Combustion – Electrical or mechanical igniter correlated with burner feed – Having electric current producer
Patent
1993-02-16
1994-02-15
Dority, Carroll B.
Combustion
Electrical or mechanical igniter correlated with burner feed
Having electric current producer
F23Q 712
Patent
active
052861899
ABSTRACT:
An ignitor housing wherein a piezoelectric device is supported is releasably attached to a backpiece of a torch tip assembly. The housing surrounds air inlet openings to allow passage of a high tension wire from the piezoelectric device to a support site downstream of the gas flow direction where spark gap is established. An actuator button for the piezoelectric device is closely adjacent to the support site for the torch to enable the operator to operate the button while supporting and controlling the torch with one hand. The site of the actuator button is very favorable for resisting the reaction forces to the actuating force on the button. The housing is constructed to enable replacement of internal components of the ignitor as well as replacement of the housing on the backpiece. The housing can be made from any of variety of materials because the support site on the backpiece always remains cool during operation of the torch. In all embodiments, the torch includes a replaceable tip for a gas supply and supports the ignitor housing.
REFERENCES:
patent: 4348172 (1982-09-01), Miller
patent: 4526532 (1985-07-01), Nelson
patent: 4720259 (1988-01-01), Day
patent: 4804324 (1989-02-01), Yoshinaga
patent: 4881894 (1989-11-01), Chapin
patent: 4886447 (1989-12-01), Goss
patent: 4952138 (1990-08-01), Ho
patent: 4954078 (1990-09-01), Nelson
patent: 5071342 (1991-12-01), Yoshinaga
patent: 5123837 (1992-06-01), Farnham
Dority Carroll B.
Poff Clifford A.
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