Patents
US 12638187 B2: Portable heater with safety features
- Granted
- 2026-05-26
- Filed
- 2023-02-01 application 18163013
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A fuel-fired heater can include a fuel tank; a housing assembly supported by the fuel tank, the housing assembly defining a chamber having an inlet and an air outlet; a fan located within the housing assembly; an air pump located within the housing assembly; an electric motor coupled to at least one of the fan and the air pump; a burner assembly located within the housing assembly, the burner assembly including a burner nozzle in fluid communication with the air pump and the fuel tank via a fuel line, and including an ignitor; and an electronic controller operating the electric motor and ignitor, the electronic controller including a proximity sensor oriented and arranged to sense an object located in front of the air outlet, wherein the electronic controller deactivates the electric motor when an object is sensed by the proximity sensor within a predetermined distance for a predetermined time period. In some examples, the heater includes a carbon monoxide sensor oriented and arranged to sense an ambient carbon monoxide level proximate the heater, wherein the electronic controller closes the fuel shut-off valve when a sensed carbon monoxide level exceeds a predetermined threshold for a predetermined period of time, for example 180 seconds. In some examples, the heater includes a fuel shut-off valve oriented and arranged to control fuel flow in the fuel line, wherein the electronic controller deactivates the heater by first activating the fuel shut-off valve to block flow through the fuel line and subsequently deactivating the electric motor after a predetermined time period.
Source: PTBLXML, file of 2026-05-26 (ipgb20260526.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Pinnacle Climate Technologies, Inc. 16 patents | US company or organization | Eden Prairie, MN | PINNACLE CLIMATE TECHNOLOGIES, INC State business registration EXACT high confidence: identical full name and state | PTBLXML, file of 2026-05-26 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Chris Kwok | Sartell, MN | 6 | PTBLXML, file of 2026-05-26 | |
| Jacob Frame | St. Joseph, MN | 12 | PTBLXML, file of 2026-05-26 | |
| Mark Daniels | St. Cloud, MN | PTBLXML, file of 2026-05-26 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| F24C | Domestic stoves or ranges ; details of domestic stoves or ranges, of general application | F24C5/16 | PTBLXML, file of 2026-05-26 |
| G01N | Investigating or analysing materials by determining their chemical or physical properties | G01N33/0062 | PTBLXML, file of 2026-05-26 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2026-03-17 | Assignment Assignment of assignor's interest | KWOK, CHRIS signed 2022-02-02 FRAME, JACOB signed 2022-02-02 DANIELS, MARK signed 2022-02-02 | PINNACLE CLIMATE TECHNOLOGIES, INC. EDEN PRAIRIE, MN | 74095/198 | PASDL, file of 2026-10-15 |
| 2023-02-01 | Assignment Assignment of assignor's interest | HOU, YINJUN signed 2023-02-01 LI, HUA signed 2023-02-01 GAO, QIAN signed 2023-02-01 WANG, YONGBO signed 2023-02-01 YANG, XIUDING signed 2023-02-01 GAO, YUE signed 2023-02-01 ZHAO, YUQING signed 2023-02-01 ZHANG, JIE signed 2023-02-01 LIANG, CHENGYUAN signed 2023-02-01 | SHAANXI ANGSHENG BIO-PHARMACEUTICAL TECHNOLOGY CO., LTD. XI'AN, SHAANXI | 62564/603 | PASDL, file of 2026-10-15 |
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.