Patents
US 12281626 B1: Piston body for an engine having surface features for interacting with boundary layer
- Granted
- 2025-04-22
- Filed
- 2024-07-12 application 18771335
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A linear electric machine includes a shaft and at least one piston assembly operably coupled with the shaft. The piston assembly includes a piston, a piston body, and an expansion chamber. The piston body defines a dome structure at the expansion chamber. The piston is a domed piston corresponding to the dome structure. The linear electric machine also includes a heater body positioned at an outer end of the expansion chamber adjacent to the dome structure. The piston body further defines an exterior surface corresponding to a shape of the dome structure. The exterior surface includes a plurality of surface features protruding therefrom and is arranged between the heater body and the dome structure. The plurality of surface features decrease a heat load across the exterior surface of the piston body.
Source: PVGPATDIS, file of 2026-04-10 (ipg250422.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Hyliion Holdings Corp. 56 patents | US company or organization | Cedar Park, TX | HYLIION HOLDINGS CORP. State business registration EXACT high confidence: identical full name and state HYLIION HOLDINGS CORP. SEC filer EXACT medium confidence: identical full name, one of each nationally | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Kevin Michael Van de Voorde | Cincinnati, OH | 1 | PVGPATDIS, file of 2026-04-10 | |
| Victor Luis Marrero Ortiz | Humacao, PR | 6 | PVGPATDIS, file of 2026-04-10 | |
| Joshua Tyler Mook | Cincinnati, OH | 77 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| F02F | Cylinders, pistons or casings, for combustion engines; arrangements of sealings in combustion engines | F02F3/02 | PVGPATDIS, file of 2026-04-10 |
| B33Y | Additive manufacturing, i.e. manufacturing of three-dimensional [3d] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3d printing, stereolithography or selective laser sintering | B33Y80/00 | 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 |
|---|---|---|---|---|---|
| 2024-07-12 | Assignment Assignment of assignor's interest | VAN DE VOORDE, KEVIN MICHAEL signed 2024-07-12 MARRERO ORTIZ, VICTOR LUIS signed 2024-06-11 MOOK, JOSHUA TYLER signed 2024-06-14 | HYLIION HOLDINGS CORP. CEDAR PARK, TX | 67977/134 | PASDL, file of 2026-10-15 |
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.