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:
Jan. 29, 2019
Filed:
Aug. 15, 2017
Thyssenkrupp Industrial Solutions (Usa), Inc., Greenwood Village, CO (US);
Martin S. Lurie, Englewood, CO (US);
R. Steven Kasper, Parker, CO (US);
THYSSENKRUPP INDUSTRIAL SOLUTIONS (USA), INC., Greenwood Village, CO (US);
Abstract
A conveyor system, at least a portion of which may traverse a continuous slope sufficiently steep such that tensile forces associated with overcoming the effects of the slope are several times larger per unit length of run than tensile forces per unit length of run due to main frictional resistance of the conveyor system, may include a belt-on-belt drive. The belt-on-belt drive may include at least one internal belt configured to operably engage the carry belt of the conveyor system so as to frictionally drive the carry belt over at least a one-third length of the sloped run. At the portion of the external belt driven by the at least one internal belt, the rate of tension change in the external belt may be configured to be approximately zero or a modest rise. In some embodiments, the longitudinal stiffness of the at least one internal belt may be substantially greater than the external belt's longitudinal stiffness.