Vacuum-cleaner bag and method for extending the service life...

Details Vacuum-cleaner bag and method for extending the service life... Vacuum-cleaner bag and method for extending the service life...

2004-12-17

2010-06-29

Smith, Duane (Department: 1797)

Gas separation: processes

Filtering

C055S368000, C055S372000, C055S382000, C055S515000, C055SDIG020, C015S347000, C095S287000

Reexamination Certificate

active

07744680

ABSTRACT:
Described is a vacuum-cleaner bag which is made of an air-permeable filter material and forms a closed dust-collecting chamber, the vacuum-cleaner bag containing a material which can be whirled up under a given air flow.

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