| 摘要 |
A portable heating appliance (10) has a member (14) to be heated and burner means (152,154) for heating the member (14). A fuel container (18) supplies fuel to the burner means (152,154) and fuel delivery valve means (30) controls the flow of fuel from the container (18) and includes control means (80) for preventing the flow of fuel when in a first position and for permitting the flow of fuel when in a second position. Vaporizer means vaporizes fuel from the container prior to supply to the burner means. A first biasing means (82) biases the control means (80) to the first position and actuator means (16) actuates the fuel delivery valve means in response to user actuation to enable the flow of fuel from the container (18). The actuator means (16) includes plunger (106) means which pushes in the control means (80) from the first position to the second position against the force of the first biasing means to open the fuel delivery valve means (30) so that the latter permits the flow of fuel to said burner means. The appliance also comprises a perforated metal flame arresting screen (186) around the burner means (152,154) for arresting flames during ignition, heat control means (110) being provided for maintaining a substantially constant heat level for the member. |
