US5332147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Buckle-proof clamshell carton
Assignee: PERSECO DIVISION OF HAVI GROUP LP
•
Filing: 1993-04-23
•
Granted: 1994-07-26
•
Expires: 2013-04-23
Abstract
Abstract A clamshell type carton is provided with a cut along the hinge score line connecting the upper cover and lower tray portions. A second cut is placed in the back panel of the carton, above or below the hinge score line cut, wherein the second cut is a continuous curve having a first end point located in the back panel and a second end point intersecting the cut along the hinge score line. The second cut is utilized to facilitate the easy opening and closing of the carton without buckling occurring in the back panel in the region of the hinge score line.
Inventors
- 👤 John F. Sorenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:33
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/64; B65D5/66; B65D5/6626; B65D5/665; B65D5/667; Y; Y10; Y10S; Y10S229/00; Y10S229/902; Y10S229/906; Y10S229/92
Claims Analysis
Total Claims: 57
Claim 1
Independent Claim
91 words
In a clamshell type container having a top cover portion, a bottom tray portion and an integral back panel, wherein said cover portion and said tray portion are hingedly connected through a hinge line extending across said back panel, the improvement comprising: a first cut along said hinge line; a second cut in said back panel positioned to one side of said first cut, wherein said second cut is a continuous curve having a first end point located in said back panel and a second end point intersecting said first cut.
Claim 2
Dependent Claim
91 words
In a clamshell type container having a top cover portion, a bottom tray portion and an integral back panel, wherein said cover portion and said tray portion are hingedly connected through a hinge line extending across said back panel, the improvement comprising: a first cut along said hinge line; a second cut in said back panel positioned to one side of said first cut, wherein said second cut is a continuous curve having a first end point located in said back panel and a second end point intersecting said first cut.
Claim 3
Dependent Claim
15 words
The clamshell type container of claim 1, wherein said second cut comprises a negative slope.
Claim 4
Dependent Claim
28 words
The clamshell type container of claim 1, wherein said second cut comprises a negative slope throughout its length from said first end point to said second end point.
Claim 5
Dependent Claim
13 words
The clamshell type container of claim 1, wherein said first cut is continuous.
Claim 6
Dependent Claim
25 words
The clamshell type container of claim 4, wherein said first cut has a length of approximately three fourths of the length of said hinge line.
Claim 7
Dependent Claim
20 words
The clamshell type container of claim 4, wherein said first cut is centrally located with respect to said hinge line.
Claim 8
Dependent Claim
20 words
The clamshell type container of claim 1, comprising a third cut in said back panel and above said hinge line.
Claim 9
Dependent Claim
31 words
The clamshell type container of claim 7, wherein said third cut is a mirror image of said second cut with respect to a line which is perpendicular to said hinge line.
Claim 10
Dependent Claim
20 words
The clamshell type container of claim 2, comprising a third cut in said back panel and above said hinge line.
Claim 11
Dependent Claim
29 words
The clamshell type container of claim 9, wherein said third cut is a mirror image of said second cut with respect to a line perpendicular to said hinge line.
Claim 12
Dependent Claim
20 words
The clamshell type container of claim 3, comprising a third cut in said back panel and above said hinge line.
Claim 13
Dependent Claim
29 words
The clamshell type container of claim 11, wherein said third cut is a mirror image of said second cut with respect to a line perpendicular to said hinge line.
Claim 14
Dependent Claim
38 words
The clamshell type container of claim 1, comprising a third cut in said back panel and below said hinge line, wherein said third cut is a mirror image of said second cut with respect to said hinge line.
Claim 15
Dependent Claim
38 words
The clamshell type container of claim 2, comprising a third cut in said back panel and below said hinge line, wherein said third cut is a mirror image of said second cut with respect to said hinge line.
Claim 16
Dependent Claim
38 words
The clamshell type container of claim 3, comprising a third cut in said back panel and below said hinge line, wherein said third cut is a mirror image of said second cut with respect to said hinge line.
Claim 17
Dependent Claim
15 words
The clamshell type container of claim 8, wherein said perpendicular line bisects said hinge line.
Claim 18
Dependent Claim
20 words
The clamshell type container of claim 7, comprising a fourth cut in said back panel and below said hinge line.
Claim 19
Dependent Claim
25 words
The clamshell type container of claim 17, wherein said fourth cut is a mirror image of said second cut with respect to said hinge line.
Claim 20
Dependent Claim
20 words
The clamshell type container of claim 8, comprising a fourth cut in said back panel and below said hinge line.
Claim 21
Dependent Claim
25 words
The clamshell type container of claim 19, wherein said fourth cut is a mirror image of said second cut with respect to said hinge line.
Claim 22
Dependent Claim
18 words
The clamshell type container of claim 11, wherein said second and third cuts have a common end point.
Claim 23
Dependent Claim
18 words
The clamshell type container of claim 12, wherein said second and third cuts have a common end point.
Claim 24
Dependent Claim
18 words
The clamshell type container of claim 18, wherein said second and third cuts have a common end point.
Claim 25
Dependent Claim
18 words
The clamshell type container of claim 19, wherein said second and third cuts have a common end point.
Claim 26
Dependent Claim
13 words
The clamshell type container of claim 1, comprising a plurality of second cuts.
Claim 27
Dependent Claim
19 words
The clamshell type container of claim 25, wherein said plurality of second cuts are evenly spaced from each other.
Claim 28
Dependent Claim
13 words
The clamshell type container of claim 7, comprising a plurality of third cuts.
Claim 29
Dependent Claim
19 words
The clamshell type container of claim 27, wherein said plurality of third cuts are evenly spaced from each other.
Claim 30
Dependent Claim
13 words
The clamshell type container of claim 28, comprising a plurality of second cuts.
Claim 31
Dependent Claim
19 words
The clamshell type container of claim 29, wherein said plurality of second cuts are evenly spaced from each other.
Claim 32
Dependent Claim
17 words
The clamshell type container of claim 1, wherein said second cut is positioned above said hinge line.
Claim 33
Dependent Claim
77 words
In a clamshell type container having a top cover portion, a bottom tray portion and an integral back panel, wherein said cover portion and said tray portion are hingedly connected through a hinge line extending across said back panel, the improvement comprising: a first cut along said hinge line; a second cut in said back panel positioned at one side of said first cut, wherein said second cut is J-shaped having curved section and a straight section.
Claim 34
Dependent Claim
77 words
In a clamshell type container having a top cover portion, a bottom tray portion and an integral back panel, wherein said cover portion and said tray portion are hingedly connected through a hinge line extending across said back panel, the improvement comprising: a first cut along said hinge line; a second cut in said back panel positioned at one side of said first cut, wherein said second cut is J-shaped having curved section and a straight section.
Claim 35
Dependent Claim
13 words
The clamshell type container of claim 32, wherein said first cut is continuous.
Claim 36
Dependent Claim
25 words
The clamshell type container of claim 32, wherein said first cut has a length of approximately three fourths of the length of said hinge line.
Claim 37
Dependent Claim
20 words
The clamshell type container of claim 34, wherein said first cut is centrally located with respect to said hinge line.
Claim 38
Dependent Claim
18 words
The clam shell type container of claim 32, wherein said straight section is parallel to said hinge line.
Claim 39
Dependent Claim
20 words
The clamshell type container of claim 32, comprising a third cut in said back panel and above said hinge line.
Claim 40
Dependent Claim
31 words
The clamshell type container of claim 37, wherein said third cut is a mirror image of said second cut with respect to a line which is perpendicular to said hinge line.
Claim 41
Dependent Claim
34 words
The clamshell type container of claim 32, comprising a third cut in said back panel and below said hinge line, wherein said third cut is J-shaped having a straight section and a curved section.
Claim 42
Dependent Claim
19 words
The clamshell type container of claim 39, wherein said third cut is offset with respect to said second cut.
Claim 43
Dependent Claim
32 words
The clamshell type container of claim 40, comprising a fourth cut which is a mirror image of said third cut with respect to a line which is perpendicular to said hinge line.
Claim 44
Dependent Claim
15 words
The clamshell type container of claim 38, wherein said perpendicular line bisects said hinge line.
Claim 45
Dependent Claim
17 words
The clamshell type container of claim 32, wherein said second cut is positioned above said hinge line.
Claim 46
Dependent Claim
111 words
In a clamshell type container having a top cover portion, a bottom tray portion and an integral back panel, wherein said cover portion and said tray portion are hingedly connected through a hinge line extending across said back panel, the improvement comprising: a first cut along said hinge line; a second cut in said back panel positioned at one side of said first cut, wherein said second cut is a continuous curve having a first end point located in said back panel and a second end point intersecting said first cut; and a third cut in said back panel below said first cut and offset with respect to said second cut.
Claim 47
Dependent Claim
111 words
In a clamshell type container having a top cover portion, a bottom tray portion and an integral back panel, wherein said cover portion and said tray portion are hingedly connected through a hinge line extending across said back panel, the improvement comprising: a first cut along said hinge line; a second cut in said back panel positioned at one side of said first cut, wherein said second cut is a continuous curve having a first end point located in said back panel and a second end point intersecting said first cut; and a third cut in said back panel below said first cut and offset with respect to said second cut.
Claim 48
Dependent Claim
15 words
The clamshell type container of claim 44, wherein said second cut comprises a negative slope.
Claim 49
Dependent Claim
28 words
The clamshell type container of claim 45, wherein said second cut comprises a negative slope throughout its length from said first end point to said second end point.
Claim 50
Dependent Claim
13 words
The clamshell type container of claim 44, wherein said first cut is continuous.
Claim 51
Dependent Claim
25 words
The clamshell type container of claim 44, wherein said first cut has a length of approximately three fourths of the length of said hinge line.
Claim 52
Dependent Claim
20 words
The clamshell type container of claim 48, wherein said first cut is centrally located with respect to said hinge line.
Claim 53
Dependent Claim
44 words
The clamshell type container of claim 44, comprising a fourth cut in said back panel and above said hinge line, wherein said fourth cut is a mirror image of said second cut with respect to a line which is perpendicular to said hinge line.
Claim 54
Dependent Claim
44 words
The clamshell type container of claim 44, comprising a fourth cut in said back panel and below said hinge line, wherein said third cut is a mirror image of said third cut with respect to a line which is perpendicular to said hinge line.
Claim 55
Dependent Claim
18 words
The clamshell type container of claim 44, comprising a plurality of second cuts evenly spaced from each other.
Claim 56
Dependent Claim
20 words
The clamshell type container of claim 52, comprising a plurality of third cuts offset from said plurality of second cuts.
Claim 57
Dependent Claim
16 words
The clamshell type container of claim 53, wherein said plurality of third cuts are evenly spaced.
References Cited (Backward Citations)
US329134A
Cited
US708289A
Cited
US708288A
Cited
US1329531A
Cited
US1771760A
Cited
US1839752A
Cited
US2247870A
Cited
US2468543A
Cited
US2544565A
Cited
US3190535A
Cited
US3135456A
Cited
US3163344A
Cited
US3228710A
Cited
US3330467A
Cited
US3343660A
Cited
DE2441037A1
Cited
DE2703432A1
Cited
US4254862A
Cited
US4232816A
Cited
US4230261A
Cited
US4245773A
Cited
US4266713A
Cited
US4304353A
Cited
US4360147A
Cited
US4389013A
Cited
US4413726A
Cited
US4431128A
Cited
US4570845A
Cited
US4909432A
Cited
US5039003A
Cited
US4792085A
Cited
US4877178A
Cited
WO1992009486A1
Cited
US5098013A
Cited
US5205476A
Cited
US5221040A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-07-25 | 1998-01-24 | 1998-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-07-25 | 2002-01-24 | 2002-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-07-25 | 2006-01-24 | 2006-07-26 | $7700.00 | Window Closed / Lapsed |