Flammable vapor recovery system
First Claim
Patent Images
1. Apparatus comprising:
- a liquid dispensing system including tank means for holding a flammable liquid, hose means for dispensing said liquid, and discharge nozzle means on said hose means;
means for collecting flammable vapors of said liquid, with varying B.T.U. content, from said dispensing system and including collection line means for withdrawing vapors from the vicinity of said nozzle means during a dispensing operation;
two burners connected to said vapor collecting means to receive therefrom and burn collected vapors of varying B.T.U. content, said two burners having different burning characteristics for burning vapors of different high and low B.T.U. contents respectively; and
automatic control means operable to burn said collected vapors in a first of said burners but not the second when said vapors are of a first B.T.U. content, and responsive automatically to a change in B.T.U. content of said collected vapors to burn said collected vapors when of a second B.T.U. content in said second burner.
0 Assignments
0 Petitions
Accused Products
Abstract
A vapor recovery system in which gasoline vapors or other flammable vapors are withdrawn from the vicinity of a like, and are disposed of by combustion in a burner system, preferably consisting of two burners selectively usable for burning vapor-air mixtures of different B.T.U. contents. The vapors may be temporarily stored by adsorption onto an adsorbing substance, and then be removed from that substance by conducting a flow of air therepast.
73 Citations
15 Claims
-
1. Apparatus comprising:
-
a liquid dispensing system including tank means for holding a flammable liquid, hose means for dispensing said liquid, and discharge nozzle means on said hose means; means for collecting flammable vapors of said liquid, with varying B.T.U. content, from said dispensing system and including collection line means for withdrawing vapors from the vicinity of said nozzle means during a dispensing operation; two burners connected to said vapor collecting means to receive therefrom and burn collected vapors of varying B.T.U. content, said two burners having different burning characteristics for burning vapors of different high and low B.T.U. contents respectively; and automatic control means operable to burn said collected vapors in a first of said burners but not the second when said vapors are of a first B.T.U. content, and responsive automatically to a change in B.T.U. content of said collected vapors to burn said collected vapors when of a second B.T.U. content in said second burner. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. Apparatus comprising:
-
a liquid dispensing system including tank means for holding a flammable liquid, hose means for dispensing said liquid, and discharge nozzle means on said hose means; adsorption chamber means through which vapors collected from the vicinity of said nozzle means during a dispensing operation are passed and containing a substance adapted to adsorb said vapors; burner means for burning vapors desorbed from said substance; a vapor pump; a first suction line leading to said vapor pump and connected to said adsorption chamber means at a location to draw air from the atmosphere through said adsorption chamber means to desorb vapors therefrom, and to then conduct the vapor laden air through said first suction line to said pump; a second suction line leading to said pump from a location near said nozzle means and acting to withdraw flammable vapors from the vicinity of said nozzle means to the pump without passage through said chamber means before reaching the vapor pump; a first discharge line leading from said vapor pump to said burner means to discharge vapors thereto without flow through said adsorption chamber means; and a second discharge line leading from said pump to said chamber means to discharge vapors thereto. - View Dependent Claims (13, 14, 15)
-
Specification