Readily attachable water filter with cutoff valve

• US 3,926,815 A
• Filed: 02/19/1975
• Issued: 12/16/1975
• Est. Priority Date: 10/01/1973
• Status: Expired due to Term

• Current Assignee: Raytek Corporation (Fortive Corp.)
• Original Assignee: Robert M. Mcclory
• Inventors: McClory, Robert M.
• Primary Examiner(s): Wyse, Thomas G.
• Assistant Examiner(s): Spitzer, Robert H.
• Application Number:
  US05/550,999
• Time in Patent Office: 300 Days
• Field of Search: 137/625.22,625.46,625.47 210/133,135,137,278,288,418,424,440,443,444 251/309 285/373,419
• US Class Current: 210/424
• CPC Class Codes: B01D 35/043 Reversible faucet filters
• CPC Class Codes: Y10T 137/86646 Plug type

Abstract

A water filter unit for rapid installation in an existing water supply pipe. The unit includes a filter mounting block having internal conduits for directing water from a manifold on one face of the block through a filter housing containing a filter cartridge mounted on the opposite face of the block. Severed ends of the existing water pipe are brought into abutting relationship with the manifold and sealed thereto by a suitable cover. The filter mounting block includes a valve for shutting off the internal conduits so that the filter housing may be removed to enable filter cartridge replacement. Sealing means are provided for adapting the unit to different pipe sizes.

Claims

1. A FLUID FILTERING SYSTEM COMPRISING:

A FILTER HOUSING INCLUDING A FILTER MEANS, A MOUNTING BLOCK COUPLED TO SAID FILTER HOUSING, SAID MOUNTING BLOCK INCLUDING CONDUIT MEANS FOR DIRECTING SUPPLY FLUID TO SAID FILTER MEANS AND FOR DIRECTING FILTERED FLUID FROM SAID FILTER MEANS, ELONGATE TROUGH MEANS DISPOSED ON SAID MOUNTING BLOCK, SAID TROUGH MEANS BEING GENERALLY SEMI-CIRCULAR IN CROSSSECTION, GENERALLY TUBULAR SUPPLY PIPE SEALING MEANS DISPOSED AT ONE END OF SAID TROUGH MEANS, GENERALLY TUBULAR FILTERED FLUID EXHAUST PIPE SEALING MEANS DISPOSED AT THE OPPOSITE END OF SAID TROUGH MEANS, MANIFOLD MEANS DISPOSED INTERMEDIATE SAID PIPE SEALING MEANS, SAID MANIFOLD MEANS INCLUDING AN INLET COUPLING SAID SUPPLY PIPE SEALING MEANS AND SAID SUPPLY FLUID CONDUIT MEANS OF SAID MOUNTING BLOCK AND AN OUTLET COUPLING SAID EXHAUST PIPE SEALING MEANS AND SAID FILTERED FLUID CONDUIT MEANS OF SAID MOUNTING BLOCK, MEANS WITHIN SAID MANIFOLD MEANS FOR PREVENTING FLUID FLOW FROM SAID MAINFOLD INLET TO SAID MANIFOLD OUTLET OTHER THAN THROUGH SAID CONDUIT MEANS, AND COVER MEANS FOR SAID TROUGH MEANS WHICH WHEN ATTACHED TO SAID TROUGH MEANS FORMS A LEAKPROOF SEAL AROUND SAID SUPPLY AND EXHAUST PIPE SEALING MEANS AND SAID MANIFOLD MEANS.

2. The invention set forth in claim 1 wherein said supply pipe and exhaust pipe sealing means comprise deformable sealing means adapted for surrounding adjacent ends of fluid supply and fluid exhaust pipe means, the outer surface of said sealing means conforming to the surfaces of said trough means and said cover means whereby said sealing means is subject to compressive deformation by said cover means and said trough means for forming said leakproof seal around supply and exhaust pipe means received therein.

3. The invention set forth in claim 1 and including valve means within said body means and coupled to both said conduit means for selectively permitting fluid flow from said manifold inlet to said manifold outlet other then through said filter means.

4. The invention set forth in claim 3 wherein said valve means is adapted for selectively preventing fluid flow from said manifold inlet to either said filter means or said manifold outlet.

5. A fluid filter assembly for installation between substantially coaxial ends of spaced apart fluid conducting pipe means comprising:

a. body means having a bore therein, b. clamping means constructed and arranged for engaging a first external portion of said body to define an elongate space between said clamping means and said body means, c. means within said space for partitioning said space into fluid inlet and outlet cavities and for connecting said cavities to the interior of said body means, d. a chamber connected to a second external portion of said body means accommodating a fluid filter medium, said chamber having an inlet and an outlet communicating with the interior of said body means, e. conduit means within said body means for enabling fluid communication between said inlet cavity and said chamber inlet and between said chamber outlet and said outlet cavity; and

f. valve means rotatable in said bore of said body means and connected to said conduit means for selectively permitting fluid communication from said inlet cavity to said outlet cavity other than through said chamber and for selectively preventing fluid communication from said inlet cavity to either of said chamber inlet or said outlet cavity, conduits coupling each of said inlet and outlet cavities and said chamber inlet and outlet to said bore, and said valve including a member rotatable in said bore having passageways which are rotatable therewith to establish registry between selected ones of said conduit means, said valve member comprising axially spaced apart substantially cylindrical portions and a web means connecting said portions, said web means having a width less then the diameter of said portions and a height substantially equal to the diameter of said portions.