Tube coupling for vacuum cleaners

Details Tube coupling for vacuum cleaners Tube coupling for vacuum cleaners

1977-07-07

1978-09-19

Callaghan, Thomas F.

Pipe joints or couplings

Vacuum cleaner type

285317, 285DIG22, F16L 3708

Patent

active

041149270

ABSTRACT:
A wand assembly for a vacuum cleaner comprised of a pair of tubes, one of which is adapted to be telescopically fit into the other. The tubes are held together by a button resiliently biased to extend through alignable holes in the tubes. The resilient biasing of the button is provided by a spring within the inner tube and affixed to the inner walls of the inner tube at a pair of positions longitudinally spaced on opposite sides of the hole through which the button extends.

REFERENCES:
patent: 2102802 (1937-12-01), Lofgren
patent: 2582446 (1952-01-01), Martinet
patent: 3164351 (1965-01-01), Rembowski
patent: 3214187 (1965-10-01), Fuerst
patent: 3950014 (1976-04-01), Doubleday

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