US3761072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for erecting cartons
Assignee: RA Jones and Co Inc
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Filing: 1971-08-19
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Granted: 1973-09-25
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Expires: 1991-08-19
Abstract
Abstract An apparatus for erecting cartons including a mechanism for separating one carton blank from a stack of carton blanks. The separator mechanism includes vacuum cups for drawing one carton blank downwardly from the stack in timed relation with a feeder mechanism. The cups themselves are mounted on long elastic stems permitting contact with a carton blank even after the blank is contacted and moved by the feeder mechanism.
Inventors
- 👤 E Deering
- 👤 W Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:22
CPC Classifications
B; B65; B65B; B65B43/00; B65B43/12; B65B43/14; B65B43/16; B65B43/18; B65B43/185
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
163 words
In a mechanism for feeding carton blanks from a stack and having conveyor lugs passing under the stack in the machine direction to engage the lowermost carton, at least one suction cup mounted below said stack for engagement with the lowermost carton, an actuator for raising and lowering said cup in timed relation to said conveyor lug whereby said cup is in a lowered position when said lug is in position to engage the trailing edge of a carton, the improvement comprising, means for applying a vacuum to said cup and maintaining the vacuum on said cup at least until a carton has been engaged by a lug and advanced by the lug in the machine direction, and a long flexible hollow stem of an elastomer connecting said cup to said vacuum applying means and providing the sole means for mounting said cup on said actuator so that the cup is freely supported for swinging on its stem with respect to said actuator.
Claim 2
Dependent Claim
163 words
In a mechanism for feeding carton blanks from a stack and having conveyor lugs passing under the stack in the machine direction to engage the lowermost carton, at least one suction cup mounted below said stack for engagement with the lowermost carton, an actuator for raising and lowering said cup in timed relation to said conveyor lug whereby said cup is in a lowered position when said lug is in position to engage the trailing edge of a carton, the improvement comprising, means for applying a vacuum to said cup and maintaining the vacuum on said cup at least until a carton has been engaged by a lug and advanced by the lug in the machine direction, and a long flexible hollow stem of an elastomer connecting said cup to said vacuum applying means and providing the sole means for mounting said cup on said actuator so that the cup is freely supported for swinging on its stem with respect to said actuator.
Claim 3
Dependent Claim
19 words
In a carton erecting machine according to claim 1, said long stem including a rigid sleeve intermediate its ends.
Claim 4
Dependent Claim
168 words
In a mechanism for feeding carton blanks from a stack and having carton advancing means passing under the stack in the machine direction to engage the lowermost carton, at least one suction cup mounted below said stack for engagement with the lowermost carton, an actuator for raising and lowering said cup in timed relation to said carton advancing means whereby said cup is in a lowered position when said advancing means is in position to engage the trailing edge of a carton, the improvement comprising, means for applying a vacuum to said cup and maintaining the vacuum on said cup at least until a carton has been engaged by said advancing means and advanced by the advancing means in the machine direction, and a long flexible hollow stem of an elastomer connecting said cup to said vacuum applying means and providing the sole means for mounting said cup on said actuator so that the cup is freely supported for swinging on its stem with respect to said actuator.
Claim 5
Dependent Claim
168 words
In a mechanism for feeding carton blanks from a stack and having carton advancing means passing under the stack in the machine direction to engage the lowermost carton, at least one suction cup mounted below said stack for engagement with the lowermost carton, an actuator for raising and lowering said cup in timed relation to said carton advancing means whereby said cup is in a lowered position when said advancing means is in position to engage the trailing edge of a carton, the improvement comprising, means for applying a vacuum to said cup and maintaining the vacuum on said cup at least until a carton has been engaged by said advancing means and advanced by the advancing means in the machine direction, and a long flexible hollow stem of an elastomer connecting said cup to said vacuum applying means and providing the sole means for mounting said cup on said actuator so that the cup is freely supported for swinging on its stem with respect to said actuator.
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) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |