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:
Sep. 15, 1981
Filed:
Jan. 12, 1979
Applicant:
Inventor:
Glen D Hansen, Maple Plain, MN (US);
Assignee:
Veda, Inc., Long Lake, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65G / ;
U.S. Cl.
CPC ...
414315 ; 406114 ;
Abstract
A top unloading silo unloader pendently supported from a tripod with a cable connected to a motor operated winch. An automatic silo unloader let-down control system is operably connected to the winch motor to energize the motor once during each revolution of the unloader to lower the unloader in the silo. The let-down control system has a control switch mounted on the unloader which is actuated by the rotating part of the unloader once during each revolution of the part. An automatic time delay unit is adjustable to control the duration of operation of the winch motor thereby controlling the amount of let-down of the silo unloader.