Patent ID: 6231048
Filing Date: 2001-05-15
Classification: F16J

Abstract:
In a mechanical seal having:a drive sleeve having an inner perimeter surface sealingly fit over an outer surface of a shaft;a gland plate extending circumferentially around said shaft and abutting against said outer surface around said shaft, wherein said gland plate acts as a mounting fixture for a plurality of elements extending from said gland plate to said drive sleeve, said elements acting as a boundary against leakage between said shaft and said gland plate;an o-ring sealing said elements within said mechanical seal;a plurality of spacers defined by areas between each of said elements;the improvement which comprises:a pusher ring holding said elements and said spacers against said o-ring, wherein said pusher ring is held in place by four cap screws, and wherein tightening of said cap screws allows said pusher ring to force said inner perimeter surface into sealing contact with said outer surface of said shaft without use of a snap ring.