US3716167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary sample collector
Assignee: Galigher Co
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Filing: 1971-03-15
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Granted: 1973-02-13
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Expires: 1991-03-15
Abstract
Abstract A rotary sample collector for receiving periodically collected samples of dry, granular materials is the subject of this disclosure. The collector comprises a cylindrical closure containing a rotatable, inverted cone-shaped hopper into which sample material is introduced to be discharged at the cone apex through an inclined conduit to one of a plurality of collection stations. The collection stations are disposed in a circle about the base of the collector, each station having a tubular member which communicates with the inclined conduit upon rotation of the cone-shaped hopper to sequentially align the lower opening of the inclined conduit with the upper opening of each tubular member of each collecting station.
Inventors
- 👤 F Huntington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:45
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N1/20
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
252 words
A rotary sample collector for dry granular material comprising: a. an external closure, said closure having flat, plate-like upper and lower flange members; b. an inverted conical hopper enclosed in said external closure, said inverted conical hopper having a larger upper opening and a smaller discharge opening at its apex; c. drive means for rotating and supporting said conical hopper, said drive means being concentric with said conical hopper and supported by said upper flange; d. bearing means externally located on said upper flange for providing bearing support for said drive means; e. tubular conveying means communicating with said conical hopper discharge opening at its upper end and at its lower end selectively communicating with one of a plurality of openings in the lower flange of said external closure; f. a plurality of spaced openings in said flat, plate-like lower flange near the perimeter thereof, said plurality of openings located on the circumference of a circle which has its center directly below said concentric drive means; g. a plurality of short, sample discharge tube members projecting externally below said lower flange, each of said tube members communicating with one of the plurality of spaced openings in said lower flange, said sample discharge tube members adapted to receive a sample bag about their lower ends. h. rotatable disc seal means having an opening communicating with said tubular conveying means and sealingly covering the plurality of spaced openings in said lower flange, except for the opening with which said tubular conveying means is communicating.
Claim 2
Dependent Claim
252 words
A rotary sample collector for dry granular material comprising: a. an external closure, said closure having flat, plate-like upper and lower flange members; b. an inverted conical hopper enclosed in said external closure, said inverted conical hopper having a larger upper opening and a smaller discharge opening at its apex; c. drive means for rotating and supporting said conical hopper, said drive means being concentric with said conical hopper and supported by said upper flange; d. bearing means externally located on said upper flange for providing bearing support for said drive means; e. tubular conveying means communicating with said conical hopper discharge opening at its upper end and at its lower end selectively communicating with one of a plurality of openings in the lower flange of said external closure; f. a plurality of spaced openings in said flat, plate-like lower flange near the perimeter thereof, said plurality of openings located on the circumference of a circle which has its center directly below said concentric drive means; g. a plurality of short, sample discharge tube members projecting externally below said lower flange, each of said tube members communicating with one of the plurality of spaced openings in said lower flange, said sample discharge tube members adapted to receive a sample bag about their lower ends. h. rotatable disc seal means having an opening communicating with said tubular conveying means and sealingly covering the plurality of spaced openings in said lower flange, except for the opening with which said tubular conveying means is communicating.
Claim 3
Dependent Claim
252 words
A rotary sample collector for dry granular material comprising: a. an external closure, said closure having flat, plate-like upper and lower flange members; b. an inverted conical hopper enclosed in said external closure, said inverted conical hopper having a larger upper opening and a smaller discharge opening at its apex; c. drive means for rotating and supporting said conical hopper, said drive means being concentric with said conical hopper and supported by said upper flange; d. bearing means externally located on said upper flange for providing bearing support for said drive means; e. tubular conveying means communicating with said conical hopper discharge opening at its upper end and at its lower end selectively communicating with one of a plurality of openings in the lower flange of said external closure; f. a plurality of spaced openings in said flat, plate-like lower flange near the perimeter thereof, said plurality of openings located on the circumference of a circle which has its center directly below said concentric drive means; g. a plurality of short, sample discharge tube members projecting externally below said lower flange, each of said tube members communicating with one of the plurality of spaced openings in said lower flange, said sample discharge tube members adapted to receive a sample bag about their lower ends. h. rotatable disc seal means having an opening communicating with said tubular conveying means and sealingly covering the plurality of spaced openings in said lower flange, except for the opening with which said tubular conveying means is communicating.
Claim 4
Dependent Claim
252 words
A rotary sample collector for dry granular material comprising: a. an external closure, said closure having flat, plate-like upper and lower flange members; b. an inverted conical hopper enclosed in said external closure, said inverted conical hopper having a larger upper opening and a smaller discharge opening at its apex; c. drive means for rotating and supporting said conical hopper, said drive means being concentric with said conical hopper and supported by said upper flange; d. bearing means externally located on said upper flange for providing bearing support for said drive means; e. tubular conveying means communicating with said conical hopper discharge opening at its upper end and at its lower end selectively communicating with one of a plurality of openings in the lower flange of said external closure; f. a plurality of spaced openings in said flat, plate-like lower flange near the perimeter thereof, said plurality of openings located on the circumference of a circle which has its center directly below said concentric drive means; g. a plurality of short, sample discharge tube members projecting externally below said lower flange, each of said tube members communicating with one of the plurality of spaced openings in said lower flange, said sample discharge tube members adapted to receive a sample bag about their lower ends. h. rotatable disc seal means having an opening communicating with said tubular conveying means and sealingly covering the plurality of spaced openings in said lower flange, except for the opening with which said tubular conveying means is communicating.
Claim 5
Dependent Claim
21 words
The rotary sample collector of claim 1 wherein the inverted conical hopper is suspended by drive means from said upper flange.
Claim 6
Dependent Claim
29 words
The rotary sample collector of claim 1 wherein the upper surface of said lower flange which is in contact with said rotatable disc seal is a flat, machined surface.
Claim 7
Dependent Claim
20 words
The rotary sample collector of claim 1 wherein the plurality of spaced openings in said lower flange are circular openings.
Claim 8
Dependent Claim
19 words
The rotary sample collector of claim 1 wherein the lower flange has a plurality of spaced waste slot openings.
Claim 9
Dependent Claim
31 words
The rotary sample collector of claim 1 wherein the external closure is a cylindrical structure having a pair of flat plate like members forming the top and bottom of said closure.
Claim 10
Dependent Claim
33 words
The rotary sample collector of claim 1 wherein the hopper is attached to said concentric drive means by an axle and hub with radial web-like members extending from said hub to said hopper.
Claim 11
Dependent Claim
25 words
The rotary sample collector of claim 1 wherein the hopper walls and tubular conveyor means each have a minimum slope of 60* with the horizontal.
Claim 12
Dependent Claim
40 words
The rotary sample collector of claim 1 wherein the rotatable disc seal means has a circular opening near the periphery of said disc, said circular opening being of sufficient size to encompass the lower end of said tubular conveying means.
Claim 13
Dependent Claim
19 words
The rotary sample collector of claim 9 wherein the rotatable disc seal means is a high density plastic disc.
Claim 14
Dependent Claim
56 words
The rotary sample collector of claim 1 wherein the tubular conveyor is sequentially rotated to succeeding individual sample collection stations by means comprising remote energizing means to initiate operation of said drive means and switch means cooperating with cam means associated with said hopper to terminate rotation of said tubular conveyor at a selected collection station.
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) | 1976-02-13 | 1976-08-14 | 1977-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-13 | 1980-08-14 | 1981-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-13 | 1984-08-14 | 1985-02-13 | $7700.00 | Window Closed / Lapsed |