US4875464A — Clean burning gas log burner system

Claim 1

Independent Claim 142 words

A decorative gas log burning system, comprising: decorative gas log means, openings in said decorative gas log means to permit gas flames to appear as being emitted from the gas log means, gas burner means mounted below said gas log means for producing large decorative gas flames directed unrestrained through said openings in said gas log means, shield means mounted over said gas burner means, said shield means having a pair of substantially vertical walls arranged on opposite sides of said gas burner means, horizontal openings in said shield means opposite the openings in said gas log means for permitting said decorative flames to escape from said shield means, and said shield means having a horizontal section connecting said vertical walls for restricting flames from said gas burner means to said openings in said gas shield means and said gas log means.

Claim 2

Dependent Claim 142 words

A decorative gas log burning system, comprising: decorative gas log means, openings in said decorative gas log means to permit gas flames to appear as being emitted from the gas log means, gas burner means mounted below said gas log means for producing large decorative gas flames directed unrestrained through said openings in said gas log means, shield means mounted over said gas burner means, said shield means having a pair of substantially vertical walls arranged on opposite sides of said gas burner means, horizontal openings in said shield means opposite the openings in said gas log means for permitting said decorative flames to escape from said shield means, and said shield means having a horizontal section connecting said vertical walls for restricting flames from said gas burner means to said openings in said gas shield means and said gas log means.

Claim 3

Dependent Claim 83 words

A decorative gas log burning system as set forth in claim 1 wherein said gas burner means comprises a continuous burner tube closed at one end, said continuous burner tube having arrays of discontinuous large holes for producing long yellow decorative gas flames, and flame propagation means located between said arrays of discontinuous large holes for conveying a flame from one of said arrays of large holes to another and for supporting said flames at all said arrays along said continuous burner tube.

Claim 4

Dependent Claim 28 words

A decorative gas log burning system as set forth in claim 2 wherein said flame propagation means comprises arrays of small holes for producing short, blue propagation flames.

Claim 5

Dependent Claim 27 words

A decorative gas log burning system as set forth in claim 3 wherein said arrays of small holes are arranged as discontinuous arrays between said large holes.

Claim 6

Dependent Claim 44 words

A decorative gas log burning system as set forth in claim 4 wherein said arrays of small holes are positioned opposite said horizontal section of said flame shield means for producing blue flames which combine and enhance with said long yellow decorative gas flames.

Claim 7

Dependent Claim 47 words

A decorative gas log burning system as set forth in claim 3 wherein said continuous burner tube of said gas burner means further includes discontinuous arrays of enhancement holes parallel to said arrays of large holes for enhancing the production of said large yellow decorative gas flames.

Claim 8

Dependent Claim 33 words

A decorative gas log burning system as set forth in claim 1 wherein said shield means further includes deflector means connected to said shield means in the path of said decorative gas flames.

Claim 9

Dependent Claim 34 words

A decorative gas log burning system as set forth in claim 7 wherein said deflector means provides a hot wall for mixing burning gasses to provide a curtain of long yellow decorative gas flames.

Claim 10

Dependent Claim 46 words

A decorative gas log burning system as set forth in claim 8 wherein said deflector means extends at an inclined angle over said horizontal openings in said shield means for directing said curtain of yellow decorative gas flames through said openings in said gas log means.

Claim 11

Dependent Claim 30 words

A decorative gas log burning system as set forth in claim 7 wherein said deflector means is formed from a portion of said horizontal openings in said gas shield means.

Claim 12

Dependent Claim 30 words

A decorative gas log burning system as set forth in claim 7 wherein said deflector means comprises two oppositely disposed deflectors connected to said vertical walls of said shield means.

Claim 13

Dependent Claim 40 words

A decorative gas log burning system as set forth in claim 7 wherein one of said vertical walls is spaced apart from said gas burner means to provide a space for combustion air to enter from below said burner tube.

Claim 14

Dependent Claim 30 words

A decorative gas log burner system as set forth in claim 7 wherein said deflector means comprises a plurality of deflectors each being connected to one of said vertical walls.

Claim 15

Dependent Claim 35 words

A decorative gas log burner system as set forth in claim 13 wherein said deflectors are arranged opposite each other on opposite vertical walls and said vertical walls are spaced apart from said burner tube.

Claim 16

Dependent Claim 71 words

A decorative gas log burner system as set forth in claim 1 wherein one of said vertical walls is spaced apart from said burner tube and is provided with a screen to allow combustion air to enter between the vertical wall and said burner means, and fireproof aggregate means covering said burner tube and said screen means, said fireproof means aggregate being supported by said vertical walls and said screen means.

Claim 17

Dependent Claim 69 words

A decorative gas log burner system as set forth in claim 1 wherein said decorative log means comprises a composite log having a plurality of apertures therein, and said gas burner means comprising a continuous irregular shaped burner tube having a plurality of arrays of large holes, each array of large holes being arranged individually below one of said plurality of said openings in said composite gas log means.

Claim 18

Dependent Claim 34 words

A decorative gas log burner system as set forth in claim 16 wherein said shield means comprises a plurality of individual shields mounted over said gas burner means at said arrays of large hole.

Claim 19

Dependent Claim 71 words

A decorative gas log burner system as set forth in claim 16 wherein said gas burner means comprises a plurality of burner tube portions having said plurality of large hole arrays which are interconnected with burner tube portion having means for providing a continuous pilot or flame between said large hole arrays, and individual shield means having horizontal sections connecting said side walls for mounting on said irregular shaped burner tube.

Claim 20

Independent Claim 144 words

A method of clean burning gas fuel under decorative gas logs comprising the steps of: arranging decorative logs over an elongated gas burner of the type having large burner holes at the point where large decorative flames are desired, providing openings in said decorative logs through which said decorative flames are to be directed, placing a flame directing shield over said elongated burner to direct said decorative flame through said openings in said decorative logs, and placing openings in said flame shield opposite said large burner holes and aligned with said openings in said decorative logs so that gas fuel leaving said large burner holes is simultaneously burned and directed through the openings in said gas logs without the major portion of the decorative flames engaging against said decorative logs and losing heat thereto which would diminish the clean burning of said gas fuel.

Claim 21

Independent Claim 144 words

A method of clean burning gas fuel under decorative gas logs comprising the steps of: arranging decorative logs over an elongated gas burner of the type having large burner holes at the point where large decorative flames are desired, providing openings in said decorative logs through which said decorative flames are to be directed, placing a flame directing shield over said elongated burner to direct said decorative flame through said openings in said decorative logs, and placing openings in said flame shield opposite said large burner holes and aligned with said openings in said decorative logs so that gas fuel leaving said large burner holes is simultaneously burned and directed through the openings in said gas logs without the major portion of the decorative flames engaging against said decorative logs and losing heat thereto which would diminish the clean burning of said gas fuel.

Claim 22

Dependent Claim 32 words

A method as set forth in claim 19 which further includes the step of directing said decorative flames directly through said openings in said decorative logs without impinging on said decorative logs.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1992-10-23	1993-04-24	1993-10-24	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1996-10-23	1997-04-24	1997-10-24	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2000-10-23	2001-04-24	2001-10-24	$7700.00	Window Closed / Lapsed

Clean burning gas log burner system

Abstract

Inventors

Bibliographic Details

Claims Analysis

References Cited (Backward Citations)

USPTO Annuity & Maintenance Windows

Assigned Categories & Tags

Assign Category Tag