Gas torch

• US 5,667,377 A
• Filed: 07/07/1995
• Issued: 09/16/1997
• Est. Priority Date: 07/07/1995
• Status: Expired due to Fees

• Current Assignee: Arlo H.T. Lin
• Original Assignee: Arlo H.T. Lin
• Inventors: Lin, Arlo H. T.
• Primary Examiner(s): Price, Carl D.
• Application Number:
  US08/499,755
• Time in Patent Office: 802 Days
• Field of Search: 431/254, 431/255, 431/256, 431/344, 431/153, 126/406
• US Class Current: 431/344
• 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 14/38 Torches, e.g. for brazing or heating nozzles F23D14/48
• CPC Class Codes: F23Q 2/287 piezoelectric

Abstract

A gas torch including a butane container having a top side mounted with a flame adjustment wheel and a gas lever and a holder frame, the holder frame having two outward mounting flanges at two opposite sides respectively secured to the top side of the butane container and holding a flame tube on the outside and an electronic igniter on the inside, a control button mounted on the holder frame above the top side of the butane container and depressed to trigger the electronic igniter, the control button having a backward extension frame, an actuating strip mounted on the backward extension frame of the control button and moved to lift the gas lever in releasing fuel gas from the butane container, and a transverse control bar mounted in the outward mounting flanges of the holder frame and controlled to hold the control button and the actuating strip in the depressed position or to force them back to stop fuel gas.

Claims

1. A gas torch comprising:

a fuel gas container with a flame adjustment wheel that controls a flow rate of fuel through a valve on said fuel gas container,

a gas lever that is raised to allow fuel to flow through a tubular portion of said lever to an oblique barrel and then to a flame tube connected to said barrel, said gas lever is lowered to stop fuel from flowing through said tubular portion, and

a holder frame;

said holder frame has two flanges on opposing sides thereof and is mounted on a top side of said fuel gas container via said flanges, and a flame tube mounted on said holder frame;

an electronic igniter with a control button mounted on said holder frame of said fuel gas container, said igniter is activated by a user depressing said control button,

said control button comprises a backward extension frame, said backward extension frame comprises a first hollow step, a second hollow step, an upright tail, a transverse rib disposed in said second hollow step and defining a first sliding way between said transverse rib and said upright tail, and a second sliding way between said transverse rib and said first hollow step;

an actuating strip mounted on said backward extension frame that actuates said gas lever to release fuel gas from said fuel gas container when said actuating strip is activated by a user depressing said control button, said control button moving said transverse control bar that is in communication with said actuating strip; and

wherein

when said transverse control bar is pressed from an outward position by the user to an inward position and said control button is then depressed by the user from an at-rest position to a depressed position, said extension frame of said control button moves under said control bar such that said control bar is moved from a first position in said first sliding way of said extension frame to a second position in said second sliding way of said extension frame, said control bar is then returned to said outward position by a force exerted by a compression spring contained in one of said flanges of said holder frame, said control bar thereby locking said control button and said actuating strip in position so as to maintain a constant flow of said fuel gas from said fuel container, and wherein

said control button and said actuating strip are released by the user again depressing said control bar such that said control button returns to said at-rest position, thereby lowering said actuating strip to stop the flow of fuel gas.

2. The gas torch of claim 1 wherein:

said transverse control bar has a first end that contacts said compression spring in said holder frame and a bottom recess corresponding to said transverse rib, said transverse control bar being shifted between said first sliding way and said second sliding way when said control button is depressed.

3. The gas torch of claim 2 wherein:

said first end of said transverse control bar is inserted through a hole on a first one of said flanges on said holder frame into a hole on a second one of said flanges on said holder frame and contacts said compression spring, and a second end of said transverse control bar extends out of said holder frame and terminates in a press rod;

said compression spring is mounted in said hole on said second flange of said holder frame and stopped against said transverse control bar.

4. The gas torch of claim 1 wherein:

said actuating strip has a bend at one end and a slope at an opposite end, said slope having a longitudinal hole which receives said gas lever, said actuating strip moves said gas lever between a closed position and an open position, said bend is connected to a rod in said first hollow step by a spring, said spring gives a forward pressure to said actuating strip, causing said actuating strip to urge said gas lever to said closed position.

5. The gas torch of claim 4 wherein:

said actuating strip further comprises a downward tongue that contacts an upright rib on said transverse control bar;

said transverse control bar including an upright rib moved to effect said contact of said downward tongue of said actuating strip.