ES14265U - Mask perfected to protect the respiratory tract against dust. (Machine-translation by Google Translate, not legally binding)
- Google Patents
Mask perfected to protect the respiratory tract against dust. (Machine-translation by Google Translate, not legally binding)
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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WOESNER OTTO
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WOESNER OTTO
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Priority to ES0014265UpriorityCriticalpatent/ES14265Y/en
Publication of ES14265UpublicationCriticalpatent/ES14265U/en
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Publication of ES14265YpublicationCriticalpatent/ES14265Y/en
Respiratory Apparatuses And Protective Means
(AREA)
Abstract
An improved mask to protect the respiratory tract against dust, characterized by the fact of being formed by a bowl or middle bladder, of porous rubber, with walls of uniform thickness, in which a cut or fissure has been practiced, in which an expulsion and retention valve is plugged in and fixed to evacuate the air already breathed, thus avoiding that the water vapor, which it contains, condense within the porous walls of the bladder, and humidify and knead the dust that before, when aspirating ambient air, it has been deposited or retained by filtration. (Machine-translation by Google Translate, not legally binding)
ES0014265U1946-12-141946-12-14
Mask perfected to protect the respiratory tract against dust.
ExpiredES14265Y
(en)
Open-air respirator, equipped with a mask with an air intake valve, automatically controlled, and a discharge valve (Machine-translation by Google Translate, not legally binding)