Figure

Claim 1

A SEATING CUP FOR USE IN DEEP WELL PUMPS AND THE LIKE FOR RETAINING THE PUMP IN FIXED POSITION RELATIVE TO A SEATING NIPPLE AND FOR PREVENTING LEAKAGE OF FLUID DOWNWARDLY AROUND THE PUMP COMPRISING: (A) AN ANNULAR METALLIC SLEEVE HAVING UPPER AND LOWER ENDS AND OF A SIZE TO SLIDINGLY FIT AROUND THE PUMP; AND (B) A RESILIENT ANNULUS HAVING UPPER AND LOWER ENDS AND SURROUNDING THE EXTERNAL PERIPHERY OF SAID METALLIC SLEEVE TO PRECLUDE THE ENTRANCE OF FLUID BEMETALLIC SLEEVE TO PRECLUDE THE ENTRANCE OF FLUID BETWEEN SAID SLEEVE AND SAID ANNULUS, SAID ANNULUS HAVING AN INNER ANNULAR PORTION ADJACENT SAID SLEEVE AND TERMINATING IN FLAT END FACES EXTENDING NORMAL TO SAID SLEEVE, AND SAID ANNULUS FURTHER HAVING AN OUTER ANNULAR PORTION FORMED INTEGRALLY WITH SAID INNER ANNULAR PORTION AT ITS LOWER END AND RADIALLY SPACED FROM SAID INNER ANNULAR PORTION AT ITS UPPER END TO DEFINE THEREWITH A GENERALLY V-SHAPED, AXIALLY EXTENDING RECESS IN SAID RESILIENT ANNULUS, SAID OUTER ANNULAR PORTION HAVING A DOWNWARDLY AND OUTWARDLY TAPERED UPPER END AND AN UPWARDLY AND OUTWARDLY TAPERED LOWER END, THE TAPERED UPPER END OF SAID OUTER ANNULAR PORTION BEING SPACED AXIALLY DOWNWARDLY FROM THE FLAT UPPER END OF SAID INNER ANNULAR PORTION WHEREBY A PLURALITY OF SAID SEATING CUPS MAY BE AXIALLY ALIGNED ON SAID PUMP IN ABUTTING CONTACT WITHOUT OBSTRUCTING THE RECESS IN THE RESILIENT ANNULUS OF EACH OF SAID CUPS AND SAID RESILIENT ANNULUS HAVING A UNIFORM OUTER DIAMETER BETWEEN THE TAPERED ENDS OF THE OUTER ANNULAR PORTION.