Hygrometric indicator for desiccants

Claim 1

DESICCATING MEANS FOR USE IN REFRIGERATION SYSTEMS, COMPRISING A CONTAINER ADAPTED TO BE INSTALLED IN A REFRIGERATION LINE, SAID CONTAINER HAVING TWO OPPOSITE PORTS ONE PORT ADAPTED TO SERVE AS THE INLET PORT FOR A REFRIGERANT PASSING THROUGH SAID LINE, THE OPPOSITE PORT ADAPTED TO SERVE AS AN OUTLET PORT FOR SUCH REFRIGERANT, A DESICCANT CONTAINED WITHIN SAID CONTAINER, AND A PAIR OF CLOSURE MEMBERS CLOSING SAID PORTS AND SEALING SAID DESICCANT WITHIN SAID CONTAINER AND THEREBY PREVENTING MOISTURE FROM ENTERING THE CONTAINER AND HYDRATING THE DESICCANT, AT LEAST ONE OF SAID CLOSURE MEMBERS BEING HOLLOW AND CONTAINING A HYGROMETRIC INDICATOR EXPOSED TO SAID DESICCANT AND SENSITIVE TO ANY MOISTURE THAT MAY LEAK INTO THE CONTAINER AND HYDRATE THE DESICCANT, SAID CLOSURE MEMBER HAVING A TRANSPARENT PORTION THROUGH WHICH THE HYGROMETRIC INDICATOR MAY BE VIEWED FROM THE OUTSIDE TO DETERMINE WHETHER MOISTURE HAS ENTERED THE CONTAINER, AND A BOX HAVING A PAIR OF OPENINGS FORMED THEREIN AT OPPOSITE ENDS THEREOF, SAID CONTAINER BEING DISPOSED IN SAID BOX, AND EACH OF SAID CLOSURE MEMBERS PROJECTING OUTWARDLY FROM A RESPECTIVE OPENING IN SAID BOX, THEREBY PERMITTING VISUAL INSPECTION OF SAID HYGROMETRIC INDICATOR WITHOUT OPENING SAID BOX.