Interface arrangement for a filter bag in a vacuum cleaner

Details Interface arrangement for a filter bag in a vacuum cleaner Interface arrangement for a filter bag in a vacuum cleaner

1992-08-03

1993-06-22

Hart, Charles

Gas separation

Flexible or collapsible bag type

Valved, self-closing, or apparatus contained bag closing means

15352, 55373, 55378, 55DIG2, B01D 4600

Patent

active

052213030

ABSTRACT:
The invention relates to an electric vacuum cleaner having a filter bag intermediate carrier disposed between a filter cassette arranged above a motor-driven blower and the motor housing. The intermediate carrier is pivotally mounted via a hinge and has guide cams which dip into engaging recesses of a base plate of the filter bag. The vacuum cleaner apparatus can only be operated with filter bags which are specific to this apparatus. Safety cams are formed on the intermediate carrier and follow the inner wall surface of the filter cassette when the intermediate carrier is closed. Catches are formed on the inner wall surface but do not catch the safety cams if an authorized filter bag is placed in the filter cassette. However, if an unauthorized filter bag is placed in the filter cassette, then the structure of this filter bag causes the safety cams to deflect and catch in the catches thereby preventing the operator from completely closing the intermediate carrier on the filter cassette.

REFERENCES:
patent: 4851019 (1989-07-01), Ahlf et al.

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