Vapor pressure solid articles and methods for making and using the same

Patent metadata

Field	Value
Publication number	US-10677228-B2
Application number	US-201815996028-A
Country	US
Kind code	B2
Filing date	Jun 1, 2018
Priority date	Dec 1, 2015
Publication date	Jun 9, 2020
Grant date	Jun 9, 2020

Abstract

Disclosed are devices, systems, apparatuses, methods, products, and other implementations of vapor pressure solids. In some embodiments, a vapor pressure solid may include a one- or multi-component matrix material. In some embodiments, the multi-components matrix material is a two-part PDMS comprising a first and second matrix material. The first matrix material is capable of being mixed with one or more vaporizable fluids that causes the first matrix material to swell. The second matrix material is capable of being mixed with the swelled first matrix material to produce an actuating material. When the actuating material is heated, the one or more vaporizable fluids expand, resulting in vapors. The increased pressure applied by the vapors causes the actuating material to expand.

First claim

The invention claimed is:

1. An article of manufacture comprising:
a first matrix material capable of being mixed with one or more vaporizable fluids, wherein mixing the one or more vaporizable fluids causes the first matrix material to swell;
a second matrix material capable of being mixed with the swelled first matrix material to produce an actuating material, wherein heating the actuating material causes inflation of the actuating material based on pressure applied by vapors resulting from expansion of one or more vaporizable fluids;
a heating element, wherein the heating element is a resistor embedded in the actuating material; and
a layer of passive Polydimethysiloxane (“PDMS”) material having a first end and a second end, wherein the actuating material is formed onto the layer of passive PDMS material, and wherein actuation and contraction of the actuating material causes the article of manufacture to advance along an axis of contraction.

2. An article of manufacture comprising:
a first matrix material capable of being mixed with one or more vaporizable fluids, wherein mixing the one or more vaporizable fluids causes the first matrix material to swell;
a second matrix material capable of being mixed with the swelled first matrix material to produce an actuating material, wherein heating the actuating material causes inflation of the actuating material based on pressure applied by vapors resulting from expansion of one or more vaporizable fluids;
a heating element, wherein the heating element is a resistor embedded in the actuating material;
a layer of passive Polydimethysiloxane (“PDMS”) material having a first end and a second end, wherein the actuating material is formed onto the layer of passive PDMS material; and
a gripper comprising a first finger and a second finger, the first finger coupled to the first end of the layer of passive PDMS material and the second finger couple second end of the layer of passive PDMS material,
wherein actuation of the actuating material causes the gripper to manipulate an object.

3. An article of manufacture comprising:
a first matrix material capable of being mixed with one or more vaporizable fluids, wherein mixing the one or more vaporizable fluids causes the first matrix material to swell;
a second matrix material capable of being mixed with the swelled first matrix material to produce an actuating material, wherein heating the actuating material causes inflation of the actuating material based on pressure applied by vapors resulting from expansion of one or more vaporizable fluids;
a heating element, wherein the heating element is a resistor embedded in the actuating material;
a base;
a movable member coupled to the base, wherein the actuating material is enclosed in the movable member; and
a bar coupled to the movable member,
wherein contraction of the actuating material causes the base to advance along an axis of contraction.

4. The article of manufacture of claim 1 wherein cooling the actuating material causes contraction of the actuating material.

5. The article of manufacture of claim 1 wherein the one or more vaporizable fluids is captive in the first matrix material.

6. The article of manufacture of claim 1 wherein the first matrix material is soaked and cured in the one or more vaporizable fluids.

7. The article of manufacture of claim 1 wherein the first and second matrix materials are selected from a group consisting of silicone rubber, polymers, resins and latex.

8. The article of manufacture of claim 7 wherein the polymer of the first or second matrix materials is selected from the group consisting of Polydimethysiloxane (“PDMS”), platinum-catalyzed PDMS, and tin-catalyzed PDMS.

9. The article of manufacture of claim 1 wherein the one or more vaporizable fluids is selected from a group consisting of ethanol, acetone, water, glycerin and etheric compounds.

10. The article of manufacture of claim 1 further comprising a plurality of heating elements configured to independently heat different portions of the actuating material.

11. The article of manufacture of claim 1 further comprising one or more cooling elements configured to accelerate cooling of the actuating material.

12. The article of manufacture of claim 1 further comprising one or more conductive materials for heating the one or more vaporizable fluids.

13. The article of manufacture of claim 2 wherein cooling the actuating material causes contraction of the actuating material.

14. The article of manufacture of claim 2 wherein the one or more vaporizable fluids is captive in the first matrix material.

15. The article of manufacture of claim 2 wherein the first matrix material is soaked and cured in the one or more vaporizable fluids.

16. The article of manufacture of claim 2 wherein the first and second matrix materials are selected from a group consisting of silicone rubber, polymers, resins and latex.

17. The article of manufacture of claim 16 wherein the polymer of the first or second matrix materials is selected from the group consisting of Polydimethysiloxane (“PDMS”), platinum-catalyzed PDMS, and tin-catalyzed PDMS.

18. The article of manufacture of claim 2 wherein the one or more vaporizable fluids is selected from a group consisting of ethanol, acetone, water, glycerin and etheric compounds.

19. The article of manufacture of claim 2 further comprising a plurality of heating elements configured to independently heat different portions of the actuating material.

20. The article of manufacture of claim 2 further comprising one or more cooling elements configured to accelerate cooling of the actuating material.

21. The article of manufacture of claim 2 further comprising one or more conductive materials for heating the one or more vaporizable fluids.

22. The article of manufacture of claim 3 wherein cooling the actuating material causes contraction of the actuating material.

23. The article of manufacture of claim 3 wherein the one or more vaporizable fluids is captive in the first matrix material.

24. The article of manufacture of claim 3 wherein the first matrix material is soaked and cured in the one or more vaporizable fluids.

25. The article of manufacture of claim 3 wherein the first and second matrix materials are selected from a group consisting of silicone rubber, polymers, resins and latex.

26. The article of manufacture of claim 25 wherein the polymer of the first or second matrix materials is selected from the group consisting of Polydimethysiloxane (“PDMS”), platinum-catalyzed PDMS, and tin-catalyzed PDMS.

27. The article of manufacture of claim 3 wherein the one or more vaporizable fluids is selected from a group consisting of ethanol, acetone, water, glycerin and etheric compounds.

28. The article of manufacture of claim 3 further comprising a plurality of heating elements configured to independently heat different portions of the actuating material.

29. The article of manufacture of claim 3 further comprising one or more cooling elements configured to accelerate cooling of the actuating material.

30. The article of manufacture of claim 3 further comprising one or more conductive materials for heating the one or more vaporizable fluids.

Assignees

• Univ Columbia

Inventors

• Stack Kenneth William
• Miriyev Aslan
• Lipson Hod

Classifications

• B29C51/10

  Forming by pressure difference, e.g. vacuum · CPC title

• B29C51/002

  characterised by the choice of material · CPC title

• B29K2101/12

  Thermoplastic materials · CPC title

• B29K2995/0063

  Density · CPC title

• B29K2105/0061

  Gel or sol · CPC title