Patents
US 8973601 B2: Liquid condition sensing circuit and method
- Granted
- 2015-03-10
- Filed
- 2011-01-31 application 13017917
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A liquid condition sensor configured to monitor the condition of a liquid in an ultrasonic cleaning system tank, the liquid condition sensor including a first circuit configured to detect a signal transmitted from an ultrasonic generator to one or more ultrasonic transducers located in the tank. The liquid condition sensor further includes a second circuit coupled to the first circuit, the second circuit configured to determine if the signal is indicative of one of a suboptimal liquid level, and an unacceptably high concentration of dissolved gases in the cleaning liquid, and a third circuit coupled to the second circuit, the third circuit configured to provide a warning if one of a suboptimal liquid level, and an unacceptably high concentration of dissolved gases in the cleaning liquid is indicated by the second circuit.
Source: PVGPATDIS, file of 2026-04-10 (ipg150310.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Ultrasonic Power Corporation 2 patents | US company or organization | Freeport, IL | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Peter J. Puskas | Freeport, IL | 2 | PVGPATDIS, file of 2026-04-10 | |
| Steven H. Myers | Lena, IL | 2 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| B08B | Cleaning in general; prevention of fouling in general | B08B3/12 | PVGPATDIS, file of 2026-04-10 |
| F17D | Pipe-line systems; pipe-lines | F17D3/00 | PVGPATDIS, file of 2026-04-10 |
| Y10T | Technical subjects covered by former us classification | Y10T137/0318 | 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 |
|---|---|---|---|---|---|
| 2020-03-17 | Assignment Assignment of assignor's interest | ULTRASONIC POWER CORPORATION signed 2019-07-15 | BJG NELSON HOLDINGS, INC. FREEPORT, IL | 52142/269 | ECORSEXC, file of 2026-09-25 |
| 2011-02-01 | Assignment Assignment of assignor's interest | MYERS, STEVEN H. signed 2011-01-31 PUSKAS, PETER J. signed 2011-01-31 | ULTRASONIC POWER CORPORATION FREEPORT, IL | 25725/39 | 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.