Controllable release of a volatile substance

• US 7,149,417 B2
• Filed: 02/19/2004
• Issued: 12/12/2006
• Est. Priority Date: 02/19/2004
• Status: Expired due to Fees

• Current Assignee: Microlin LLC
• Original Assignee: Microlin LLC
• Inventors: Wold, Truman, Joshi, Ashok V.
• Primary Examiner(s): PAIK, SANG YEOP
• Application Number:
  US10/708,253
• Publication Number:
  US 20050185940A1
• Time in Patent Office: 1,027 Days
• Field of Search: 392/386, 392/387, 392/390, 392/394, 392/402, 392/403, 239/34, 239/37, 239/38, 239/42, 239/43, 239/53, 239/54, 239/55, 239/56, 239/57
• US Class Current: 392/390
• CPC Class Codes: A01M 1/2033 using a fan
• CPC Class Codes: A01M 1/2044 Holders or dispensers for liquid insecticide, e.g. using wicks
• CPC Class Codes: A01M 1/2072 combined with a fan
• CPC Class Codes: A01M 1/2077 using an electrical resistance as heat source A01M1/2083 takes precedence
• CPC Class Codes: A61L 9/02 using substances evaporated in the air by heating or combustion
• CPC Class Codes: A61L 9/03 Apparatus therefor
• CPC Class Codes: A61L 9/04 using substances evaporated in the air without heating
• CPC Class Codes: A61L 9/12 Apparatus, e.g. holders, therefor
• CPC Class Codes: A61L 9/122 comprising a fan

Abstract

The present invention is directed to a device for releasing a controlled amount of a volatile substance into an environment while isolating the non-released amount of such a substance from the environment. The device includes a housing having an interior region, a volatile substance cartridge associated with the housing, wherein the cartridge can be replaced, or, alternatively, refilled with a desired fluid. A mechanism is provided for releasing a pre-determined amount of fluid from the housing, which is activated, as desired, by a user of the device.

Claims

1. A device for releasing a volatile substance into an environment comprising:

a housing having an interior region, an outer surface, and an discharge opening, wherein the housing includes a volatile substance cartridge having an outlet for containing a volatile substance therewithin;

means for orienting the device such that gravity forces the volatile substance toward the outlet of the cartridge and into a chamber configured to temporarily retain the volatile substance; and

means for moving the chamber such that an opening in the chamber is in communication with the discharge opening such that a fixed amount of the volatile substance dispenses onto an emanator, and wherein the volatile substance in the cartridge of the housing is substantially protected from exposure to the outside environment, said chamber being movable into a position for receiving volatile substance from the outlet will preventing said volatile substance from dispensing onto the emanator.

2. A device for releasing a volatile substance into an environment comprising:

a housing having an interior region, an outer surface, and an discharge opening, wherein the housing includes a volatile substance cartridge for containing a fluid therewithin, the cartridge having an outlet;

a chamber for temporarily holding the volatile substance the chamber having a first opening for receiving volatile substance from the cartridge outlet; and

a controller for moving the chamber such that a second opening in the chamber is in communication with the discharge opening such that a fixed amount of the volatile substance dispenses onto an emanator, the controller being movable into a position for receiving volatile substance from the outlet will preventing said volatile substance from dispensing onto the emanator.

3. The device of claim 2, wherein the housing and the controller isolate the volatile substance from the outside air and substantially prevent loss of the volatile substance until and after a desired release.

4. The device of claim 2, wherein the housing, controller and emanator can operate with large swings in temperature and pressure of the outside environment.

5. The device according to claim 2, wherein the controller further comprises a rotatable valve for releasing a fixed amount of volatile substance onto an emanator to be released over time into the surrounding environment.

6. The device according to claim 2, further including seals for protecting volatile substance in the cartridge from exposure to the outside environment.

7. The device according to claim 2, wherein the controller comprises an electrically operated valve which releases fixed amounts of the volatile substance onto the emanator while isolating the remaining volatile substance in the housing from the outside environment such that there is substantially no loss of volatile substance until the chamber is moved.

8. The device according to claim 2, wherein the device is configured for use in automobiles, vehicles, airplanes, trains or other room spaces where large temperature and pressure swings exist.

9. The device according to claim 2, wherein the emanator is selected from the group consisting of porous plastic, cellulose pads, porous glass, ceramic pads, heated pads, piezo electric pads or ultrasonic pads, fans and combinations thereof.

10. The device according to claim 2, wherein the housing is constructed of a substantially rigid material having means for allowing air to fill the space when a predetermined amount of volatile substance controllably leaves the reservoir.

11. The device according to claim 2, wherein the volatile substance is selected from the group comprising fragrances, medicaments, insect repellants, cleaning chemicals and combination thereof.

12. The device according to claim 2, wherein the controller comprises a frame with a shuttle inside, the shuttle defining the chamber, the controller further comprising a plurality of seals surrounding the shuttle, and a biasing spring in contact with the shuttle.

13. The device according to claim 2, wherein the first and second opening of the chamber are the same opening.

14. The device according to claim 2, wherein the controller comprises a rotating pin.

15. The device according to claim 14, wherein the rotating pin includes mechanical stops.

16. The device according to claim 14, wherein the rotating pin has a spring return.

17. The device according to claim 2, wherein the emanator further comprises a surface to receive the fluid, the surface being an absorbent pad.

18. The device according to claim 2, wherein the emanator further comprises a surface to receive the fluid, the surface being a hard surface.

19. The device according to claim 2, further comprising a heating element in communication with the emanator for increasing volatilization.

20. The device according to claim 2, further comprising means for increasing airflow adjacent the emanator.

21. The device according to claim 2, wherein the cartridge is replaceable.

22. The device according to claim 2, wherein the cartridge is refillable.

23. A method of releasing a volatile substance into an outside environment comprising the steps of:

storing a volatile substance in a reservoir;

releasing a fixed dose of the volatile substance from the reservoir into a chamber;

temporarily holding the volatile substance in the chamber;

moving the chamber by actuating a controller such that the volatile substance exits the chamber onto an emanator; and

vaporizing the fixed dose of the volatile substance into the outside.

24. The method of claim 23, wherein the step of releasing volatile substance into a chamber comprises the step of activating the controller from a first position to a second position while preventing release of the volatile substance onto the emanator.

25. The method of claim 23, wherein the step of moving the chamber is selected from the steps of manually or electronically moving the chamber.