GB433190A - Improvements in or relating to the manufacture of filtering masses for removing aerosols and like minute suspended matter from the atmosphere
- Google Patents
Improvements in or relating to the manufacture of filtering masses for removing aerosols and like minute suspended matter from the atmosphere
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.)
Expired
Application number
GB6771/35A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pirelli and C SpA
Original Assignee
Pirelli SpA
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Filing date
Publication date
Application filed by Pirelli SpAfiledCriticalPirelli SpA
Publication of GB433190ApublicationCriticalpatent/GB433190A/en
A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
A62B21/00—Devices for producing oxygen from chemical substances for respiratory apparatus
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Health & Medical Sciences
(AREA)
Emergency Medicine
(AREA)
Pulmonology
(AREA)
General Health & Medical Sciences
(AREA)
Business, Economics & Management
(AREA)
Emergency Management
(AREA)
Filtering Materials
(AREA)
Abstract
A filter for the removal of aerosols &c. from the atmosphere is formed of an intimate mixture of fibres with an inert powder, e.g. wool and resin spun into a yarn and used as such or as a fabric woven wholly or partly therefrom. The mixture may be produced by twisting the fibre in a liquid suspension of resin and ebonite, or the materials may be bonded by slight fusion of one of them. Specifications 380,965, 395,918, and 433,186, [all in Group XXVIII], are referred to.
GB6771/35A1934-03-021935-03-04Improvements in or relating to the manufacture of filtering masses for removing aerosols and like minute suspended matter from the atmosphere
ExpiredGB433190A
(en)