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:
Jul. 29, 1980
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 / ;
U.S. Cl.
CPC ...
111 85 ; 111 62 ; 111 87 ; 111 88 ;
Abstract
A seed drill has a frame, a transverse hopper and a series of triple disc coulters mounted on the frame below the hopper. The coulters are each mounted on the frame by a parallelogram linkage which maintains the proper relative positions of the front and rear discs of the coulters at different penetration depths and permits the maximum transport height of the coulters.