Patent US4848580A successfully refreshed from Google Patents.
US4848580A
Expired / Lapsed
US
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Nestable and stackable container for bulk material
Assignee: PLASTECH INTERNATIONAL Inc JOHN FITCH INDUSTRIAL PARK A CORP OF
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Filing: 1984-04-23
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Granted: 1989-07-18
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Expires: 2004-04-23
Abstract
Abstract A container for handling and storing large quantities of bulk material such as food products, comprises a unitary molded plastic liquid-tight single wall tank or tub having a bottom and four upwardly extending walls, corner nesting stops located at each corner at the upper end of the container, a lip along the upper edges of the walls, and gussets at the top of the walls supporting the lip. A lid fits over the container lip and has a skirt that is blended inwardly toward the lip so as not to catch on a lip or lid of an adjacent container.
Inventors
- 👤 Thomas W. Wise
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:20
CPC Classifications
B; B65; B65D; B65D21/00; B65D21/02; B65D21/0233; B65D21/0209; B65D21/0217; B65D21/0223
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
123 words
A plastic container for handling and storing large quantities of bulk material such as food products, comprising a molded plastic tank having a bottom, four upwardly extending side walls, a lip along the upper edges of the four upwardly extending side walls, said side walls including nesting stop means for facilitating nesting and unnesting of the container in a similar container by limiting the distance an upper nesting container extends into a lower nesting container, said nesting stop means including sloping gusset means sloping outwardly from the stop to the lip, and said side walls further including lip support sloping gusset means, sloping outwardly from the side walls to the lip for supporting the lip at the top of the four side walls.
Claim 2
Dependent Claim
123 words
A plastic container for handling and storing large quantities of bulk material such as food products, comprising a molded plastic tank having a bottom, four upwardly extending side walls, a lip along the upper edges of the four upwardly extending side walls, said side walls including nesting stop means for facilitating nesting and unnesting of the container in a similar container by limiting the distance an upper nesting container extends into a lower nesting container, said nesting stop means including sloping gusset means sloping outwardly from the stop to the lip, and said side walls further including lip support sloping gusset means, sloping outwardly from the side walls to the lip for supporting the lip at the top of the four side walls.
Claim 3
Dependent Claim
22 words
The container of claim 1, also comprising a lid means adapted to fit onto the lip of the tank for covering it.
Claim 4
Dependent Claim
32 words
The container of claim 1, said lip comprising a lip ledge at the top of the side walls and a lip wall extending upwardly from the outer portion of the lip ledge.
Claim 5
Dependent Claim
59 words
The container of claim 1, said bottom including three parallel, laterally spaced, downwardly extending, hollow ridges forming supporting members for the container being integrally molded in said bottom, said ridges extending substantially the full length of the bottom of the tank, and establishing between adjacent pairs of ridges, spaces for entry of tines of a forklift or pallet jack.
Claim 6
Dependent Claim
22 words
The container of claim 1, said nesting means being nesting stops located in each corner of the upper end of the container.
Claim 7
Dependent Claim
34 words
The container of claim 1, including corner gusset means for guiding a tank into position adjacent another tank, for supporting said lip, and for acting as bumpers to protect the tank corners from damage.
Claim 8
Dependent Claim
295 words
A plastic container for handling and storing large quantities of bulk material such as food products, comprising a molded plastic tank having a bottom, four upwardly extending side walls, a lip along the upper edges of the four upwardly extending side walls, said side walls including nesting stop means for facilitating nesting and unnesting of the container in a similar container by limiting the distance an upper nesting container extends into a lower nesting container, said nesting stop means including sloping corner gusset means sloping outwardly from the stop to the lip, and said side walls further including lip support sloping gusset means sloping outwardly from the side walls to the lip for supporting the lip at the top of the four side walls, said lid support means for supporting the lip being gussets sloping outwardly from the side walls of the container to the outer portion of the lip, and lid means adapted to fit onto the lip of the tank for covering it, said lip comprising a lip ledge at the top of the side walls and a lip wall extending upwardly from the outer portion of the lip ledge, said bottom including three parallel, laterally spaced, downwardly extending, hollow ridges forming supporting members for the container being integrally molded in said bottom, said ridges extending substantially the full length of the bottom of the tank, and establishing between adjacent pairs of ridges, spaces for entry of tines of a forklift or pallet jack, said nesting stop means being nesting stops located in each corner of the upper end of the container, said corner gusset means being adapted for guiding a tank into position adjacent another tank, for supporting said lip, and for acting as bumpers to protect the tank corners from damage.
Claim 9
Dependent Claim
295 words
A plastic container for handling and storing large quantities of bulk material such as food products, comprising a molded plastic tank having a bottom, four upwardly extending side walls, a lip along the upper edges of the four upwardly extending side walls, said side walls including nesting stop means for facilitating nesting and unnesting of the container in a similar container by limiting the distance an upper nesting container extends into a lower nesting container, said nesting stop means including sloping corner gusset means sloping outwardly from the stop to the lip, and said side walls further including lip support sloping gusset means sloping outwardly from the side walls to the lip for supporting the lip at the top of the four side walls, said lid support means for supporting the lip being gussets sloping outwardly from the side walls of the container to the outer portion of the lip, and lid means adapted to fit onto the lip of the tank for covering it, said lip comprising a lip ledge at the top of the side walls and a lip wall extending upwardly from the outer portion of the lip ledge, said bottom including three parallel, laterally spaced, downwardly extending, hollow ridges forming supporting members for the container being integrally molded in said bottom, said ridges extending substantially the full length of the bottom of the tank, and establishing between adjacent pairs of ridges, spaces for entry of tines of a forklift or pallet jack, said nesting stop means being nesting stops located in each corner of the upper end of the container, said corner gusset means being adapted for guiding a tank into position adjacent another tank, for supporting said lip, and for acting as bumpers to protect the tank corners from damage.
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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) | 1992-07-17 | 1993-01-16 | 1993-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-17 | 1997-01-16 | 1997-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-17 | 2001-01-16 | 2001-07-18 | $7700.00 | Window Closed / Lapsed |