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:
Oct. 23, 2012
Filed:
Aug. 12, 2008
Geoffrey George Campbell, Kensington, AU;
Hugh Lithgow Stark, Kareela, AU;
Alexander Mckechran Hardie Mcneil, Gladesville, AU;
Frank Fornasari, Springwood, AU;
Geoffrey George Campbell, Kensington, AU;
Hugh Lithgow Stark, Kareela, AU;
Alexander McKechran Hardie McNeil, Gladesville, AU;
Frank Fornasari, Springwood, AU;
JLG Industries, Inc., McConnellsburg, PA (US);
Abstract
A lift system is coupled between a work platform and a mast on a mast lift. The lift system includes at least one lifting rope connected between the work platform and the mast via an idler roller and a hoist drum connected to the work platform. The idler roller is displaceable between an engaged position and a disengaged position based on an amount of tension on the lifting rope. A spring is connected to the idler roller and urges the idler roller toward the engaged position. A carriage latch assembly includes a carriage latch hook coupled with the idler roller and a pin secured to the mast. When the idler roller is disposed in the engaged position, the carriage latch hook is engageable with the pin.