VALASEK JARMIL (CZ)
HYLAK CESTMIR (CZ)
RADEK MALINA (CZ)
VALASEK JARMIL (CZ)
HYLAK CESTMIR (CZ)
WO2009066833A1 | 2009-05-28 | |||
WO2001078839A2 | 2001-10-25 |
EP0329941A2 | 1989-08-30 | |||
EP0310970A1 | 1989-04-12 | |||
US6763830B1 | 2004-07-20 |
Claims for protection 1. Self-acting closure of the filter-ventilating unit, characterized in that the mouth (2) of the filter-ventilating unit is equipped by closing mechanism (1) which is open in the moment when the filter-ventilating unit (2) is equipped by the filter (4) which pushes the closing mechanism (1) away. 2. Self-acting closure of the filter-ventilating unit according to the claim 1, characterized in that for higher efficiency a seal (3) is placed between the closing mechanism (1) and the body of the filter-ventilating unit (2). |
Technology area
This technical solution relates to the structural arrangement of self-acting closure of filter- ventilating unit in the input during the removal of the filter when the opening to the filter- ventilating unit is being closed.
Present condition of technology
In the present time the filter-ventilating units do not have any mechanisms to prevent the intrusion of dirt into the unit in the case that the filter is not placed. This may endanger the health of the user of filter- ventilating unit due to inhalation of particulates, which came into the unit at the time of the removed filter.
Principle of technical solution
The above deficiencies are largely solved by the constructional design of the filter-ventilating unit according to this technical solution, where the input opening of the filter-ventilating unit is equipped with a closing mechanism that closes the opening in the moment when the unit is not equipped with a filter or in the moment when the filter is removed from the drive. During the connection of filter to an input opening of filter-ventilating unit the filter pushes the closing mechanism away and thus the closing mechanism is open and the input opening of the filter-ventilating unit is released, what will allow the subsequent flow of filtered air into the drive. For the opening of the closing mechanism a filter has a special extension on a junction with the filter- ventilating unit, which allows opening of a unit.
Summary of the pictures in the drawing
Technical solutions will be specified by drawings, where the Fig. 1 shows the cross-section of the filter-ventilating unit with a closing mechanism without the fixed filter and Fig. 2 shows the cross-section of the filter-ventilating unit with fixed filter and with open closing mechanism. Example of technical solution conduct
The mouth 2 of the filter-ventilating unit is equipped in place of the filter connection 4 by closing mechanism 1, which closes the mouth 2 of filter-ventilating unit in case that the filter 4 is not connected. During the connection of the filter 4 to the mouth 2 of the filter-ventilating unit the closing mechanism 1 is open by the filter 4 connected to the mouth 2 of the filter- ventilating unit to enable the filtered air flow into the unit. For higher efficiency a seal 3 is placed between the closing mechanism i and the mouth of the filter- ventilating unit 2.
Industrial efficiency
This technical solution is usable on all types of filter-ventilating units, which use the interchangeable filters.