Oil and gasoline pump and mixing apparatus

Abstract

A metering and mixing mechanism including a housing secured to a location associated with a first fluid holding container. A volume of a second fluid is held within a reservoir incorporated into the housing. A first piston assembly is selectively communicated with the interior volume of fluid held in the container, whereas a second piston assembly communicates with a second volume reservoir internally held within the housing. The first and second piston assemblies are cooperatively actuated to withdraw metered volumes of the first and second fluids, e.g. gas and oil, and to admix said fluids into a common mixing chamber associated with the housing for distribution through an exit spout extending therefrom.

1 . A handheld tool for concurrently withdrawing and admixing first and second fluids, comprising: 
 a body incorporating at least one piston pump;    a first fluid withdrawal line extending from said pump and communicating with a reservoir containing a volume of the first fluid;    a second fluid withdrawal line extending from said pump and communicating with a second reservoir containing a volume of the second fluid;    a discharge line in fluidic communication with said pump and through which an admixture of said first and second fluids is fed for communication to a remote receptacle.    
   
   
       2 . The tool as described in  claim 1 , said body further comprising primary and secondary pumps.  
   
   
       3 . The tool as described in  claim 2 , said primary pump operatively withdrawing fluid from a gasoline reservoir.  
   
   
       4 . The tool as described in  claim 2 , said secondary pump operatively withdrawing fluid from an oil reservoir.  
   
   
       5 . The tool as described in  claim 4 , said oil reservoir being integrally defined upon said pump.  
   
   
       6 . The tool as described in  claim 1 , further comprising an adjustable fluid metering wheel in operative communication with at least one of said first and second fluid withdrawal lines.  
   
   
       7 . The tool as described in  claim 6 , said metering wheel further comprising a primary cam associated with said first withdrawal line and a secondary cam associated with said second withdrawal line.  
   
   
       8 . The tool as described in  claim 4 , further comprising a two-position flow valve operatively disposed between said secondary pump and said discharge line.  
   
   
       9 . The tool as described in  claim 6 , said adjustable fluid metering wheel further comprising a plurality of displacement settings for selectively and pivotally engaging a linkage member extending from said pump.  
   
   
       10 . The tool as described in  claim 9 , further comprising a substantially T-shaped body, a substantially L-shaped trigger being pivotally associated with said body and actuating additional linkage members associated with said fluid metering wheel to withdraw and admix the first and second fluids.  
   
   
       11 . The tool as described in  claim 1 , said tool having a specified shape and size and admixing a ratio of the first and second fluids extending from a range of 20:1 to 100:1.  
   
   
       12 . The tool as described in  claim 1 , said body having a specified shape and size and being constructed of at least one of a metal and a plastic material.  
   
   
       13 . The tool as described in  claim 12 , further exhibiting at least one transparent viewing port for revealing passageways associated with the first and second fluids.  
   
   
       14 . A metering and mixing mechanism, comprising: 
 a housing secured to a location associated with a first fluid holding container;    a volume of a second fluid held within a reservoir incorporated into said housing;    a first piston assembly selectively communicating with said interior volume of said fluid holding container and a second piston assembly communicating with said second volume reservoir; and    said first and second piston assemblies being cooperatively actuated to withdraw metered volumes of said first and second fluids and to admix said fluids into a common mixing chamber associated with said housing for distribution through an exit spout extending therefrom.    
   
   
       15 . The mechanism as described in  claim 14 , further comprising a handle mechanism operatively engaging each of said first and second piston assemblies.  
   
   
       16 . The mechanism as described in  claim 15 , said first piston assembly further comprising a three dimensional interior volume defined between an intermediate portion and a downwardly displaced plunger, retraction of said handle to a first position causing a volume of said first fluid to be admitted into said first piston assembly from said fluid holding container, displacement of said handle to a second position causing said first fluid to be admitted into said mixing chamber.  
   
   
       17 . The mechanism as described in  claim 15 , said second piston assembly further comprising a first position adjustable and sub-volume defining component, a second spring loaded component selectively unseating in a first position to permit said second fluid to fill said sub-volume, said spring loaded component displacing inwardly against said sub-volume in a second position to forcibly admit said second fluid into said mixing chamber.  
   
   
       18 . The mechanism as described in  claim 17 , said second piston assembly further comprising a position adjusting cam element, a stem projecting from said axially adjustable sub-volume defining component and seating within a channel configured within said cam element.  
   
   
       19 . The mechanism as described in  claim 18 , further comprising a spring-loaded check valve associated with a lower position of said position adjustable component.  
   
   
       20 . The mechanism as described in  claim 14 , further comprising a fill spout extending from a further location associated with said housing and communicating with said second volume holding reservoir.  
   
   
       21 . A metering and mixing mechanism, comprising: 
 a housing exhibiting a three dimensional shape and size;    a first piston assembly incorporated in said housing and communicating with a first externally located fluid reservoir; and    a second piston assembly cooperatively incorporated into said housing and communicating with a second internally located fluid reservoir;    said first and second piston assemblies being cooperatively actuated in a first position to withdraw metered volumes of said first and second fluids, said piston assemblies being actuated to a second position to admix said fluids into a common mixing chamber associated with said housing and for distribution from said housing.