Improvements in or relating to vacuum cleaners
Реферат: 447,299. Vacuum cleaner dust-bags; pipe couplings. GENERAL ELECTRIC CO., Ltd., and JONES, W. G., Magnet House, Kingsway, London. Jan. 8, 1935, No. 648. [Classes 8 (ii) and 99 (i)] A dust receptacle is supported from the pivoted propulsion handle of a vacuum cleaner and comprises a removable paper bag within an enclosing bag and having a tubular inlet 5 connected to the fan outlet by a metal tube 14 and a rubber or other flexible hose 3. The end of this hose next the bag is formed with inner and outer tubular parts 12, 13 which fit tightly over the metal tube and grip the inlet 5 between them ; the part 13 can be rolled back to connect or release the inlet 5 and metal tube 14. The outer bag may have a zip fastener and is fitted with a flanged metal connecting ring 20 against a face 23 of which the end 4 of the rubber hose abuts. The paper bag may be reinforced around the inlet by a layer of paper &c. secured by adhesive tape, and may be provided with an extension 9 of the inlet tube, reaching to the mid point of the bag.
Bagless vacuum cleaner
Номер патента: US20240285139A1. Автор: Nicholas Gerald Grey. Владелец: Grey Technology Ltd. Дата публикации: 2024-08-29.