A method for restoring the registry of opposed shafts that carry meshing pump teeth inside a polymer pump that contains polymer without removing polymer from within the pump, the method using an asymmetric pattern of apertures in the shaft ends and a template having a pattern of holes that matches the pattern of apertures, and dowels that closely fit the holes and apertures.
David T. Moldt - Lake Jackson TX, US James E. Taylor - Brazoria TX, US Sina Saylany - The Woodlands TX, US
International Classification:
F16J 15/16 F16J 15/26 F16J 15/54
US Classification:
277500, 277512
Abstract:
A rotary seal housing having opposing ends, a first fluid conducting slot at one of the opposing ends, a pair of spaced apart fluid conducting slots at the other opposing end, and sets of apertures connecting the first fluid conducting slot with the pair of fluid conducting slots, the housing having helical push back grooves that are arcuate in cross-section.
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