Patents
US 12331758 B1: Grinder pump and cutting assemblies thereof
- Granted
- 2025-06-17
- Filed
- 2024-04-15 application 18635953
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A grinder pump comprising a volute housing and a cutting assembly including a cutter plate comprised of a mounting flange and a cutting disc. The volute housing has a mounting shoulder that is joined to the mounting flange of the cutter plate. The mounting flange includes a mounting surface joined to the mounting shoulder of the volute housing. The mounting flange is comprised of an outer side wall, an inner region, and an inner side wall. The cutting disc is bounded by an inner surface, an outer surface, and a lateral side wall, and includes an outer region contiguous with the inner region of the mounting flange. The inner surface of the cutting disc and the inner side wall of the mounting flange form a cylindrical recess in the cutter plate.
Source: PVGPATDIS, file of 2026-04-10 (ipg250617.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 | F04D7/045 | PVGPATDIS, file of 2026-04-10 |
| B02C | Crushing, pulverising, or disintegrating in general; milling grain | B02C18/0092 | 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 |
|---|---|---|---|---|---|
| 2024-06-04 | Assignment Assignment of assignor's interest | POHLER, DONALD M. signed 2024-04-26 | LIBERTY PUMPS, INC. BERGEN, NY | 67614/153 | 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.