US3593720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combine grain loss signal
Assignee: MASSEY COMBINES Corp A CORP OF ONTARIO
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Filing: 1969-03-03
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Granted: 1971-07-20
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Expires: 1989-03-03
Abstract
Abstract A combine harvester thresher grain loss monitor which includes, a secondary grain separating and cleaning apparatus which receives at least part of the crop material expelled from the primary grain separating and cleaning apparatus and separates and cleans any grain still present in the crop material, an electronic apparatus to measure the flow rate of cleaned grain discharged from the secondary grain separating and cleaning apparatus, and an indicator which indicates the flow rate of the grain which the primary grain separating and cleaning apparatus failed to separate and clean.
Inventors
- 👤 John R Botterill
- 👤 Philip L Dodd
- 👤 William J Radburn
- 👤 Leslie L Kepkay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:28
CPC Classifications
A; A01; A01D; A01D41/00; A01D41/12; A01D41/127; A01D41/1276; A01D41/1271; Y; Y10; Y10S; Y10S56/00; Y10S56/15
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
201 words
A combine harvester thresher including a threshing mechanism, straw walkers to separate grain from the straw, a shaker shoe to clean the grain, a grain storage bin for storage of cleaned grain, an elevator to convey clean grain from the shaker shoe to the grain storage bin, a secondary grain separating unit which receives all the crop material leaving the straw walkers and separates the remaining grain if any, a secondary cleaning apparatus including a fan and a shaker shoe, conveyor means to convey the grain separated from the straw by the secondary grain separating unit from the secondary grain separating unit to the secondary cleaning apparatus, conveyor means to convey clean grain from the secondary cleaning apparatus to said grain storage bin, flow rate measuring apparatus to measure the rate of flow of grain from the secondary cleaning apparatus, flow rate measuring apparatus to measure the rate of flow of grain into the grain storage bin, and indicator means adjacent to the operator which indicates the flow rate of grain from the secondary cleaning apparatus and the total flow rate of all the grain entering the grain storage bin thereby indicating the efficiency of the straw walkers to the operator.
Claim 2
Dependent Claim
201 words
A combine harvester thresher including a threshing mechanism, straw walkers to separate grain from the straw, a shaker shoe to clean the grain, a grain storage bin for storage of cleaned grain, an elevator to convey clean grain from the shaker shoe to the grain storage bin, a secondary grain separating unit which receives all the crop material leaving the straw walkers and separates the remaining grain if any, a secondary cleaning apparatus including a fan and a shaker shoe, conveyor means to convey the grain separated from the straw by the secondary grain separating unit from the secondary grain separating unit to the secondary cleaning apparatus, conveyor means to convey clean grain from the secondary cleaning apparatus to said grain storage bin, flow rate measuring apparatus to measure the rate of flow of grain from the secondary cleaning apparatus, flow rate measuring apparatus to measure the rate of flow of grain into the grain storage bin, and indicator means adjacent to the operator which indicates the flow rate of grain from the secondary cleaning apparatus and the total flow rate of all the grain entering the grain storage bin thereby indicating the efficiency of the straw walkers to the operator.
Claim 3
Dependent Claim
17 words
The combine harvester thresher of claim 1 wherein said flow rate measuring apparatus includes an electromechanical transducer.
Claim 4
Dependent Claim
31 words
The combine harvester thresher of claim 1 wherein said flow-rate measuring apparatus includes apparatus to measure the flow-rate by measuring the quantity of grain collected in a preselected period of time.
Claim 5
Dependent Claim
31 words
The combine harvester thresher of claim 1 wherein said flow-rate measuring apparatus includes apparatus to measure the flow rate by measuring the time required to collect a preselected quantity of grain.
References Cited (Backward Citations)
DD53446A
Cited
US2255193A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |