Patents
US 8449649 B2: Systems and methods for starting up pressure swing adsorption assemblies and hydrogen-producing fuel processing systems including the same
- Granted
- 2013-05-28
- Filed
- 2011-04-27 application 13095345
- Type
- Utility · 16 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Systems and methods for initiating startup of PSA assemblies in hydrogen-processing assemblies, which may include a hydrogen-generation assembly and/or a fuel cell stack. The systems and methods include startup procedures that provide for pressurization of the adsorbent beds of the PSA assembly without the need for a stored quantity or other supply of purified hydrogen gas. The systems and methods additionally or alternatively include startup procedures that restrict or even prevent contamination of portions of the PSA assembly, hydrogen storage devices and/or accumulator tanks with an impure gas stream and/or decrease accumulation of the impure gas stream therein. This impure gas stream may be the mixed gas, reformate, or other gas stream that is intended to be purified by the PSA assembly when the PSA assembly is in its hydrogen-purifying operating state.
Source: PVGPATDIS, file of 2026-04-10 (ipg130528.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Idatech, LLC 38 patents | US company or organization | Bend, OR | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Benjamin Charles Greenough | Bend, OR | 2 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| B01D | Separation | B01D53/047 | PVGPATDIS, file of 2026-04-10 |
| C01B | Non-metallic elements; compounds thereof; ; metalloids or compounds thereof not covered by subclass c01c | C01B3/56 | PVGPATDIS, file of 2026-04-10 |
| Y02C | Capture, storage, sequestration or disposal of greenhouse gases [ghg] | Y02C20/40 | PVGPATDIS, file of 2026-04-10 |
| Y02P | Climate change mitigation technologies in the production or processing of goods | Y02P20/151 | 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 |
|---|---|---|---|---|---|
| 2013-03-27 | Security interest Security interest Option | IDATECH, LLC signed 2013-03-13 | DCNS SA 44 620 LA MONTAGNE | 30100/642 | PASDL, file of 2026-10-15 |
| 2011-04-27 | Assignment Assignment of assignor's interest | GREENOUGH, BENJAMIN CHARLES signed 2011-04-19 | IDATECH, LLC BEND, OR | 26199/740 | 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.