US3590553A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refill bag pack inserting mechanism for automatic baggers
Assignee: Formost Packaging Machines Inc
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Filing: 1968-08-01
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Granted: 1971-07-06
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Expires: 1988-08-01
Abstract
Abstract A plate carrying a pack of bags adjacent to the loading station of an automatic bagger is engaged with and raised by rotation of upright screws as bags are used from the pack. A second plate underlying the first plate and also engaged with and raisable by the screws supports a refill bag pack closely underlying the first plate so that the first plate an be withdrawn enabling the first bag pack to be engaged and supported by the refill bag pack. Spindles extending through apertures in the upper bag pack maintain the bags in registry and transfer spindles enable apertures of a refill bag pack to be threaded on the same spindles as are engaged by the apertures of the upper bag pack. The screws are rotated intermittently to raise the bag packs by a cam-driven overrunning clutch.
Inventors
- 👤 Alvin C Formo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:54
CPC Classifications
B; B65; B65B; B65B43/00; B65B43/12; B65B43/14
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
178 words
In a bagger, first bag pack supporting means supporting a first bag pack adjacent to a loading station, second bag pack supporting means underlying said first bag pack supporting means and supporting a refill bag pack beneath said first bag pack supporting means, raising means for raising said second bag pack supporting means, rest means for supporting said second bag pack supporting means beneath said raising means and guided for movement relative to said raising means to facilitate orientation of said second bag pack supporting means relative to said raising means for engagement therewith, first spindle means carried by the bagger adjacent to the loading station and engaged in apertures in the bags of the first bag pack for effecting registration of the bags thereof, and transfer spindle means carried by said rest means and engageable with apertures in the refill bag pack on said second bag pack supporting means and alignable with said first spindle means for transfer of the registering apertures of the refill bag pack from said transfer spindle means to said first spindle means.
Claim 2
Dependent Claim
178 words
In a bagger, first bag pack supporting means supporting a first bag pack adjacent to a loading station, second bag pack supporting means underlying said first bag pack supporting means and supporting a refill bag pack beneath said first bag pack supporting means, raising means for raising said second bag pack supporting means, rest means for supporting said second bag pack supporting means beneath said raising means and guided for movement relative to said raising means to facilitate orientation of said second bag pack supporting means relative to said raising means for engagement therewith, first spindle means carried by the bagger adjacent to the loading station and engaged in apertures in the bags of the first bag pack for effecting registration of the bags thereof, and transfer spindle means carried by said rest means and engageable with apertures in the refill bag pack on said second bag pack supporting means and alignable with said first spindle means for transfer of the registering apertures of the refill bag pack from said transfer spindle means to said first spindle means.
Claim 3
Dependent Claim
39 words
In the bagger defined in claim 1, the transfer spindle means including spindles, spindle-receiving tubes into which said spindles can be retracted lengthwise, and spring means in said tubes urging said spindles into positions extended lengthwise from said tubes.
Claim 4
Dependent Claim
88 words
In a bagger, a bag pack supporting means supporting a first bag pack adjacent to a loading station, first spindle means mounted on the bagger adjacent to said loading station and engaged with registering apertures of a first bag pack supported by said bag pack supporting means, and transfer spindle means engaged with registering apertures of a refill bag pack and engageable with said first spindle means for guiding movement of the apertures in the refill bag pack from said transfer spindle means to said first spindle means.
Claim 5
Dependent Claim
88 words
In a bagger, a bag pack supporting means supporting a first bag pack adjacent to a loading station, first spindle means mounted on the bagger adjacent to said loading station and engaged with registering apertures of a first bag pack supported by said bag pack supporting means, and transfer spindle means engaged with registering apertures of a refill bag pack and engageable with said first spindle means for guiding movement of the apertures in the refill bag pack from said transfer spindle means to said first spindle means.
Claim 6
Dependent Claim
40 words
In the bagger defined in claim 1, one of the spindle means having tubular spindle ends and the other spindle means having spindle ends engageable in said tubular spindle ends for arranging spindles of the two spindle means in alignment.
Claim 7
Dependent Claim
34 words
In the bagger defined in claim 1, the first spindle means including upright spindle portions, generally horizontal spindle portions and curved spindle portions connecting said upright spindle portions and said generally horizontal spindle portions.
Claim 8
Dependent Claim
64 words
In a bagger, bag pack supporting means for supporting a first bag pack adjacent to a loading station and a refill bag pack beneath the first bag pack, and bag pack lip engaging means engageable beneath at least part of the first bag pack lip portion and movable into a corresponding position engaged beneath at least part of the refill bag pack lip portion.
Claim 9
Dependent Claim
64 words
In a bagger, bag pack supporting means for supporting a first bag pack adjacent to a loading station and a refill bag pack beneath the first bag pack, and bag pack lip engaging means engageable beneath at least part of the first bag pack lip portion and movable into a corresponding position engaged beneath at least part of the refill bag pack lip portion.
Claim 10
Dependent Claim
58 words
In the bagger defined in claim 6, the bag pack lip engaging means including a hinged leaf and spring-pressed supporting means for said hinged leaf elevationally movable for transfer of said leaf from a position engaged beneath the lip portion of the first bag pack to the position engaged beneath the lip portion of the refill bag pack.
Claim 11
Dependent Claim
170 words
In a bagger, first bag pack supporting means supporting a first bag pack adjacent to a loading station, second bag pack supporting means underlying the first bag pack and supporting a refill bag pack in position for supporting the first bag pack in substitution for said first bag pack supporting means supporting the first bag pack, common raising means engageable simultaneously by both of said bag pack supporting means and always moving both of said bag pack supporting means simultaneously when engaged with said common raising means, and latch means carried by said first bag pack supporting means and retractable from said common raising means in any selected raised position of said first bag pack supporting means to release said first bag pack supporting means from said common raising means in suCh a selected raised position for removal of said first bag pack supporting means from between the first bag pack and the refill bag pack to enable the first bag pack to be supported by the refill bag pack.
Claim 12
Dependent Claim
170 words
In a bagger, first bag pack supporting means supporting a first bag pack adjacent to a loading station, second bag pack supporting means underlying the first bag pack and supporting a refill bag pack in position for supporting the first bag pack in substitution for said first bag pack supporting means supporting the first bag pack, common raising means engageable simultaneously by both of said bag pack supporting means and always moving both of said bag pack supporting means simultaneously when engaged with said common raising means, and latch means carried by said first bag pack supporting means and retractable from said common raising means in any selected raised position of said first bag pack supporting means to release said first bag pack supporting means from said common raising means in suCh a selected raised position for removal of said first bag pack supporting means from between the first bag pack and the refill bag pack to enable the first bag pack to be supported by the refill bag pack.
Claim 13
Dependent Claim
42 words
In the bagger defined in claim 8, the raising means including a plurality of screw shafts and the first bag pack supporting means including a plate disengageably engageable with at least one of said screw shafts for elevation by conjoint rotation thereof.
Claim 14
Dependent Claim
65 words
In a bagger, bag pack supporting means supporting a bag pack, raising means engageable by said bag pack supporting means for raising the same, and rest means beneath said raising means for supporting said bag pack supporting means and guided for movement relative to said raising means to facilitate orientation of said bag pack supporting means relative to said raising means for raising engagement therewith.
Claim 15
Dependent Claim
65 words
In a bagger, bag pack supporting means supporting a bag pack, raising means engageable by said bag pack supporting means for raising the same, and rest means beneath said raising means for supporting said bag pack supporting means and guided for movement relative to said raising means to facilitate orientation of said bag pack supporting means relative to said raising means for raising engagement therewith.
Claim 16
Dependent Claim
101 words
In a bagger, raising means including a plurality of upright screw shafts, and bag pack supporting means including shelf means supporting a bag pack and latch means movable relative to said shelf means and engageable with the threads of at least one of said screw shafts for raising said shelf means by rotation of said screw shafts and movable relative to said shelf means and to the threads of said screw shafts at various locations of said shelf means along the lengths of said screw shafts into thread-disengaged position for separation of said bag pack supporting means from said screw shafts.
Claim 17
Dependent Claim
101 words
In a bagger, raising means including a plurality of upright screw shafts, and bag pack supporting means including shelf means supporting a bag pack and latch means movable relative to said shelf means and engageable with the threads of at least one of said screw shafts for raising said shelf means by rotation of said screw shafts and movable relative to said shelf means and to the threads of said screw shafts at various locations of said shelf means along the lengths of said screw shafts into thread-disengaged position for separation of said bag pack supporting means from said screw shafts.
Claim 18
Dependent Claim
37 words
In the bagger defined in claim 11, the latch means of the bag pack supporting means including nut means engageable with the thread of a screw shaft and retractable therefrom by movement relative to the shelf means
Claim 19
Dependent Claim
36 words
In the bagger defined in claim 11, the latch means being disengageable from the thread of a screw shaft at various locations along the length of such screw shaft between the ends of its screw thread.
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) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |