Spraying liquids

• US 3,231,134 A
• Filed: 08/13/1962
• Issued: 01/25/1966
• Est. Priority Date: 09/01/1961
• Status: Expired due to Term

• Current Assignee: Bernard Webster
• Original Assignee: Bernard Webster
• Inventors: Webster, Bernard
• Application Number:
  US04/218,478
• Time in Patent Office: 1,261 Days
• US Class Current: 222/1
• CPC Class Codes: B05B 7/0018 with devices for making foam
• CPC Class Codes: B05B 7/0416 with arrangements for mixing one gas and one liquid
• CPC Class Codes: B05B 9/01 Spray pistols, discharge devicesB05B9/03 takes precedence
• CPC Class Codes: B08B 2203/0217 Use of a detergent in high pressure cleaners; arrangements for supplying the same
• CPC Class Codes: B08B 3/026 Cleaning by making use of hand-held spray guns; Fluid preparations therefor
• CPC Class Codes: B08B 3/028 Spray guns
• CPC Class Codes: C11D 3/0094 High foaming compositions

Claims

1. A METHOD OF APPLYING A FOAMED MATERIAL TO A SURFACE COMPRISING FEEDING A FOAMABLE LIQUID AND AT LEAST ONE OTHER LIQUID UNDER PRESSURE TO A FOAMING CHAMBER ELONGATED IN THE DIRECTION OF FLOW AND CONTAINING OVER A MAJOR PORTION OF ITS LENGTH A FOAM INDUCING MATERIAL HAVING A MULTIPLICITY OF TORTUOUS FINE PASSAGES THERETHROUGH, SEPARATELY FEEDING A GAS TO THE CHAMBER, THE RATE OF FLOW AND PRESSURE OF THE LIQUIDS AND GAS IN THE CHAMBER BEING SUCH AS TO FORCE THE FOAMABLE LIQUID THROUGH SAID PASSAGES CONTINUOUSLY TO EFFECT MOMENTUM CHANGES AND TO CAUSE FOAMING OF THE FOAMABLE LIQUID BY DISPERSAL OF THE GAS AS A PLURALITY OF BUBBLES THEREIN, AND DISCHARGING THE FOAMED LIQUID ON TO A SURFACE DIRECTLY FROM THE CHAMBER WITHOUT THE ADDITION OF FURTHER MATERIALS THROUGH A CLOSELY ASSOCIATED SPRAYING DEVICE IN DIRECTION COMMUNICATION WITH THE FOAMING CHAMBER.

12. AN APPARATUS FOR SUPPLYING A MIXTURE OF LIQUIDS IN A PREDETERMINED VOLUMETRIC RATIO TO A DELIVERY POINT