Vacuum cleaners and hoses
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
May 24, 2007
app pub date -
Jan 21, 2005
filing date -
Feb 21, 2004
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A vacuum cleaner hose (2) has an inner flexible section (25) slidable within an outer flexible section (20). A rear end fitting (28) on the inner section prevents it being pulled from the outer section and seals with a coupling (24) at the forward end of the outer section (20) when fully extended. The inner section (25) has a natural extended length and is retracted for storage by closing a valve at the forward end of the hose (2) so that suction from the cleaner (1) causes a reduced pressure within the hose sufficient to retract the inner section. The inner section (25) is retained within the outer section (20) by engaging a coupling (33) at the forward end of the inner section with the coupling (24) at the forward end of the outer section.
First Claim
Family
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Cited Art Landscape
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