System and method to detect a failed shear bolt supporting a concave of an agricultural combine
Patent 7392123 Issued on June 24, 2008. Estimated Expiration Date: 
November 1, 2024. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 1, 2024. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2113666 2124965 3552396 3697052 3704459 3793512 3803574 3858443 Concave clearance indicator Overload indication device for a lever hoist InventorsAssigneeApplicationNo. 10978897 filed on 11/01/2004US Classes:701/50, Construction or agricultural-type vehicle (e.g., crane, forklift)460/2Foreign materialExaminersPrimary: Black, Thomas G.Assistant: Diacou, Ari M. Attorney, Agent or FirmInternational ClassesA01D 41/127A01D 75/18 AbstractA system and method for detecting existence of a failed or broken shear bolt supporting all or a portion of a concave of a threshing system of an agricultural combine and utilizing information relating to rates of movement and absence of movement of a concave to determine the existence and non-existence of a failed or broken shear bolt supporting the concave. More particularly, the present system and method is operable to diagnose existence of a broken shear bolt from a rapid downward movement of the concave and non-movement of the concave during operation of a driver for repositioning the concave. Also, existence of a false broken concave condition can be diagnosed by movements of the concave responsive to operation of the driver. | |
