GB394796A - Improvements in filters for vacuum cleaners - Google Patents

Improvements in filters for vacuum cleaners

Info

Publication number
GB394796A
GB394796A GB13347/32A GB1334732A GB394796A GB 394796 A GB394796 A GB 394796A GB 13347/32 A GB13347/32 A GB 13347/32A GB 1334732 A GB1334732 A GB 1334732A GB 394796 A GB394796 A GB 394796A
Authority
GB
United Kingdom
Prior art keywords
vacuum cleaners
filters
filter
layer
herrenacker
Prior art date
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
GB13347/32A
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.)
Electrolux Household Appliances Ltd
Original Assignee
Electrolux Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Electrolux Ltd filed Critical Electrolux Ltd
Publication of GB394796A publication Critical patent/GB394796A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/12—Dry filters
    • A47L9/122—Dry filters flat

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

394,796. Air filters. ELECTROLUX, Ltd., 153, Regent Street, London.- (Assignees of Inventia Patent-Verwertungs. Ges.; 10, Herrenacker, Schaffhausen, Switzerland.) May 9, 1932, No. 13347. Convention date, May 11, 1931. [Class 8 (ii).] A filter for vacuum cleaners consists of a layer 17 of unwoven fibres, lying parallel to one another in the plane of the filter, supported on gauze 16, with a layer 18 of fabric such as flannel preferably spaced from the first two layers. The whole is secured on a carrier ring 20.
GB13347/32A 1931-05-11 1932-05-09 Improvements in filters for vacuum cleaners Expired GB394796A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE394796X 1931-05-11

Publications (1)

Publication Number Publication Date
GB394796A true GB394796A (en) 1933-07-06

Family

ID=6396731

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13347/32A Expired GB394796A (en) 1931-05-11 1932-05-09 Improvements in filters for vacuum cleaners

Country Status (1)

Country Link
GB (1) GB394796A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2548942A (en) * 1947-06-06 1951-04-17 Electrolux Corp Air filter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2548942A (en) * 1947-06-06 1951-04-17 Electrolux Corp Air filter

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