US3942689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for removing compacted fibrous materials from containers
Assignee: Johns Manville Corp
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Filing: 1974-02-27
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Granted: 1976-03-09
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Expires: 1994-02-27
Abstract
Abstract An apparatus and a method are disclosed for loosening compacted fibrous material in a container whereby the fibrous material will flow freely out through an outlet located in the bottom of the container. Agitation means are provided on the sidewalls of the container adjacent to the outlet to create and maintain an open space adjacent the outlet. A flexible, tubular member is placed in said container so that a free portion having an open end extends into the open space a sufficient distance that when a pressurized fluid is passed through the flexible member and out of its open end it causes whip-like movements of the free portion within the open space causing the pressurized fluid to be directed upwardly towards the fibrous material compacted overhead to loosen and dislodge the fibrous material.
Inventors
- 👤 Gerald Frank Dakin, Jr.
- 👤 Georges Louis Olney
- 👤 Desmond Patrick Robertson Smyth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:18
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/54; B65D88/64; B65D88/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
217 words
In an apparatus for dispensing compacted fibrous material from a container having a discharge outlet and a sloping sidewall adjacent to said outlet, said sloping sidewall having fixed nozzles mounted thereon for loosening the material in the portion of the container adjacent said sloping sidewall, comprising conduit means for introducing pressurized fluid into the container, and at least one flexible, hollow, tubular member connected to said conduit means, said at least one flexible, hollow, tubular member having a free portion and an open end and being of sufficient length to extend said open end into the portion of the container adjacent said nozzles a sufficient distance to cause a whip-like movement of said free portion when said pressurized fluid is passed therethrough whereby said fibrous material compacted above said open end is loosened for removal from said container, the improvement comprising: a vertically extending tubular guide member, said guide member being slideably mounted on a top wall of the container in sealing relationship with the top wall, with said flexible tubular member extending along said guide member and slidably mounted within said guide member in sealing relationship with the interior wall surface of said tubular guide member to permit varying the elevation of said guide member and thus varying the exposed length of said flexible tubular member.
Claim 2
Dependent Claim
217 words
In an apparatus for dispensing compacted fibrous material from a container having a discharge outlet and a sloping sidewall adjacent to said outlet, said sloping sidewall having fixed nozzles mounted thereon for loosening the material in the portion of the container adjacent said sloping sidewall, comprising conduit means for introducing pressurized fluid into the container, and at least one flexible, hollow, tubular member connected to said conduit means, said at least one flexible, hollow, tubular member having a free portion and an open end and being of sufficient length to extend said open end into the portion of the container adjacent said nozzles a sufficient distance to cause a whip-like movement of said free portion when said pressurized fluid is passed therethrough whereby said fibrous material compacted above said open end is loosened for removal from said container, the improvement comprising: a vertically extending tubular guide member, said guide member being slideably mounted on a top wall of the container in sealing relationship with the top wall, with said flexible tubular member extending along said guide member and slidably mounted within said guide member in sealing relationship with the interior wall surface of said tubular guide member to permit varying the elevation of said guide member and thus varying the exposed length of said flexible tubular member.
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) | 1979-03-09 | 1979-09-08 | 1980-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-09 | 1983-09-08 | 1984-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-09 | 1987-09-08 | 1988-03-09 | $7700.00 | Window Closed / Lapsed |