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:
Feb. 28, 1984
Filed:
Jul. 21, 1981
Roy O Christianson, Blomkest, MN (US);
Ted T Christianson, Blomkest, MN (US);
Christianson Systems, Inc., Blomkest, MN (US);
Abstract
The present invention is directed to a folding mechanism for the discharge spout system (12) of a pneumatic conveyor (10). The folding mechanism includes a hinge mechanism (55) having an axis (66) which is skewed with respect to a plane perpendicular to the alignment axis (26) of lower and upper tubes (20, 22). Such a hinge mechanism (55) allows the upper portion of upper tube (22) to pass the lower portion of lower tube (20) while upper tube (22) is pivoting from an operational configuration to a transit configuration. An hydraulic cylinder (68) powers the pivotal movement of upper tube (22). An over-center locking mechanism (84) latches lower and upper tubes (20, 22) in the operational configuration.