Pipe joints or couplings – Vacuum cleaner type
Reexamination Certificate
2006-04-11
2006-04-11
Hewitt, James M. (Department: 3679)
Pipe joints or couplings
Vacuum cleaner type
C285S302000, C285S303000
Reexamination Certificate
active
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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Hewitt James M.
Nixon & Vanderhye P.C.
OMEC S.p.A.
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