Patent ID: 7644711

Claim:
A spark arrestor assembly for a portable cooking unit, comprising: a base plate mountable to and operable with a portable cooking unit in surrounding relation to an opening formed in a portion of the portable cooking unit, said base plate defining an access port to the opening enabling communication with an interior portion of the portable cooking unit, said base plate having opposed transverse sides and being bowed between said opposed transverse sides to correspond to the curvature of a portion of a base of the portable cooking unit having a shape comprising part of a body of revolution and to which a back surface of said base plate is adjacently mountable in contact with the portion of the base; a spark arrestor slidingly fastened to a front surface of said base plate and slidingly movable along a non-linear path between (i) a first position fully covering said access port and (ii) a second position wherein said access port is open, said spark arrestor having opposed transverse sides and a tab protruding proximate one of said transverse sides for use in slidingly moving said spark arrestor relative to said access port; said spark arrestor having opposed longitudinal sides and defining a plurality of holes located between said longitudinal sides, said spark arrestor having a portion extending between said holes; and a cover plate slidingly fastened to a front surface of said base plate and substantially adjacent said spark arrestor, said cover plate being slidingly movable along a non-linear path independent of and relative to said spark arrestor and between (i) a first position fully covering said spark arrestor and (ii) a second position wherein said spark arrestor is substantially uncovered, and said cover plate having opposed transverse sides; wherein one of said transverse sides of said cover plate is engageable by said tab of said spark arrestor for causing sliding movement of said spark arrestor and said cover plate in tandem when said spark arrestor is moved in a sliding manner relative to said access port: wherein each of said spark arrestor and said cover plate have respective opposed transverse sides and are bowed between said respective opposed transverse sides to correspond to the curvature of the portion of the base of the portable cooking unit having a shape comprising part of a body of revolution.