ZA8902525B - Extensible mast - Google Patents

Extensible mast

Info

Publication number
ZA8902525B
ZA8902525B ZA892525A ZA8902525A ZA8902525B ZA 8902525 B ZA8902525 B ZA 8902525B ZA 892525 A ZA892525 A ZA 892525A ZA 8902525 A ZA8902525 A ZA 8902525A ZA 8902525 B ZA8902525 B ZA 8902525B
Authority
ZA
South Africa
Prior art keywords
extensible mast
mast
extensible
Prior art date
Application number
ZA892525A
Inventor
Henry J Mcginnis
J Mcginnis Henry
Original Assignee
Rapid Deployment Towers Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US07/178,563 priority Critical patent/US4866893A/en
Application filed by Rapid Deployment Towers Inc filed Critical Rapid Deployment Towers Inc
Publication of ZA8902525B publication Critical patent/ZA8902525B/en

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/18Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures movable or with movable sections, e.g. rotatable, telescopic
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/1235Collapsible supports; Means for erecting a rigid antenna
ZA892525A 1988-04-07 1989-04-05 Extensible mast ZA8902525B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US07/178,563 US4866893A (en) 1988-04-07 1988-04-07 Extensible mast

Publications (1)

Publication Number Publication Date
ZA8902525B true ZA8902525B (en) 1990-03-28

Family

ID=22653038

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA892525A ZA8902525B (en) 1988-04-07 1989-04-05 Extensible mast

Country Status (5)

Country Link
US (1) US4866893A (en)
EP (1) EP0336747A3 (en)
AU (1) AU605971B2 (en)
IL (1) IL89863A (en)
ZA (1) ZA8902525B (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5025606A (en) * 1989-04-27 1991-06-25 Rapid Deployment Towers, Inc. Guy control system for extensible mast
CA2087441A1 (en) * 1990-07-16 1992-01-17 Michael Patrick Mcdonnell Extendable mast support system
AUPM810594A0 (en) * 1994-09-13 1994-10-06 Mitchell, John Albert Improved structural member
DE19716886C2 (en) * 1997-04-22 2001-02-01 Sick Ag Method and device for reading a bar code
US6104910A (en) * 1997-06-09 2000-08-15 Koths; Kerry R. Stabilized mobile relay station
CN1188577C (en) 2000-09-22 2005-02-09 塔方案有限公司 Retractable column and method of forming
US7231741B2 (en) * 2001-03-30 2007-06-19 Sbc Technology Resources, Inc. Mobile cellular telephone tower
US7357365B2 (en) 2003-04-17 2008-04-15 Tower Solutions, Llc Extendable/retractable support column
US7694486B2 (en) * 2003-12-12 2010-04-13 Alliant Techsystems Inc. Deployable truss having second order augmentation
DE202004009782U1 (en) * 2004-06-22 2005-11-03 Liebherr-Werk Ehingen Gmbh Crane lattice jib and crane
US7015872B1 (en) * 2004-07-13 2006-03-21 Little Carl H Mast assembly
US8042305B2 (en) * 2005-03-15 2011-10-25 Alliant Techsystems Inc. Deployable structural assemblies, systems for deploying such structural assemblies
US7694465B2 (en) * 2005-04-08 2010-04-13 Alliant Techsystems Inc. Deployable structural assemblies, systems for deploying such structural assemblies and related methods
US20110012003A1 (en) * 2005-04-19 2011-01-20 Geo Systems, Inc. Apparatus and methods for providing a retractible mast
EP2633221A4 (en) * 2010-10-29 2018-02-14 Tower Solutions, LLC Extendable/retractable support column
US8522511B2 (en) 2010-12-20 2013-09-03 Raytheon Company Methods and apparatus for mast system with enhanced load bearing
ITTO20120863A1 (en) * 2012-10-04 2014-04-05 Drillmec Spa MOBILE DRILLING SYSTEM.
DE202015000425U1 (en) * 2015-01-23 2016-04-26 Deutsches Zentrum für Luft- und Raumfahrt e.V. Parabolic trough collector module, parabolic trough collector module unit and solar thermal power plant
US10119292B1 (en) 2015-07-02 2018-11-06 M.M.A. Design, LLC Deployable boom and deployable boom with solar blanket

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2130993A (en) * 1936-07-02 1938-09-20 Dubiller William Collapsible rod
DE939756C (en) * 1952-10-04 1956-03-01 Telefunken Gmbh Winding device for extendable and retractable masts
US3012635A (en) * 1958-06-06 1961-12-12 Willard E Blain Chain column hoist
US3016988A (en) * 1959-10-19 1962-01-16 Charles W Browning Lifting device
US3033529A (en) * 1961-03-10 1962-05-08 Craig Systems Inc Automatic guy tensioning device for erection of masts
US3213573A (en) * 1962-07-12 1965-10-26 Thiokol Chemical Corp Extensible and retractable member
US4625475A (en) * 1985-05-13 1986-12-02 Mcginnis Henry J Extensible mast

Also Published As

Publication number Publication date
IL89863A (en) 1991-03-10
EP0336747A2 (en) 1989-10-11
IL89863D0 (en) 1989-12-15
EP0336747A3 (en) 1990-08-01
US4866893A (en) 1989-09-19
AU3253389A (en) 1989-10-12
AU605971B2 (en) 1991-01-24

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