Title: Sealing assembly for blending apparatus

Abstract: A sealing assembly for a vacuum connection to a mixing apparatus so that the contents of the mixing apparatus are held under a vacuum during blending and the introduction of particulate matter is substantially reduced. The sealing assembly for the vacuum conduit is provided by means of a separate housing. A vacuum conduit is integrally attached to and rotates with the blender and an end portion of the conduit is sealed by means of bushings and packing in the assembly housing. The sealing assembly can be easily disconnected for maintenance purposes.

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Inventors: Martin, George J. (Waukegan, IL, US)

Application Number: 005105
Filing Date: 1979-01-22
Publication_date: 1980-04-22
Assignee: Abbott Laboratories (North Chicago, IL)
Primary Class(es): 366/139 277/512, 277/530, 277/913, 366/220
Other Classes:
US Patent Ref:

2486939	Nov, 1949	Freund	277/105.
3003797	Oct, 1961	Gage	277/124.
3129960	Apr, 1964	Schrodt	277/71.
3313550	Apr, 1967	Culman	277/4.
3472522	Oct, 1969	Winfrey	277/105.
3521863	Jul, 1970	Graham	366/139.
3652098	Mar, 1972	Kawazu et al.	277/105.
3834715	Sep, 1974	Butler	277/59.

Other Refs: 50158445508

Oct, 1939	FR
Apr, 1936	GB

Primary Examiner: Ward, Jr., Robert S.
Assistant Examiner:
Attorney: Niblack; Robert L., Hamilton; Neil E.