IP Library Granted Patent US 8,292,614
Granted Patent B2
US 8,292,614 · App. 12/479,401 · Granted Oct 23, 2012

Liquid fuel cell

Assignee: Hollowick, Inc.
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Quick Facts
Patent No.
US 8,292,614
App. No.
12/479,401
Granted
Oct 23, 2012
Kind
B2
Abstract

A liquid fuel cell that includes a canister having a fuel reservoir and a burner assembly mounted upon the canister. The burner assembly contains a wick holding aperture that opens into the fuel reservoir and a wick that is made up of continuous fiber strands mounted in the tube. The wick is doubled over to create a crown that is vertically disposed above the top of the wick holding aperture and the two ends of the wick are arranged to pass down through the wick burner into the fuel reservoir. A number of fiber strands are severed in the crown region to create a small island of bristles which greatly enhances the wick's ability to be rapidly and efficiently ignited.

Claims (23)

1. A liquid fuel cell that includes:

a canister having a fuel reservoir for holding a quantity of liquid fuel;

a burner mounted upon said canister, said burner having a wick holding aperture that opens into said fuel reservoir;

a wick including continuous strands of wicking material that extend from one end of said wick to another end of said wick, said wick passing through said wick holding aperture, said wick being doubled over to form a U-shaped crown, said wick extending from said U-shaped crown of said wick that is located above said wick holding aperture, and passing downwardly through said wick holding aperture and extending into said fuel reservoir, whereby said liquid fuel is supplied to said U-shaped crown of said wick via capillary action; and

wherein a fraction representing substantially less than all-of said continuous strands that are located within said U-shaped crown of said wick are severed in a manner to create a region of bristles at said U-shaped crown and without entirely severing said wick at said U-shaped crown, in order to enhance rapid and efficient lighting of said wick at said U-shaped crown.

2. The fuel cell of claim 1 , wherein said fuel has a high flash point of above 200 degrees F.

3. The fuel cell of claim 2 , wherein the flash point of said fuel is above 300 degrees F.

4. The fuel cell of claim 1 , wherein the flash point of said fuel is about 200 degrees F.

5. The fuel cell of claim 1 wherein said wick is manufactured to include one or more strands that are severed at a location between two terminal ends of said wick.

6. A method of shortening the ignition time of a liquid fuel cell having a burner and a fuel reservoir for holding a quantity of liquid fuel, said method including the steps of:

providing a wick including continuous strands of wicking material that extend from one end of said wick to another end of said wick;

doubling over said wick to establish a U-shaped crown within a mid-region of said wick;

mounting said wick within a wick holding aperture in a burner in a manner so that said U-shaped crown of said wick is located above said wick holding aperture and said one end and said another end of said wick pass downwardly through said wick holding aperture and extend into said fuel reservoir; whereby said liquid fuel is supplied to said U-shaped crown of said wick via capillary action; and

modifying said wick by severing a fraction representing substantially less than all of said continuous strands within said U-shaped crown in a manner to create a plurality of bristles within said U-shaped crown while not entirely severing said wick at said U-shaped crown, in order to enhance rapid and efficient lighting of said wick at said U-shaped crown.

7. The method of claim 6 , wherein said bristles are created by touching a plurality of strands at said U-shaped crown of said wick with a heated wire.

8. The method of claim 6 , wherein said bristles are created by severing a plurality of adjacent strands at said U-shaped crown by employing a severing instrument.

9. The method of claim 8 , wherein said severing instrument is a cutting instrument.

10. The method of claim 8 wherein said severing instrument is an abrading instrument.

11. The method of claim 8 wherein said severing instrument is a heating instrument.

12. The method of claim 6 that includes a further step of filling said fuel reservoir with a quantity of liquid fuel that has a high flash point of above 200 degrees F.

13. The method of claim 12 , wherein said fuel reservoir is filled with a fuel having a flash point about 200 degrees F.

14. The method of claim 12 , wherein said fuel reservoir is filled with a fuel having a flash point above 300 degrees F.

15. The method of claim 6 wherein said wick is manufactured to include one or more strands that are designed to be severed at a location between two terminal ends of said wick by employing a tensile or torsional force to said location.

Assignments (5)
SECURITY INTEREST Recorded Jun 26, 2024
From: HOLLOWICK, INC.
To: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 067851/0837 →
RELEASE OF SECURITY INTEREST IN PATENTS RECORDED AT REEL/FRAME NOS: 059049/0531 AND 059061/0350 Recorded Jun 26, 2024
From: BMO BANK N.A. (FORMERLY KNOWN AS BMO HARRIS BANK N.A.)
To: HOLLOWICK, INC.
Reel/Frame 068052/0850 →
SECURITY INTEREST Recorded Feb 22, 2022
From: HOLLOWICK, INC.
To: BMO HARRIS BANK N.A., AS AGENT
Reel/Frame 059061/0350 →
SECURITY INTEREST Recorded Feb 18, 2022
From: HOLLOWICK, INC.
To: BMO HARRIS BANK N.A., AS AGENT
Reel/Frame 059049/0531 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 9, 2009
From: MITCHELL, CHARLES R. K.
To: HOLLOWICK, INC.
Reel/Frame 022799/0711 →
Continuity (2)
Continuation In Part 11230054 · Sep 19, 2005
Related Publication 20090239186A1 · Sep 24, 2009