US4883201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Materials handling equipment
Assignee: Bagfilla Overseas Ltd
•
Filing: 1988-04-19
•
Granted: 1989-11-28
•
Expires: 2008-04-19
Abstract
Abstract There is disclosed apparatus for facilitating discharge of material from a bag having an inner liner. A cord is provided which can be extended from resilient return reel for connection with the top of the liner so that the liner is pulled as the bag empties.
Inventors
- 👤 Barrie Poulton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:18
CPC Classifications
B; B65; B65D; B65D90/00; B65D90/12; B65D90/20; B65D90/205
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
95 words
Apparatus for discharging particulate solid material from an intermediate bulk container in the form of an outer bag having an inner liner comprising frame members having means to which an upper end of said outer bag can be anchored, means for removing slack from said inner liner by withdrawing said inner liner from said outer liner, said means comprising a reel having resilient return means and a cord means on said reel and extendable against the action of said resilient return means and adapted to be connected with an upper end of the inner liner.
Claim 2
Dependent Claim
95 words
Apparatus for discharging particulate solid material from an intermediate bulk container in the form of an outer bag having an inner liner comprising frame members having means to which an upper end of said outer bag can be anchored, means for removing slack from said inner liner by withdrawing said inner liner from said outer liner, said means comprising a reel having resilient return means and a cord means on said reel and extendable against the action of said resilient return means and adapted to be connected with an upper end of the inner liner.
Claim 3
Dependent Claim
98 words
Apparatus for discharging particulate solid material from an intermediate bulk container in the form of an outer bag having an inner liner comprising frame members having means to which an upper end of said outer bag can be anchored, a reel having resilient return means and a cord means on said reel and extendable against the action of said resilient return means and adapted to be connected with an upper end of the inner liner and pulley means having notches on the periphery thereof sized to accommodate a knotted connection between the cord means and the inner liner.
Claim 4
Dependent Claim
98 words
Apparatus for discharging particulate solid material from an intermediate bulk container in the form of an outer bag having an inner liner comprising frame members having means to which an upper end of said outer bag can be anchored, a reel having resilient return means and a cord means on said reel and extendable against the action of said resilient return means and adapted to be connected with an upper end of the inner liner and pulley means having notches on the periphery thereof sized to accommodate a knotted connection between the cord means and the inner liner.
Claim 5
Dependent Claim
14 words
Apparatus according to claim 2, wherein said pulley means comprises a rotationally-mounted vaned spider.
Claim 6
Dependent Claim
11 words
Apparatus according to claim 3, wherein said spider has four vanes.
Claim 7
Dependent Claim
27 words
Apparatus according to any one of claims of 1, 3, 4 and 2, wherein the resilient return means exerts a force of from 3 to 5 kgms.
Claim 8
Dependent Claim
29 words
Apparatus according to claim 1 and 2 further including a hopper for receiving the lower end of a intermediate bulk container with said frame members supported above said hopper.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-11-27 | 1993-05-29 | 1993-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-27 | 1997-05-29 | 1997-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-27 | 2001-05-29 | 2001-11-28 | $7700.00 | Window Closed / Lapsed |