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US 2019/0316982 A1Published application
Printable high pressure irreversible indicating material
AssigneeVolk Enterprises, Inc.
InventorRobert Parker
Life of this patent
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Abstract
A pressure indicator comprising a printed or coated film with micron sized particles disbursed in a transparent binder, wherein the particles change from white to transparent when exposed to high pressure.
Claims21
A pressure indicator comprising a printed or coated film with micron sized particles disbursed in a transparent binder, wherein the particles will change from white to transparent when exposed to high pressure.
(canceled)
A pressure indicator comprising a printed or coated thin film with micron sized particles disbursed in a transparent binder, wherein:
- the particles will change from non-transparent to transparent when exposed to high pressure, whereby upon exposure to the high pressure, the particles tend to flow and flatten, whereby the initial pre-pressure particles are non-translucent and the post-pressure particles are transparent;
- and
- the particle size range is from 0.1 microns to 10 microns.
Dependencies are inferred from the claim text.