Back to results
US 6,293,784 B1Granted
Pilot assembly
OwnerRobert Howard Griffioeninventor
Life of this patent
Estimating the term…
Abstract
A pilot assembly includes a two part pilot housing and an orifice member mounted between the two housing parts. One housing part is fixable to a mount in a gas burning device and has a through passage. The orifice member is received in the passage. At least a portion of the other housing part is received in the passage to fix the orifice member in the passage.
Claims26
A pilot assembly for providing a pilot flame to ignite gas in a gas burning device, comprising:
- a monolithic, generally tubular first element formed of a single piece of material and having:
- (1) opposite first and second ends,
- (2) first and second end recesses axially opening through said first and second ends, respectively, of said first element,
- (3) an integral, radially inward extending, diametral wall axially spaced intermediate said first and second ends, said integral diametral wall axially separating said first and second end recesses, said integral diametral wall having a gas connector ferrule engaging and sealing surface adjacent the inner end of said first recess and facing into said first recess,
- (4) an opening axially through said integral diametral wall and axially communicating said first recess with said second recess, said opening being of diameter less than that of said recesses;
- a mounting bracket, said first element opening through and being fixed adjacent its second end to said mounting bracket, said first element extending away from a first side of said mounting bracket;
- a generally tubular second element having a first end removably fixed with respect to said first element, said second element extending away from a second side of said mounting bracket and said first element;
- a generally tubular member fixedly removably received in said second recess of said first element, said integral diametral wall of said first element axially backing said generally tubular member, said generally tubular member comprising a gas passage axially therethrough and a radial wall across said gas passage, said radial wall having a gas metering orifice axially therethrough and of diameter less than said gas passage.
5 more elements
A pilot assembly for providing a pilot flame to ignite gas in a gas burning device, comprising:
- a generally tubular first element having:
- (1) opposite first and second ends,
- (2) first and second recesses axially opening through said first and second ends respectively of said first element,
- a mounting bracket, said first element opening through and being fixed adjacent its second end to said mounting bracket, said first element extending away from a first side of said mounting bracket;
- a generally tubular second element having a first end removably fixed with respect to and telescoped in said second recess of said first element, said second element extending away from a second side of said mounting bracket and from said first element;
- a generally tubular member having a first end portion fixedly removably received in said second recess of said first element, said generally tubular member having a gas passage axially therethrough.
3 more elements
A pilot assembly for producing a pilot flame to ignite gas in a gas burning device, comprising:
- a generally tubular first element and a gas passage extending axially through said first element;
- a mounting bracket, said first element opening through and being fixed adjacent its second end on said mounting bracket, said first element extending away from a first side of said mounting bracket;
- a substantially tubular second element having a first end adjacent and removably fixed with respect to said first element, said second element extending away from a second side of said mounting bracket and from said first element;
- a generally tubular member having a first end portion fixedly removably received in said first element, said generally tubular member having a gas passage axially therethrough, said generally tubular member being at least partially received in said first end of said generally tubular second element.
1 more element
A method of adapting a gas pilot to different gas types, comprising the steps of:
- providing a generally tubular first member having
- (1) a gas flow passage therethrough,
- (2) a transverse annular wall partly blocking said passage and separating elongate upper and lower portions of said passage,
- (3) interior first threads within said passage upper portion, and
- (4) gas supply connection structure on its lower portion and including second threads;
- providing a mount;
- providing a generally tubular second member having a gas flow passage therethrough and third threads on its lower portion;
- providing plural generally tubular third members respectively carrying differing size orifices suitable for metering different conductive gases;
- fixedly depending said first member from said mount;
- inserting one said generally tubular third member in said upper passage portion of said first member from above said mount and seating same on said transverse annular wall of said first member;
- interengaging said first and third threads and threadedly rotating said second member into the upper passage portion of said first member until a portion of said second member urges said one third member against said first member transverse wall in sealed engagement therewith.
8 more elements
A pilot assembly for providing a pilot flame to ignite gas in a gas burning device, comprising:
- a mounting bracket;
- a generally tubular first member fixedly depending from said mounting bracket, said first member having a gas receiving portion to one side of said mounting bracket;
- a generally tubular second member extending from the other side of said mounting bracket, having a pilot flame emitting portion remote from said mounting bracket, and being removably fixed with respect to said first member;
- a third member disposed in a gas passage extending through said generally tubular first and second members, said third member having a gas flow regulating orifice disposed in said gas flow passage and being accessible for replacement with said second member removed from said first member, in which said second member is directly removably fixed to said first member by cooperating threads on said first and second members.
1 more element
Dependencies are inferred from the claim text.