Premark Feg L.l.c.

Premark Peg L.l.c.

John E Brinkman

A mixing machine includes a head extending over a bowl receiving location. The head includes a shaft receiving opening extending upwardly therein and a rotatable mixing shaft having a lower portion extending below the head and an upper portion within the shaft receiving opening. An upwardly facing bearing shoulder is within the shaft receiving opening. An upper bearing member is disposed within the shaft receiving opening and about the mixing shaft. The upper bearing member is supported by the upwardly facing bearing shoulder. A gear system is in the head for effecting planetary movement of the mixing shaft. The gear system includes a gear member disposed about an upper end of the mixing shaft and linked to the upper end of the mixing shaft for effecting rotation of the mixing shaft. The gear member is supported by an upper side of the upper bearing member and the shaft is supported by the gear member. An upper seal is located at least partially in the shaft receiving opening and positioned above the upper bearing member. The upper seal includes a radially inner lip that is biased against an outer surface of the gear member.

Mixing machine and associated sealing arrangement for bearings

A rotary clamp mechanism for coupling a mixing bowl to an arcuate arm of a mixer housing that continuously prohibits the build up of air borne food particles and fluids between the mating circumferential surfaces between the clamp shaft and cylindrical bore. The clamp includes a clamp shaft adapted to be mounted for rotation in a bore extending through a bowl-support arm of a mixer housing, a head positioned on the longitudinal upper end of the clamp shaft, and a jaw projection extending radially from the head, where the jaw has a lower clamping surface adapt to engage a top surface of the projection extending from the mixing bowl upon rotation of the clamp shaft. The clamp shaft includes a channel for providing fluid communication between the circumferential surface of the shaft facing the bore and the lower end surface of the shaft facing below the bore. This channel facilitates drainage of fluids entrained between the circumferential surface of the clamp shaft and the inner circumferential surface of the bore. The clamp shaft also includes an annular depression milled into the surface of the shaft that faces the bore. This annular depression substantially reduces the surface area contacts between the surface of the clamp shaft and the inner surface of the bore.

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Tipp City, OH, United States of America

John E Brinkman