US3648573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for forming cartons
Assignee: FIBRCBOARD CORP
•
Filing: 1970-04-29
•
Granted: 1972-03-14
•
Expires: 1990-04-29
Abstract
Abstract An apparatus for forming cartons comprises feeding means, including a pivoted suction cup and cooperating vacuum belt conveying means, for individually feeding carton blanks to a forming means. Such forming means comprises a rotary table having a plurality of female forming dies radially positioned thereon. A ram-type male die is reciprocally mounted above the table to cooperate with each forming die to form the carton blank into tray form. Gas burner type nozzle means are mounted adjacent to the table to discharge heated air onto partially folded corners of a polyethylene-coated carton blank prior to when it is fully formed in the forming die. After the corners are compressed and sealed, stripping means engage the formed carton to move it onto a discharge conveyor.
Inventors
- 👤 Alfred B Le Febvre
- 👤 Helmut E W Masch
- 👤 Louis Robert
- 👤 Hugh B Morse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:34
CPC Classifications
B; B31; B31B; B31B50/00; B31B50/005
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
181 words
An apparatus for forming cartons comprising feeding, forming and discharge stations arranged in series, said feeding station comprising a magazine for retaining a plurality of flattened carton blanks therein, removal means for individUally removing said carton blanks from said magazine and conveying means for receiving said blanks from said removal means and for transferring each blank tangentially to a rotary table of said forming station, said forming station further comprising at least one pair of cooperating male and female die means disposed adjacent to the periphery of said table for folding and forming a carton therein and actuating means for moving said male and female die means into mating relationship to form said carton upon rotation of said table, said male die means reciprocally mounted above said table and said female die means fixedly mounted on said table, and locating means positioned about said female die means and cooperating with said conveying means for receiving and guiding a tangentially fed carton blank and for pivoting such carton blank into precise registery over said female die means upon rotation of said table.
Claim 2
Independent Claim
181 words
An apparatus for forming cartons comprising feeding, forming and discharge stations arranged in series, said feeding station comprising a magazine for retaining a plurality of flattened carton blanks therein, removal means for individUally removing said carton blanks from said magazine and conveying means for receiving said blanks from said removal means and for transferring each blank tangentially to a rotary table of said forming station, said forming station further comprising at least one pair of cooperating male and female die means disposed adjacent to the periphery of said table for folding and forming a carton therein and actuating means for moving said male and female die means into mating relationship to form said carton upon rotation of said table, said male die means reciprocally mounted above said table and said female die means fixedly mounted on said table, and locating means positioned about said female die means and cooperating with said conveying means for receiving and guiding a tangentially fed carton blank and for pivoting such carton blank into precise registery over said female die means upon rotation of said table.
Claim 3
Dependent Claim
20 words
The invention of claim 1 wherein said female forming die defines a forming chamber extending completely through said rotary table.
Claim 4
Dependent Claim
37 words
The invention of claim 1 wherein at least one of said female forming and male dies is jacketed therearound with a chamber means and means for circulating a coolant through said chamber means for heat sink purposes.
Claim 5
Dependent Claim
22 words
The invention of claim 3 wherein each of said female forming and male dies has one of said chamber means jacketed therearound.
Claim 6
Dependent Claim
45 words
The invention of claim 1 wherein said actuating means comprises means forming a stationary cam track mounted above said table and means attached to said male die and guided by said cam track for linearly moving said male die relative to said female forming die.
Claim 7
Dependent Claim
11 words
The invention of claim 5 wherein said cam track is endless.
Claim 8
Dependent Claim
23 words
The invention of claim 5 further comprising guide means operatively associated with said actuating means for guiding linear movements of said male die.
Claim 9
Dependent Claim
21 words
The invention of claim 1 wherein a plurality of said male and female die means are radially disposed about said table.
Claim 10
Dependent Claim
57 words
The invention of claim 1 wherein said conveying means comprises at least one perforated belt movably mounted adjacent to said removal means, a support means at least partially mounting said perforated belt thereon, chamber means formed in said support means to be exposed to said perforated belt and means for drawing a vacuum in said chamber means.
Claim 11
Dependent Claim
35 words
The invention of claim 9 further comprising additional conveying means mounted between said first-mentioned conveying means and said table for receiving said blanks from said first-mentioned conveying means and for transferring them to said table.
Claim 12
Dependent Claim
19 words
The invention of claim 9 wherein said removal means comprises a suction cup movably mounted adjacent to said magazine.
Claim 13
Dependent Claim
43 words
The invention of claim 1 wherein said forming station further comprises nozzle means mounted adjacent to said table for discharging a heated fluid onto portions of an adhesively treated carton blank prior to its formation by said cooperating male and female die means.
Claim 14
Dependent Claim
35 words
The invention of claim 12 wherein said nozzle means comprises at least one set of heaters circularly disposed adjacent to said female die means for discharging said heated fluid theretowards upon rotation of said table.
Claim 15
Dependent Claim
27 words
The invention of claim 13 wherein two sets of said heaters are fixedly mounted adjacent to said female die means, said sets positioned to oppose each other.
Claim 16
Dependent Claim
49 words
The invention of claim 13 wherein each of said heaters comprises a combustion chamber, means for communicating a gaseous fuel to said combustion chamber, means for communicating said combustion chambers with each other and ignition means for substantially simultaneously igniting said gaseous fuel in all of said combustion chambers.
Claim 17
Dependent Claim
43 words
The invention of claim 1 wherein female die is formed completely through said table and said discharge station comprises stripping means positioned beneath said table for stripping a formed carton off said male die means when it descends through said female die meanS.
Claim 18
Dependent Claim
19 words
The invention of claim 16 wherein said discharge station further comprises a discharge conveyor for receiving said formed carton.
Claim 19
Independent Claim
82 words
A method for forming a carton comprising the steps of conveying a flattened carton blank tangentially with respect to a rotating table, positioning said flattened carton blank over a hollow female forming die by engaging edges thereof with locating means disposed about said female forming die, said female forming die being fixedly mounted on said rotary table adjacent to the periphery thereof, and rotating said table while simultaneously moving a male die into said female forming die to form said carton therein.
Claim 20
Independent Claim
82 words
A method for forming a carton comprising the steps of conveying a flattened carton blank tangentially with respect to a rotating table, positioning said flattened carton blank over a hollow female forming die by engaging edges thereof with locating means disposed about said female forming die, said female forming die being fixedly mounted on said rotary table adjacent to the periphery thereof, and rotating said table while simultaneously moving a male die into said female forming die to form said carton therein.
Claim 21
Dependent Claim
37 words
The invention of claim 18 further comprising the step of discharging a heated fluid onto corner folds of said carton prior to when said carton is fully formed by said dies to seal said corner folds together.
Claim 22
Dependent Claim
28 words
The invention of claim 18 further comprising the steps of moving said male die and formed carton below said table and stripping said carton off said male die.
Claim 23
Dependent Claim
36 words
The invention of claim 18 further comprising the steps of conveying said flattened carton blank toward said table on a belt and simultaneously subjecting said carton blank to a vacuum to hold it on said belt.
References Cited (Backward Citations)
US2414574A
Cited
US2583641A
Cited
US3000275A
Cited
US2998680A
Cited
US3062105A
Cited
US3187648A
Cited
US3303761A
Cited
US3331728A
Cited
US3421416A
Cited
US3342115A
Cited
US3364825A
Cited
US3511139A
Cited
US3456564A
Cited
US3533332A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-14 | 1975-09-13 | 1976-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-14 | 1979-09-13 | 1980-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-14 | 1983-09-13 | 1984-03-14 | $7700.00 | Window Closed / Lapsed |