The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 27, 1979
Filed:
Apr. 20, 1977
Sperry Rand Corporation, New Holland, PA (US);
Abstract
The invention relates to combine harvesters having stone traps for collecting stones and other foreign objects before they reach the threshing means of the harvesters and enabling the trapped stones to be easily removed from the harvesters. A combine harvester according to the present invention comprises a crop elevator having a rear discharge end, threshing means including a rotatable cylinder and a cooperable concave forming a nip therebetween; the nip being spaced rearwardly of the discharge end to define an opening directed downwardly to a stone trap having a lower wall extending downwardly and forwardly to a forward edge; the stone trap having an outlet closable by a door which is pivotally mounted on the forward edge and which, in a closed position thereof, seals against an underside surface of the crop elevator, the crop elevator being capable of adopting an operative position in which the forward edge of the stone trap is disposed beneath the elevator and in which the stone trap extends forwardly of and beneath the discharge end of the elevator.