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. 02, 1989
Filed:
Nov. 23, 1987
Applicant:
Inventor:
Charles Balmer, Elie, Manitoba, CA;
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
A01C / ;
U.S. Cl.
CPC ...
239655 ; 239523 ;
Abstract
A pneumatic distribution system for particulate material includes a tank and a plurality of pipes extending outwardly from the tank to respective sides thereof. Each of the pipes forms part of the duct from a metering system and carries the particular material in an air stream to a spreader nozzle at the end of the pipe. At a position before the end of the pipe, and extraction nozzle is mounted in the pipe formed by a curved plate having a leading edge transversed to the pipe with a curved plate mounted in an opening in the pipe so as to extract the material and direct it outwardly onto a guide plate which forms a spread pattern.