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:
Nov. 15, 1994
Filed:
May. 17, 1993
William A Mensch, Farmington, MI (US);
Jervis B. Webb Company, Farmington Hills, MI (US);
Abstract
An endless belt conveyor has vertically spaced, oppositely moving, upper and lower load carrying runs having entrance and exit ends, with the entrance end of one run being adjacent to the exit end of the other run. A first series of rollers disposed between the exit end of the upper run and the entrance end of the lower run direct the belt downwardly, around a drive roller driven by a first drive unit, around a dynamic takeup roller, toward the entrance end of the lower run along a first depressed section of belt travel below the level of the lower run, and upwardly to the entrance end of the lower run from a static takeup installed below the lower run. A second series of rollers disposed between the exit end of the lower run and the entrance end of the upper run direct the belt downwardly from the lower run exit end, along a second depressed section of belt travel below the level of the lower run, around a drive roller driven by a second drive unit, around a dynamic takeup roller, and upwardly to the entrance end of the upper run. Lower run feed and take-away conveyors, respectively arranged above the first and second depressed sections of belt travel, converge into and diverge from alignment with the lower run entrance and exit ends for the in-line transfer of articles to and from the lower run. Upper run feed and take-away conveyors are aligned longitudinally with the upper run entrance and exit ends. Load sharing of the first and second drive units is provided by the use of NEMA 'B' type AC drive motors and by a fluid coupling connecting each motor to its speed reducer.