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US 6,742,535 B1Granted
Method and apparatus for servicing a fluid system
AssigneePrime Solutions LLC
InventorsSteven M. Knowles, John R. Burke
Life of this patent
Estimating the term…
Abstract
An apparatus and method of servicing fluid systems by draining, filling, or leak testing the fluid system can employ a pressure-reducing source to perform the desired service. The fluid system can be an engine cooling system, or other fluid system.
Claims16
A method for filling a fluid system comprising:
- applying a reduced pressure to a reduced pressure port of a service apparatus to withdraw fluid from a fluid source, through the apparatus, and into the fluid system, the apparatus being sealably connected to the fluid source by a sleeve made of resilient material wherein the service apparatus includes a valve proximate to a channel that closes the channel when the fluid enters the reduced pressure port.
A method for servicing a fluid system comprising:
- draining a fluid from the fluid system with a drainage wand;
- sealing a service apparatus onto an orifice of the fluid system, the service apparatus comprising:
- a body including a first lower port fluidly connected to a first upper port by a first channel, a second lower port fluidly connected to a second upper port by a second channel, and;
- and
- a sealing member on the body for forming a seal with the orifice;
- filling the system with a fluid from a fluid source fluidly connected to the first upper port with reduced pressure applied to the second upper port;
- and
- closing a valve in the service apparatus when the fluid enters the second lower port.
5 more elements
A method for filling a cooling system comprising:
- applying a reduced pressure to a service apparatus to withdraw fluid from a fluid source fluidly connected to a service apparatus, through the apparatus, and into the cooling system, the service apparatus forming a seal with the cooling system and
- closing a float valve in the service apparatus when the fluid enters the service apparatus.
A method for filling a fluid system comprising:
- applying a reduced pressure to a service apparatus to withdraw fluid from a fluid source, through the apparatus, and into the fluid system, the apparatus being sealably connected to the fluid source by a sleeve made of resilient material wherein the service apparatus includes a valve proximate to a channel that stops fluid flow in the channel when the fluid enters the channel,
- wherein the valve is a float valve.
A method for filling a fluid system comprising:
- applying a reduced pressure to a service apparatus to withdraw fluid from a fluid source, through the apparatus, and into the fluid system, the apparatus being sealably connected to the fluid source by a sleeve made of resilient material wherein the service apparatus includes a valve proximate to a channel that stops fluid flow in the channel when the fluid enters the channel,
- wherein the apparatus further comprises a second lower port fluidly connected to a second upper port by a second channel.
Dependencies are inferred from the claim text.