Patents
US 11822226 B2: Braking systems for actuator shafts
- Granted
- 2023-11-21
- Filed
- 2019-01-25 application 16257286
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An electromagnetic braking assembly for maintaining an actuator shaft in position, and methods for utilizing the same, are provided. The actuator shaft may include an object, e.g., an imaging lens, which is movable in accordance with movement of the shaft. The braking assembly may include a braking coil to which electricity may be applied to produce a magnetic field, a braking magnet capable of changing position as it interacts with the magnetic field, and a braking spring coupled with the magnet such that the spring changes position as the magnet changes position. When the braking spring is in one position, the spring exerts pressure on the actuator shaft substantially preventing the shaft from engaging in linear movement and thus maintaining the shaft in position. When the actuator shaft is in another position, the braking spring does not exert pressure on the shaft permitting the shaft to engage in linear movement.
Source: PVGPATDIS, file of 2026-04-10 (ipg231121.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Datalogic USA, Inc. 86 patents | US company or organization | Eugene, OR | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Joseph Mistkawi | Bologna, IT | 16 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G02B | Optical elements, systems or apparatus | G02B27/62 | PVGPATDIS, file of 2026-04-10 |
| G03B | Apparatus or arrangements for taking photographs or for projecting or viewing them; apparatus or arrangements employing analogous techniques using waves other than optical waves; accessories therefor | G03B3/10 | PVGPATDIS, file of 2026-04-10 |
| H02K | Dynamo-electric machines | H02K7/1023 | 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 |
|---|---|---|---|---|---|
| 2019-07-18 | Assignment Assignment of assignor's interest | MISTKAWI, JOSEPH signed 2019-01-08 | DATALOGIC USA, INC. EUGENE, OR | 49795/51 | 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.