Centrifugal fan liner and installing tool therefor

Details Centrifugal fan liner and installing tool therefor Centrifugal fan liner and installing tool therefor

1985-02-25

1987-01-27

Garrett, Robert E.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Passage or casing attached removable liner or wear member

269 484, 156391, B23Q 300, F04D 2942

Patent

active

046391916

ABSTRACT:
In the centrifugal fan unit of an upright vacuum cleaner, the improvement of a metal liner to rehabilitate a worn out fan chamber or to improve the performance of a new centrifugal fan unit comprising a metal plate having an overall shape and size as the original fan chamber in its new condition and an assembly for mounting the liner in the chamber comprising a clamp fully manipulative from only one side of the vacuum cleaner base including a squeezable handle, a shaft passing fore and aft through the handle adapted for reciprocating movement relative to the handle, a bar on the shaft to allow it to pass through the base and reversibly abut the opposite side of the first chamber, a fan blank slidingly received on the shaft to abut the liner over substantially its full surface, a spring cooperative with the squeezable handle to draw the bar and fan blank together to squeeze the liner tightly against the base and a lever to release the clamp when the adhesive is set to hold the liner in position.

REFERENCES:
patent: 797058 (1905-08-01), Hedlund
patent: 1283393 (1918-10-01), Barry
patent: 2121068 (1938-06-01), Buechler
patent: 2246859 (1941-06-01), Pierce
patent: 2365787 (1944-12-01), Wallace
patent: 3136013 (1964-06-01), Funk et al.
patent: 3607600 (1971-09-01), Schreter et al.
patent: 3829238 (1974-08-01), Speck
patent: 4305068 (1981-12-01), Hurst

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