Portable automotive waste oil extraction device and method of use

Abstract

The embodiments herein are directed to a portable, electric-powered, oil extraction device referred to herein by the acronym EWOK, which stands for “Electric Waste Oil Kit,” and a method for using the same. The EWOK of the instant innovation is comprised of at least a pump with a single inlet and outlet, a detachable inlet strainer to protect the pump, a clear inlet hose, a shutoff valve, a quick-connection outlet fitting, a power switch, a circuit breaker, an optional oil fill cap holder, and optional hose holder. In use the EWOK includes a tubular straw operative to be inserted far enough into an engine dipstick tube to facilitate removal of engine oil when negative pressure sufficient to draw out the oil through the straw is applied to said straw. Engine oil is drawn through the straw and into one or more holding tanks for disposal or other use.

We claim: 
     
         1 . A fluid extraction device, comprising:
 a housing covering and encasing a pump and wiring associated with said pump;   said pump having a single inlet port and a single outlet port;   electrical components comprising a start and stop power switch, operation indicator lights, and a power cord contained within said housing;   said housing comprising openings through which said inlet port and said outlet port extend;   a flexible inlet hose connecting to said single inlet port at the proximal end of said flexible hose;   a valve operative to manage and/or interrupt fluid flow;   a quick connect attached to said outlet port;   said flexible hose further comprising a quick connector assembly at the distal end of the flexible hose;   a straw-tube having a straw-adaptor at a proximal end of said straw-tube;   the straw-tube of sufficient diameter to enter and pass through the dipstick port of a vehicle and of sufficient length to extract all fluid within a vehicle oil pan;   said straw-adaptor operative to attach the straw-tube to the quick connector assembly of said flexible hose so as to form a leak proof attachment;   said straw-tube connected to the flexible hose and the flexible hose connected to the inlet port of the pump such that when the fluid extraction device is placed in operation the pump extracts liquid from a reservoir through the flexible hose and transfers the pumped liquid to a separate container through the single outlet port.   
     
     
         2 . The fluid extraction device of  claim 1 , where the housing further comprises a handle on the top portion of said housing of such surface geometry to permit an individual to carry the device. 
     
     
         3 . The fluid extraction device of  claim 1 , further comprising a circuit protector contained within the housing and configured to protect against over-current conditions. 
     
     
         4 . The fluid extraction device of  claim 1 , further comprising non-marring feet disposed and connected to the bottom of the housing upon which the device rests when in use. 
     
     
         5 . The fluid extraction device of  claim 1 , further comprising an inlet strainer/filter disposed between the flexible hose and the inlet port and operative to prevent foreign body materials within the extracted liquid from passing through said pump. 
     
     
         6 . The fluid extraction device of  claim 1 , where the outlet port is connected directly to a separate length of hosing that is disposed from the device to one or more holding tanks during extraction operations. 
     
     
         7 . The fluid extraction device of  claim 1 , further comprising a flexible hose holder attached to the side of said housing to attach the flexible hose when moving or carrying the device between operations and alternate locations. 
     
     
         8 . The fluid extraction device of  claim 1 , further comprising a fluid cap holder designed to prevent fill cap loss of fluid during extraction operations. 
     
     
         9 . The fluid extraction device of  claim 1 , where the straw-tube proximal end straw-adaptor connects to the quick connector assembly at the distal end of the flexible hose. 
     
     
         10 . The fluid extraction device of  claim 1 , where the quick connector assembly further comprises a valve disposed within the quick connector assembly to manage and/or interrupt fluid flow between the distal end and proximal end of said quick connector assembly.