Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
143 words
A method of cleaning and replenishing a hydraulic system having first and second ends, comprising the sequential steps of: opening the ends of the system to allow hydraulic fluid in the system to drain from the system; injecting an organic solvent into the system through one end of the system and out the other end of the system, said solvent being miscible with oil and water and vaporizable at low temperatures and at atmospheric pressure; terminating the flow of solvent and closing the first end of the system; applying a vacuum to the second end of the system to vaporize the solvent and remove the solvent vapor and air; injecting hydraulic fluid into the second end of the evacuated system to fill the system with hydraulic fluid while the vacuum is maintained on the system; and, closing the second end of the system.
Claim 2
Independent Claim
143 words
A method of cleaning and replenishing a hydraulic system having first and second ends, comprising the sequential steps of: opening the ends of the system to allow hydraulic fluid in the system to drain from the system; injecting an organic solvent into the system through one end of the system and out the other end of the system, said solvent being miscible with oil and water and vaporizable at low temperatures and at atmospheric pressure; terminating the flow of solvent and closing the first end of the system; applying a vacuum to the second end of the system to vaporize the solvent and remove the solvent vapor and air; injecting hydraulic fluid into the second end of the evacuated system to fill the system with hydraulic fluid while the vacuum is maintained on the system; and, closing the second end of the system.
Claim 3
Dependent Claim
34 words
The method of cleaning and replenishing a hydraulic system as defined in claim 1, wherein said hydraulic system is a vehicle brake system, said hydraulic fluid is brake fluid, and said solvent is dichlorodifluromethane.
Claim 4
Dependent Claim
28 words
The method of cleaning and replenishing a hydraulic system as defined in claim 2, wherein said organic solvent is injected into the system as a liquid under pressure.
Claim 5
Independent Claim
117 words
A method of cleaning and replenishing a vehicle hydraulic brake system having first and second ends, comprising the sequential steps of: opening the ends of the system to drain hydraulic brake fluid from the system; injecting dichlorodifluromethane solvent into the brake system through the first end of the system and out the second end of the system; closing the second end of the system; vaporizing the solvent; applying a vacuum to the first end of the system to remove air and solvent vapor from the system; injecting hydraulic brake fluid into the first end of the system to fill the system with hydraulic brake fluid while the vacuum is maintained on the system; and, sealing the system.
Claim 6
Independent Claim
117 words
A method of cleaning and replenishing a vehicle hydraulic brake system having first and second ends, comprising the sequential steps of: opening the ends of the system to drain hydraulic brake fluid from the system; injecting dichlorodifluromethane solvent into the brake system through the first end of the system and out the second end of the system; closing the second end of the system; vaporizing the solvent; applying a vacuum to the first end of the system to remove air and solvent vapor from the system; injecting hydraulic brake fluid into the first end of the system to fill the system with hydraulic brake fluid while the vacuum is maintained on the system; and, sealing the system.