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Patent applications and USPTO patent grants for St. Laurent, Jr.; Wilfred H..The latest application filed is for "rolling diaphragm vacuum control with check valve".
Patent | Date |
---|---|
Rolling diaphragm vacuum control with check valve Grant 4,466,455 - Athanassiu , et al. August 21, 1 | 1984-08-21 |
Rolling diaphragm vacuum control Grant 4,390,036 - Athanassiu , et al. June 28, 1 | 1983-06-28 |
Pneumatic positioner Grant 4,263,838 - St. Laurent, Jr. April 28, 1 | 1981-04-28 |
Improvements of sealed shafts Grant 4,253,675 - St. Laurent, Jr. March 3, 1 | 1981-03-03 |
Sealed shaft of reduced diameter Grant 4,244,589 - St. Laurent, Jr. January 13, 1 | 1981-01-13 |
Self-aligning shaft seal Grant 4,229,010 - St. Laurent, Jr. October 21, 1 | 1980-10-21 |
Pneumatic relay Grant 4,219,042 - St. Laurent, Jr. August 26, 1 | 1980-08-26 |
Sealed shaft Grant 4,208,060 - St. Laurent, Jr. June 17, 1 | 1980-06-17 |
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