Pipes and tubular conduits – With pressure compensators – Variable capacity chambers
Patent
1982-09-27
1984-04-17
Shepperd, John W.
Pipes and tubular conduits
With pressure compensators
Variable capacity chambers
138104, 138 30, F16L 5504
Patent
active
044428669
ABSTRACT:
A separator is positioned to prevent pulsating fluid from mixing with working fluid or from contaminating dampening devices when dampening pulsations or eliminating cavitation. The separator includes a cylinder connected at one end to the source of pulsating fluid and the other to pressurized working fluid, such as is used in a pulsation dampeners or cavitation eliminators, with a sliding elastomeric piston positioned in the cylinder therebetween. A diaphragm is formed at the center of the piston. The diaphragm is protected by perforated cages on either side thereof and acts to transfer high frequency vibrations directly across the piston. The piston is free to slide upwardly and downwardly within the cylinder to transfer lower frequency pulsations. A lubrication grease fitting is provided adjacent one end of the cylinder for lubricating the piston when it is positively located against one of two opposite interior stops within the cylinder.
REFERENCES:
patent: 2290337 (1942-07-01), Knauth
patent: 2492014 (1949-12-01), Spalding et al.
patent: 2695037 (1954-11-01), McCuistion
patent: 2764997 (1956-10-01), McCuistion
patent: 3379216 (1968-04-01), Mercier
patent: 4186775 (1980-02-01), Muroi
patent: 4307753 (1981-12-01), Dryer
Brown Boniard I.
Shepperd John W.
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