Patents
US 12187543 B2: Self-clearing tray conveyor
- Granted
- 2025-01-07
- Filed
- 2021-06-17 application 18011055
- Type
- Utility · 16 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A magnetic tray for a tray conveyor has a permanent-magnet array producing a magnetic field that interacts with an electromagnetic flux wave produced by a linear-motor stator to propel the tray in a conveying direction. The tray includes a top conveying platform supported on a mover housing the permanent-magnet array and a tray-clearing tool that removes conveyed articles or debris from the platform. The tray-clearing tool is powered by the stator.
Source: PVGPATDIS, file of 2026-04-10 (ipg250107.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Laitram, L.L.C. 353 patents | US company or organization | Harahan, LA | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Bryant G. Ragan | Metairie, LA | 49 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| B65G | Transport or storage devices, e.g. conveyors for loading or tipping, shop conveyor systems or pneumatic tube conveyors | B65G35/06 | PVGPATDIS, file of 2026-04-10 |
| B60L | Propulsion of electrically-propelled vehicles ; supplying electric power for auxiliary equipment of electrically-propelled vehicles ; electrodynamic brake systems for vehicles in general ; magnetic suspension or levitation for vehicles; monitoring operating variables of electrically-propelled vehicles; electric safety devices for electrically-propelled vehicles | B60L13/03 | PVGPATDIS, file of 2026-04-10 |
| Y02P | Climate change mitigation technologies in the production or processing of goods | Y02P90/60 | 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 |
|---|---|---|---|---|---|
| 2022-12-29 | Assignment Assignment of assignor's interest | RAGAN, BRYANT G. signed 2020-07-01 | LAITRAM, L.L.C. HARAHAN, LA | 62238/208 | 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.