Hygenienic shaft seal for a food processing vat

Details Hygenienic shaft seal for a food processing vat Hygenienic shaft seal for a food processing vat

1988-11-09

1989-08-29

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 15, 277 75, 277 84, 277152, F16J 1532, F16J 1534

Patent

active

048610445

ABSTRACT:
A hygienic shaft seal for a food processing vat is comprised of an annular seal adapted to be inserted into an aperture in a wall of the vat having a shaft extending therethrough for surrounding the shaft and preventing contamination of the food product contents of the vat, yet still allowing for contaminants to be easily flushed from the seal. The seal is secured such that the seal is stationary with respect to the rotation of the shaft and includes an outer lip means for abutably engaging a portion of the shaft disposed in the aperture and an inner lip means for abutably engaging an annular flange on the rotatable shaft adjacent to the interior side of the wall. The seal, the inner lip means and the outer lip means define an annular channel around the shaft. An access port means is provided for accessing the annular channel from the exterior of the vat whereby a cleaning solution may be introduced into the annular channel under pressure to force the inner lip means away from the annular flange and flush any contaminants or residual food product present in the annular channel into the interior of the vat. The pressure of the cleaning fluid also forces the outer lip means to seal more tightly against the portion of the shaft disposed in the aperture to prevent the loss of the cleaning solution along the shaft to the exterior of the vat.

REFERENCES:
patent: 2572422 (1951-10-01), Agger
patent: 2824759 (1958-02-01), Tracy
patent: 4136886 (1979-01-01), Sjoholm et al.

Affiliated with

Also associated with

Rating

Hygenienic shaft seal for a food processing vat does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hygenienic shaft seal for a food processing vat, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hygenienic shaft seal for a food processing vat will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2233149