US 11,774,092 B2Granted

Blowtorch having continuous-flame mode

AssigneePro-Iroda Industries, Inc.

InventorWei Cheng Wu

Life of this patent

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Abstract

A blowtorch includes a casing and a control unit. The control unit includes an activate button and a lock button. The lock button is switchable between a first lock position and an intermediate position, or between the intermediate position and a second lock position. The activate button is switchable between a standby position and an activation position when the lock button is in the intermediate position. The lock button contacts the activate button and restricts the activate button to hold in the activation position when the activate button is in the activation position and the lock button is in the first lock position or the second lock position.

Claims6

Dependent claims

A blowtorch comprising:

a casing;
and
a control unit including an activate button and a lock button, wherein an end of the activate button is disposed in the casing, and another end of the activate button is exposed out of the casing, wherein the lock button has a first end, a second end opposite to the first end, and a middle portion between the first and second ends thereof, wherein the first and second ends of the lock button are respectively exposed out of and disposed on two opposite sides of the casing, wherein the middle portion of the lock button is disposed in the casing, wherein the lock button is further provided with a first pressing portion, a second pressing portion, and an outward flange disposed between the first and second pressing portions, wherein the first pressing portion and the second pressing portion are respectively disposed at the first and second ends the lock button,
wherein the lock button is switchable relative to the casing between a first lock position and an intermediate position, and is switchable relative to the casing between the intermediate position and a second lock position,
wherein the activate button is switchable between a standby position and an activation position when the lock button is in the intermediate position,
wherein the lock button contacts the activate button and restricts the activate button to hold in the activation position when the activate button is in the activation position and the lock button is in the first lock position or the second lock position, and
wherein the control unit further includes a first elastic member and a second elastic member, wherein the first elastic member is sleeved on the first pressing portion, wherein an end of the first elastic member abuts the outward flange, and another end of the first elastic member abuts an inner periphery of the casing, wherein the first elastic member is configured to push the lock button towards the intermediate position, wherein the second elastic member is sleeved on the second pressing portion, wherein an end of the second elastic member abuts the outward flange, and another end of the second elastic member abuts the inner periphery of the casing, and wherein the second elastic member is configured to push the lock button towards the intermediate position.

4 more elements

Dependencies are inferred from the claim text.

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Abstract

A blowtorch comprising:

a casing;
and
a control unit including an activate button and a lock button, wherein an end of the activate button is disposed in the casing, and another end of the activate button is exposed out of the casing, wherein the lock button has a first end, a second end opposite to the first end, and a middle portion between the first and second ends thereof, wherein the first and second ends of the lock button are respectively exposed out of and disposed on two opposite sides of the casing, wherein the middle portion of the lock button is disposed in the casing, wherein the lock button is further provided with a first pressing portion, a second pressing portion, and an outward flange disposed between the first and second pressing portions, wherein the first pressing portion and the second pressing portion are respectively disposed at the first and second ends the lock button,
wherein the lock button is switchable relative to the casing between a first lock position and an intermediate position, and is switchable relative to the casing between the intermediate position and a second lock position,
wherein the activate button is switchable between a standby position and an activation position when the lock button is in the intermediate position,
wherein the lock button contacts the activate button and restricts the activate button to hold in the activation position when the activate button is in the activation position and the lock button is in the first lock position or the second lock position, and
wherein the control unit further includes a first elastic member and a second elastic member, wherein the first elastic member is sleeved on the first pressing portion, wherein an end of the first elastic member abuts the outward flange, and another end of the first elastic member abuts an inner periphery of the casing, wherein the first elastic member is configured to push the lock button towards the intermediate position, wherein the second elastic member is sleeved on the second pressing portion, wherein an end of the second elastic member abuts the outward flange, and another end of the second elastic member abuts the inner periphery of the casing, and wherein the second elastic member is configured to push the lock button towards the intermediate position.

4 more elements