Invention Grant
- Patent Title: Isolation mechanism for electrically isolating controls of boomed apparatus
- Patent Title (中): 电动隔离装置的隔离机构
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Application No.: US10103433Application Date: 2002-03-20
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Publication No.: US07946386B2Publication Date: 2011-05-24
- Inventor: Joshua T. Chard , Edman R. Blair
- Applicant: Joshua T. Chard , Edman R. Blair
- Applicant Address: US AL Birmingham
- Assignee: Altec Industries, Inc.
- Current Assignee: Altec Industries, Inc.
- Current Assignee Address: US AL Birmingham
- Agency: Hovey Williams LLP
- Main IPC: B66F11/00
- IPC: B66F11/00

Abstract:
An isolation mechanism for electrically isolating a control input mechanism of an otherwise substantially conventional boomed apparatus (12), such as, for example, an aerial device, digger derrick, or crane, having a workstation (14) coupled with a movable boom (16), wherein the isolation mechanism allows a worker to control movement of the boom (16) and positioning of the work station (14) 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 (10), 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 (110) constructed of or covered with electrically non-conductive material. In a third embodiment, the improved control input mechanism (10) and the boom extension (110) are combined.
Public/Granted literature
- US20030213644A1 Isolation mechanism for electrocally isolating controls of boomed apparatus Public/Granted day:2003-11-20
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