Boom pole

Details Boom pole Boom pole

2007-01-27

2009-12-29

Macarthur, Victor (Department: 3679)

Joints and connections

Articulated members

Lockable at fixed position

C403S290000

Reexamination Certificate

active

07637684

ABSTRACT:
The present invention relates to a locking means (1) for use in releasably locking a first tubular structure (100) of a first diameter and a second tubular structure (101) of a second diameter in a predetermined position telescopically in relation to each other. The second diameter is less than the first diameter and the locking means comprises a component (2) adapted for gripping at least the second tubular structure and a component (5) adapted in use to cause the locking means to have a locked position in which the second tubular structure is held in place relative to the first tubular structure and an open position in which the second tubular structure is telescopically movable relative to the first tubular structure.

REFERENCES:
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patent: 4238164 (1980-12-01), Mazzolla
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patent: 5649780 (1997-07-01), Schall
patent: 6142698 (2000-11-01), Nutter
patent: 6520192 (2003-02-01), Lo
patent: 6761501 (2004-07-01), Nakatani
patent: 3807028 (1989-09-01), None
patent: 0021795 (1981-01-01), None
patent: 0299491 (1989-01-01), None
patent: 2600198 (1987-12-01), None
patent: 2764950 (1998-12-01), None
patent: 03024545 (2003-03-01), None
International Search Report of PCT/GB2007/000180.
Search Report of Application No. GB0601441.9.

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