Inventors:
Robert J. Bovio - Lowell MA
Renaldo Mercaldi - Beverly MA
Assignee:
GTE Sylvania Incorporated - Stamford CT
International Classification:
F16J 1534
Abstract:
A rotary seal device for pressurized gas and vacuum pumping systems comprising an annular member coaxially mounted on the end of a hollow rotary shaft and having a spring-loaded carbon face pressing against a ceramic disc secured in coaxial alignment with the end of a stationary pipe fitting within a housing member having a threaded end cap for adjusting the pressure between the carbon face and ceramic disc.