Arrangement for connecting an attachment to a vacuum cleaning de

Details Arrangement for connecting an attachment to a vacuum cleaning de Arrangement for connecting an attachment to a vacuum cleaning de

1977-07-13

1979-01-16

Schroeder, Werner H.

Pipe joints or couplings

Vacuum cleaner type

285317, 285328, 285331, 2853322, 285 24, 138115, 138116, A47L 924

Patent

active

041346050

ABSTRACT:
An arrangement for connecting an attachment to a vacuum cleaning device includes two connecting sleeves, one on the attachment and the other on the device. One of the connecting sleeves has an inner and an outer portion which together bound a groove in which a projecting portion of the other connecting sleeve is received in the assembled condition. The shapes of such portions are identical but the dimensions thereof are proportionately different. Each of the portions includes a part-cylindrical circumferential zone and a polygonal zone gradually merging with the part-circular zone and complementing the same into the respective circumferentially complete portion. The other connecting sleeve may have a transverse wall at the polygonal zone, which abuts against a corresponding transverse region of the one connecting sleeve, and a seal may be sandwiched therebetween in the assembled condition. Another seal may be accommodated in the groove in the assembled condition.

REFERENCES:
patent: 714476 (1902-11-01), Grubbs
patent: 1483028 (1924-02-01), Walsh
patent: 2159116 (1939-05-01), Zacharias
patent: 2245151 (1941-06-01), Martinet
patent: 2832612 (1958-04-01), Coutts

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