US4798280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Measuring devices
Assignee: Alf Hannaford and Co Pty Ltd
•
Filing: 1983-08-31
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Granted: 1989-01-17
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Expires: 2003-08-31
Abstract
Abstract A measuring apparatus for measuring quantity of grain passing through a conduit which includes a closely fitting auger within the conduit and a separate auger coaxial with the measuring auger arranged to push the particulate materials into the inlet end of the measuring auger to ensure that this is kept full during the measuring rotation and achieving this with the measuring auger fully within the inlet end of the measuring conduit which will substantially avoid cracking of the grain or other particulate materials.
Inventors
- 👤 Hubert L. Hornhardt
- 👤 Geoffrey G. Nuske
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:54
CPC Classifications
G; G01; G01F; G01F13/00; G01F13/001; G01F13/005; B; B65; B65G; B65G33/00; B65G33/24
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
200 words
Measuring apparatus including a measuring conduit having a measuring cylindrical bore, a measuring auger within the cylindrical bore and having an axial shaft coaxial with the bore, the outer edge of the measuring auger closely fitting within the bore and extending continuously along a measuring length, the measuring length commencing at an inlet end of the bore, and terminating at an outlet end of the bore, the measuring auger at the inlet end of the bore having an abruptly inclined edge approaching the auger edge closest to the said inlet end of the bore, a feed auger supported by the said axial shaft and constrained to rotate therewith, the pitch of the feed auger being greater than the pitch of the measuring auger, the feed auger being located with an outlet end adjacent and axially spaced from the inlet end of the bore, and the housing and the feed auger being shaped and otherwise arranged so as to allow particulate material, where this is being urged toward the inlet end of the measuring bore, to be diverted from between the measuring bore and the feed bore, where excess to any take-up of such particulate material by the measuring auger exists.
Claim 2
Dependent Claim
200 words
Measuring apparatus including a measuring conduit having a measuring cylindrical bore, a measuring auger within the cylindrical bore and having an axial shaft coaxial with the bore, the outer edge of the measuring auger closely fitting within the bore and extending continuously along a measuring length, the measuring length commencing at an inlet end of the bore, and terminating at an outlet end of the bore, the measuring auger at the inlet end of the bore having an abruptly inclined edge approaching the auger edge closest to the said inlet end of the bore, a feed auger supported by the said axial shaft and constrained to rotate therewith, the pitch of the feed auger being greater than the pitch of the measuring auger, the feed auger being located with an outlet end adjacent and axially spaced from the inlet end of the bore, and the housing and the feed auger being shaped and otherwise arranged so as to allow particulate material, where this is being urged toward the inlet end of the measuring bore, to be diverted from between the measuring bore and the feed bore, where excess to any take-up of such particulate material by the measuring auger exists.
Claim 3
Dependent Claim
64 words
Measuring apparatus as in claim 1 where in the housing at least around a lowermost side adjacent the inlet end of the measuring conduit is inclined with a higher portion closest to the measuring bore the inclination being to such an extent as to cause particulate material as might be used within the apparatus to slide down such slope when the apparatus is operating.
Claim 4
Dependent Claim
19 words
Measuring apparatus as in either of claims 1 wherein a door is located and openable below the feed auger.
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) | 1992-01-17 | 1992-07-18 | 1993-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-17 | 1996-07-18 | 1997-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-17 | 2000-07-18 | 2001-01-17 | $7700.00 | Window Closed / Lapsed |