Mechanical seal with bellows seating alignment

Details Mechanical seal with bellows seating alignment Mechanical seal with bellows seating alignment

2005-08-10

2008-03-18

Nguyen, Ninh H. (Department: 3745)

Rotary kinetic fluid motors or pumps

Bearing, seal, or liner between runner portion and static part

Resilient, flexible, or resiliently biased

C415S231000, C277S352000, C277S379000, C277S391000, C277S636000

Reexamination Certificate

active

07344356

ABSTRACT:
A mechanical seal having a stationary ring and a rotating portion. The rotating portion includes a runner adjacent the stationary ring, an elastomer bellows adjacent the runner, a spring retainer plate and a spacer positioned between the elastomer bellows and the spring retainer plate. The spacer sets and maintains the elastomer bellows in proper position adjacent the runner.

REFERENCES:
patent: 2115346 (1938-04-01), Summers
patent: 4095808 (1978-06-01), Glasson
patent: 4342538 (1982-08-01), Wolford et al.
patent: 5551708 (1996-09-01), Vesey et al.
patent: 6568686 (2003-05-01), Hadley
patent: 6805357 (2004-10-01), Dahlheimer

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