Patent US4369895A successfully refreshed from Google Patents.
US4369895A
Expired / Lapsed
US
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Seed planter monitor
Assignee: FLEET CREDIT Corp A CORP OF RI
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Filing: 1980-04-04
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Granted: 1983-01-25
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Expires: 2000-04-04
Abstract
Abstract A seed planter monitor is used with a traveling seed planter operable to periodically dispense seeds in each of a plurality of rows. The monitor scans the outputs of seed sensors which provide electrical signals as the seeds are dispensed. A detector triggers an alarm in the absence of output signals from an examined seed sensor during a predetermined time period. A visual display identifies the row being examined by the scanner.
Inventors
- 👤 John J. McCarty
- 👤 Kerry L. Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:42
CPC Classifications
A; A01; A01C; A01C7/00; A01C7/08; A01C7/10; A01C7/102; A01C7/105; Y; Y10; Y10S; Y10S111/00; Y10S111/903
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
150 words
A monitor for a seed planter operable to periodically dispense seeds in each of a plurality of rows, comprising: seed sensing means for each row operable to provide an electrical signal at an output as each seed is dispensed; seed sensor selector means in circuit with the seed sensing means outputs and being operable to provide, at a selector output, selector signals corresponding to the electrical signals supplied by a selected one of the seed sensing means; advancing means in circuit with the selector output and operatively triggered by each said selector signal to control the seed sensor selector means for sequential selection of the seed sensing means outputs; detecting means in circuit with the selector output for providing an alarm signal in the absence of a signal from a selected seed sensing means output during a predetermined time period; and alarm means actuated in response to the alarm signal.
Claim 2
Dependent Claim
150 words
A monitor for a seed planter operable to periodically dispense seeds in each of a plurality of rows, comprising: seed sensing means for each row operable to provide an electrical signal at an output as each seed is dispensed; seed sensor selector means in circuit with the seed sensing means outputs and being operable to provide, at a selector output, selector signals corresponding to the electrical signals supplied by a selected one of the seed sensing means; advancing means in circuit with the selector output and operatively triggered by each said selector signal to control the seed sensor selector means for sequential selection of the seed sensing means outputs; detecting means in circuit with the selector output for providing an alarm signal in the absence of a signal from a selected seed sensing means output during a predetermined time period; and alarm means actuated in response to the alarm signal.
Claim 3
Dependent Claim
31 words
The monitor of claim 1 having display means in circuit with the sensor selector means and being operable to visually identify the row associated with the selected seed sensing means output.
Claim 4
Dependent Claim
30 words
The monitor of claim 2 wherein the display means comprises a digitial display and a group of row lights, each row light corresponding to one of the seed sensing means.
Claim 5
Dependent Claim
29 words
The monitor of claim 1 and means for resetting the advancing means in order to control the sensor selector means for periodic selection of the seed sensing means outputs.
Claim 6
Dependent Claim
13 words
The monitor of claim 1 wherein the alarm means comprises an audible alarm.
Claim 7
Dependent Claim
37 words
The monitor of claim 5 wherein the alarm means comprises a timer in circuit with an oscillator, both operable to control the audible alarm to provide a beeping sound for a time period determined by the timer.
Claim 8
Dependent Claim
13 words
The monitor of claim 1 wherein the detecting means comprises a retriggerable timer.
Claim 9
Dependent Claim
26 words
The monitor of claim 1 wherein the advancing means comprises a counter having a plurality of BCD output lines in circuit with the sensor selector means.
Claim 10
Dependent Claim
14 words
The monitor of claim 1 wherein the seed sensor selector means comprises a multiplexer-demultiplexer.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-01-24 | 1986-07-26 | 1987-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-24 | 1990-07-26 | 1991-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-24 | 1994-07-26 | 1995-01-25 | $7700.00 | Window Closed / Lapsed |