Patent US1327468A successfully refreshed from Google Patents.
US3608769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shipping container arrangement
Assignee: Nuclear Engineering Co Inc
•
Filing: 1969-06-09
•
Granted: 1971-09-28
•
Expires: 1989-06-09
Abstract
Abstract An improved hazardous materials shipping container arrangement for providing puncture and penetration resistance, flame resistance, shock absorption and thermal insulation by surrounding a standard drum with a multilayered structure to provide the various desired protections. An energy-absorbing crushable wrap is provided around the drum and extending axially longer than the drum to provide cavities at the drum ends occupied by energy-absorbing crushable plugs, an energyreflective layer, such as aluminum foil, is wound around the outside of the energy-absorbing elements to provide thermal radiation protection. The entire assembly of the drum and the energy-absorbing wrap and the end plugs is positioned inside a lightweight outer steel drum that preferably is slightly greater in size than the energy-absorbing wrap. The outer steel drum or shell provides puncture and penetration resistance and acts as a flame barrier. The inner energy absorption core provides shock absorption and thermal insulation.
Inventors
- 👤 Kenneth A Gablin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:28
CPC Classifications
B; B65; B65D; B65D15/00; B65D15/02
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
393 words
An improved shipping container arrangement of the type adapted to provide thermal and shock insulation to the material being shipped and comprising, in combination: a rigid-walled inner drum member for containing the material to be shipped, and said rigid-walled inner drum member having a top wall, a bottom wall and a peripheral wall defining a shipping cavity; a drum energy-absorbing wrap having a preselected thickness and positioned around said peripheral wall of said inner drum, and said drum energy-absorbing wrap comprising: a first drum flexible laminent layer immediately adjacent said peripheral surface of said inner drum; a drum crushable layer around said first drum flexible laminent layer; and said drum energy-absorbing wrap having top edges and bottom edges in axially spaced-apart relationship from said top wall and said bottom wall of said inner drum to define therewith top and bottom cavities, respectively; a top plug and a bottom plug positioned in said top cavity and said bottom cavity, respectively, and each of said top plug and bottom plug comprising: an outer spiral wound rim having a preselected radial thickness and having external surfaces: a flexible thin sheet plug reflective layer around said external surfaces of said spiral wound rims; said spiral wound rim having top edges and bottom edges, and said top plug and said bottom plug being positioned interiorly of said first drum flexible laminent layer in said top cavity and said bottom cavity, respectively; a substantially coextensive top laminent layer and a bottom laminent layer on said top edges and said bottom edges, respectively, of said spiral wound rim and said top laminent layer and said bottom laminent layer being substantially coextensive with said top wall and said bottom wall of said inner drum member; an outer rigid wall drum member having a base portion and a cover portion, said base portion having a bottom wall and a sidewall extending upwardly from said bottom wall to define a storage cavity, said inner drum member and said drum energyabsorbing wrap and said top plug and said bottom plug being positioned in said storage cavity, said outer rigid drum member having a cover portion detachably coupled to its sidewall; and a flexible, thin sheet drum reflective layer wrapped around the peripheral wall portion of said drum energy-absorbing wrap and spaced a preselected distance from the sidewall of said outer rigid wall drum member.
Claim 2
Dependent Claim
393 words
An improved shipping container arrangement of the type adapted to provide thermal and shock insulation to the material being shipped and comprising, in combination: a rigid-walled inner drum member for containing the material to be shipped, and said rigid-walled inner drum member having a top wall, a bottom wall and a peripheral wall defining a shipping cavity; a drum energy-absorbing wrap having a preselected thickness and positioned around said peripheral wall of said inner drum, and said drum energy-absorbing wrap comprising: a first drum flexible laminent layer immediately adjacent said peripheral surface of said inner drum; a drum crushable layer around said first drum flexible laminent layer; and said drum energy-absorbing wrap having top edges and bottom edges in axially spaced-apart relationship from said top wall and said bottom wall of said inner drum to define therewith top and bottom cavities, respectively; a top plug and a bottom plug positioned in said top cavity and said bottom cavity, respectively, and each of said top plug and bottom plug comprising: an outer spiral wound rim having a preselected radial thickness and having external surfaces: a flexible thin sheet plug reflective layer around said external surfaces of said spiral wound rims; said spiral wound rim having top edges and bottom edges, and said top plug and said bottom plug being positioned interiorly of said first drum flexible laminent layer in said top cavity and said bottom cavity, respectively; a substantially coextensive top laminent layer and a bottom laminent layer on said top edges and said bottom edges, respectively, of said spiral wound rim and said top laminent layer and said bottom laminent layer being substantially coextensive with said top wall and said bottom wall of said inner drum member; an outer rigid wall drum member having a base portion and a cover portion, said base portion having a bottom wall and a sidewall extending upwardly from said bottom wall to define a storage cavity, said inner drum member and said drum energyabsorbing wrap and said top plug and said bottom plug being positioned in said storage cavity, said outer rigid drum member having a cover portion detachably coupled to its sidewall; and a flexible, thin sheet drum reflective layer wrapped around the peripheral wall portion of said drum energy-absorbing wrap and spaced a preselected distance from the sidewall of said outer rigid wall drum member.
Claim 3
Dependent Claim
99 words
The arrangement defined in claim 1 wherein: said cover portion has a top wall and a peripheral side wall, and said cover portion sidewall overlaps a predetermined length of said sidewall of said base portion; said cover portion is detachably coupled to said base portion by a plurality of latch members; a second drum flexible laminent layer is positioned around said drum crushable layer of said drum energy-absorbing wrap; and, said top plug and said bottom plug further comprising: a plurality of crushable disc members positioned inside said spiral wound rim and intermediate said top and bottom laminent layers.
Claim 4
Dependent Claim
73 words
The arrangement defined in claim 2 wherein: said first drum flexible laminent layer and said second drum flexible laminent layer and said plug top laminent layer and said plug bottom laminent layer of said top plug and said bottom laminent layer of said top plug and said bottom plug all comprise a laminent having a wood veneer on the order of 0.1-inch thick base member sandwiched between paper layers on either side thereof.
Claim 5
Dependent Claim
32 words
The arrangement defined in claim 3 wherein: said drum crushable layer and said plug crushable layer of said top plug and said bottom plug all comprise spirally wound, single faced, corrugated cardboard.
Claim 6
Dependent Claim
27 words
The arrangement defined in claim 4 wherein: said drum reflective layer and said plug reflective layer all comprise a plurality of layers of 1 mil aluminum foil.
Claim 7
Dependent Claim
39 words
The arrangement defined in claim 5 wherein: said inner rigid wall drum member comprises a 55-gallon steel drum; and said outer rigid wall drum member comprises cold-rolled steel having a thickness in the range of 20 to 26 gauge.
Claim 8
Dependent Claim
156 words
The arrangement defined in claim 6 wherein: said drum reflective layer is spaced from said outer rigid wall drum member on the order of one-half inch; said preselected radial thickness of said drum energy-absorbing wrap is on the order 4 inches; said preselected radial thickness of each of said spiral wound rims of said top plug and said bottom plug is on the order of 1 inch; said top plug and said bottom plug have an axial length on the order of 6 inches and are positioned in said top cavity and said bottom cavity, respectively; said predetermined length of said overlap of said side wall of said cover portion along said sidewall of said base portion is on the order of 12 inches; said drum energy-absorbing layer has a length between said top and said bottom edges on the order of 48 inches; and said paper of said laminent layers is 42 pound Kraft paper.
Claim 9
Dependent Claim
122 words
A shipping container arrangement for thermal and shock protection of material being shipped, comprising a rigid-walled inner container adapted to enclose material being shipped, a layer of substantially noncrushable flexible laminate material surrounding said inner container and extending past the ends thereof to define open end cavities therewith, a relatively thick energy-absorbing wrap of crushable material jacketing said layer of laminate material, energy-absorbing plugs of crushable material mounted in said end cavities, end layers of substantially noncrushable flexible laminate material in said end cavities interiorly of said plugs, a flexible relatively thin layer of energy reflective material enclosing said energy-absorbing wrap and plugs and said end layers of laminate material, and a rigid-walled outer container surrounding said layer of energy reflective material.
Claim 10
Dependent Claim
122 words
A shipping container arrangement for thermal and shock protection of material being shipped, comprising a rigid-walled inner container adapted to enclose material being shipped, a layer of substantially noncrushable flexible laminate material surrounding said inner container and extending past the ends thereof to define open end cavities therewith, a relatively thick energy-absorbing wrap of crushable material jacketing said layer of laminate material, energy-absorbing plugs of crushable material mounted in said end cavities, end layers of substantially noncrushable flexible laminate material in said end cavities interiorly of said plugs, a flexible relatively thin layer of energy reflective material enclosing said energy-absorbing wrap and plugs and said end layers of laminate material, and a rigid-walled outer container surrounding said layer of energy reflective material.
Claim 11
Dependent Claim
31 words
A shipping container arrangement as described in claim 8, and wherein said inner container is a standard steel shipping dRum, and said outer container is formed of relatively thin sheet metal.
Claim 12
Dependent Claim
25 words
A shipping container arrangement described in claim 8, and wherein said laminate material comprises a layer of wood veneer bonded to outer layers of paper.
Claim 13
Dependent Claim
22 words
A shipping container arrangement as described in claim 8, and wherein said energy-absorbing wrap comprises a plurality of layers of corrugated cardboard.
Claim 14
Dependent Claim
35 words
A shipping container arrangement as described in claim 11, and wherein said layers of corrugated cardboard are provided by a spirally wrapped sheet of cardboard having a smooth inner face and a corrugated outer face.
Claim 15
Dependent Claim
30 words
A shipping container arrangement as described in claim 8, and wherein said energy-absorbing plugs comprise a plurality of corrugated cardboard disks jacketed by a spirally wound sheet of corrugated cardboard.
Claim 16
Dependent Claim
18 words
A shipping container arrangement as described in claim 8, wherein said energy reflective material comprises a metal foil.
Claim 17
Dependent Claim
23 words
A shipping container arrangement as described in claim 14, and wherein said energy reflective material comprises a plurality of layers of aluminum foil.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |