Mixing device having axially adjustable mixing blades
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United States of America Patent
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-
Oct 25, 1994
Grant Date -
N/A
app pub date -
Oct 1, 1993
filing date -
Oct 21, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The vessel of a mixing device accommodates a mixing tool having suitable blades fixed to a hub. A rotary drive shaft extends into the vessel and is coupled to the hub in such manner as to rotate the tool while enabling the tool selectively to be displaced axially on the shaft between an operative position in which the blades are in close proximity to the base wall of the vessel, and an inoperative position in which the blades are spaced sufficiently from the base wall to provide access for cleaning. Axial displacement of the tool is controlled through external actuation of a threaded lifting device provided within the hub and acting between the hub and shaft.
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