TOOL FOR A VACUUM CLEANER
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
N/A
app pub date -
Jul 12, 2017
filing date -
Jul 13, 2016
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
A vacuum cleaner flexible duct. The flexible duct includes a helical frame and a helical strip. The helical frame includes a plurality of loops arranged about a helical axis and is formed of a rigid material. The helical strip is provided on the helical frame to seal the flexible duct and is formed of pliable material and. At least one loop of the helical frame has one or more projections that extend towards an adjacent loop. The projections limit the flexing of the flexible duct in a direction normal to the helical axis.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully