Patent US3708951A successfully refreshed from Google Patents.
US3708951A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealer for random size shipping cases
Assignee: Amcor Flexibles North America Inc
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Filing: 1970-07-27
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Granted: 1973-01-09
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Expires: 1990-07-27
Abstract
Abstract Apparatus for sealing shipping cases including a sealing section adjustable upon the receipt of a signal from a case sensing means to accommodate successive cases of different dimensions and a compression section also adjustable to accommodate such cases, the adjustment of the compression section being controlled by the adjustment of the sealing section and being timed to occur following the entry of a case into the sealing section and the discharge of the previously sealed case from the compression section.
Inventors
- 👤 D Folk
- 👤 C Pavnica
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:28
CPC Classifications
B; B65; B65B; B65B7/00; B65B7/16; B65B7/20
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
491 words
In apparatus for sealing cases which have open upper flaps, a sealing section wherein adhesive is applied to certain of the upper flaps after which the flaps are closed, a compression section wherein pressure is applied to the closed flaps, a continuously operable conveyor including pusher means adapted to come into engagement with a case in the sealing section and to push it through the sealing station and thence through the compression section, a first elevator in said sealing section movable up and down relative to said conveying means to accommodate cases of different heights, flap sealing means carried by and movable with said first elevator for applying adhesive to certain of the said upper flaps of a case in the sealing section and for closing said flaps, means for moving said first elevator up and down to adjust it relative to said conveying means to position said flap sealing means for operation on cases of different heights before the pusher means engages a case in the sealing section, a second elevator in said compression section movable up and down relative to said conveying means to accommodate cases of different heights with their upper flaps closed, means carried by and movable with said second elevator for applying pressure on the closed flaps of a case travelling through the compression section after exiting from the sealing section, reversible drive means for moving said second elevator up and down to adjust it relative to said conveying means to position said pressure-applying means for operation on cases of different heights, a control member carried by one of said elevators extending vertically with respect to said one elevator, a first control carried by the other of said elevators engageable with said control member for controlling the direction of operation of said drive means, said control member having an upper section and a lower section engageable by said first control, and said first control being operable when engaging one of contrOl member sections to effect operation of the drive means in one direction for lowering the second elevator and operable when engaging the other of said control member sections to effect operation of the drive means in the opposite direction for raising the second elevator, and a second control carried by said other elevator engageable with the control member for controlling the extent of movement of the second elevator, said control member having means at the level of the juncture of its said upper and lower sections engageable by said second control for stopping said drive means when said second elevator, in moving either up or down, reaches the level for applying pressure to the case exiting from the sealing section, and means operable in timed relation with said conveyor for initiating operation of said drive means in one direction or the other as determined by the position of the first elevator as a case approaches the compression section during its passage through the sealing section.
Claim 2
Dependent Claim
491 words
In apparatus for sealing cases which have open upper flaps, a sealing section wherein adhesive is applied to certain of the upper flaps after which the flaps are closed, a compression section wherein pressure is applied to the closed flaps, a continuously operable conveyor including pusher means adapted to come into engagement with a case in the sealing section and to push it through the sealing station and thence through the compression section, a first elevator in said sealing section movable up and down relative to said conveying means to accommodate cases of different heights, flap sealing means carried by and movable with said first elevator for applying adhesive to certain of the said upper flaps of a case in the sealing section and for closing said flaps, means for moving said first elevator up and down to adjust it relative to said conveying means to position said flap sealing means for operation on cases of different heights before the pusher means engages a case in the sealing section, a second elevator in said compression section movable up and down relative to said conveying means to accommodate cases of different heights with their upper flaps closed, means carried by and movable with said second elevator for applying pressure on the closed flaps of a case travelling through the compression section after exiting from the sealing section, reversible drive means for moving said second elevator up and down to adjust it relative to said conveying means to position said pressure-applying means for operation on cases of different heights, a control member carried by one of said elevators extending vertically with respect to said one elevator, a first control carried by the other of said elevators engageable with said control member for controlling the direction of operation of said drive means, said control member having an upper section and a lower section engageable by said first control, and said first control being operable when engaging one of contrOl member sections to effect operation of the drive means in one direction for lowering the second elevator and operable when engaging the other of said control member sections to effect operation of the drive means in the opposite direction for raising the second elevator, and a second control carried by said other elevator engageable with the control member for controlling the extent of movement of the second elevator, said control member having means at the level of the juncture of its said upper and lower sections engageable by said second control for stopping said drive means when said second elevator, in moving either up or down, reaches the level for applying pressure to the case exiting from the sealing section, and means operable in timed relation with said conveyor for initiating operation of said drive means in one direction or the other as determined by the position of the first elevator as a case approaches the compression section during its passage through the sealing section.
Claim 3
Dependent Claim
77 words
In apparatus as set forth in claim 1, said control member being carried by said first elevator and said first and second controls being carried by said second elevator, said first control being operable when engaging said upper section to effect operation of the drive means in one direction for lowering the second elevator and operable when engaging said lower section to effect operation of the drive means in the opposite direction for raising the second elevator.
Claim 4
Dependent Claim
128 words
In apparatus as set forth in claim 2, said reversible drive means comprising a reversible electric motor, said first control comprising a first switch having an operating member engaging said control member, said first switch being connected in a circuit for operating the motor in said one direction when its said operating member is in engagement with said lower section and in said opposite direction when said operating member is in engagement with said upper section, and said second control comprising a second switch having an operating member engaging said control member, said second switch being connected in a circuit for energizing the motor when its operating member is above or below said stopping means and deenergizing the motor when its operating member is at said stopping means.
Claim 5
Dependent Claim
42 words
In apparatus as set forth in claim 3, said control member comprising a vertical bar having at one vertical edge offset portions constituting its said upper and lower sections, with said stopping means constituted by a notch in its opposite vertical edge.
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) | 1976-01-09 | 1976-07-10 | 1977-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-09 | 1980-07-10 | 1981-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-09 | 1984-07-10 | 1985-01-09 | $7700.00 | Window Closed / Lapsed |