Method of fueling an oil lamp
Garden torches, hurricane lanterns and other oil lamps can be refueled through a flexible hose terminating in a tube or hollow needle insertable into the lamp's fuel reservoir through a wick slot. This method avoids skin contact with fuel and with soot deposited on the oil lamp reservoir.
Latest Patents:
The invention deals with garden torches and, more generally with oil lamps having a fibrous wick supported by a wick guide or support. The wick generally has a lower end in a liquid fuel container and an upper, free, end above the guide or support.
BACKGROUND INFORMATIONOil lamps commonly use a fuel reservoir having a slotted top. A fibrous wick, which may be consumable (e.g., cotton) or non-consumable (e.g., fiberglass) extends from the reservoir upwardly through the slot. Common approaches to refueling an oil lamp may require removing the entire top of the reservoir, which may expose the person doing the refueling to a fuel-saturated wick as well as to residual soot on the wick or on the outside of the reservoir.
BRIEF SUMMARY OF THE INVENTIONOne aspect of the invention is that it provides a method of adding fuel to a fuel reservoir of an oil lamp having a fibrous wick extending upwardly from an inside of the reservoir through a slot in a top of the reservoir. This method comprises connecting a flexible hose assembly between a supply vessel and an input end of a tube or hollow needle. The other, output end of the needle is then inserted through the slot into the reservoir and the fuel is urged to flow from the supply vessel through the flexible hose assembly into the fuel reservoir of the oil lamp.
It is an object of the invention to provide an approach to refueling an oil lamp that does not expose an operator's skin to contact with fuel or with soot that may be on the lamp.
Those skilled in the art will recognize that the foregoing broad summary description is not intended to list all of the features and advantages of the invention. Both the underlying ideas and the specific embodiments disclosed in the following Detailed Description may serve as a basis for alternate arrangements for carrying out the purposes of the present invention and such equivalent constructions are within the spirit and scope of the invention in its broadest form. Moreover, different embodiments of the invention may provide various combinations of the recited features and advantages of the invention, and that less than all of the recited features and advantages may be provided by some embodiments.
In studying this Detailed Description, the reader may be aided by noting definitions of certain words and phrases used throughout this patent document. Wherever those definitions are provided, those of ordinary skill in the art should understand that in many, if not most, instances such definitions apply both to preceding and following uses of such defined words and phrases.
Turning now to
In the arrangement shown in
Although the shut-off valve 28 is shown adjacent the input end of the needle in
Another arrangement for refueling an oil lamp is shown in
In the depiction of
It may be noted that pumped delivery may be used with the flexible bladder of
Turning now to
The fueling needle may be a metal tube or may be formed of a suitable plastic and may have a wide variety of lengths. The outer diameter of the needle is selected to be small enough to fit through the slot formed in the top of the oil lamp and, if wick-feeding or support elements 44 are present, is preferably small enough to fit between the wick-feeding or support elements and a wall of the slot.
Although the present invention has been described with respect to several preferred embodiments, many modifications and alterations can be made without departing from the invention. Accordingly, it is intended that all such modifications and alterations be considered as being within the spirit and scope of the invention as defined in the attached claims.
Claims
1. A method of adding fuel to a fuel reservoir of an oil lamp having a fibrous wick extending upwardly from an inside of the reservoir through a slot in a top of the reservoir, the method comprising the steps of:
- providing a supply vessel holding a supply of the fuel;
- providing a flexible hose assembly having two ends, a first end of the flexible hose assembly connected to the supply vessel, the second end of the flexible hose assembly attached to an inlet end of a fueling tube;
- inserting an outlet end of the fueling tube through the slot into the reservoir; and
- urging the fuel to flow from the supply vessel, through the flexible hose assembly and into the fuel reservoir.
2. The method of claim 1 wherein the supply vessel comprises a flexible bladder.
3. The method of claim 1 wherein the supply vessel comprises a rigid container having a vent allowing air to enter the rigid container as fuel is withdrawn.
4. The method of claim 1 wherein the supply vessel is held above the oil lamp so that the fuel is urged from the supply vessel to the fuel reservoir by the force of gravity.
5. The method of claim 1 further comprising providing a pump to urge the fuel from the supply vessel to the fuel reservoir.
6. The A method of claim 1 wherein adding fuel to a fuel reservoir of an oil lamp having a fibrous wick extending upwardly from an inside of the reservoir through a slot in a top of the reservoir, the method comprising the steps of:
- providing a supply vessel holding a supply of the fuel;
- providing a fueling tube having inlet and outlet ends, the inlet end of the fueling tube connected to the supply vessel;
- inserting the outlet end of the fueling tube is inserted between the wick and a fixed portion of the top of the reservoir; and
- urging the fuel to flow from the supply vessel, through the fueling tube and into the fuel reservoir.
7. The A method of claim 1 wherein adding fuel to a fuel reservoir of an oil lamp having a fibrous wick extending upwardly from an inside of the reservoir through a slot in a top of the reservoir, the method comprising the steps of:
- providing a supply vessel holding a supply of the fuel;
- providing a fueling tube having inlet and outlet ends, the inlet end of the fueling tube connected to the supply vessel;
- inserting the outlet end of the fueling tube through the slot into the reservoir so that the outlet end of the fueling tube is inserted through the wick; and
- urging the fuel to flow from the supply vessel, through the fueling tube and into the fuel reservoir.
8. The method of claim 1 wherein the hose assembly consists of a single flexible hose.
9. The method of claim 1 wherein the fueling tube comprises a shutoff valve adjacent the inlet end thereof.
516540 | March 1894 | Johnson |
4281692 | August 4, 1981 | Caccamisi |
5829966 | November 3, 1998 | Stoner |
5881692 | March 16, 1999 | Lassanske |
6010333 | January 4, 2000 | Tendick, Sr. |
6579090 | June 17, 2003 | Taubitz et al. |
6874701 | April 5, 2005 | Turberville |
20010016305 | August 23, 2001 | Chen |
- Patient Information: Port-A-Cath; Smiths Medical ASD, Inc.; 2009.
Type: Grant
Filed: Jun 16, 2015
Date of Patent: Oct 4, 2016
Assignee: (Miami, FL)
Inventor: Ricardo J Jorge (Miami, FL)
Primary Examiner: Sara Clarke
Application Number: 14/740,366
International Classification: B65B 1/04 (20060101); F21V 37/00 (20060101); B67D 3/00 (20060101); F23Q 2/52 (20060101);