Patent US3468475A successfully refreshed from Google Patents.
Patent US4998991A successfully refreshed from Google Patents.
US4998991A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Materials handling equipment
Assignee: Bagfilla Overseas Ltd
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Filing: 1989-12-01
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Granted: 1991-03-12
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Expires: 2009-12-01
Abstract
Abstract This invention relates to equipment assisting the discharge of particulate materials from intermediate bulk containers of the kind comprising an outer bag having an inner lining comprising frame members to which the upper end of the outer bag of an intermediate bulk container can be anchored, cord devices extendable against the action of resilient devices and adapted to be connected with the upper end of an inner liner to the outer bag, pulley devices for guiding the cord devices to the position of connection with the liner, a pivoted arm and devices for attaching the free end of the cord devices to the arm at a position spaced from its pivot, the arrangement being such that the arm can be swung to carry the free end of the cord means to a position for connection with the liner.
Inventors
- 👤 Barrie A. Poulton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:41
CPC Classifications
B; B65; B65D; B65D90/00; B65D90/12; B65D90/20; B65D90/205; B65B; B65B69/00; B65B69/0075; B65B69/0091
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
183 words
Equipment for assisting the discharge of particulate materials from an intermediate bulk container of the kind comprising an outer bag with an upper, substantially closed end and a lower open end and having an inner liner with a closed upper end and a lower open end and comprising frame members to which the upper end of the outer bag of the intermediate bulk container can be anchored, cord means extendable against the action of resilient means and adapted to be connected through an opening in the upper end of said bag with the upper end of the inner liner to the outer bag, pulley means for guiding the cord means to the position of connection with the liner, a pivoted arm and means for attaching the free end of the cord means to the arm at a position spaced from its pivot, the arrangement being such that the arm can be swung to carry the free end of the cord means to a position to facilitate connection with the liner whereby material can be discharged from the open lower end of the liner.
Claim 2
Dependent Claim
183 words
Equipment for assisting the discharge of particulate materials from an intermediate bulk container of the kind comprising an outer bag with an upper, substantially closed end and a lower open end and having an inner liner with a closed upper end and a lower open end and comprising frame members to which the upper end of the outer bag of the intermediate bulk container can be anchored, cord means extendable against the action of resilient means and adapted to be connected through an opening in the upper end of said bag with the upper end of the inner liner to the outer bag, pulley means for guiding the cord means to the position of connection with the liner, a pivoted arm and means for attaching the free end of the cord means to the arm at a position spaced from its pivot, the arrangement being such that the arm can be swung to carry the free end of the cord means to a position to facilitate connection with the liner whereby material can be discharged from the open lower end of the liner.
Claim 3
Dependent Claim
14 words
Equipment according to claim 1, wherein the cord means is extendable from a reel.
Claim 4
Dependent Claim
17 words
Equipment according to claim 1, wherein the pulley means comprises two spaced drums rotatable about horizontal axes.
Claim 5
Dependent Claim
18 words
Equipment according to claim 3, wherein the arm is pivoted at a position midway between the spaced drums.
Claim 6
Dependent Claim
28 words
Equipment according to claim 3, wherein one of the drums and the means from which the cord is extendable are connected to and carried by said pivoted arm.
Claim 7
Dependent Claim
37 words
Equipment according to claim 1, wherein the means for attaching the free end of the cord means to the arm comprises a loop on the free end of the cord engageable with a pin on the arm.
Claim 8
Dependent Claim
33 words
Equipment according to claim 6, wherein the pin has a free end which is uppermost before the arm is swung to carry the cord to the connection position when it is directed downwardly.
Claim 9
Dependent Claim
172 words
Apparatus for assisting the discharge of particulate solid material from a bulk container in the form of an outer bag with an upper, substantially closed end and a lower open end and having an inner liner with a closed upper end and a lower open end and comprising frame means for supporting said outer bag at its said upper end, resilient return means on said frame means and including cord means having a free end adapted to be connected through an opening in the upper end of said bag with an upper end of said inner liner, the improvement of an arm means pivoted on said frame means and having a connection means for attaching said free end of said cord means at a position spaced from its pivot so that said arm means can be pivoted on said frame to carrying said free end of said cord means to a position to facilitate connection with said inner liner whereby material can be discharged from the open lower end of the liner.
Claim 10
Dependent Claim
172 words
Apparatus for assisting the discharge of particulate solid material from a bulk container in the form of an outer bag with an upper, substantially closed end and a lower open end and having an inner liner with a closed upper end and a lower open end and comprising frame means for supporting said outer bag at its said upper end, resilient return means on said frame means and including cord means having a free end adapted to be connected through an opening in the upper end of said bag with an upper end of said inner liner, the improvement of an arm means pivoted on said frame means and having a connection means for attaching said free end of said cord means at a position spaced from its pivot so that said arm means can be pivoted on said frame to carrying said free end of said cord means to a position to facilitate connection with said inner liner whereby material can be discharged from the open lower end of the liner.
Claim 11
Dependent Claim
27 words
Apparatus as defined in claim 8, further including drum means supported on said frame for guiding said cord means from said resilient means to said inner liner.
Claim 12
Dependent Claim
35 words
Apparatus as defined in claim 9, in which resilient return means includes a reel and said drum means includes first and second drums aligned with said reel on said frame to guide said cord means.
Claim 13
Dependent Claim
23 words
Apparatus as defined in claim 10, in which said reel and said first drum are mounted on said arm means for movement therewith.
References Cited (Backward Citations)
US2722171A
Cited
US3228558A
Cited
US3424422A
Cited
US3961655A
Cited
US4449646A
Cited
US4527716A
Cited
SU1355559A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-03-11 | 1994-09-10 | 1995-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-03-11 | 1998-09-10 | 1999-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-03-11 | 2002-09-10 | 2003-03-12 | $7700.00 | Window Closed / Lapsed |