Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
266 words
A high velocity gas igniter comprising: a housing formed with a primary mixing chamber having an upstream wall formed with gas inlet port means and primary air inlet port means; a secondary mixing and expansion chamber disposed downstream of said primary mixing chamber and having its upstream wall formed with a plurality of flow restriction ports forming a relatively small composite cross sectional flow area for restricting flow from said primary mixing chamber to said secondary mixing chamber, said secondary chamber being formed at its downstream end with a back pressure ring defining an outlet port having a relatively large cross-sectional area; a vortex plate disposed on the downstream side of said flow restriction ports, air deflector vane means projecting axially from said outlet port; and flame retention ring means disposed in confronting relationship with said outlet port and spaced therefrom whereby a gas conduit may be connected with said inlet and pressurized combustible gas supplied thereto to initiate flow through said primary mixing chamber to draw ambient air through said air inlet port means for mixing with said gas to form an air-gas mixture to flow through said flow restriction ports to strike said vortex plate means to provide a relatively low velocity and low pressure mixture in said secondary mixing and expansion chamber for flow at a slow rate from said outlet port thus enabling the expelled mixture to be ignited and when a high velocity flow stream flows past said igniter, said deflector vane means will serve to deflect such stream past said outlet port to prevent entry into said secondary mixing chamber.
Claim 2
Dependent Claim
266 words
A high velocity gas igniter comprising: a housing formed with a primary mixing chamber having an upstream wall formed with gas inlet port means and primary air inlet port means; a secondary mixing and expansion chamber disposed downstream of said primary mixing chamber and having its upstream wall formed with a plurality of flow restriction ports forming a relatively small composite cross sectional flow area for restricting flow from said primary mixing chamber to said secondary mixing chamber, said secondary chamber being formed at its downstream end with a back pressure ring defining an outlet port having a relatively large cross-sectional area; a vortex plate disposed on the downstream side of said flow restriction ports, air deflector vane means projecting axially from said outlet port; and flame retention ring means disposed in confronting relationship with said outlet port and spaced therefrom whereby a gas conduit may be connected with said inlet and pressurized combustible gas supplied thereto to initiate flow through said primary mixing chamber to draw ambient air through said air inlet port means for mixing with said gas to form an air-gas mixture to flow through said flow restriction ports to strike said vortex plate means to provide a relatively low velocity and low pressure mixture in said secondary mixing and expansion chamber for flow at a slow rate from said outlet port thus enabling the expelled mixture to be ignited and when a high velocity flow stream flows past said igniter, said deflector vane means will serve to deflect such stream past said outlet port to prevent entry into said secondary mixing chamber.
Claim 3
Dependent Claim
36 words
A high velocity gas igniter as set forth in claim 1 that includes: a plenum chamber formed upstream of said air inlet port means and including air introduction ports for introducing air into said plenum chamber.
Claim 4
Dependent Claim
32 words
A high velocity gas igniter as set forth in claim 1 wherein: said flame retention ring means includes a ring formed with a central opening centered in front of said outlet port.
Claim 5
Dependent Claim
31 words
A high velocity gas igniter as set forth in claim 1 wherein: said deflector vane includes a plate projecting centrally from said outlet port and having said ring means mounted thereon.
Claim 6
Dependent Claim
26 words
A high velocity gas igniter as set forth in claim 1 that includes: a blocking plate disposed in front of said outlet port and spaced therefrom.
Claim 7
Dependent Claim
30 words
A high velocity gas igniter as set forth in claim 1 that includes: a starter mounted on one side of said housing and including electric circuit means for energization thereof.
Claim 8
Dependent Claim
29 words
A high velocity gas igniter as set forth in claim 1 that includes: steel wool means in said secondary mixing chamber to form a circuitous path for said mixture.
Claim 9
Dependent Claim
58 words
A high velocity gas igniter as set forth in claim 1 wherein: said deflector vane means includes a plate projecting centrally into said secondary mixing chamber and fastened on its opposite sides to said flame retention ring means and said igniter includes a vortex plate carried from said plate and disposed in front of said flow restriction ports.
Claim 10
Dependent Claim
48 words
A high velocity gas igniter as set forth in claim 1 for use as a pilot light and including: pipe means having said housing received in and disposed proximate one end thereof and of sufficient cross sectional area to form a path therearound for travel of cooling air.