Device for adjusting the length of the mast or boom in a windsur

Details Device for adjusting the length of the mast or boom in a windsur Device for adjusting the length of the mast or boom in a windsur

1986-07-10

1988-07-19

Basinger, Sherman D.

Ships

Spars

Gaffs, booms, etc.

403109, B63H 908

Patent

active

047577789

ABSTRACT:
The invention relates to a device for adjusting the length of a telescopic mast or boom in a windsurf. The two tubular elements are fixed by means of an O-ring freely movable on the inner tube and squashed against said inner tube by means of a bushing integral to the external tube.

REFERENCES:
patent: 2344425 (1944-03-01), Snyder
patent: 2685460 (1954-08-01), Ogborn
patent: 3722903 (1973-03-01), Jones
patent: 4419025 (1983-12-01), Takahashi
patent: 4640211 (1987-02-01), Namur

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