Patent US3659752A successfully refreshed from Google Patents.
US3659752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Easily removable fluid permeable structure for aerated hopper discharge outlets
Assignee: ADF Industries Inc
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Filing: 1970-03-19
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Granted: 1972-05-02
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Expires: 1990-03-19
Abstract
Abstract A fluid permeable member for an aerated hopper discharge outlet which may be easily inserted within and removed from the hopper discharge outlet. The fluid permeable member comprises a onepiece inner insert having a central discharge opening in vertical alignment with the discharge opening of the bottom discharge outlet and is easily secured in spaced relation to the outer lower housing or body of the discharge outlet by releasable securing means, such as threaded bolts. The inner fluid permeable insert is preferably formed of a stainless steel wire mesh material. The outer housing of the discharge outlet has an upper peripheral flange mating with a lower peripheral flange on the bottom of the hopper, and the fluid permeable member has a peripheral flange positioned and gripped between the mating flanges of the outer housing and the superjacent hopper.
Inventors
- 👤 John L Carney Jr
- 👤 Dennis J Schipper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:33
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/54; B65D88/72
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
230 words
A bottom outlet structure adapted to be secured to a mounting flange beneath a hopper and comprising, a housing having an upper peripheral mounting flange extending thereabout and funneling downwardly from the upper peripheral flange to a bottom discharge opening, an inner mounting ring on the housing defining said bottom discharge opening, a butterfly valve structure beneath the mounting ring to control the flow of lading from the bottom discharge opening and including a bearing ring in general vertical alignment with the mounting ring, an easily removable fluid permeable member fitting within the outlet structure and having an inner ring-shaped mounting pad defining a central opening in vertical alignment with said bottom discharge opening, the mounting pad of the fluid permeable member supported on and in face-to-face contact with said mounting ring, support ribs between the fluid permeable member and said housing to support the fluid permeable member thereon, a plenum chamber beneath the fluid permeable member, studs extending through said bearing and mounting rings and said mounting pad for connecting the mounting pad and rings, an upper peripheral flange on said fluid permeable member positioned between the mounting flange on the housing and the mounting flange beneath the hopper, and studs extending through said mounting flanges and said upper peripheral flange for clamping in a secured position the peripheral flange of the fluid permeable member between said mounting flanges.
Claim 2
Dependent Claim
230 words
A bottom outlet structure adapted to be secured to a mounting flange beneath a hopper and comprising, a housing having an upper peripheral mounting flange extending thereabout and funneling downwardly from the upper peripheral flange to a bottom discharge opening, an inner mounting ring on the housing defining said bottom discharge opening, a butterfly valve structure beneath the mounting ring to control the flow of lading from the bottom discharge opening and including a bearing ring in general vertical alignment with the mounting ring, an easily removable fluid permeable member fitting within the outlet structure and having an inner ring-shaped mounting pad defining a central opening in vertical alignment with said bottom discharge opening, the mounting pad of the fluid permeable member supported on and in face-to-face contact with said mounting ring, support ribs between the fluid permeable member and said housing to support the fluid permeable member thereon, a plenum chamber beneath the fluid permeable member, studs extending through said bearing and mounting rings and said mounting pad for connecting the mounting pad and rings, an upper peripheral flange on said fluid permeable member positioned between the mounting flange on the housing and the mounting flange beneath the hopper, and studs extending through said mounting flanges and said upper peripheral flange for clamping in a secured position the peripheral flange of the fluid permeable member between said mounting flanges.
Claim 3
Dependent Claim
243 words
A bottom outlet structure adapted to be secured to a mounting flange beneath a hopper and comprising; a housing having an upper peripheral mounting flange extending thereabout and funneling downwardly from the upper peripheral flange to a bottom discharge opening, an inner mounting ring on the housing defining said bottom discharge opening; a discharge structure beneath the mounting ring to control the flow of lading from the bottom discharge opening and including a mounting flange in general vertical alignment with the mounting ring; an easily removable fluid permeable member fitting within the outlet structure and having an inner mounting pad defining a central opening in vertical alignment with said bottom discharge opening, the mounting pad of the fluid permeable member supported on and in face-to-face contact with said mounting ring, support ribs between the fluid permeable member and said housing to support the fluid permeable member thereon, a plenum chamber beneath the fluid permeable member; studs connecting the mounting flange of the discharge structure, the inner mounting riNg of the housing, and the mounting pad of the permeable member; an upper peripheral flange on said fluid permeable member positioned between the mounting flange on the housing and the mounting flange beneath the hopper; and studs connecting the housing mounting flange, the mounting flange beneath the hopper, and the upper peripheral flange of the permeable member for clamping in a secured position said peripheral flange of the permeable member between the respective mounting flanges.
Claim 4
Dependent Claim
243 words
A bottom outlet structure adapted to be secured to a mounting flange beneath a hopper and comprising; a housing having an upper peripheral mounting flange extending thereabout and funneling downwardly from the upper peripheral flange to a bottom discharge opening, an inner mounting ring on the housing defining said bottom discharge opening; a discharge structure beneath the mounting ring to control the flow of lading from the bottom discharge opening and including a mounting flange in general vertical alignment with the mounting ring; an easily removable fluid permeable member fitting within the outlet structure and having an inner mounting pad defining a central opening in vertical alignment with said bottom discharge opening, the mounting pad of the fluid permeable member supported on and in face-to-face contact with said mounting ring, support ribs between the fluid permeable member and said housing to support the fluid permeable member thereon, a plenum chamber beneath the fluid permeable member; studs connecting the mounting flange of the discharge structure, the inner mounting riNg of the housing, and the mounting pad of the permeable member; an upper peripheral flange on said fluid permeable member positioned between the mounting flange on the housing and the mounting flange beneath the hopper; and studs connecting the housing mounting flange, the mounting flange beneath the hopper, and the upper peripheral flange of the permeable member for clamping in a secured position said peripheral flange of the permeable member between the respective mounting flanges.
Claim 5
Dependent Claim
32 words
A bottom outlet structure as set forth in claim 2 wherein a generally U-shaped resilient gasket fits about both faces of said peripheral flange of the permeable member between said mounting flanges.
Claim 6
Dependent Claim
30 words
A bottom outlet structure as set forth in claim 2 wherein said fluid permeable member comprises a one-piece stainless steel mesh material having a thickness less than around 0.15 inch.
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) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |