Patents
US 8316874 B2: Pressure plenum flow divider
- Granted
- 2012-11-27
- Filed
- 2009-04-29 application 12432410
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A fluid metering or pumping device includes multiple pumping or metering elements that are connected so that they all operate together, moving in the same direction and at the same speed. The multiple pumping or metering elements are intended for use at high pressures where the strain from the pressure might distort the walls of the elements, and interfere with their pumping or metering accuracy. These elements are enclosed in, but preferably not directly connected to a pressure vessel that would contain the high operating pressure, leaving the pumping or metering element housings to only contain the pressure rise or fall that occurs within that element. The pumping or metering elements are connected to a support structure that also penetrates the pressure vessel, and contains an outlet port for that element. The pressure vessel connects the elements, and serves as an intake plenum for all of the elements.
Source: PVGPATDIS, file of 2026-04-10 (ipg121127.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 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G05D | Systems for controlling or regulating non-electric variables | G05D11/005 | PVGPATDIS, file of 2026-04-10 |
| Y10T | Technical subjects covered by former us classification | Y10T137/2516 | 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 |
| 2009-05-12 | Assignment Assignment of assignor's interest | FLAVELLE, WILLIAM D. signed 2009-05-03 | ROPER PUMP COMPANY COMMERCE, GA | 22669/516 | 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.