upper skirt, the upper skirt being disposed between the top and and lower skirt; an annular retention bead around the inner surface of the lower skirt; breakable bridge means between the upper skirt and the lower skirt as the sole connection between the upper and lower skirt; and a tool aperture between the upper skirt and the lower skirt adapted to accept a tool means for breaking the bridge means so as to part the upper and lower skirts.
Claim 5
Dependent Claim 17 words
The closure of claim 1 or 2 wherein the upper skirt extends substantially perpendicularly from the top.
Claim 6
Dependent Claim 24 words
The closure of claim 1 or 2 additionally comprising an inner annular skirt concentric to the upper skirt and extending downwardly from the top.
Claim 7
Dependent Claim 18 words
The closure of claim 1 or 2 wherein there is one upper locking bead and one retention bead.
Claim 8
Dependent Claim 32 words
The closure of claim 5 wherein the upper locking bead is near the bottom periphery of the upper skirt and the retention bead is near the bottom periphery of the lower skirt.
Claim 9
Dependent Claim 30 words
The closure of claim 2 wherein the breakable bridge means comprises a plurality of bridges on the closure circumference, with adjacent bridges circumferentially separated by a series of secondary apertures.
Claim 10
Dependent Claim 18 words
The closure of claim 7, wherein the secondary apertures are longer than the bridges in the circumferential direction.
Claim 11
Dependent Claim 18 words
The closure of claim 7, wherein the secondary apertures are shorter than the bridges in the circumferential direction.
Claim 12
Dependent Claim 35 words
The closure of claim 1 or 2 wherein the bridge means has a continuous surface and the wall thickness of the bridge means is less than the wall thickness of the upper or lower skirts.
Claim 13
Dependent Claim 11 words
The closure of claim 10 wherein the bridge means is corrugated.
Claim 14
Dependent Claim 22 words
The closure of claim 2 wherein there are a plurality of bridge means with adjacent bridge means circumferentially separated by tool apertures.
Claim 15
Dependent Claim 13 words
The closure of claim 12 wherein the tool apertures are of equal size.
Claim 16
Dependent Claim 13 words
The closure of claim 12 wherein the bridge means are of equal size.
Claim 17
Dependent Claim 20 words
The closure of claim 12 wherein the tool apertures are sized longer than the bridge means in the circumferential direction.
Claim 18
Dependent Claim 20 words
The closure of claim 12 wherein the tool apertures are sized shorter than the bridge means in the circumferential direction.
Claim 19
Dependent Claim 21 words
The closure of claim 13 wherein the tool apertures are sized to receive a disc-shaped tool about 25 mm in diameter.
Claim 20
Dependent Claim 17 words
The closure of claim 2 wherein the lower skirt has a larger diameter than the upper skirt.
Claim 21
Dependent Claim 206 words
An assembly comprising (A) a closure which comprises a disc-shaped top with an upper skirt extending downwardly from the top; an annular upper locking bead around the inner surface of the upper skirt; a lower skirt proximate to and in center alignment with the upper skirt, the upper skirt being disposed between the top and lower skirt; an annular retention bead around the inner surface of the lower skirt; breakable bridge means between the upper skirt and the lower skirt as the sole connection between the upper and lower skirt; and a tool aperture between the upper skirt and the lower skirt adapted to accept a tool means for breaking the bridge means so as to part the upper and lower skirts, and (B) a container having a cooperating neck portion upon which the closure fits in center alignment, the neck portion having an upper interference surface that interlocks with the upper locking bead to provide a releasable interference to the removal of the closure when the upper and lower skirts are parted, and having a retention interference surface below the upper interference surface that interlocks with the retention bead so as to prevent removal of the closure before the upper and lower skirts are parted.
Claim 22
Dependent Claim 206 words
An assembly comprising (A) a closure which comprises a disc-shaped top with an upper skirt extending downwardly from the top; an annular upper locking bead around the inner surface of the upper skirt; a lower skirt proximate to and in center alignment with the upper skirt, the upper skirt being disposed between the top and lower skirt; an annular retention bead around the inner surface of the lower skirt; breakable bridge means between the upper skirt and the lower skirt as the sole connection between the upper and lower skirt; and a tool aperture between the upper skirt and the lower skirt adapted to accept a tool means for breaking the bridge means so as to part the upper and lower skirts, and (B) a container having a cooperating neck portion upon which the closure fits in center alignment, the neck portion having an upper interference surface that interlocks with the upper locking bead to provide a releasable interference to the removal of the closure when the upper and lower skirts are parted, and having a retention interference surface below the upper interference surface that interlocks with the retention bead so as to prevent removal of the closure before the upper and lower skirts are parted.
Claim 23
Dependent Claim 206 words
An assembly comprising (A) a closure which comprises a disc-shaped top with a cylindrical upper skirt extending downwardly from the top; an annular upper locking bead around the inner surface of the upper skirt, a cylindrical lower skirt proximate and co-axial with the upper skirt; the upper skirt being disposed between the top and and lower skirt, an annular retention bead around the inner surface of the lower skirt; breakable bridge means between the upper skirt and the lower skirt as the sole connection between the upper and lower skirt, and a tool aperture between the upper skirt and the lower skirt, adapted to accept a tool means for breaking the bridge means so as to part the upper and lower skirts, (B) a container having a cooperating cylindrical neck portion upon which the closure fits in co-axial alignment, the neck portion having an upper interference surface that interlocks with the upper locking bead to provide a releasable interference to the removal of the closure when the upper and lower skirts are parted, and having a retention interference surface below the upper interference surface that interlocks with the retention bead so as to prevent removal of the closure before the upper and lower skirts are parted.
Claim 24
Dependent Claim 206 words
An assembly comprising (A) a closure which comprises a disc-shaped top with a cylindrical upper skirt extending downwardly from the top; an annular upper locking bead around the inner surface of the upper skirt, a cylindrical lower skirt proximate and co-axial with the upper skirt; the upper skirt being disposed between the top and and lower skirt, an annular retention bead around the inner surface of the lower skirt; breakable bridge means between the upper skirt and the lower skirt as the sole connection between the upper and lower skirt, and a tool aperture between the upper skirt and the lower skirt, adapted to accept a tool means for breaking the bridge means so as to part the upper and lower skirts, (B) a container having a cooperating cylindrical neck portion upon which the closure fits in co-axial alignment, the neck portion having an upper interference surface that interlocks with the upper locking bead to provide a releasable interference to the removal of the closure when the upper and lower skirts are parted, and having a retention interference surface below the upper interference surface that interlocks with the retention bead so as to prevent removal of the closure before the upper and lower skirts are parted.
Claim 25
Dependent Claim 15 words
The assembly of claim 20 wherein the upper skirt extends substantially perpendicularly from the top.
Claim 26
Dependent Claim 27 words
The assembly of claim 19 or 20 wherein the upper interference surface is provided by a bead around the outer surface of the neck of the container.
Claim 27
Dependent Claim 27 words
The assembly of claim 19 or 20 wherein the retention interference surface is provided by a bead around the outer surface of the neck of the container.
Claim 28
Dependent Claim 31 words
The assembly of claim 20 wherein the diameter of the neck portion at the retention interference surface is greater than the diameter of the neck portion at the upper interference surface.
Claim 29
Dependent Claim 23 words
The assembly of claim 20 which additionally comprises an inner annular skirt concentric to the upper skirt and extending downwardly from the top.
Claim 30
Dependent Claim 18 words
The assembly of claim 19 or 20 wherein there is one upper locking bead and one retention bead.
Claim 31
Dependent Claim 34 words
The assembly of claim 19 or 20 wherein the upper locking bead is near the bottom periphery of the upper skirt and the retention bead is near the bottom periphery of the lower skirt.
Claim 32
Dependent Claim 29 words
The assembly of claim 20 wherein the bridge means comprises a plurality of bridges on the closure circumference, with adjacent bridges circumferentially separated by a series of secondary apertures.
Claim 33
Dependent Claim 18 words
The assembly of claim 28, wherein the secondary apertures are longer than the bridges in the circumferential direction.
Claim 34
Dependent Claim 18 words
The assembly of claim 28, wherein the secondary apertures are shorter than the bridges in the circumferential direction.
Claim 35
Dependent Claim 33 words
The assembly of claim 28 wherein the bridge means has a continuous surface and the wall thickness of the bridge means is less than the wall thickness of the upper or lower skirts.
Claim 36
Dependent Claim 11 words
The assembly of claim 31 wherein the bridge means is corrugated.
Claim 37
Dependent Claim 22 words
The assembly of claim 20 wherein there are a plurality of bridge means with adjacent bridge means circumferentially separated by tool apertures.
Claim 38
Dependent Claim 13 words
The assembly of claim 33 wherein the bridge means are of equal size.
Claim 39
Dependent Claim 13 words
The assembly of claim 33 wherein the tool apertures are of equal size.
Claim 40
Dependent Claim 20 words
The assembly of claim 33 wherein the tool apertures are sized longer than the bridge means in the circumferential direction.
Claim 41
Dependent Claim 20 words
The assembly of claim 33 wherein the tool apertures are sized shorter than the bridge means in the circumferential direction.
Claim 42
Dependent Claim 21 words
The assembly of claim 33 wherein the tool apertures are sized to receive a disc-shaped tool about 25 mm in diameter.
Claim 43
Dependent Claim 17 words
The assembly of claim 20 wherein the lower skirt has a larger diameter than the upper skirt.

References Cited (Backward Citations)

US3455478A Cited
US4037746A Cited
US4362253A Cited
US4461390A Cited
US4385711A Cited
US4479586A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-08-19 1989-02-18 1989-08-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-08-19 1993-02-18 1993-08-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-08-19 1997-02-18 1997-08-20 $7700.00 Window Closed / Lapsed

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