US3238709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Float and adjusting mechanism
Assignee: Individual
•
Filing: 1964-10-05
•
Granted: 1966-03-08
•
Expires: 1984-10-05
Abstract
No abstract record available.
Inventors
- 👤 Carl D Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:49
CPC Classifications
A; A01; A01D; A01D41/00; A01D41/12; A01D41/14; Y; Y10; Y10S; Y10S116/00; Y10S116/13; Y10S56/00; Y10S56/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
185 words
FOR A GROUND-TRAVERSING MACHINE HAVING A MOBILE FRAME ADAPTED TO ADVANCE OVER THE GROUND AND INCLUDING SPACED APART UPPER AND LOWER SUPORTS, AND A RELATIVELY HEAVY ELEMENT CARRIED BY THE UPPER SUPPORT ON A TRANSVERSE PIVOT AXIS AND EXTENDING FORWARDLY IN OVERHANGING RELATION TO THE LOWER SUPPORT AND INCLUDING MOUNTING MEANS SPACED AHEAD OF THE SUPPORTS, THE IMPROVEMENT RESIDING IN A FLOAT AND ADJUSTING MECHANISM FOR THE ELEMENT, COMPRISING: A FRONT MEMBER HAVING MEANS FOR CONNECTION TO THE MOUNTING MEANS; AN INTERMEDIATE MEMBER BEHIND THE FRONT MEMBER; A REAR MEMBER PROXIMATE TO THE LOWER SUPPORT; GUIDE MEANS INCLUDING A FORE-AND-AFT GUIDE PART SECUFED TO THE INTERMEDIATE MEMBER AND A FORE-AND-AFT GUIDED PART SLIDABLY CARRIED BY THE GUIDE PART AND CONNECTED AT OPPOSITE ENDS RESPECTIVELY TO THE FRONT AND REAR MEMBERS; SPRING MEANS CONNECTED BETWEEN THE REAR AND INTERMEDIATE MEMBERS AND EXERTING A FORWARD FORCE ON THE REAR MEMBER; AND FORE-AND-AFT ADJUSTABLE FORCE-EXERTING MEANS HAVING A FORWARD PORTION CONNECTED TO THE INTERMEDIATE MEMBER AND A REARWARD PORTION INCLUDING MEANS FOR CONNECTION TO THE LOWER SUPPORT AND OPERATIVE TO EXERT A LIFTING FORCE ON THE INTERMEDIATE MEMBER.
Claim 2
Dependent Claim
185 words
FOR A GROUND-TRAVERSING MACHINE HAVING A MOBILE FRAME ADAPTED TO ADVANCE OVER THE GROUND AND INCLUDING SPACED APART UPPER AND LOWER SUPORTS, AND A RELATIVELY HEAVY ELEMENT CARRIED BY THE UPPER SUPPORT ON A TRANSVERSE PIVOT AXIS AND EXTENDING FORWARDLY IN OVERHANGING RELATION TO THE LOWER SUPPORT AND INCLUDING MOUNTING MEANS SPACED AHEAD OF THE SUPPORTS, THE IMPROVEMENT RESIDING IN A FLOAT AND ADJUSTING MECHANISM FOR THE ELEMENT, COMPRISING: A FRONT MEMBER HAVING MEANS FOR CONNECTION TO THE MOUNTING MEANS; AN INTERMEDIATE MEMBER BEHIND THE FRONT MEMBER; A REAR MEMBER PROXIMATE TO THE LOWER SUPPORT; GUIDE MEANS INCLUDING A FORE-AND-AFT GUIDE PART SECUFED TO THE INTERMEDIATE MEMBER AND A FORE-AND-AFT GUIDED PART SLIDABLY CARRIED BY THE GUIDE PART AND CONNECTED AT OPPOSITE ENDS RESPECTIVELY TO THE FRONT AND REAR MEMBERS; SPRING MEANS CONNECTED BETWEEN THE REAR AND INTERMEDIATE MEMBERS AND EXERTING A FORWARD FORCE ON THE REAR MEMBER; AND FORE-AND-AFT ADJUSTABLE FORCE-EXERTING MEANS HAVING A FORWARD PORTION CONNECTED TO THE INTERMEDIATE MEMBER AND A REARWARD PORTION INCLUDING MEANS FOR CONNECTION TO THE LOWER SUPPORT AND OPERATIVE TO EXERT A LIFTING FORCE ON THE INTERMEDIATE MEMBER.
References Cited (Backward Citations)
US2452153A
Cited
FR1319825A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |