Surface cleaning apparatus
First Claim
Patent Images
1. A surface cleaning apparatus, comprising:
- a heated vapor generator adapted to heat fluid to approximately 212°
F. to generate steam;
a supply tank for containing a supply of fluid;
a vapor nozzle configured to dispense steam to the surface to be cleaned;
a liquid spray nozzle configured to dispense liquid to a surface to be cleaned;
a vapor conduit in fluid communication with the heated vapor generator and the vapor nozzle; and
a liquid conduit in fluid communication with the supply tank and the liquid spray nozzle, wherein a first portion of the liquid conduit is located within the vapor conduit and is in heat exchange relationship with the vapor conduit and a second portion of the liquid conduit is located exteriorly of the vapor conduit, where the second portion of the liquid conduit is distal to the supply tank relative to the first portion of the liquid conduit;
wherein the liquid spray nozzle is located at a distal end of the liquid conduit and exteriorly of the vaport conduit and the vapor nozzle.
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Accused Products
Abstract
A surface cleaning apparatus includes a heated vapor generator for generating steam and a supply tank for containing a supply of fluid. A liquid conduit that is in fluid communication with the supply tank is in heat exchange relationship with a vapor conduit that is in fluid communication with the heated vapor generator.
37 Citations
16 Claims
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1. A surface cleaning apparatus, comprising:
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a heated vapor generator adapted to heat fluid to approximately 212°
F. to generate steam;a supply tank for containing a supply of fluid; a vapor nozzle configured to dispense steam to the surface to be cleaned; a liquid spray nozzle configured to dispense liquid to a surface to be cleaned; a vapor conduit in fluid communication with the heated vapor generator and the vapor nozzle; and a liquid conduit in fluid communication with the supply tank and the liquid spray nozzle, wherein a first portion of the liquid conduit is located within the vapor conduit and is in heat exchange relationship with the vapor conduit and a second portion of the liquid conduit is located exteriorly of the vapor conduit, where the second portion of the liquid conduit is distal to the supply tank relative to the first portion of the liquid conduit; wherein the liquid spray nozzle is located at a distal end of the liquid conduit and exteriorly of the vaport conduit and the vapor nozzle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification