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:
May. 22, 1979
Filed:
Mar. 16, 1978
Applicant:
Inventors:
Alfred J Bailey, Berkswell, GB;
Ronald S Sargent, Kenilworth, GB;
Assignee:
Massey-Ferguson Services N.V., Curacao, AN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01C / ; A01B / ; A01B / ;
U.S. Cl.
CPC ...
111 66 ; 111 85 ; 172462 ; 172464 ; 172691 ;
Abstract
Seed drill has a row of coulters which are raised and lowered by a beam extending along and above the row of coulters and connected to the coulters by spring assemblies. The beam is raised and lowered relative to the frame of the drill by two rams to actuate the coulters. The mounting of the beam comprises an articulated joint, such as a ball joint, which permits the ends of the beam to rise and fall independently of each other relative to the frame thereby permitting improved contour following by the coulters and avoiding excessive loads on the beam in the event of failure of one of the rams.