Patents
US 9127697 B1: Dynamically stable pressure control system
- Granted
- 2015-09-08
- Filed
- 2012-08-02 application 13565537
- Type
- Utility · 11 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A hydraulic pressure control system having a variable displacement pump fluidly connected to a hydraulic motor. The pump provides flow to a first circuit upon demand. Remaining flow is provided to a second circuit. The second circuit includes a pilot controlled pressure reducing valve that adjusts the pumps outlet pressure based upon a sensed loads taken from a conduit between the pressure control valve and an active flow regulator valve.
Source: PVGPATDIS, file of 2026-04-10 (ipg150908.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| SAUER-DANFOSS INC. 39 patents | US company or organization | Ames, IA | SAUER DANFOSS INC 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 |
|---|---|---|---|---|
| Charles D. Throckmorton | Ames, IA | 2 | PVGPATDIS, file of 2026-04-10 | |
| Stephen D. Cromer | Piedmont, SC | 1 | PVGPATDIS, file of 2026-04-10 | |
| Glenn M. Mahony | Greenville, SC | 5 | PVGPATDIS, file of 2026-04-10 | |
| Michael J. Stoltenow | Greenfield, MN | 1 | PVGPATDIS, file of 2026-04-10 | |
| Chad J. Daniel | Ankeny, IA | 3 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| F15B | Systems acting by means of fluids in general; fluid-pressure actuators, e.g. servomotors; details of fluid-pressure systems, not otherwise provided for | F15B11/162 | PVGPATDIS, file of 2026-04-10 |
| F16H | Gearing | F16H61/4008 | PVGPATDIS, file of 2026-04-10 |
| E02F | Dredging; soil-shifting | E02F9/2217 | 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 |
|---|---|---|---|---|---|
| 2012-08-28 | Assignment Assignment of assignor's interest | DANIEL, CHAD J. signed 2012-08-03 THROCKMORTON, CHARLES D. signed 2012-08-03 CROMER, STEPHEN D. signed 2012-08-13 MAHONY, GLENN M., JR. signed 2012-08-13 STOLTENOW, MICHAEL J. signed 2012-08-16 | SAUER-DANFOSS INC. AMES, IA | 28859/158 | 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.