Patent US3138908A successfully refreshed from Google Patents.
US3138908A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control in harvesting machinery
Assignee: Individual
•
Filing: 1960-09-01
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Granted: 1964-06-30
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Expires: 1980-09-01
Abstract
No abstract record available.
Inventors
- 👤 Budzich Tadeusz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:20
CPC Classifications
A; A01; A01D; A01D41/00; A01D41/12; A01D41/127; A01D41/1274; Y; Y10; Y10S; Y10S56/00; Y10S56/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A MACHINE FOR HARVESTING CROP COMPRISING; A STRUCTURE MEANS; A CROP HANDLING MEANS IN THE STRUCTURE MEANS; A SUBSTANTIALLY CONSTANT SPEED POWER MEANS DRIVING AT FIXED RATIO THE CROP HANDLING MEANS; A TORQUE SENSING MEANS ON THE CROP HANDLING MEANS ADAPTED TO SENSE THE TORQUE TRANSMITTED TO THE CROP HANDLING MEANS INDEPENDENT OF THE TORQUE TRANSMITTED TO PROPEL THE STRUCTURE; A VARIABLE SPEED PROPELLING MEANS DRIVEN BY THE SUBSTANTIALLY CONSTANT SPEED POWER MEANS AND ARRANGED TO ADVANCE THE STRUCTURE MEANS THROUGH THE CROP, SAID VARIABLE SPEED PROPELLING MEANS INCLUDING; A FIRST AND SECOND ADJUSTABLE PITCH PULLEY; A BELT MEANS ENGAGING THE FIRST AND THE SECOND PULLEY; PITCH CHANGING MEANS ARRANGED TO CHANGE THE PITCH OF THE FIRST AND SECOND PULLEY; AND AN AUTOMATIC CONTROL MEANS RESPONSIVE TO THE TORQUE SENSING MEANS AND OPERATING THE PITCH CHANGING MEANS TO MAINTAIN CONSTANT TORQUE AT THE CROP HANDLING MEANS BY VARYING SPEED OF THE MACHINE.
Claim 2
Dependent Claim
152 words
A MACHINE FOR HARVESTING CROP COMPRISING; A STRUCTURE MEANS; A CROP HANDLING MEANS IN THE STRUCTURE MEANS; A SUBSTANTIALLY CONSTANT SPEED POWER MEANS DRIVING AT FIXED RATIO THE CROP HANDLING MEANS; A TORQUE SENSING MEANS ON THE CROP HANDLING MEANS ADAPTED TO SENSE THE TORQUE TRANSMITTED TO THE CROP HANDLING MEANS INDEPENDENT OF THE TORQUE TRANSMITTED TO PROPEL THE STRUCTURE; A VARIABLE SPEED PROPELLING MEANS DRIVEN BY THE SUBSTANTIALLY CONSTANT SPEED POWER MEANS AND ARRANGED TO ADVANCE THE STRUCTURE MEANS THROUGH THE CROP, SAID VARIABLE SPEED PROPELLING MEANS INCLUDING; A FIRST AND SECOND ADJUSTABLE PITCH PULLEY; A BELT MEANS ENGAGING THE FIRST AND THE SECOND PULLEY; PITCH CHANGING MEANS ARRANGED TO CHANGE THE PITCH OF THE FIRST AND SECOND PULLEY; AND AN AUTOMATIC CONTROL MEANS RESPONSIVE TO THE TORQUE SENSING MEANS AND OPERATING THE PITCH CHANGING MEANS TO MAINTAIN CONSTANT TORQUE AT THE CROP HANDLING MEANS BY VARYING SPEED OF THE MACHINE.
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) | 1967-06-30 | 1967-12-30 | 1968-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-30 | 1971-12-30 | 1972-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-30 | 1975-12-30 | 1976-06-30 | $7700.00 | Window Closed / Lapsed |