Vacuum breaking device
First Claim
1. A VACUUM BREAKING VALVE ASSEMBLY COMPRISING A FIRST BODY PORTION SHAPED TO PROVIDE A FLUID COMMUNICATABLE CONDUIT INTERMEDIATE A FLUID INLET OPENING NORMALLY SUBJECT TO FLUID PRESSURES IN EXCESS OF ATMOSPHERIC PRESSURE ALONG ITS ENTIRE LENGTH AND A FLUID OUTLET OPENING, AN INTEGRAL SECOND BODY PORTION SHAPED TO PROVIDE A VALVE CHAMBER HAVING ONE END THEREOF DISPOSED IN CONSTANT FLUID COMMUNICATION WITH SAID CONDUIT AND A SECOND END OPEN TO THE ATMOSPHERE, A BUSHING MEMBER REMOVABLY MOUNTED IN THE SECOND END OF SAID CHAMBER DEFINING AN AXIAL BORE, A VALVE MEMBER POSITIONED WITHIN SAID CHAMBER NORMALLY DISPOSED IN SEALING RELATION WITH THE BORE DEFINING PERIPHERAL EDGE OF SAID BUSHING AGAINST THE ACTION OF ATMOSPHERIC PRESSURE BY THE FLUID PRESSURE WITHIN SAID CONDUIT TO CLOSE THE END OF SAID VALVE CHAMBER OPEN TO THE ATMOSPHERE AND AN AUXIALIARY SPRING MEMBER DISPOSED WITHIN SAID VALVE CHAMBER NORMALLY BIASING SAID VALVE MEMBER INTO SEALING RELATIONSHIP WITH THE BORE DEFINING EDGE OF SAID BUSHING AGAINST ATMOSPHERIC PRESSURE, SAID VALVE MEMBER BEING DISPLACEABLE OUT OF SEALING RELATIONSHIP WITH THE BORE DEFINING PERIPHERAL EDGE OF SAID BUSHING MEMBER TO PERMIT AIR FLOW THEREPAST IN RESPONSE TO A PREDETERMINED PRESSURE IN SAID CONDUIT LESS THAN THAT OF ATMOSPHERIC PRESSURE.
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Accused Products
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1 Claim
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1. A VACUUM BREAKING VALVE ASSEMBLY COMPRISING A FIRST BODY PORTION SHAPED TO PROVIDE A FLUID COMMUNICATABLE CONDUIT INTERMEDIATE A FLUID INLET OPENING NORMALLY SUBJECT TO FLUID PRESSURES IN EXCESS OF ATMOSPHERIC PRESSURE ALONG ITS ENTIRE LENGTH AND A FLUID OUTLET OPENING, AN INTEGRAL SECOND BODY PORTION SHAPED TO PROVIDE A VALVE CHAMBER HAVING ONE END THEREOF DISPOSED IN CONSTANT FLUID COMMUNICATION WITH SAID CONDUIT AND A SECOND END OPEN TO THE ATMOSPHERE, A BUSHING MEMBER REMOVABLY MOUNTED IN THE SECOND END OF SAID CHAMBER DEFINING AN AXIAL BORE, A VALVE MEMBER POSITIONED WITHIN SAID CHAMBER NORMALLY DISPOSED IN SEALING RELATION WITH THE BORE DEFINING PERIPHERAL EDGE OF SAID BUSHING AGAINST THE ACTION OF ATMOSPHERIC PRESSURE BY THE FLUID PRESSURE WITHIN SAID CONDUIT TO CLOSE THE END OF SAID VALVE CHAMBER OPEN TO THE ATMOSPHERE AND AN AUXIALIARY SPRING MEMBER DISPOSED WITHIN SAID VALVE CHAMBER NORMALLY BIASING SAID VALVE MEMBER INTO SEALING RELATIONSHIP WITH THE BORE DEFINING EDGE OF SAID BUSHING AGAINST ATMOSPHERIC PRESSURE, SAID VALVE MEMBER BEING DISPLACEABLE OUT OF SEALING RELATIONSHIP WITH THE BORE DEFINING PERIPHERAL EDGE OF SAID BUSHING MEMBER TO PERMIT AIR FLOW THEREPAST IN RESPONSE TO A PREDETERMINED PRESSURE IN SAID CONDUIT LESS THAN THAT OF ATMOSPHERIC PRESSURE.
Specification
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- Resources
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Current AssigneeHarold H. Pelzer
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Original AssigneeHarold H. Pelzer
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InventorsPelzer, Harold H.
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Application NumberUS04/068,984Time in Patent Office1,380 DaysField of SearchUS Class Current137/217CPC Class CodesE03C 1/108 having an aerating valveY10T 137/3294 ValvedY10T 137/7897 Vacuum relief typeY10T 137/7938 Guide means integral and co...
