Single use two-cycle oil packets and method therefor
A fuel and oil mixing system for an internal combustion engine-powered tool includes a single use container accommodating a predetermined volume of lubricating oil for mixing with a full tank of fuel in a fuel tank of the tool to yield a mixture of fuel and lubricating oil having a predetermined ratio of fuel to lubricating oil. A method for using the system includes steps of: providing a single use container having a predetermined volume of lubricating oil, supplying the predetermined volume of lubricating oil to a fuel tank of the tool, and filling the fuel tank to capacity with fuel such that the fuel mixes with the predetermined volume of lubricating oil and a resulting mixture of fuel and lubricating oil has a predetermined ratio of fuel to lubricating oil.
1 . A fuel and oil mixing system for an internal combustion engine-powered tool, the system comprising:
a predetermined volume of lubricating oil for mixing with a full tank of fuel in a fuel tank of the tool to yield a mixture of fuel and lubricating oil having a predetermined ratio of fuel to lubricating oil; and
a single use container for accommodating said predetermined volume of lubricating oil.
2 . The fuel and oil mixing system of claim 1 , wherein the predetermined ratio of fuel to lubricating oil is selected from the group consisting of 25:1, 32:1, 40:1 and 50:1.
3 . The fuel and oil mixing system of claim 1 , wherein the single use container comprises first and second flexible sheets, a perimeter of the first sheet being bonded to a perimeter of the second sheet.
4 . The fuel and oil mixing system of claim 1 , wherein the single use container further comprises means for destructively opening the single use container.
5 . The fuel and oil mixing system of claim 1 , wherein the lubricating oil is two cycle engine lubricating oil.
6 . A fuel and oil mixing system for an internal combustion engine-powered tool, the system comprising:
a predetermined volume of lubricating oil; and
means for providing said predetermined volume of lubricating oil to a fuel tank of the tool such that when the fuel tank is full, a resultant mixture of fuel and lubricating oil has a predetermined ratio of fuel to lubricating oil.
7 . The fuel and oil mixing system of claim 6 , wherein the predetermined fuel to lubricating oil ratio is selected from the group consisting of 25:1, 32:1, 40:1 and 50:1.
8 . The fuel and oil mixing system of claim 6 , wherein the means for providing said predetermined volume of lubricating oil comprises a single use container.
9 . The fuel and oil mixing system of claim 8 , wherein the single use container comprises first and second flexible sheets, a perimeter of the first sheet being bonded to a perimeter of the second sheet.
10 . The fuel and oil mixing system of claim 8 , wherein the single use container further comprises means for destructively opening the single use container.
11 . The fuel and oil mixing system of claim 6 , wherein the lubricating oil is two cycle engine lubricating oil.
12 . An internal combustion engine powered tool having a fuel and oil mixing system, the tool comprising:
an internal combustion engine operating on a mixture of fuel and oil having a predetermined ratio of fuel to lubricating oil, R;
a fuel tank in fluid communication with the internal combustion engine, said fuel tank having a fuel capacity, V c ;
a predetermined volume of lubricating oil, V o , such that the following equation is satisfied:
R
=
V
c
-
V
o
V
o
;
a single use container enclosing said predetermined volume of lubricating oil, V o .
13 . The internal combustion engine-powered tool of claim 12 , wherein the predetermined ratio of fuel to lubricating oil is selected from the group consisting of 25:1, 32:1, 40:1 and 50:1.
14 . The internal combustion engine-powered tool of claim 12 , wherein the fuel capacity, V c , of the fuel tank is not equal to one gallon.
15 . The internal combustion engine-powered tool of claim 12 , wherein the fuel capacity, V c , of the fuel tank is less than one gallon.
16 . The internal combustion engine-powered tool of claim 12 , wherein the single use container comprises first and second flexible sheets, a perimeter of the first sheet being bonded to a perimeter of the second sheet.
17 . The internal combustion engine-powered tool of claim 12 , wherein the single use container further comprises means for destructively opening the single use container.
18 . The internal combustion engine-powered tool of claim 12 , wherein the lubricating oil is two cycle engine lubricating oil.
19 . A method for providing a fuel and oil mixture to an internal combustion engine powered tool comprising steps of:
providing a single use container having a predetermined volume of lubricating oil;
supplying the predetermined volume of lubricating oil to a fuel tank of the tool; and
filling the fuel tank to capacity with fuel such that the fuel mixes with the predetermined volume of lubricating oil and a resulting mixture of fuel and lubricating oil has a predetermined ratio of fuel to lubricating oil.
20 . The method of claim 19 , wherein the predetermined ratio of fuel to lubricating oil is selected from the group consisting of 25:1, 32:1, 40:1 and 50:1.
21 . The method of claim 19 , wherein the single use container comprises first and second flexible sheets, a perimeter of the first sheet being bonded to a perimeter of the second sheet.
22 . The method of claim 19 , wherein the single use container further comprises means for destructively opening the single use container.
23 . The method of claim 19 , wherein the lubricating oil is two cycle engine lubricating oil.