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:
Jun. 21, 1977
Filed:
Jul. 11, 1975
Applicant:
Inventors:
Alfred J Bailey, Berkswell, EN;
Malcolm Dean, Green Lane, EN;
Assignee:
Massey-Ferguson Services N.V., Curacao, NE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01C / ; E01C / ; F01B / ;
U.S. Cl.
CPC ...
222317 ; 222504 ; 92 138 ; 239687 ;
Abstract
A spreader for fertilizer or similar material has a metering mechanism for said material to vary the rate of spreading. The metering mechanism has two metering members in face-to-face contact defining a metering opening. A hydraulic ram moves the metering members so as to open and close the opening. An adjustable stop within the ram allows the ram's stroke to be changed. This changes the extent to which the ram can open the opening so that the ram can be supplied with fluid under sufficient pressure to overcome possible corrosion between the metering members.