Patents
US 12116855 B2: Virtual brake system
- Granted
- 2024-10-15
- Filed
- 2023-06-26 application 18341309
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A brake system for maintaining an angular position of a spindle assembly. A pump-powered motor drives rotation of a spindle on the machine. When no rotation is desired, the spindle will slow, then stop at a desired angular orientation. A rotational sensor will determine the clock position, and a controller compares that to a desired angular orientation. If an error tolerance is exceeded, the motor will rotate the spindle back to the desired orientation.
Source: PVGPATDIS, file of 2026-04-10 (ipg241015.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| The Charles Machines Works, Inc. 255 patents | US company or organization | Perry, OK | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Joseph G. Greenlee | Perry, OK | 12 | PVGPATDIS, file of 2026-04-10 | |
| Aleksander S. Wolfe | Stillwater, OK | 11 | PVGPATDIS, file of 2026-04-10 | |
| Jarred R. Callaway | Stillwater, OK | 4 | PVGPATDIS, file of 2026-04-10 | |
| Max A. Metcalf | Stillwater, OK | 17 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| E21B | Earth or rock drilling; obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells | E21B3/02 | PVGPATDIS, file of 2026-04-10 |
| F16D | Couplings for transmitting rotation; clutches; brakes | F16D63/006 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
No recorded assignments or security interests on file for this patent.
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.