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:
Jun. 30, 2020
Filed:
Jan. 16, 2018
Thyssenkrupp Industrial Solutions (Usa), Inc., Greenwood Village, CO (US);
Martin S. Lurie, Englewood, CO (US);
Mark Alspaugh, Littleton, CO (US);
Ruben E. Lezius, Greenwood Village, CO (US);
Kalin Tonchev, Greenwood Village, CO (US);
R. Steven Kasper, Parker, CO (US);
Vladimir Svirsky, Aurora, CO (US);
THYSSENKRUPP INDUSTRIAL SOLUTIONS (USA), INC., Greenwood Village, CO (US);
Abstract
A tensioning system maintains tension within a target range for an endless belt of a conveyor. The tensioning system may include a movable carriage that supports a take-up pulley that provides tension to the conveyor belt. The tensioning system may also include various hydraulic components supported on a repositionable cart. One example hydraulic component is a hydraulic cylinder that is in tension between the movable carriage and the repositionable cart. An accumulator initially pressurized to a predetermined pressure may be connected so as to supply pressure to the hydraulic cylinder. One or more flow-restriction valves between the hydraulic cylinder and the accumulator may substantially increase a pressure in the hydraulic cylinder during phases when a piston rod is rapidly drawn out of the hydraulic cylinder by tension waves in the endless belt. Further, a check valve may permit substantially unimpeded fluid flow from the accumulator to the hydraulic tensioning cylinder.