Invention Grant
- Patent Title: Strap driven field mast
- Patent Title (中): 带式驱动场桅杆
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Application No.: US11977257Application Date: 2007-10-24
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Publication No.: US07768473B2Publication Date: 2010-08-03
- Inventor: Michael James Kardohely
- Applicant: Michael James Kardohely
- Applicant Address: US OH Orville
- Assignee: The Will-Burt Company
- Current Assignee: The Will-Burt Company
- Current Assignee Address: US OH Orville
- Agency: Fay Sharpe LLP
- Main IPC: H01Q1/10
- IPC: H01Q1/10

Abstract:
A portable telescopic mast assembly with positive retraction for raising and lowering an associated device includes an outer body and a plurality of mast sections slideably engaged with the outer body. A lifting cable is disposed between the plurality of mast sections. The lifting cable operatively connects the plurality of mast sections so as to urge one or more of the mast sections towards an extended position. The lifting cable includes a first end and a second end, the first end being secured to an inner most mast section of the plurality of mast sections. A retraction cable is disposed at least partially inside the outer body. The retraction cable includes a first end and a second end, the first end being secured to the inner most mast section. A winch is secured to the outer body. The winch includes a first output and a second output, the second end of the lifting cable operatively connected to the first output and the second end of the retraction cable operatively connected to the second output.
Public/Granted literature
- US20090110527A1 Strap driven field mast Public/Granted day:2009-04-30
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