Invention Grant
- Patent Title: Method to increase the head rope life for single conveyance friction mine hoists for deep shafts
- Patent Title (中): 提高单轴运输摩擦矿井起重机深井的头绳寿命的方法
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Application No.: US12126696Application Date: 2008-05-23
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Publication No.: US09010496B2Publication Date: 2015-04-21
- Inventor: Borje Johansson , Sigurd Grimestad
- Applicant: Borje Johansson , Sigurd Grimestad
- Applicant Address: SE
- Assignee: ABB AB
- Current Assignee: ABB AB
- Current Assignee Address: SE
- Agency: St. Onge Steward Johnston & Reens LLC
- Main IPC: B66B7/06
- IPC: B66B7/06 ; B66B7/10 ; B66B19/00
Abstract:
The invention relates to a device and system for underground transport of ore, material and people, which includes electrical and mechanical drive systems, a plurality of hoisting devices, head ropes and balance ropes. The mass per meter of the balance ropes is significantly smaller than the mass per meter of the head ropes.
Public/Granted literature
- US20080223664A1 Method To Increase The Head Rope Life For Single Conveyance Friction Mine Hoists For Deep Shafts Public/Granted day:2008-09-18
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