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:
Mar. 03, 2009
Filed:
May. 04, 2005
Paul Bradford Blackwelder, Wadsworth, OH (US);
Michael J. Kardohely, West Salem, OH (US);
Paul Bradford Blackwelder, Wadsworth, OH (US);
Michael J. Kardohely, West Salem, OH (US);
The Will-Burt Company, Orville, OH (US);
Abstract
A telescoping mast has a plurality of elongate tubular sections which are telescopically attached to each other and an axial drive screw centrally located in the mast for extending and retracting the elongate tubular section. A gear assembly is connected to the drive screw for rotating the drive screw. A nut carrier assembly is secured to tubular sections. Each nut carrier assembly has a threaded nut housed within a nut carrier. The threaded nut engages corresponding threads on the drive screw. A locking mechanism is provided for locking the gear assembly which has a first section surrounding a second section secured to the gear assembly. The second section has an elongated member extending from a surface of the second section. The first section has at least one slot for engaging the elongated member, thereby preventing rotation of the gear assembly.