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:
Dec. 13, 1988
Filed:
Oct. 22, 1986
George B Wall, Delhi, IA (US);
Highway Equipment Company, Cedar Rapids, IA (US);
Abstract
Spreading apparatus for attachment to a vehicle for distributing granular materials such as fertilizer and the like, using air as the distributing medium. The spreading apparatus includes a rear-mounted boom and an air system in which the material distribution passageways are substantially straight from the discharge of the fans to the point of material introduction to the discharge nozzles along the boom. This is achieved by the use of two blowers that move air in opposite directions through a cross-over tube array into which the already-divided material is introduced into individual air passageways leading to the discharge nozzles mounted along the boom. The boom itself is designed so that it can be quickly and easily folded and pivoted for storage or transport.