Patents
US 12371775 B2: Piston crank agitation mechanism for physical vapor deposition conformal coatings on powder
- Granted
- 2025-07-29
- Filed
- 2022-11-02 application 17979392
- Type
- Utility · 19 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Various implementations include a device for deposition of conformal coatings. The device includes a powder container, a connecting rod, and a crankshaft. The powder container has a first side configured to contain a powder and a second side. The connecting rod has a first end directly hingedly coupled to the second side of the powder container and a second end. The crankshaft has a longitudinal axis, a main shaft portion extending along the longitudinal axis, and a cam portion radially offset from and rotatable about the longitudinal axis. The second end of the connecting rod is directly rotatably coupled to the cam portion. Rotation of the crankshaft about the longitudinal axis causes the second end of the connecting rod to rotate about the longitudinal axis, causing the powder container to linearly oscillate between a first position and a second position.
Source: PVGPATDIS, file of 2026-04-10 (ipg250729.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ALABAMA 193 patents | US company or organization | Tuscaloosa, AL | The University of Alabama College or university FUZZY medium confidence: same name (governing-board words and legal endings aside) and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Jonathan Lake Priedeman | Northport, AL | 1 | PVGPATDIS, file of 2026-04-10 | |
| Gregory Bruce Thompson | Tuscaloosa, AL | 1 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| C23C | Coating metallic material; coating material with metallic material; surface treatment of metallic material by diffusion into the surface, by chemical conversion or substitution; coating by vacuum evaporation, by sputtering, by ion implantation or by chemical vapour deposition, in general | C23C14/16 | PVGPATDIS, file of 2026-04-10 |
| H01J | Electric discharge tubes or discharge lamps | H01J37/32715 | PVGPATDIS, file of 2026-04-10 |
| F16C | Shafts; flexible shafts; elements or crankshaft mechanisms; rotary bodies other than gearing elements; bearings | F16C3/06 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2023-01-03 | Assignment Assignment of assignor's interest | PRIEDEMAN, JONATHAN LAKE signed 2021-11-10 THOMPSON, GREGORY BRUCE signed 2021-11-10 | THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ALABAMA TUSCALOOSA, AL | 62258/279 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.