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Title: Rotatable seal assembly

Abstract

An assembly is provided for rotatably supporting a rotor on a stator so that vacuum chambers in the rotor and stator remain in communication while the chambers are sealed from ambient air, which enables the use of a ball bearing or the like to support most of the weight of the rotor. The apparatus includes a seal device mounted on the rotor to rotate therewith, but shiftable in position on the rotor while being sealed to the rotor as by an O-ring. The seal device has a flat face that is biased towards a flat face on the stator, and pressurized air is pumped between the faces to prevent contact between them while spacing them a small distance apart to avoid the inflow of large amounts of air between the faces and into the vacuum chambers.

Inventors:
 [1];  [2]
  1. (Pleasanton, CA)
  2. (Livermore, CA)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
864420
Patent Number(s):
4361332
Assignee:
United States of America as represented by United States (Washington, DC) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
rotatable; seal; assembly; provided; rotatably; supporting; rotor; stator; vacuum; chambers; remain; communication; sealed; ambient; air; enables; ball; bearing; support; weight; apparatus; device; mounted; rotate; therewith; shiftable; position; o-ring; flat; biased; towards; pressurized; pumped; prevent; contact; spacing; distance; apart; avoid; inflow; amounts; rotatably supporting; pressurized air; seal assembly; ambient air; vacuum chamber; biased towards; prevent contact; seal device; vacuum chambers; distance apart; ball bearing; /277/

Citation Formats

Logan, Clinton M., and Garibaldi, Jack L. Rotatable seal assembly. United States: N. p., 1982. Web.
Logan, Clinton M., & Garibaldi, Jack L. Rotatable seal assembly. United States.
Logan, Clinton M., and Garibaldi, Jack L. Fri . "Rotatable seal assembly". United States. https://www.osti.gov/servlets/purl/864420.
@article{osti_864420,
title = {Rotatable seal assembly},
author = {Logan, Clinton M. and Garibaldi, Jack L.},
abstractNote = {An assembly is provided for rotatably supporting a rotor on a stator so that vacuum chambers in the rotor and stator remain in communication while the chambers are sealed from ambient air, which enables the use of a ball bearing or the like to support most of the weight of the rotor. The apparatus includes a seal device mounted on the rotor to rotate therewith, but shiftable in position on the rotor while being sealed to the rotor as by an O-ring. The seal device has a flat face that is biased towards a flat face on the stator, and pressurized air is pumped between the faces to prevent contact between them while spacing them a small distance apart to avoid the inflow of large amounts of air between the faces and into the vacuum chambers.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {1}
}

Patent:

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