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:
May. 13, 2008
Filed:
Jul. 07, 2006
Shenghong Yang, Plano, TX (US);
James a Medley, Sparta, MI (US);
Shenghong Yang, Plano, TX (US);
James A Medley, Sparta, MI (US);
Siemens Energy & Automation, Inc., Alpharetta, GA (US);
Abstract
An extendable conveyor includes a support structure, and at least one extendable unit that is supported in a cantilevered manner and that is movable between an extended position and a retracted position nested within the support structure. The extendable unit has at least one support roller for rollingly engaging at least one of another extendable unit and the support structure as the extendable unit is extended or retracted. The conveyor includes a braking device operable to limit rotation of at least one support roller via selective engagement of a braking element with the support roller. The braking device is activatable to disengage the braking element from the support roller in response to actuation of a user input. The braking element is biased to engage the braking element with the support roller when the braking device is deactivated.