Patent US3820688A successfully refreshed from Google Patents.
US3820688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material dosaging apparatus
Assignee: Individual
•
Filing: 1973-08-13
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Granted: 1974-06-28
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Expires: 1993-08-13
Abstract
Abstract A dosaging apparatus for pneumatically operating distributor systems is disclosed, for the distributing of material in particle form such as seed goods, fertilizers and other granulates, having a dosaging apparatus connected with a supply hopper and provided with an inlet hopper, and having an air supply duct which is connected with the dosaging apparatus and opens into a conveying conduit for the dosaged material, through which the material is supplied to distributors.
Inventors
- 👤 H Weiste
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:59
CPC Classifications
A; A01; A01C; A01C7/00; A01C7/08; A01C7/081; A01C7/084; A01C15/00; A01C15/04
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
134 words
A dosaging apparatus for pneumatically operating systems for distributing particulate or granulate material, comprising: a. a stationary frame; b. a round tub mounted for rotation on the frame, having a downwardly sloping central portion with a central aperture, and an annular external portion; c. at least one inlet hopper mounted on said frame so as to deposit a selected material on the external portion of the rotating tub; d. means for rotating the tub; e. means on the stationary frame for deflecting the material on the rotating external portion onto the sloping central portion; f. an ejector unit including a collecting nozzle spaced from an extension portion, through which air is conducted to carry material from the central aperture to a distribution system; and g. means mounting the ejector unit at the central aperture.
Claim 2
Dependent Claim
134 words
A dosaging apparatus for pneumatically operating systems for distributing particulate or granulate material, comprising: a. a stationary frame; b. a round tub mounted for rotation on the frame, having a downwardly sloping central portion with a central aperture, and an annular external portion; c. at least one inlet hopper mounted on said frame so as to deposit a selected material on the external portion of the rotating tub; d. means for rotating the tub; e. means on the stationary frame for deflecting the material on the rotating external portion onto the sloping central portion; f. an ejector unit including a collecting nozzle spaced from an extension portion, through which air is conducted to carry material from the central aperture to a distribution system; and g. means mounting the ejector unit at the central aperture.
Claim 3
Dependent Claim
54 words
A dosaging apparatus according to claim 1, wherein the frame includes a partition wall between the annular external portion and the central portion and which is stationary relative to the rotatable tub and has at least one through flow aperture for the material from the annular external portion to pass towards the central aperture.
Claim 4
Dependent Claim
43 words
A dosaging apparatus according to claim 2, wherein the means on the stationary frame for delfecting includes a stationary deflector wall arranged in the path of conveyance of the material by rotation of the external portion and which leads toward the flow aperture.
Claim 5
Dependent Claim
31 words
A dosaging apparatus according to claim 3, wherein air through flow apertures are arranged in the deflector wall and are shielded from the material being conveyed by means of elastic aprons.
Claim 6
Dependent Claim
32 words
A dosaging apparatus according to claim 3, having communicating apertures with the outside atmosphere arranged upstream of the deflector wall as viewed in the direction of conveyance, above the material being conveyed.
Claim 7
Dependent Claim
27 words
A dosaging apparatus according to claim 1, which further includes slide valves for regulating the discharge quanTity of material from the inlet hopper into the external portion.
Claim 8
Dependent Claim
36 words
A dosaging apparatus according to claim 6, wherein the slide valves have flanges extending in the conveying direction of the material at the lower edge of the slide valves acting as leveling plates on the material.
Claim 9
Dependent Claim
21 words
A dosaging apparatus according to claim 1, wherein inlet hoppers are arranged opposite one another on the periphery of the tub.
Claim 10
Dependent Claim
39 words
A dosaging apparatus according to claim 1, wherein the ejector unit is vertically positioned and which includes a collar which is vertically adjustable at the lower end of the extension portion above the collecting nozzle of the ejector unit.
Claim 11
Dependent Claim
47 words
A dosaging apparatus according to claim 1 which includes conveying rings which can be attached adjacent the external portion of the tub and which each have a bottom portion formed by two lips abutting in sealing-tight manner and a discharge tube extending into the said bottom portion.
Claim 12
Dependent Claim
35 words
A dosaging apparatus according to claim 1 which includes a radial-axial fan whose suction side is arranged on the external periphery and whose delivery side is arranged centrally and in communication with said ejector unit.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-27 | 1981-12-27 | 1982-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-27 | 1985-12-27 | 1986-06-28 | $7700.00 | Window Closed / Lapsed |