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. 07, 1978
Filed:
Feb. 22, 1977
Applicant:
Inventor:
Chester G Neukom, Jamestown, ND (US);
Assignee:
Haybuster Manufacturing, Inc., Jamestown, ND (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01B / ; A01C / ;
U.S. Cl.
CPC ...
172267 ; 111 59 ; 111 85 ; 172414 ; 172500 ; 172502 ; 172572 ;
Abstract
A down pressure control for use with furrow openers in grain drills which provides a spring load for maintaining down pressure on the furrow opener during normal operating conditions and which can be at relatively high rate to permit minimum tillage, or work in hard ground, but yet will release upon excessive movement of the furrow opener to prevent overstressing the hold down springs. The down pressure control is used in combination with an individual depth control for each of the furrow openers to insure that each furrow opener is individually controlled as to down pressure and depth.