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Compressor for liquid fuel canisterCompressor for liquid fuel canister description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20080025856, Compressor for liquid fuel canister. Brief Patent Description - Full Patent Description - Patent Application Claims
REFERENCE TO RELATED APPLICATION [0001]This patent application claims the benefit of U.S. Provisional Patent Application No. 60/820,934, filed Jul. 31, 2006, and incorporated herein in its entirety. TECHNICAL FIELD OF THE INVENTION [0002]The present invention relates to burner appliances, and more specifically to liquid fuel burner appliances. BACKGROUND OF THE INVENTION [0003]Liquid fuel camp stoves and lanterns for camping and outdoor use are well known and are described, for example, in U.S. Pat. No. 3,876,364, which is owned by The Coleman Company, Inc., assignee of the present invention. Liquid fuel that is used in such camp stoves and lanterns may be, for example, COLEMAN brand fuel, white gas, unleaded gasoline, or other liquid fuels. [0004]In conventional liquid fuel camp stoves such as the ones which The Coleman Company, Inc. has offered for many years, fuel is contained in a pressure vessel or fuel tank (hereinafter "fuel canister") into which air is pumped under pressure. As described in U.S. Pat. No. 3,876,364, the fuel canister is equipped with a dip tube which extends to nearly the bottom of the canister. The dip tube is closed at the bottom with the exception of a small diameter orifice through which fuel is allowed to enter. The dip tube has an internal conduit which is open at the bottom and which communicates with the upper part of the fuel canister above the maximum intended fuel level. The small diameter orifice supplies fuel and the internal conduit supplies air for an air/fuel mixture that is supplied by the dip tube to a burner appliance. [0005]To aid in feeding the air/fuel mixture to a burner appliance, the fuel canister is pressurized. Prior art fuel canisters include a manual pump to pressurize the canister. The pumps for such fuel canisters can be awkward, because a user has to grip the fuel canister and place his or her thumb over the end of a rod for the pump, and then pump the canister 10 to 20 times to provide adequate pressurization. In addition, the pump mechanism often extends well into the fuel canister, limiting the volume of fuel the canister can hold. [0006]Another downside to prior art fuel canisters is that the air that is pressurized comes from the inside of the fuel canister via a small conduit. The small conduit must be arranged above the maximum fuel level while the pump is being operated. Thus, the fuel canister must be oriented properly to maintain the end of an air inlet for the pump above the fuel level. If the fuel canister is oriented the wrong way, or is tipped over, air to the pump may be blocked. SUMMARY OF THE INVENTION [0007]The following presents a simplified summary of some embodiments of the invention in order to provide a basic understanding of the invention. This summary is not an extensive overview of the invention. It is not intended to identify key/critical elements of the invention or to delineate the scope of the invention. Its sole purpose is to present some embodiments of the invention in a simplified form as a prelude to the more detailed description of some embodiments that are presented later. [0008]In accordance with an embodiment, a compressor is provided for a fuel canister. The compressor includes a handle or other device for rotating a shaft. Rotation of the shaft causes the operation of pistons, which drive air into the fuel canister, thus pressurizing the fuel canister. [0009]In an embodiment, the compressor is a rotary style compressor. In another embodiment, the compressor is a horizontally opposed compressor system. Other compressor configurations may be used. [0010]In accordance with an embodiment, the compressor is mounted mostly or fully outside the fuel canister, thus permitting the fuel canister to be filled with fuel. [0011]In addition, because the compressor relies on air from outside the fuel canister, the fuel canister may be oriented in any direction during pressurization. [0012]Other features of the invention will become apparent from the following detailed description when taken in conjunction with the drawings, in which: BRIEF DESCRIPTION OF THE DRAWINGS [0013]FIG. 1 is a side view of a fuel canister incorporating a compressor in accordance with an embodiment; [0014]FIG. 2 is a side perspective view of the compressor of FIG. 1; [0015]FIG. 3 is a diagrammatical section view taken along the section lines 3-3 in FIG. 2; [0016]FIG. 4 is a detailed view of a one-way check valve for the compressor of FIG. 2, with the check valve in a closed position; [0017]FIG. 5 is a detailed view of the check valve of FIG. 4, with the check valve in an opened position; [0018]FIG. 6 is an exploded, side perspective view of a portion of the compressor of FIG. 2; [0019]FIG. 7 is a diagrammatical sectional view taken along the section lines 7-7 of FIG. 2; Continue reading about Compressor for liquid fuel canister... Full patent description for Compressor for liquid fuel canister Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Compressor for liquid fuel canister patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Compressor for liquid fuel canister or other areas of interest. ### Previous Patent Application: Piston pump and piston ring Next Patent Application: Piston pump with improved pressure build-up dynamics Industry Class: Pumps ### FreshPatents.com Support Thank you for viewing the Compressor for liquid fuel canister patent info. IP-related news and info Results in 0.36441 seconds Other interesting Feshpatents.com categories: Tyco , Unilever , Warner-lambert , 3m 174 |
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