Disposable treatment article having a responsive system

• US 6,433,244 B1
• Filed: 06/29/1999
• Issued: 08/13/2002
• Est. Priority Date: 06/29/1998
• Status: Expired due to Term

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Schmidt, Mattias, Roe, Donald C., Allen, Patrick J., Ehrnsperger, Bruno J.
• Primary Examiner(s): Weiss, John G.
• Assistant Examiner(s): STEPHENS, JACQUELINE F
• Application Number:
  US09/342,785
• Time in Patent Office: 1,141 Days
• Field of Search: 604/380, 604/359, 604/360, 604/368, 604/379, 604/385.01, 604/362, 604/361, 604/367, 604/378, 604/385.101, 604/358, 604/385.12, 401/271, 152/08, 152/091, 152/30, 152/444, 152/28
• US Class Current: 604/361
• CPC Class Codes: A61F 13/42 with wetness indicator or alarm
• CPC Class Codes: A61F 13/495 with faecal cavity
• CPC Class Codes: A61F 13/82 with means for attaching to the body
• CPC Class Codes: A61F 2013/8473 for diagnostic purposes
• CPC Class Codes: A61F 2013/8479 including electric or magnetic devices
• CPC Class Codes: A61L 15/18 containing inorganic materials
• CPC Class Codes: A61L 15/20 containing organic materials
• CPC Class Codes: A61L 15/24 Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof A61L15/225 takes precedence
• CPC Class Codes: A61L 15/26 Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof A61L15/225 takes precedence
• CPC Class Codes: A61L 15/56 Wetness-indicators or colourants
• CPC Class Codes: G01N 33/5308 for analytes not provided for elsewhere, e.g. nucleic acids, uric acid, worms, mites

Abstract

Disposable articles for treating objects such as surfaces, devices, persons, contaminants, and the like or for treating substances disposed on, in, or in proximity to such objects having a responsive system. The responsive system may respond continuously or discontinuously. A continuous responsive system of the present invention further includes a feedback control loop. A discontinuous responsive system of the present invention may include either a feedback control loop or an open loop.

Claims

1. A disposable article suitable for treating an object comprising a responsive system including:

(i) a sensor operatively connected to said article, said sensor being adapted to detect an input, and

(ii) an actuator operatively connected to said sensor, said actuator being adapted to perform a responsive function upon said input, said actuator comprising a distinct component from said sensor.

2. The disposable article of claim 1, wherein said responsive system further comprises a feedback control loop in which said controller is adapted to allow said actuator to perform said responsive function upon said input when said sensor detects said input.

3. The disposable article of claim 1, wherein said actuator performs said responsive function in a continuous manner.

4. The disposable article of claim 1, wherein said actuator performs said responsive function in a discontinuous manner.

5. The disposable article of claim 4, wherein said discontinuous responsive system comprises a step-type responsive system.

6. The disposable article of claim 4, wherein said discontinuous responsive function is performed such that said discontinuous responsive system has an output function that may be modeled by the equation:

${\frac{<br><br>R}{<br><br>I}<br><br>}_{I=I_0}=k<br><br>\frac{\left(\mathrm{\Delta <br><br>}<br><br>\text{\hspace{1em}<br><br>}<br><br>R_T\right)}{\left(\mathrm{\Delta <br><br>}<br><br>\text{\hspace{1em}<br><br>}<br><br>I_T\right)},$

wherein said constant k is greater than or equal to a value selected from the group of about 2.0, about 3.0, about 5.0, about 10.0 and about 100.

7. The disposable article of claim 4, wherein said discontinuous responsive function is performed such that said discontinuous responsive system has an output function that may be modeled by a control system having a transfer function of the equation:

KG(s)=K/(Ts+1)ⁿ, wherein said n value is greater than or equal to a value selected from the group of;

about 25, about 50 and about 100.

8. The disposable article of claim 1 further comprising a controller, said controller being adapted to receive a signal from said sensor and allow said actuator to perform said responsive function when said sensor detects said input.

9. The disposable article of claim 8, wherein said controller is a distinct component from said sensor and said actuator.

10. The disposable article of claim 1, wherein said feedback control loop is selected from the group consisting of:

a modulating feedback control loop and a non-modulating feedback control loop.

11. The disposable article of claim 1 further comprising a second sensor, said second sensor is adapted to detect a second input.

12. The disposable article of claim 11, wherein said actuator is adapted to perform said responsive function when said sensor detects said input or said second sensor detects said second input.

13. The disposable article of claim 1, wherein said responsive function comprises one or more of the group selected from transforming potential energy into kinetic energy, delivering a material, removing a material, and isolating a material.

14. The disposable article of claim 1, wherein said actuator is adapted, to transform a potential energy in order to perform said responsive function, said potential energy being selected from one or more of the group of stored mechanical energy, compressive mechanical energy, torsional mechanical energy, stored chemical energy, stored electrical energy, and a battery.

15. The disposable article of claim 14, wherein said actuator delivers one or more active ingredient selected from the group consisting of antimicrobials, antifungals, biologically active agents, physiologically active agents, chemical reactants, pH buffers, pH modifiers, cleaning agents, conditioning agents, cosmetics, drugs, absorbent materials, and rheology modifiers.

16. The disposable article of claim 15 wherein said active ingredient is selected from one or more of the group consisting of enzyme inhibitors and fecal modifying agents.

17. The disposable article according to claim 1, wherein the actuator comprises an isolation device.

18. The disposable article of claim 1, wherein said sensor is selected from the group of an electrical sensor, a mechanical sensor, a chemical sensor, a biosensor, and a closed system liquid transport member.

19. The disposable article of claim 1, wherein said actuator is selected from the group of:

an electrical pump, an electrically sensitive gel, and an electrically activated valve.

20. The disposable article of claim 1, wherein said input is selected from the group of water, pH, electrical activity, a microorganism, and an enzyme.

21. The disposable article of claim 1, wherein said article is a cleaning article.

22. The disposable article of claim 1, wherein said article further comprises a planar substrate, wherein said responsive system is disposed on or incorporated into said substrate.

23. The disposable article of claim 1, wherein said article is selected from the group consisting of, tissues, towels, wipes, sponges, mops, and gloves.

24. The disposable article of claim 1, wherein said sensor is proactive.

25. The disposable article of claim 1 further comprising a controller, said controller being adapted to receive a signal from said sensor and allow said actuator to perform said responsive function when a threshold level of said input has been met.

26. A disposable article suitable for treating an object comprising:

(a) a responsive system including;

(i) a sensor operatively connected to said article, said sensor being adapted to detect an input, and

(ii) an actuator operatively connected to said sensor, said actuator being adapted to perform a responsive function upon said input, said actuator comprising a distinct component from said sensor; and

(b) a substrate, wherein at least a part of said responsive system is operatively connected to said substrate.

27. A disposable article according to claim 26 wherein said substrate is a planar substrate.

28. A disposable article according to claim 26 wherein said responsive system is discontinuous.

29. A disposable article suitable for treating an object comprising:

(a) a responsive system including;

(i) a sensor operatively connected to said article, said sensor being adapted to detect an input, and

(ii) an actuator operatively connected to said sensor, said actuator being adapted to perform a responsive function upon said input, said actuator comprising a distinct component from said sensor; and

(b) a substrate, wherein at least a part of said responsive system is operatively connected to said substrate;

wherein said responsive system comprises compression material in a compressed state prior to and upon actuation forms a three dimensional structure.

30. A disposable article according to claim 29, wherein said three dimensional structure formed is suitable for isolating a material.

33. A disposable article according to claim 29 wherein said responsive system is discontinuous.

31. A disposable article suitable for treating an object comprising:

(a) a responsive system including;

(i) a sensor operatively connected to said article, said sensor being adapted to detect an input, and

(ii) an actuator operatively connected to said sensor, said actuator being adapted to perform a responsive function upon said input, said actuator comprising a distinct component from said sensor; and

(b) a substrate, wherein at least a part of said responsive system is operatively connected to said substrate;

wherein said actuator further comprises a treatment material for treating said object, whereby said treatment material is released upon actuation of the responsive system.

32. A disposable article according to claim 31, wherein said actuator comprises a compression material and treatment material disposed on in said compression material, whereby upon actuation said compression material releases said treatment material.

34. A disposable article according to claim 31 wherein said responsive system is discontinuous.