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:
Aug. 26, 2008
Filed:
Sep. 17, 2003
Joshua T. Chard, Birmingham, AL (US);
Edman R. Blair, St. Joseph, MO (US);
Joshua T. Chard, Birmingham, AL (US);
Edman R. Blair, St. Joseph, MO (US);
Altec Industries, Inc., Birmingham, AL (US);
Abstract
An isolation mechanism for electrically isolating a control input mechanism of an otherwise substantially conventional boomed apparatus (), such as, for example, an aerial device, digger derrick, or crane, having a workstation () coupled with a movable boom (), wherein the isolation mechanism allows a worker to control movement of the boom () and positioning of the work station () while protecting against electrical discharge along substantially any path which includes the control input mechanism. In a first embodiment, the isolation mechanism takes the form of an improved control input mechanism (), portions of which are constructed of or covered with an electrically non-conducting material. In a second embodiment, the isolation mechanism takes the form of a boom extension () constructed of or covered with electrically non-conductive material. In a third embodiment, the improved control input mechanism () and the boom extension () are combined.