Reconditioning of phosphate ester hydraulic control fluids
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 24, 1981
Grant Date -
N/A
app pub date -
Feb 13, 1980
filing date -
Feb 13, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for recovering or maintaining phosphate ester type hydraulic fluids in serviceable condition which comprises sequentially filtering the fluid through at least a coalescer type filter and a mole-sieve type filter, preferably in conjunction with an activated charcoal powder filter and a small pore particle filter. In maintaining a hydraulic system in service, a small quantity of the hydraulic fluid is continually circulated from a reservoir through the filters and returned to the reservoir.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully