Patents
US 9879791 B2: Swing check valve
- Granted
- 2018-01-30
- Filed
- 2015-07-23 application 14807009
- Type
- Utility · 14 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A swing check valve with a combination of a flapper and a spring return mechanism is provided. The spring return mechanism includes a spring housing removeably coupled to a valve cover affixed to a valve body. The spring return mechanism also include at least two springs separated by a spring pivot guide for engaging the flapper to bias the flapper in the closed position against a valve seat.
Source: PVGPATDIS, file of 2026-04-10 (ipg180130.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| FLOMATIC CORPORATION 11 patents | US company or organization | Glens Falls, NY | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Allan Bo Andersson | Pittstown, NY | 12 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| F16K | Valves; taps; cocks; actuating-floats; devices for venting or aerating | F16K15/033 | 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 |
|---|---|---|---|---|---|
| 2015-07-23 | Assignment Assignment of assignor's interest | ANDERSSON, ALLAN BO signed 2015-07-21 | FLOMATIC CORPORATION GLENS FALLS, NY | 36164/91 | 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.