Fluid change system

Abstract

A fluid change apparatus consisting of two components. One component is associated with the engine and the other component is associated with a source of new fluid and a receptacle for old fluid. The present invention provides a fast connection between the two components that completely compartmentalizes the fluids.

1 . A fluid change apparatus for removing used fluid from an engine and inserting new fluid into the engine, comprising: 
 (a) a first portion adapted to be connected to the engine; and    (b) a second portion mating with the first portion and adapted to be connected to a source of new fluid and to a receptacle for old fluid.    
   
   
       2 . The fluid change apparatus of  claim 1 , wherein the first portion is adapted to be connected to the engine by a first connection to remove old fluid from the engine and by a second connection to insert new fluid into the engine.  
   
   
       3 . The apparatus of  claim 2 , wherein the second connection is a check valve  
   
   
       4 . The apparatus of  claim 2 , wherein the first connection and second connection further comprise hoses and couplers.  
   
   
       5 . The apparatus of  claim 2 , wherein the second portion is adapted to be connected to the receptacle for old fluid by a third connection to transfer old fluid to the receptacle and is adapted to be connected to the source of new fluid by a fourth connection to transfer new fluid from the source.  
   
   
       6 . The apparatus of  claim 4 , wherein the first connection is removably connected to the third connection and wherein the second connection is removably connected to the fourth connection.  
   
   
       7 . The apparatus of  claim 5 , wherein the removable connection between the first connection and third connection and between the second connection and fourth connection is made when the second portion mates with the first portion.  
   
   
       8 . The apparatus of  claim 4 , wherein the third connection and fourth connection further comprise hoses and couplers.  
   
   
       9 . The apparatus of  claim 1 , wherein the second portion further comprises a body, connectors within the body mating with the first portion, and a mechanism mating the second portion with the first portion.  
   
   
       10 . The apparatus of  claim 8 , further comprising a trigger activating the mechanism.  
   
   
       11 . The apparatus of  claim 10 , wherein the trigger is spring-loaded.  
   
   
       12 . The apparatus of  claim 1 , wherein the first portion is stationary and the second portion is mobile.  
   
   
       13 . The apparatus of  claim 1 , wherein the first portion is mobile and the second portion is stationary.  
   
   
       14 . A fluid change apparatus for removing used fluid from an engine and inserting new fluid into the engine, the engine having a new fluid port and an old fluid drain port, the apparatus comprising: 
 (a) a first portion connectable to the new fluid port and to the old fluid drain port by separate connections;    (b) a second portion removably connectable to the first portion and having connections to a source of new fluid and to a receptacle for old fluid; and    (c) a mechanism mating the first portion to the second portion and connecting the source of new fluid to the new fluid port and connecting the old fluid drain port to the receptacle for old fluid.    
   
   
       15 . The apparatus of  claim 14 , further comprising a trigger activating the mechanism.  
   
   
       16 . The apparatus of  claim 15 , wherein the trigger is spring-loaded.  
   
   
       17 . The apparatus of  claim 14 , wherein the first portion is stationary and the second portion is mobile.  
   
   
       18 . The apparatus of  claim 14 , wherein the first portion is mobile and the second portion is stationary.  
   
   
       19 . A fluid change apparatus for removing used fluid from an engine and inserting new fluid into the engine, the engine having a new fluid port and an old fluid drain port, comprising: 
 (a) an engine-mounted first portion connected to the new fluid port and to the old fluid drain port by separate connections;    (b) a second portion connected to a source of new fluid and to an old fluid receptacle and being removably connectable to the first portion, thereby connecting the new fluid port to the source of new fluid and connecting the old fluid drain port to the old fluid receptacle; and    (c) a spring-loaded trigger within the second portion making and breaking a connection between the source of new fluid and the new fluid port and simultaneously making a connection between the old fluid drain port and the old fluid receptacle.    
   
   
       20 . The apparatus of  claim 19 , further comprising a first pump pumping old fluid from the engine to the old fluid receptacle and a second pump pumping new fluid from the source of new fluid to the engine.  
   
   
       21 . The apparatus of  claim 19 , wherein the second portion is insertable into the first portion and wherein inserting the second portion into the first portion simultaneously connects the engine's old fluid drain port to the old fluid receptacle and connects the engine's new fluid port to the source of new fluid.