CA2467291A1 - Utility lighter - Google Patents

Abstract

The present invention relates to a utility lighter (10) including a housing (12) having a handle (14) at one end (16) and a nozzle (18) at another end (20) and including a fuel supply (22) connected for selective fluid communication with the nozzle (18). An ignitor assembly, such as a piezoelectric mechanism (34), is operatively connected to the housing (12) for generating a spark proximate the nozzle (18) and an actuating assembly (38, 80, 46) is connected to the housing (12) proximate the handle and operates to both dispense fuel from the fuel supply (22) and to activate the ignitor assembly (34). A linking mechanism (120, 134, 140) is provided in order to initiate the flow of fuel from the fuel supply prior to generation of a spark such that a spark is generated when fuel is present at the nozzle (18). A
locating mechanism (150, 152, 162, 164) is provided proximate the valve (28) of the fuel container (22) in order to properly position the fuel container. (22) within the housing (12). In addition, an isolator cap (170) is disposed around the nozzle (18) to assist in directing the spark in the vicinity of the nozzle (18).

Claims (11)

1. An utility lighter comprising:

a housing having a handle proximate a first end, a nozzle proximate a second end and an electrically conductive housing portion disposed generally between the first and second ends, the second end of the housing including first and second electrodes forming a spark gap proximate the nozzle, wherein the first electrode is formed by the electrically conductive housing portion;

a fuel supply connected for selective fluid communication with the nozzle;
an electric ignitor assembly operatively connected to the housing for generating a spark in the spark gap, the electric ignitor assembly being operative to generate a voltage between first and second electrical contacts thereof, the first electrical contact being in contact with the electrically conductive housing portion and the second contact being electrically connected to the second electrode; and an actuating assembly connected to the housing proximate the handle and operative to dispense fuel from the fuel supply to the nozzle and to activate the electric ignitor assembly.

2. The lighter of claim 1 wherein the electric ignitor assembly is a piezoelectric mechanism.

3. The lighter of claim 2 wherein the piezoelectric mechanism has a forward end facing the second end of the housing and the electrically conductive housing portion abuts an electrical contact at the forward end of the piezoelectric mechanism.

4. The lighter of claim 1 wherein the nozzle forms the second electrode.

5. The lighter of claim 4 wherein a wire leads from the piezoelectric mechanism to the nozzle.

6. The lighter of claim 4 wherein the electrically conductive housing portion includes a tab extending toward the nozzle such that a spark gap is formed between the nozzle and the tab.

7. The lighter of claim 1 further comprising an electrically insulating cap disposed around at least a portion of the nozzle for preventing undesired sparks between the nozzle and the electrically conductive housing portion.

8. The lighter of claim 1 further including integral recesses on opposite sides of the handle for receiving a hanging member.

9. The lighter of claim 1 wherein the fuel supply further comprises a container housed in the handle and an inner surface of the handle is ramped to move the container toward the second end of the housing upon insertion into the handle.

10. The lighter of claim 1 wherein the actuating assembly includes a trigger extending from the handle and operating to actuate the ignitor assembly when pulled toward the first end of the housing.

11. The lighter of claim 1 wherein the electrically conductive housing portion is formed as a metal shell encasing a plastic substructure.