Filter-drier combination

Claim 1

A FILTER-DRIER COMBINATION FOR CONNECTION INTO LINES CONVEYING FLUIDS COMPRISING A HOUSING FOR FLOW OF FLUID THERETHROUGH, SAID HOUSING HAVING AN INLET FOR FLOW OF FLUID THEREINTO AND AN OUTLET FOR FLOW OF FLUID THEREFROM, A SUBSTANTIALLY HEMISPHERCALLY SHAPED SCREEN HAVING A NOSE AND A RADIALLY DISPOSED SUBSTANTIALLY FLAT PERIPHERAL PORTION, SAID SCREEN BEING DISPOSED SUBSTANTIALLY TRANSVERSELY OF THE LONGITUDINAL AXIS OF SAID HOUSING AND TRANSVERSELY OF FLUID FLOW THERETHROUGH, EXTENDING FROM THE LONGITUDINAL AXIS RADIALLY TO AND BEING IN ENGAGEMENT WITH AN INSIDE WALL OF SAID HOUSING, AND BEING POSITIONED WITH SAID NOSE REARWARDLY OF SAID INLET AND POINTED TOWARD THAT PART OF SAID INLET, A FILTER LAYER OF FIBERS DISPOSED SUBSTANTIALLY TRANSVERSELY OF THE LONGITUDINAL AXIS OF SAID HOUSING AND SUBSTANTIALLY TRANSVERSELY OF SAID FLOW OF FLUID THERETHROUGH AND EXTENDING FROM SAID LONGITUDINAL AXIS RADIALLY TO AND INTO ENGAGEMENT WITH AN INSIDE WALL OF SAID HOUSING, SAID FILTER LAYER BEING ON THE OUTLET SIDE OF SAID SCREEN, INCLUDING A PORTION ADAPTED TO BE SUBSTANTIALLY HEMISPHERICALLY SHAPED TO SUBSTANTIALLY CONFORM TO SAID SCREEN AND INCLUDING A CYLINDRICAL PORTION WHICH FORMS A PERIPHERAL PART OF SAID FILTER MEMBER AND WHICH RUNS ALONG A PART OF SAID INSIDE WALL OF SAID HOUSING, SPRING MEANS IN ENGAGEMENT WITH SAID CYLINDRICAL PORTION TO URGE AND MAINTAIN SAID PORTION IN CONTACT WITH AND COMPLETELY AROUND THE INSIDE WALL OF SAID HOUSING, SAID SPRING MEANS ACTING RADIALLY UPON SAID CYLINDRICAL PORTION, A WELL ON THE OUTLET SIDE OF SAID SCREEN FOR COLLECTION OF FILTERED FOREIGN PARTICLES, SAID WELL BEING FORMED BY SAID RADIALLY DISPOSED SUBSTANTIALLY FLAT PERIPHERAL PORTION, BY A PART OF SAID INSIDE WALL OF SAID HOUSING AND BY A PORTION OF SAID FILTER LAYER EXTENDING BETWEEN THE PERIPHERAL PART OF SAID HEMISPHERICAL PORTION AND SAID CYLINDRICAL PORTION, SAID WELL BEING INTERPOSED BETWEEN SAID SCREEN AND SAID SPRING MEANS, A SUBSTANTIALLY FLAT MEMBER PREVIOUS TO PASSAGE OF FLUID THERETHROUGH DISPOSED ON THE OUTLET SIDE OF SAID FILTER LAYER AND TRANSVERSELY OF SAID LONGITUDINAL AXIS OF SAID HOUSING, SAID FLAT MEMBER EXTENDING TO AND BEING IN ENGAGEMENT WITH THE INSIDE WALL OF SAID HOUSING, SAID FILTER LAYER AND SAID FLAT MEMBER FORMING A CHAMBER, A DESICCANT MATERIAL IN SAID CHAMBER.