Gas separation – Flexible or collapsible bag type – Valved – self-closing – or apparatus contained bag closing means
Patent
1999-02-12
2000-10-24
Simmons, David A.
Gas separation
Flexible or collapsible bag type
Valved, self-closing, or apparatus contained bag closing means
55369, 55377, 55378, 55DIG2, B01D 4602
Patent
active
061360562
ABSTRACT:
A connection member for a filter bag for vacuum cleaning equipment. The member has a base with two superposed base layers of stiff material which together define a first passage opening. A slide element, located between the two layers of the base, has a second passage opening therein which in an initial position is aligned with the first passage opening. By pulling on a handle portion of the slide element, the first passage opening is closed by a closure element that is connected to the slide element. The closure element, in the initial position, is in the form of a strand of incompletely cured plastic material. Upon application of a tensile force, the strand is adapted to plastically deform. The plastic material furthermore adheres on the one side to the slide element and on an opposed side to the base. Upon movement of the slide element into the closed position, the material is adapted to stretch in the longitudinal direction and to be drawn out as a diaphragm closing the first passage opening.
REFERENCES:
patent: 5468272 (1995-11-01), Schmierer
patent: 5472460 (1995-12-01), Schmierer
patent: 5472465 (1995-12-01), Schmierer
patent: 5772712 (1998-06-01), Perea et al.
patent: 5935280 (1999-08-01), Lee
Branofilter GmbH
Pham Minh-Chau T.
Simmons David A.
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