Telescopic extension for an electric household appliance

Pipe joints or couplings – Vacuum cleaner type

Reexamination Certificate

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Details

C285S302000, C285S303000

Reexamination Certificate

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07025383

ABSTRACT:
A telescopic extension (1) comprises an inner tube (2), an outer tube (3) and a sleeve (4) in which a constraining element (21) and a thrust slider (30) are movably supported; the constraining element (21) is capable of making integral the inner tube (2) and the outer tube (3) and the thrust slider (30) is connected to an actuating element (40) and is engaged with the constraining element (21) under the action of a spring (31); the constraining element (21) consists of a projection of an elastic tongue (16) having one end (19) formed as one piece with the sleeve (4).

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patent: 6832784 (2004-12-01), Chen
patent: 0 520 534 (1992-12-01), None
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patent: 1 033 103 (2000-09-01), None
patent: 1 092 383 (2001-04-01), None
patent: 98/56289 (1998-12-01), None

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