GAS-POWERED TOOL

• US 20060278213A1
• Filed: 08/22/2006
• Published: 12/14/2006
• Est. Priority Date: 02/04/2005
• Status: Active Grant

• Current Assignee: Arlo Lin
• Original Assignee: Arlo Lin
• Inventors: Lin, Arlo
• Granted Patent: US 7,766,650 B2
• Time in Patent Office: Days
• US Class Current: 126/226
• CPC Class Codes: B23K 3/022 using a gaseous fuel
• CPC Class Codes: F23D 14/28 in association with a gaseous fuel source, e.g. acetylene generator, or a container for liquefied gas
• CPC Class Codes: F23D 14/72 Safety devices, e.g. operative in case of failure of gas supply
• CPC Class Codes: F23N 1/007 using mechanical means F23N1/04 - F23N1/10 take precedence

Abstract

A controller includes a shell, a valve, a temperature-sensitive regulator and a cover. The shell defines an intake, a first space in communication with the intake, a second space in communication with the first space and an outlet in communication with the second space. The valve is installed in the first space for shutting the intake. The temperature-sensitive regulator is installed in the second space for contact with the valve. The cover is used to shut the second space and contact the temperature-sensitive regulator.

Claims

1. A controller comprising:

a shell defining an intake, a first space in communication with the intake, a second space in communication with the first space and an outlet in communication with the second space;

a valve installed in the first space for shutting the intake;

a temperature-sensitive regulator installed in the second space for contact with the valve; and

a cover for shutting the second space and contacting the temperature-sensitive regulator.

2. The controller according to claim 1 wherein the shell defines a channel for communicating the intake with the first space.

3. The controller according to claim 2 wherein the shell comprises an annular ridge on the floor of the first space around the channel for contact with the valve.

4. The controller according to claim 1 wherein the shell defines a channel for communicating the second space with the outlet.

5. The controller according to claim 1 wherein the cover comprises an annular edge for contact with the temperature-sensitive regulator.

6. The controller according to claim 1 wherein the temperature-sensitive regulator is a laminate consisting of two metal layers with different coefficients of thermal expansion.