Moisture sensor and associated process

• US 20020124635A1
• Filed: 05/11/2001
• Published: 09/12/2002
• Est. Priority Date: 02/09/2001
• Status: Abandoned Application

• Current Assignee: Steven A. Hoffman
• Original Assignee: Steven A. Hoffman
• Inventors: Hoffman, Steven A.
• Application Number:
  US09/853,222
• Publication Number:
  US 20020124635A1
• Time in Patent Office: Days
• US Class Current: 73/73
• CPC Class Codes: G01N 21/78 producing a change of colour
• CPC Class Codes: G01N 21/81 Indicating humidity
• CPC Class Codes: G01N 31/222 for investigating moisture content

Abstract

A moisture sensor is disclosed that includes a capsule, having a bottom portion and a top portion and an inlet for receiving fluid located at the top portion of the capsule, wherein the capsule is capable of containing at least one chemical that changes appearance in the fluid'"'"'s presence. There is also a process for utilizing a moisture sensor that is disclosed. The process includes inserting at least one chemical that changes appearance when a fluid is present in a capsule, wherein the capsule has a bottom portion and a top portion and an inlet for receiving fluid located at the top portion of the capsule, and inserting the capsule into a ceiling where the bottom portion of the capsule is located below the ceiling. There can be a single chemical or substance that changes color in the presence of fluid or an upper layer and a lower layer of chemical where the upper layer goes from a solid to a liquid permeating the lower layer of chemical and changing overall appearance of the lower layer of chemical that is visible through the capsule as well as numerous chemical combinations.

Claims

1. A moisture sensor comprising:

a capsule, having a bottom portion and a top portion and an inlet for receiving fluid located at said top portion of said capsule, wherein said capsule is capable of containing at least one chemical that changes appearance in said fluid'"'"'s presence.

2. The moisture sensor, as set forth in claim 1, further including a wick located within said capsule.

3. The moisture sensor, as set forth in claim 2, wherein said wick includes fibrous material.

4. The moisture sensor, as set forth in claim 3, wherein said fibrous material includes a filter.

5. The moisture sensor, as set forth in claim 3, wherein said fibrous material includes a string.

6. The moisture sensor, as set forth in claim 1, further including a gas exit tube located within said capsule, wherein said gas exit tube includes an opening located at said top portion of said capsule.

7. The moisture sensor, as set forth in claim 1, wherein said fluid includes water.

8. The moisture sensor, as set forth in claim 1, wherein said capsule is cylindrical.

9. The moisture sensor, as set forth in claim 1, wherein said bottom portion of said capsule is transparent.

10. The moisture sensor, as set forth in claim 1, wherein said bottom portion of said capsule is translucent.

11. The moisture sensor, as set forth in claim 1, wherein said bottom portion of said capsule includes an outwardly extending flange member integral to said bottom portion of said capsule.

12. The moisture sensor, as set forth in claim 1, wherein said bottom portion of said capsule includes an outwardly extending flange member attached to said bottom portion of said capsule.

13. The moisture sensor, as set forth in claim 1, wherein said at least one chemical is a unitary chemical that changes color in a presence of water.

14. The moisture sensor, as set forth in claim 1, wherein said at least one chemical includes an upper chemical layer and a lower chemical layer.

15. The moisture sensor, as set forth in claim 14, wherein said upper chemical layer includes a food coloring and said lower chemical layer includes a salt.

16. The moisture sensor, as set forth in claim 14, wherein said upper chemical layer includes a food coloring and said lower chemical layer includes a gelatin.

17. The moisture sensor, as set forth in claim 1, further including an outer capsule, wherein said capsule is replaceably mounted within said outer capsule.

19. The process for utilizing a moisture sensor according to claim 18, further including utilizing a wick located within said capsule, wherein said wick receives said fluid from said inlet located at said top portion of said capsule and transfers said fluid to said at least one chemical that changes appearance when a fluid is present in a capsule.

20. The process for utilizing a moisture sensor according to claim 19, wherein said wick includes fibrous material.

21. The process for utilizing a moisture sensor according to claim 20, wherein said fibrous material includes a filter.

22. The process for utilizing a moisture sensor according to claim 20, wherein said fibrous material includes a string.

23. The process for utilizing a moisture sensor according to claim 18, further including utilizing an exit tube located within said capsule, wherein said gas exit tube has an opening located at said top portion of said capsule for releasing gas from said at least one chemical that changes appearance when said fluid is present.

24. The process for utilizing a moisture sensor according to claim 18, wherein said capsule is cylindrical.

25. The process for utilizing a moisture sensor according to claim 18, wherein said bottom portion of said capsule includes an outwardly extending flange member.

26. The process for utilizing a moisture sensor according to claim 18, wherein said step of inserting at least one chemical that changes color when fluid is present in said capsule further includes utilizing an upper chemical layer and a lower chemical layer.

27. The process for utilizing a moisture sensor according to claim 26, wherein said upper chemical layer includes a food coloring and said lower chemical layer includes salt.

28. The process for utilizing a moisture sensor according to claim 26, wherein said upper chemical layer includes a food coloring and said lower chemical layer includes a gelatin.

29. The process for utilizing a moisture sensor according to claim 18, further including replaceably mounting said capsule within an outer capsule.

18. A process for utilizing a moisture sensor comprising:

inserting at least one chemical that changes appearance when a fluid is present in a capsule, wherein said capsule has a bottom portion and a top portion and an inlet for receiving fluid located at said top portion of said capsule; and

inserting said capsule into a ceiling where said bottom portion of said capsule is located below said ceiling.