Patents
US 12326153 B2: Self cleaning cutter, cutting assembly, and pump
- Granted
- 2025-06-10
- Filed
- 2023-11-02 application 18386313
- Type
- Utility · 15 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A rotatable cutter, which may be used in a cutting assembly and in a grinder pump, is provided comprising at least a first cutting blade and a second cutting blade. Each of the first and the second cutting blades include a central region and a distal region. A protruding nub extends axially outwardly from the distal region of at least one of the first and second cutting blades. The rotatable cutter is engageable with a rotating drive shaft, which may also be engaged with an impeller of the pump.
Source: PVGPATDIS, file of 2026-04-10 (ipg250610.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Liberty Pumps, Inc. 23 patents | US company or organization | Bergen, NY | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Donald M. Pohler | North Chili, NY | 14 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| F04D | Non-positive-displacement pumps | F04D29/2288 | 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 |
|---|---|---|---|---|---|
| 2024-01-16 | Assignment Assignment of assignor's interest | POHLER, DONALD M. signed 2024-01-09 | LIBERTY PUMPS, INC. BERGEN, NY | 66139/165 | 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.