Gate valve having fluid pressure seal and limit stop means
First Claim
1. A HIGH VACUUM GATE VALVE FOR USE IN A PARTICLE ACCELERATOR VACUUM SYSTEM COMPRISING IN COMBINATION A METAL HOUSING HAVING TWO APERTURED WALLS, A METAL GATE, MEANS FOR ADVANCING SAID GATE INTO AND OUT OF A POSITION INTERVENING BETWEEN THE APERTURES IN SAID WALLS, GATE-STOP MEANS SUPPORTED SO AS TO ABUT THE ADVANCE EDGE OF SADI GATE AT THREE PLACES WHEN SAID GATE IS IN SAID INTERVENING POSITION AND THEREBY PREVENT FURTHER ADVANCE MOVEMENT OF SAID GATE, TWO OF SAID PLACES OF ABUTMENT ON SAID ADVANCE EDGE COMPRISING TWO LATERAL SURFACES SO DISPOSED AS TO PREVENT LATERAL MOVEMENT OF SAID GATE, SAID THIRD PLACE OF ABUTMENT BEING SO DISPOSED AS TO PREVENT DOWNWARD MOVEMENT ONLY OF SAID GATE, A KNIFE-EDGE MOUNTED ON ONE OF SAID WALLS ABOUT THE APERTURE THEREIN, A METAL CHAMBER HAVING FLEXIBLE BOUNDARIES MOUNTED ON THE INTERIOR OF THE OTHER WALL SO THAT SAID CHAMBER LIES ABOUT THE APERTURE THEREIN, AND MEANS FOR INTRODUCING A FLUID UNDER PRESSURE INTO SAID CHAMBER TO EFFECT EXPANSION THEREOF AND CAUSE SAID GATE TO BE PRESSED AGAINST SAID KNIFEEDGE.
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Accused Products
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1 Claim
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1. A HIGH VACUUM GATE VALVE FOR USE IN A PARTICLE ACCELERATOR VACUUM SYSTEM COMPRISING IN COMBINATION A METAL HOUSING HAVING TWO APERTURED WALLS, A METAL GATE, MEANS FOR ADVANCING SAID GATE INTO AND OUT OF A POSITION INTERVENING BETWEEN THE APERTURES IN SAID WALLS, GATE-STOP MEANS SUPPORTED SO AS TO ABUT THE ADVANCE EDGE OF SADI GATE AT THREE PLACES WHEN SAID GATE IS IN SAID INTERVENING POSITION AND THEREBY PREVENT FURTHER ADVANCE MOVEMENT OF SAID GATE, TWO OF SAID PLACES OF ABUTMENT ON SAID ADVANCE EDGE COMPRISING TWO LATERAL SURFACES SO DISPOSED AS TO PREVENT LATERAL MOVEMENT OF SAID GATE, SAID THIRD PLACE OF ABUTMENT BEING SO DISPOSED AS TO PREVENT DOWNWARD MOVEMENT ONLY OF SAID GATE, A KNIFE-EDGE MOUNTED ON ONE OF SAID WALLS ABOUT THE APERTURE THEREIN, A METAL CHAMBER HAVING FLEXIBLE BOUNDARIES MOUNTED ON THE INTERIOR OF THE OTHER WALL SO THAT SAID CHAMBER LIES ABOUT THE APERTURE THEREIN, AND MEANS FOR INTRODUCING A FLUID UNDER PRESSURE INTO SAID CHAMBER TO EFFECT EXPANSION THEREOF AND CAUSE SAID GATE TO BE PRESSED AGAINST SAID KNIFEEDGE.
Specification
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Current AssigneeVon Zweck Tiemo
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Original AssigneeVon Zweck Tiemo
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InventorsVON ZWECK TIEMO
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Application NumberUS04/121,635Time in Patent Office1,149 DaysField of SearchUS Class Current251/172CPC Class CodesF16K 3/207 by means of hydraulic forcesF16K 51/02 specially adapted for high-...
