Agitating – Stirrer within stationary mixing chamber – Rotatable stirrer
Patent
1989-03-21
1989-11-28
Jenkins, Robert W.
Agitating
Stirrer within stationary mixing chamber
Rotatable stirrer
285401, 366250, 403349, B01F 716
Patent
active
048842451
ABSTRACT:
A mixer drive unit includes a motor provided with a housing, and a sleeve-like shroud projects outwardly to be positionable in abutting engagement with a top wall of a tank in surrounding relationship to the projecting end of a mixing shaft. The drive unit has a quick-connect drive coupling disposed within the shroud. The coupling includes a drive plate which has a pair of driving flanges projecting downwardly in cantilevered relationship, which driving flanges are spaced radially outwardly from and on substantially diametrically opposite sides of a driving axis. The driving flanges are positionable substantially on diametrically opposite sides of the mixing shaft when the latter is inserted into a pilot opening in the drive plate. The driving flanges define thereon, in the rotational direction, leading drive faces which abut projecting ends of a drive pin secured to the end of the mixing shaft. The driving flanges, adjacent the free ends thereof, have ramp-like projections which project outwardly in the driving direction so that rotation of the driving flanges causes these ramps to pass under the pin and hold the pin in a channel-like groove defined by the leading face of each driving flange.
REFERENCES:
patent: 3149888 (1964-09-01), Lennon
patent: 3166330 (1965-01-01), Boutros
patent: 3246882 (1966-04-01), Clough
patent: 3762690 (1973-10-01), Harrington
patent: 3815380 (1974-06-01), Esmay
patent: 3920227 (1975-11-01), Davis
patent: 4468358 (1984-08-01), Haegeman
patent: 4606648 (1986-08-01), Coyle et al.
patent: 4708370 (1987-11-01), Todd
patent: 4721003 (1988-01-01), Hutchings et al.
Gowin Robert
McIntosh George C.
Jenkins Robert W.
JWI, Incorporated
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