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:
Apr. 06, 1976
Filed:
Nov. 25, 1974
Applicant:
Inventors:
Bjarne Omdal, Porsgrunn, NO;
Johs Skaadel, Skien, NO;
Assignee:
Norsk Hydro a.s, Oslo, NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01N / ; A62C / ; A01C / ; A01C / ;
U.S. Cl.
CPC ...
239-8 ; 239654 ;
Abstract
Granular material, such as a fertilizer, is continuously or intermittently fed into one or several launching tubes and compressed air pulses are introduced at regular time intervals behind each quantity which at any time has been fed into the tube(s), so that part quantities of the material are shot out at a certain rate and over a certain range.