Patents
US 9447890 B2: Back pressure regulator with floating seal support
- Granted
- 2016-09-20
- Filed
- 2012-06-23 application 14128224
- Type
- Utility · 28 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A sealing apparatus for a back pressure regulator includes: a body defining a process surface, and including: at least one process void communicating with the process surface; a recess disposed in the process surface; a floating support hub disposed in the recess, carrying an O-ring; a vent void communicating with the recess; an inlet port disposed in fluid communication with the at least one process void and adapted to be coupled in fluid communication with a fluid at a process pressure; and an outlet port disposed in fluid communication with the vent void; and a diaphragm having opposed reference and process sides, the diaphragm disposed against the body such that the process side is substantially coplanar with the process surface.
Source: PVGPATDIS, file of 2026-04-10 (ipg160920.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Equilibar, LLC 8 patents | US company or organization | Fletcher, NC | EQUILIBAR, 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 |
|---|---|---|---|---|
| Jeffrey D. Jennings | Hendersonville, NC | 11 | PVGPATDIS, file of 2026-04-10 | |
| Tony Boyd Tang | Asheville, NC | 5 | PVGPATDIS, file of 2026-04-10 | |
| Keith A. Roberts | Penrose, NC | 14 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| F16K | Valves; taps; cocks; actuating-floats; devices for venting or aerating | F16K7/17 | PVGPATDIS, file of 2026-04-10 |
| G05D | Systems for controlling or regulating non-electric variables | G05D16/024 | 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 |
|---|---|---|---|---|---|
| 2021-05-03 | Security interest Security interest Security interest | EQUILIBAR, LLC signed 2021-04-30 | BMO HARRIS BANK N.A. CHICAGO, IL | 56114/856 | PASDL, file of 2026-10-15 |
| 2013-12-20 | Assignment Assignment of assignor's interest | JENNINGS, JEFFREY DEAN signed 2013-12-19 ROBERTS, KEITH ALAN signed 2013-12-19 TANG, TONY BOYD signed 2013-12-19 | EQUILIBAR, LLC FLETCHER, NC | 31830/44 | 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.