Patents
US 10823169 B2: Gear pump with gear having interspersed vanes
- Granted
- 2020-11-03
- Filed
- 2017-11-20 application 15817961
- Type
- Utility · 18 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A pump fluid driving apparatus includes a housing having a chamber, with two gears mounted within the chamber. The housing includes a first rounded wall section and a second rounded wall section, the first and second rounded wall sections defining at least a portion of the chamber. The gears have teeth located about their respective peripheries and operatively positioned with the teeth of the first gear and the teeth of the second gear intermeshed. The teeth include slotted teeth and solid teeth arranged with uniform spacing in a repeating pattern about the periphery of each of the gears, with each of the slotted teeth having a vane slot and a radially extending vane extending from the vane slot, and each radially extending vane being movable within the respective vane slot and being configured to contact the respective first or second rounded wall sections.
Source: PVGPATDIS, file of 2026-04-10 (ipg201103.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| ROPER PUMP COMPANY, LLC 17 patents | US company or organization | Commerce, GA | ROPER PUMP COMPANY LLC State business registration EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| William D. Flavelle | Hoschton, GA | 3 | PVGPATDIS, file of 2026-04-10 | |
| Michael Andrew Ingram | Oakwood, GA | 5 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| F04C | Rotary-piston, or oscillating-piston, positive-displacement machines for liquids ; rotary-piston, or oscillating-piston, positive-displacement pumps | F04C2/344 | PVGPATDIS, file of 2026-04-10 |
| F01C | Rotary-piston or oscillating-piston machines or engines | F01C19/005 | 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 |
|---|---|---|---|---|---|
| 2026-08-31 | Release of security interest Release (reel 061997 / frame 0614) | UBS AG, STAMFORD BRANCH signed 2026-08-26 | ALPHA TECHNOLOGIES SERVICES LLC HUDSON, OH AMOT CONTROLS LLC HOUSTON, TX COMPRESSOR CONTROLS LLC DES MOINES, IA CORNELL PUMP COMPANY LLC CLACKAMAS, OR DYNISCO INSTRUMENTS LLC FRANKLIN, MA HANSEN TECHNOLOGIES LLC BURR RIDGE, IL METRIX INSTRUMENT CO., L.P. HOUSTON, TX PRECISION ANALYZER COMPANY L.P. (FKA PETROLEUM ANALYZER COMPANY L.P.) HOUSTON, TX INDICOR HOLDCO LLC (FKA ROPER HOLDINGS, LLC) LAKEWOOD RANCH, FL INDICOR LLC (FKA ROPER INDUSTRIAL PRODUCTS INVESTMENT COMPANY LLC) LAKEWOOD RANCH, FL ROPER PUMP COMPANY LLC COMMERCE, GA STRUERS LLC WESTLAKE, OH VIATRAN CORPORATION TONAWANDA, NY | 76337/221 | PASDL, file of 2026-10-15 |
| 2026-08-27 | Security interest Security interest Security interest | CORNELL PUMP COMPANY LLC signed 2026-08-26 HIGH TIDE TECHNOLOGIES LLC signed 2026-08-26 ROPER PUMP COMPANY LLC signed 2026-08-26 | UBS AG, STAMFORD BRANCH, AS COLLATERAL AGENT STAMFORD, CT | 76275/306 | PASDL, file of 2026-10-15 |
| 2025-11-13 | Correction Corrective assignment to correct the patent number previously recorded at reel: 61997 frame: 614. assignor(s) hereby confirms the security agreement. | ALPHA TECHNOLOGIES SERVICES LLC signed 2022-11-22 AMOT CONTROLS LLC signed 2022-11-22 COMPRESSOR CONTROLS LLC signed 2022-11-22 CORNELL PUMP COMPANY LLC signed 2022-11-22 DYNISCO INSTRUMENTS LLC signed 2022-11-22 HANSEN TECHNOLOGIES LLC signed 2022-11-22 METRIX INSTRUMENT CO., L.P. signed 2022-11-22 PETROLEUM ANALYZER COMPANY L.P. signed 2022-11-22 ROPER HOLDINGS, LLC signed 2022-11-22 ROPER INDUSTRIAL PRODUCTS INVESTMENT COMPANY LLC signed 2022-11-22 ROPER PUMP COMPANY LLC signed 2022-11-22 STRUERS LLC signed 2022-11-22 VIA TRAN CORPORATION signed 2022-11-22 | UBS AG, STAMFORD BRANCH, AS COLLATERAL AGENT STAMFORD, CT | 73434/453 | PASDL, file of 2026-10-15 |
| 2025-05-30 | Release of security interest Release of second lien patent security interests | ROYAL BANK OF CANADA signed 2025-05-29 | AGR INTERNATIONAL, INC. BUTLER, PA ALPHA TECHNOLOGIES SERVICES LLC HUDSON, OH AMOT CONTROLS LLC HOUSTON, TX COMPRESSOR CONTROLS LLC DES MOINES, IA CORNELL PUMP COMPANY LLC CLACKAMAS, OR DYNISCO INSTRUMENTS LLC FRANKFURT, MA HANSEN TECHNOLOGIES LLC BURR RIDGE, IL METRIX INSTRUMENT CO., L.P. HOUSTON, TX PETROLEUM ANALYZER COMPANY L.P. HOUSTON, TX ROPER HOLDINGS, LLC LAKEWOOD RANCH, FL ROPER INDUSTRIAL PRODUCTS INVESTMENT COMPANY LLC LAKEWOOD RANCH, FL ROPER PUMP COMPANY LLC COMMERCE, GA STRUERS LLC WESTLAKE, OH VIATRAN CORPORATION TONAWONDA, NY | 71476/346 | PASDL, file of 2026-10-15 |
| 2022-11-28 | Security interest Security interest Security agreement (second lien) | ALPHA TECHNOLOGIES SERVICES LLC signed 2022-11-22 AMOT CONTROLS LLC signed 2022-11-22 COMPRESSOR CONTROLS LLC signed 2022-11-22 CORNELL PUMP COMPANY LLC signed 2022-11-22 DYNISCO INSTRUMENTS LLC signed 2022-11-22 HANSEN TECHNOLOGIES LLC signed 2022-11-22 METRIX INSTRUMENT CO., L.P. signed 2022-11-22 PETROLEUM ANALYZER COMPANY L.P. signed 2022-11-22 ROPER HOLDINGS, LLC signed 2022-11-22 ROPER INDUSTRIAL PRODUCTS INVESTMENT COMPANY LLC signed 2022-11-22 ROPER PUMP COMPANY LLC signed 2022-11-22 STRUERS LLC signed 2022-11-22 VIATRAN CORPORATION signed 2022-11-22 | ROYL BANK OF CANADA, AS COLLATERAL AGENT TORONTO, ONTARIO | 62003/566 | PASDL, file of 2026-10-15 |
| 2022-11-28 | Security interest Security interest Security agreement (first lien) | ALPHA TECHNOLOGIES SERVICES LLC signed 2022-11-22 AMOT CONTROLS LLC signed 2022-11-22 COMPRESSOR CONTROLS LLC signed 2022-11-22 CORNELL PUMP COMPANY LLC signed 2022-11-22 DYNISCO INSTRUMENTS LLC signed 2022-11-22 HANSEN TECHNOLOGIES LLC signed 2022-11-22 METRIX INSTRUMENT CO., L.P. signed 2022-11-22 PETROLEUM ANALYZER COMPANY L.P. signed 2022-11-22 ROPER HOLDINGS, LLC signed 2022-11-22 ROPER INDUSTRIAL PRODUCTS INVESTMENT COMPANY LLC signed 2022-11-22 ROPER PUMP COMPANY LLC signed 2022-11-22 STRUERS LLC signed 2022-11-22 VIATRAN CORPORATION signed 2022-11-22 | UBS AG, STAMFORD BRANCH, AS COLLATERAL AGENT STAMFORD, CT | 61997/614 | PASDL, file of 2026-10-15 |
| 2022-05-31 | Name change Change of name | ROPER PUMP COMPANY signed 2022-04-28 | ROPER PUMP COMPANY, LLC WILMINGTON, DE | 60220/134 | ECORSEXC, file of 2026-09-25 |
| 2017-11-20 | Assignment Assignment of assignor's interest | FLAVELLE, WILLIAM D. signed 2017-11-10 INGRAM, MICHAEL ANDREW signed 2017-11-15 | ROPER PUMP COMPANY COMMERCE, GA | 44180/40 | 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.