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US5916508A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of forming partition matrix

Assignee: Bradford Co Inc
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Filing: 1997-04-16
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Granted: 1999-06-29
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Expires: 2017-04-16
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Abstract

Abstract A non-disassembling partition assembly for insertion into a container for dividing the space inside the container into separated cells. The assembly comprises a plurality of first slotted partitions intersecting with a plurality of second slotted partitions to form a matrix. The matrix is held together in a non-disassembling collapsible relationship by a plurality of weldments at a plurality of intersections. Each weldment is formed by injection of molten plastic between opposed face plies of intersecting partitions at an intersection at a sufficiently high temperature, to at least partially melt the spacers betweeen the face plies of the intersecting partitions to create a weldment therebetween. The weldments are formed of a plastic which is preferably the same type of plastic as that from which the partitions are made in order to aid in the recyclability of the partition assembly.

Inventors

  • 👤 Judson A. Bradford

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 19:06
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/70; B29C65/02; B29C65/022; B29C65/028; B29C65/10; B29C65/40; B29C65/48; B29C65/4805; B29C65/481; B29C65/4815; B29C65/52; B29C65/54; B29C65/542; B29C65/56; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/13; B29C66/137; B29C66/40; B29C66/41; B29C66/43; B29C66/434; B29C66/4346; B29C66/43461; B29C66/50; B29C66/51; B29C66/53; B29C66/534; B29C66/5346; B29C66/80; B29C66/83; B29C66/832; B29C66/8322; B29C67/00; B29C67/0044; B32; B32B; B32B3/00; B32B3/26; B32B3/266; B65; B65D; B65D25/00; B65D25/02; B65D25/04; B65D25/10; B65D5/00; B65D5/42; B65D5/44; B65D5/48; B65D5/48024; B65D5/48026; B65D5/48038; B29C65/18; B29C66/432; B29C66/4326; B29C66/438; B29C66/70; B29C66/71; B29K; B29K2105/00; B29K2105/26; B29L; B29L2024/00; B29L2024/006; B29L2031/00; B29L2031/712; B29L2031/7162; Y; Y10; Y10S; Y10S229/00; Y10S229/939

Claims Analysis

Total Claims: 15
Claim 1
Independent Claim 179 words
A method of forming a non-disassembling intersecting partition matrix, said matrix comprising at least one first slotted partition intersecting with at least one second slotted partition, each first and second slotted partition being made of double face plastic having multiple spacers sandwiched between two face plies, each first slotted partition having at least one slot extending inwardly from an edge of the first slotted partition, each second slotted partition having at least one slot extending inwardly from an edge of the second slotted partition, said method comprising the steps of: engaging said at least one slot of said at least one first slotted partition with said at least one slot of said at least one second slotted partition at an intersection to form a matrix; injecting molten plastic into a void between the face plies of intersecting partitions at at least one intersection, said void being formed at least in part by melting a portion of at least one spacer; and allowing said molten plastic to cool and solidify to permanently secure the intersecting partitions in a non-disassembling relationship.
Claim 2
Independent Claim 179 words
A method of forming a non-disassembling intersecting partition matrix, said matrix comprising at least one first slotted partition intersecting with at least one second slotted partition, each first and second slotted partition being made of double face plastic having multiple spacers sandwiched between two face plies, each first slotted partition having at least one slot extending inwardly from an edge of the first slotted partition, each second slotted partition having at least one slot extending inwardly from an edge of the second slotted partition, said method comprising the steps of: engaging said at least one slot of said at least one first slotted partition with said at least one slot of said at least one second slotted partition at an intersection to form a matrix; injecting molten plastic into a void between the face plies of intersecting partitions at at least one intersection, said void being formed at least in part by melting a portion of at least one spacer; and allowing said molten plastic to cool and solidify to permanently secure the intersecting partitions in a non-disassembling relationship.
Claim 3
Dependent Claim 25 words
The method of forming a non-disassembling intersecting partition matrix of claim 1 wherein said void is formed by a heated end of an injection nozzle.
Claim 4
Independent Claim 184 words
A method of forming a non-disassembling intersecting partition matrix, said matrix comprising a plurality of first slotted partitions intersecting with a plurality of second slotted partitions, each first and second slotted partition being made of double face corrugated plastic having multiple corrugations sandwiched between two face plies so as to define hollow parallel flutes therebetween, each first slotted partition having a series of slots extending inwardly from an edge of the first slotted partition, each second slotted partition having a series of slots extending inwardly from an edge of the second slotted partition, said method comprising the steps of: engaging at least one slot of a first slotted partition with a slot of a second slotted partition at an intersection to form a matrix; lowering a heated nozzle into a central flute at said intersection, releasing molten plastic through an orifice in said heated nozzle into said central flute, said molten plastic at least partially melting the corrugations between the face plies of the intersecting partitions. allowing said molten plastic to cool and solidify to permanently secure the intersecting partitions in a non-disassembling relationship.
Claim 5
Independent Claim 184 words
A method of forming a non-disassembling intersecting partition matrix, said matrix comprising a plurality of first slotted partitions intersecting with a plurality of second slotted partitions, each first and second slotted partition being made of double face corrugated plastic having multiple corrugations sandwiched between two face plies so as to define hollow parallel flutes therebetween, each first slotted partition having a series of slots extending inwardly from an edge of the first slotted partition, each second slotted partition having a series of slots extending inwardly from an edge of the second slotted partition, said method comprising the steps of: engaging at least one slot of a first slotted partition with a slot of a second slotted partition at an intersection to form a matrix; lowering a heated nozzle into a central flute at said intersection, releasing molten plastic through an orifice in said heated nozzle into said central flute, said molten plastic at least partially melting the corrugations between the face plies of the intersecting partitions. allowing said molten plastic to cool and solidify to permanently secure the intersecting partitions in a non-disassembling relationship.
Claim 6
Dependent Claim 29 words
The method of forming a non-disassembling intersecting partition matrix of claim 3 wherein the molten plastic flows through a cross shaped discharge orifice and forms a cross shaped weldment.
Claim 7
Independent Claim 225 words
A method of forming a non-disassembling intersecting partition matrix, said matrix comprising a plurality of first slotted partitions intersecting with a plurality of second slotted partitions, each first and second slotted partition being made of double face corrugated plastic having multiple corrugations sandwiched between two face plies so as to define hollow parallel flutes therebetween, each first slotted partition having a series of slots, each slot extending from an edge of the first slotted partition towards the mid-point of said first slotted partition, each second slotted partition having a series of slots, each slot extending from an edge of the second slotted partition towards the mid-point of the second slotted partition, said method comprising the steps of: engaging a slot of a first slotted partition with a slot of a second slotted partition at an intersection to form a matrix; placing a supporting net over one edge of the matrix; injecting molten plastic into at least one flute at at least one intersection to permanently secure the intersecting partitions in a non-disassembling relationship and secure the supporting net to the intersecting partitions, said supporting net and said partitions defining a plurality of holding cells, each holding cell being capable of storing one or more items, said supporting net enabling items placed in the individual holding cells to rest upon and be supported by the net.
Claim 8
Independent Claim 225 words
A method of forming a non-disassembling intersecting partition matrix, said matrix comprising a plurality of first slotted partitions intersecting with a plurality of second slotted partitions, each first and second slotted partition being made of double face corrugated plastic having multiple corrugations sandwiched between two face plies so as to define hollow parallel flutes therebetween, each first slotted partition having a series of slots, each slot extending from an edge of the first slotted partition towards the mid-point of said first slotted partition, each second slotted partition having a series of slots, each slot extending from an edge of the second slotted partition towards the mid-point of the second slotted partition, said method comprising the steps of: engaging a slot of a first slotted partition with a slot of a second slotted partition at an intersection to form a matrix; placing a supporting net over one edge of the matrix; injecting molten plastic into at least one flute at at least one intersection to permanently secure the intersecting partitions in a non-disassembling relationship and secure the supporting net to the intersecting partitions, said supporting net and said partitions defining a plurality of holding cells, each holding cell being capable of storing one or more items, said supporting net enabling items placed in the individual holding cells to rest upon and be supported by the net.
Claim 9
Dependent Claim 29 words
The method of forming a non-disassembling intersecting partition matrix of claim 5 wherein the molten plastic is injected into a plurality of said flutes at a plurality of intersections.
Claim 10
Dependent Claim 49 words
The method of forming a non-disassembling intersecting partition matrix of claim 5 wherein the molten plastic is injected into a plurality of additional flutes, said additional flutes being at locations in which the supporting net crosses a partition in order to secure said supporting net to said partition matrix.
Claim 11
Dependent Claim 30 words
The method of forming a non-disassembling intersecting partition matrix of claim 5 wherein said weldments and said supporting net are of the same general plastic composition for ease of recyclability.
Claim 12
Independent Claim 218 words
A method of forming a non-disassembling intersecting partition matrix, said matrix comprising a plurality of first slotted partitions intersecting with a plurality of second slotted partitions, each first and second slotted partition being made of double face corrugated plastic having multiple spacers sandwiched between two planar face plies, each first slotted partition having a series of slots, each slot extending inwardly from an edge of the first slotted partition, each second slotted partition having a series of slots, each slot extending inwardly from an edge of the second slotted partition, said method comprising the steps of: engaging the slots of the first slotted partitions with the slots of the second slotted partitions at intersections to form a matrix, said partitions of said matrix defining a plurality of openings in a first plane, said first plane being defined by coplanar edges of said partitions; placing a supporting net comprising crisscrossing individual net members over the intersecting partitions generally in said first plane such that said individual net members pass over said openings, and securing the supporting net to the intersecting partitions by injecting molten plastic between the planar face plies at selected intersections and allowing said molten plastic to cool; and turning said partition assembly over so that items may rest upon and be supported by the supporting net.
Claim 13
Independent Claim 218 words
A method of forming a non-disassembling intersecting partition matrix, said matrix comprising a plurality of first slotted partitions intersecting with a plurality of second slotted partitions, each first and second slotted partition being made of double face corrugated plastic having multiple spacers sandwiched between two planar face plies, each first slotted partition having a series of slots, each slot extending inwardly from an edge of the first slotted partition, each second slotted partition having a series of slots, each slot extending inwardly from an edge of the second slotted partition, said method comprising the steps of: engaging the slots of the first slotted partitions with the slots of the second slotted partitions at intersections to form a matrix, said partitions of said matrix defining a plurality of openings in a first plane, said first plane being defined by coplanar edges of said partitions; placing a supporting net comprising crisscrossing individual net members over the intersecting partitions generally in said first plane such that said individual net members pass over said openings, and securing the supporting net to the intersecting partitions by injecting molten plastic between the planar face plies at selected intersections and allowing said molten plastic to cool; and turning said partition assembly over so that items may rest upon and be supported by the supporting net.
Claim 14
Dependent Claim 32 words
The method of forming a non-disassembling intersecting partition matrix of claim 9 further comprising placing additional weldments at select locations where the individual net members of the supporting net cross a partition.
Claim 15
Dependent Claim 33 words
The method of forming a non-disassembling intersecting partition matrix of claim 9 wherein said molten plastic, said partitions and said supporting net are of the same general plastic composition for ease of recyclability.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2002-06-28 2002-12-28 2003-06-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2006-06-28 2006-12-28 2007-06-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2010-06-28 2010-12-28 2011-06-29 $7700.00 Window Closed / Lapsed

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