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US 5,318,080 AGranted
Transmission fluid changer
OwnerJames P. Vikeninventor
Life of this patent
Estimating the term…
Abstract
Fluid changing in an automatic transmission by opening the cooler line and draining used fluid, at the flow of normal circulation, out of the cooler line from the transmission into a drain receptacle for receiving used fluid and simultaneously supplying fresh fluid, from a pressurized supply receptacle, into the cooler return line to the transmission at a similar controlled rate that is equal or greater than the rate of flow of the used fluid into the drain receptacle.
Claims13
In a fluid replacing apparatus for an automatic transmission an improvement having fluid circulation inlet and outlet ports comprising;
- a fluid receiver adapted to be connected to the fluid circulation output port on said automatic transmission;
- a source of fresh transmission fluid adapted to be connected to the fluid circulation inlet port on said automatic transmission so that fluid circulates therethrough;
- and
- means connected to said fluid receiver and said source of fresh fluid, for equalizing the fluid flow into said fluid receiver and out of said source of fluid.
1 more element
Dependencies are inferred from the claim text.