# US 9,482,430 B2 · Hot air generator burner with interchangeable lighter > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,482,430 B2 - Document ID: US9482430B2 - Status: Granted - Kind: B2 - Application number: 13/425,915 - Filed: 2012-03-21 - Published: 2012-11-15 - Granted: 2016-11-01 - Earliest claimed: 2011-05-11 - Assignees: Sefmat - Applicants: François Clement - Inventors: François Clement - Web page: https://patentgrep.com/patent/US9482430B2 ## CPC - F23D 14/38: Torches, e.g. for brazing or heating (nozzles F23D14/48) - F23D 14/465: {for torches (F23D14/52 takes precedence)} - F23D: BURNERS ## Abstract A heat-shrink gun in which an ignition voltage of the gaseous mixture is generated by a piezoelectric lighter (12), under the action of a trigger (8) when it is moved from a waiting position (8A) to a lighting position, characterized in that the trigger can also assume a loading position (8B), in which it free access (DC) to a working housing for the lighter. ## Claims ### Claim 1 A hot air device comprising: a head provided at a first, front portion of the device; a body adjacent to the head and including a second, back portion of the device opposite the first portion of the device, the body comprising an injection device configured to produce a combustible gaseous mixture flow at high speed, an ignition voltage of the gaseous mixture being generated by a piezoelectric lighter; a handle secured to the body and having a passage configured to receive the lighter therein; and a trigger hingedly mounted with the handle, the trigger being configured to pivot about a pivot axis between a first, waiting position, a second, lighting position in which the trigger is compressed backward about the pivot axis inside the handle from the first position to compress the lighter housed in the handle, and a third, loading position in which the trigger remains pivotally connected with the handle and is pivoted in a forward direction toward the front portion of the device to open or close access to the passage from the forward direction for removal or insertion of the lighter from the passage in the forward direction. ### Claim 2 (depends on 1) The device according to claim 1, wherein the third, loading position is in an over-tilted position relative to the first, waiting position, opposite the second, lighting position. ### Claim 3 (depends on 2) The device according to claim 2, further comprising retractable stop means by clipping to stop the trigger. ### Claim 4 (depends on 1) The device according to claim 1, further comprising at least one zone configured to store a spare lighter. ### Claim 5 (depends on 4) The device according to claim 4, wherein the at least one zone includes a first storage zone formed in the thickness of a guard for the trigger. ### Claim 6 (depends on 4) The device according to claim 4, wherein the at least one zone includes a storage zone formed in a boss of the body. ### Claim 7 (depends on 4) The device according to claim 4, wherein the storage zone comprises a housing for the spare lighter sized so that said spare lighter is maintained therein compressed longitudinally. ### Claim 8 (depends on 1) The device according to claim 1, wherein the hot air device is a heat-shrink gun. ### Claim 9 (depends on 2) The device according to claim 2, further comprising at least one zone configured to store a spare lighter. ### Claim 10 (depends on 3) The device according to claim 3, further comprising at least one zone configured to store a spare lighter. ### Claim 11 (depends on 5) The device according to claim 5, wherein the at least one zone includes a second storage zone formed in a boss of the body. ### Claim 12 (depends on 5) The device according to claim 5, wherein the first storage zone comprises a housing for the spare lighter sized so that said spare lighter is maintained therein compressed longitudinally between an access hatch and a bottom of the housing. ### Claim 13 (depends on 6) The device according to claim 6, wherein the storage zone comprises a housing for the spare lighter sized so that said spare lighter is maintained therein compressed longitudinally. ### Claim 14 (depends on 3) The device according to claim 3, wherein the retractable stop means is configured to stop an end of the trigger remote from the trigger axis. ### Claim 15 (depends on 2) The device according to claim 2, further comprising retractable stop means by snapping to stop the trigger. ### Claim 16 (depends on 15) The device according to claim 15, wherein the retractable stop means is configured to stop an end of the trigger remote from the trigger axis. ### Claim 17 (depends on 7) The device according to claim 7, wherein the spare lighter housing is sized so that the spare lighter is maintained therein compressed longitudinally between an access hatch and a bottom of the housing. ### Claim 18 A hot air device comprising: a body comprising an injection device configured to produce a combustible gaseous mixture flow at high speed, an ignition voltage of the gaseous mixture being generated by a piezoelectric lighter; a handle secured to the body and having a passage configured to receive the lighter therein and configured to permit removal of the lighter from a lighter housing; and a trigger hingedly mounted with the handle, the trigger being configured to cause the piezoelectric lighter to generate the ignition voltage when the trigger is pivoted from a waiting position to a lighting position, the trigger being configured to pivot about a pivot axis to open or close access to the passage for removal or insertion of the lighter without causing detachment from the handle. ### Claim 19 A hot air device comprising: a body comprising an injection device configured to produce a combustible gaseous mixture flow at high speed, an ignition voltage of the gaseous mixture being generated by a piezoelectric lighter, the body including a second storage zone configured to receive and store the piezoelectric lighter therein when the lighter is not disposed within the handle passage; a handle secured to the body and having a passage configured to receive the piezoelectric lighter therein and configured to permit removal of the piezoelectric lighter from a lighter housing; a guard extending to the front of the handle and including a first storage zone defined in the guard, the first storage zone being configured to receive and store the piezoelectric lighter therein when the lighter is not disposed within the handle passage; and a trigger hingedly mounted with the handle, the trigger being configured to cause the piezoelectric lighter to generate the ignition voltage when the trigger is pivoted from a waiting position to a lighting position and the piezoelectric lighter is in the handle passage, the trigger being configured to open or close access to the handle passage for removal or insertion of the piezoelectric lighter.