Telescoping vacuum-cleaner suction pipe assembly

Pipe joints or couplings – Vacuum cleaner type

Patent

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Details

285303, 285316, F16L 3500

Patent

active

059415754

ABSTRACT:
A telescoping vacuum-cleaner pipe assembly has a guide sleeve on an outer pipe which cooperates with an actuating sleeve displaceable against the force of a ring spring on the guide sleeve to lock and unlock a detent engageable in recesses on an inner pipe. The ring spring is held between the actuating sleeve and an annular cap locking into the actuating sleeve.

REFERENCES:
patent: 3244437 (1966-04-01), Belicka
patent: 3351363 (1967-11-01), Downey
patent: 4641859 (1987-02-01), Walters
patent: 5046761 (1991-09-01), Cordes
patent: 5305984 (1994-04-01), Chen
patent: 5332266 (1994-07-01), Canale
patent: 5692782 (1997-12-01), Fischer
patent: 5836620 (1998-11-01), Wang et al.

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