Air flow control system with replaceable cartridge
AssigneeVaportek, Inc.
InventorsJohn D. Bryson, John D. Bryson, Jr.
Life of this patent
Estimating the term…
Abstract
An air treatment system has a removable and replaceable cartridge, the cartridge having a cylindrical plastic canister, and having a liquid-permeable vaporizing element disposed in the canister. The canister is located on one side in a cradle inside a housing where air flow is controlled between inlet and outlet ports by a pivoting frame member. A slider is moved up and down outside the housing to simultaneously move a pair of arms inside the housing into closed, partially open or fully open positions relative to the inlet and outlet ports. The canister has ports of special configuration and a baffle is placed in the canister to assist radial air flow and assure that air flows over the coiled air vaporizing element.
Claims16
An air treatment system of the type having a portable cartridge with a cylindrical canister, having a liquid-containing and liquid-permeable air treatment element disposed in the canister, and the canister having walls, including opposite end walls, that are impermeable to liquid from the air treatment element, wherein the air treatment system further comprises:
- the canister having an inlet port and outlet port located in the opposite end walls of the canister;
- a cradle for supporting the cylindrical canister in a lying-down position substantially parallel to an external supporting surface for the air treatment system;
- a housing cover for the air treatment system that can be moved between a closed position and an open position to expose the cradle for removal and replacement of the canister thereon;
- and
- an air flow control mechanism having a pair of arms spaced longitudinally relative to the canister and crossing the inlet and outlet ports, respectively, the pair of arms being pivotable around an axis substantially parallel to a longitudinal axis of the canister to move between a first position simultaneously closing the inlet and outlet ports to a second position simultaneously opening the inlet and outlet ports.
An air treatment cartridge of the type for installation in an air treatment system, the cartridge having a cylindrical canister, having a liquid-containing and liquid-permeable air treatment element disposed in the canister, and the canister having walls, including opposite end walls, that are impermeable to liquid from the air treatment element, and wherein the air treatment cartridge further comprises:
- a cover forming one of the opposite end walls of the canister, the cover having an inlet port therein for receiving air into the canister;
- another of the opposite end walls having an outlet port to allow air flow out of the canister;
- wherein the inlet port is circular with a peripheral lip that is contacted by a first closure when the inlet port is partially or fully closed;
- wherein the outlet port has a circular peripheral lip that is contacted by a second closure when the outlet port is partially or fully closed;
- and
- wherein the outlet port is defined by two arcuate webs that form a V-shaped opening having arcuate edges.
An air treatment cartridge of the type for installation in an air treatment system, the cartridge having a cylindrical canister, having a liquid-containing and liquid-permeable air treatment element disposed in the canister, and the canister having walls, including opposite end walls, that are impermeable to liquid from the air treatment element, wherein the air treatment cartridge further comprises:
- a cover forming one of the opposite end walls of the canister, the cover having an inlet port therein for receiving air into the canister, and the cover having means for locating one of the opposite end walls relative to a support in the air treatment system;
- another one of the opposite end walls having an outlet port to allow air flow out of the canister;
- the one of the opposite end walls having the outlet port also forming a keyway for receiving a key projection within the air treatment system to locate the cartridge both longitudinally and rotationally in the air treatment system.
Dependencies are inferred from the claim text.