US3828984A — Silo draining device

Claim 1

Independent Claim 138 words

In a silo drain device including a vibration floor having an axial outlet opening, and a vibration generator fastened to the vibration floor, the vibration floor being so situated so as to vibrate freely beneath the outlet opening of a silo, the improvement comprising a vibrating collection funnel situated above and in line with the axial outlet opening and connected with the vibrating floor to provide an outer material flow path around the funnel to the axial outlet opening, said vibrating collection funnel having an inlet of smaller diameter than the silo and a still smaller outlet positioned below the funnel inlet to provide an inner material flow path through which a portion of the material in the center of the silo passes, and metering means installed in a selected path of flow of material from the silo.

Claim 2

Dependent Claim 138 words

In a silo drain device including a vibration floor having an axial outlet opening, and a vibration generator fastened to the vibration floor, the vibration floor being so situated so as to vibrate freely beneath the outlet opening of a silo, the improvement comprising a vibrating collection funnel situated above and in line with the axial outlet opening and connected with the vibrating floor to provide an outer material flow path around the funnel to the axial outlet opening, said vibrating collection funnel having an inlet of smaller diameter than the silo and a still smaller outlet positioned below the funnel inlet to provide an inner material flow path through which a portion of the material in the center of the silo passes, and metering means installed in a selected path of flow of material from the silo.

Claim 3

Dependent Claim 34 words

A silo drain device according to claim 1, wherein the metering means is a measuring element positioned downstream from the axial outlet opening of the vibration floor to control the flow of material therethrough.

Claim 4

Dependent Claim 39 words

A silo drain device according to claim 2, wherein the collection funnel has a tubular outlet piece which extends at least to a point close to the narrowest point of the vibration floor defined by the outlet opening thereof.

Claim 5

Dependent Claim 33 words

A silo drain device according to claim 2, a tubular wherein outlet piece of the collection funnel and the outlet opening from the vibration floor are each connected to a separate measuring element.

Claim 6

Dependent Claim 17 words

A silo drain device according to claim 2, wherein the measuring element is developed as a sluice.

Claim 7

Dependent Claim 18 words

A silo drain device according to claim 2, wherein the measuring element is developed as a worm gear.

Claim 8

Dependent Claim 16 words

A silo drain device according to claim 2, wherein the measuring element is an obstruction plate.

Claim 9

Dependent Claim 52 words

A silo drain device according to claim 1, wherein the ratio between the narrowest outlet opening of the vibration floor and the narrowest outlet area of the collection funnel is equal to that between the effective entering annular area of the vibration floor and the corresponding entering area of the collection funnel.

Claim 10

Dependent Claim 30 words

A silo drain device according to claim 1, wherein the collection funnel is situated with its highest edge at the same elevation as the corresponding edge of the vibration floor.

Claim 11

Dependent Claim 43 words

A silo draining device according to claim 1, wherein the collection funnel is situated above and connected with the vibrating floor, and wherein the metering means is a measuring element situated below the outlet of the collection funnel to control the flow therethrough.

Claim 12

Dependent Claim 30 words

A silo draining device according to claim 10, wherein the measuring element is connected with the vibrating floor and vibrates together with the vibrating floor and with the collection funnel.

Claim 13

Dependent Claim 41 words

A silo draining device according to claim 10, wherein the measuring element is developed as a conical slide valve which is movable to open and close the collection funnel outlet, and vibrates together with the collection funnel and the vibrating floor.

Claim 14

Dependent Claim 25 words

A silo draining device according to claim 1, wherein the metering means flow is a measuring element mounted to vibrate together with the vibrating floor.

Claim 15

Dependent Claim 43 words

A silo draining device according to claim 1, wherein a co-vibrating guide element in the form of a tapered socket is situated below the outlet of the collection funnel and near the narrowest point defined by the outlet opening of the vibrating floor.

Claim 16

Dependent Claim 135 words

A silo discharge device comprising: a. a vibration floor having a sloping side wall and a centrally located discharge opening; b. means for supporting said vibration floor beneath the outlet opening of a silo so as to permit free vibration thereof; c. a vibration generator connected to said vibration floor; d. a funnel-like device having an inlet opening and a smaller outlet opening; e. means mounting said funnel-like device on said vibration floor so as to vibrate therewith, with the inlet and outlet openings of said funnel-like device disposed directly above said discharge opening of said vibration floor to provide paths of flow through said discharge opening from said silo both through and around said funnel-like device; and f. means for selectively obstructing flow of material through at least one of said paths of flow.

Claim 17

Dependent Claim 135 words

A silo discharge device comprising: a. a vibration floor having a sloping side wall and a centrally located discharge opening; b. means for supporting said vibration floor beneath the outlet opening of a silo so as to permit free vibration thereof; c. a vibration generator connected to said vibration floor; d. a funnel-like device having an inlet opening and a smaller outlet opening; e. means mounting said funnel-like device on said vibration floor so as to vibrate therewith, with the inlet and outlet openings of said funnel-like device disposed directly above said discharge opening of said vibration floor to provide paths of flow through said discharge opening from said silo both through and around said funnel-like device; and f. means for selectively obstructing flow of material through at least one of said paths of flow.

Claim 18

Dependent Claim 86 words

A silo having a discharge device according to claim 15, wherein the silo has a cylindrical storage portion of greater cross section than the cross section of the vibrating bottom floor, wherein the ratio between the narrowest part of the discharge opening of the vibrating bottom floor and the narrowest outlet opening of the funnel-like device is the same as the ratio between the cross section of the said cylindrical portion of the silo and the Cross section of the inlet opening of the funnel-like device.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1977-08-12	1978-02-11	1978-08-13	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1981-08-12	1982-02-11	1982-08-13	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1985-08-12	1986-02-11	1986-08-13	$7700.00	Window Closed / Lapsed

Silo draining device

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