1975-05-22
1976-04-20
Wood, Jr., M. H.
Cutlery
F16C 124
Patent
active
039514781
ABSTRACT:
A rotating vacuum shaft assembly includes a housing, a hollow shaft positioned in an opening in the housing and at least one seal made of a fluorocarbon polymer material disposed in the region around the shaft to permit a vacuum to be drawn through the shaft while it is rotated. The seal has deformable ribs which contact the surface of the shaft and the internal walls of the housing, the ribs deforming when a pressure difference exists across the seal thereby enhancing the quality of the seal.
REFERENCES:
patent: 2518338 (1950-08-01), Lampe
patent: 2713522 (1955-07-01), Petch
patent: 2776173 (1957-01-01), Rudy
patent: 3062555 (1962-11-01), Britton
patent: 3125126 (1964-03-01), Engels
patent: 3168320 (1965-02-01), Sneed
patent: 3220756 (1965-11-01), Templeton
patent: 3400988 (1968-09-01), Hudson et al.
Oberhauser Peter
Olsen Harry G.
Church Gene A.
GTE Laboratories Incorporated
Hart Leslie J.
Kriegsman Irving M.
Wood, Jr. M. H.
LandOfFree
Vacuum assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Vacuum assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vacuum assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1582664