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US3735899A Expired / Lapsed US ⏱️ 0.0 years remaining

Dispensing hopper

Assignee: Individual
•
Filing: 1971-07-23
•
Granted: 1973-05-29
•
Expires: 1991-07-23
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Abstract

Abstract A dispensing hopper for powdered or granulated material having a rotary dispensing valve positioned in its lower end and arranged with a single pocket in one side of the valve which can rotate from a filling position to a dumping position to dump a predetermined measured quantity of material from the hopper. A plurality of hoppers are illustrated as a unit for dispensing varied products.

Inventors

  • 👤 K Rollinson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 10:10
CPC Classifications
G; G01; G01F; G01F11/00; G01F11/10; G01F11/12; G01F11/20; G01F11/24; A; A47; A47G; A47G19/00; A47G19/30; A47G19/32; A47G19/34

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 261 words
A dispensing hopper unit comprising a generally horizontal, generally rectangular base, a plurality of legs extending upwardly from the corners of said base and converging inwardly, a generally rectangular frame arranged in vertically spaced parallel relation to said base and rigidly secured to the upper ends of said legs, a plurality of hollow hopper bottoms supported from said frame in depending relation thereto, said hopper bottoms having their lower ends spaced above said base, a cylindrical hopper extension seated on each of said hopper bottoms and projecting upwardly therefrom with the axes of said extensions arranged perpendicular to said base, a cover on each of said hopper extensions, means in the lower end of each of said hopper bottoms for manually dispensing a predetermined measured quantity of dry powder or granulated material therefrom comprising a generally cylindrical valve body integrally formed on the lower end of each of said hopper bottoms and extending transversely thereof with the axes of said valve bodies arranged in spaced parallel relation to each other and parallel to said base, each of said valve bodies having a dispensing opening in the lower side thereof, a rotary valve mounted in said valve body for dispensing material through said dispensing opening, said rotary valve having a single dispensing pocket formed therein for alternately aligning said hopper bottom and said dispensing opening, and means on said valve for releasably securing said valve in said valve body, and a handle formed on one end of said valve to provide means for manually rotating said valve for dispensing from said hopper.
Claim 2
Dependent Claim 261 words
A dispensing hopper unit comprising a generally horizontal, generally rectangular base, a plurality of legs extending upwardly from the corners of said base and converging inwardly, a generally rectangular frame arranged in vertically spaced parallel relation to said base and rigidly secured to the upper ends of said legs, a plurality of hollow hopper bottoms supported from said frame in depending relation thereto, said hopper bottoms having their lower ends spaced above said base, a cylindrical hopper extension seated on each of said hopper bottoms and projecting upwardly therefrom with the axes of said extensions arranged perpendicular to said base, a cover on each of said hopper extensions, means in the lower end of each of said hopper bottoms for manually dispensing a predetermined measured quantity of dry powder or granulated material therefrom comprising a generally cylindrical valve body integrally formed on the lower end of each of said hopper bottoms and extending transversely thereof with the axes of said valve bodies arranged in spaced parallel relation to each other and parallel to said base, each of said valve bodies having a dispensing opening in the lower side thereof, a rotary valve mounted in said valve body for dispensing material through said dispensing opening, said rotary valve having a single dispensing pocket formed therein for alternately aligning said hopper bottom and said dispensing opening, and means on said valve for releasably securing said valve in said valve body, and a handle formed on one end of said valve to provide means for manually rotating said valve for dispensing from said hopper.

References Cited (Backward Citations)

CA505272A Cited
FR1317936A Cited
US841111A Cited
US853769A Cited
US1030854A Cited
US1537410A Cited
FR614488A Cited
FR689003A Cited
DE663758C Cited
US2567282A Cited
US3270921A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-05-28 1976-11-27 1977-05-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-05-28 1980-11-27 1981-05-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-05-28 1984-11-27 1985-05-29 $7700.00 Window Closed / Lapsed

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