Patents
US 12704155 B2: Torque-limiting spindle
- Granted
- 2026-08-11
- Filed
- 2024-12-31 application 19006421
- Type
- Utility · 23 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An exemplary torque-limiting spindle includes an input member, an output member, a clutch mechanism, and a bias mechanism. The input member extends along a longitudinal axis, is configured for connection with a handle, and includes a first engagement feature. The output member extends along the longitudinal axis, is configured for connection with a rotatable member of a lockset, and includes a second engagement feature. The clutch mechanism includes the first engagement feature and the second engagement feature. The bias mechanism is engaged with the input member and the output member and exerts a biasing force urging the first engagement feature and the second engagement feature into engagement with one another.
Source: PTBLXML, file of 2026-08-11 (ipgb20260811.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Schlage Lock Company LLC 764 patents | US company or organization | Carmel, IN | PTBLXML, file of 2026-08-11 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Drake Lunday | Colorado Springs, CO | 15 | PTBLXML, file of 2026-08-11 | |
| Adam M. Litwinski | Centennial, CO | 20 | PTBLXML, file of 2026-08-11 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| F16D | Couplings for transmitting rotation; clutches; brakes | F16D7/044 | PTBLXML, file of 2026-08-11 |
| E05B | Locks; accessories therefor; handcuffs | E05B15/0033 | PTBLXML, file of 2026-08-11 |
| Y10T | Technical subjects covered by former us classification | Y10T292/93 | PTBLXML, file of 2026-08-11 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2025-07-29 | Assignment Assignment of assignor's interest | LUNDAY, DRAKE signed 2020-09-22 LITWINSKI, ADAM M. signed 2020-09-22 | SCHLAGE LOCK COMPANY LLC CARMEL, IN | 71863/323 | PASDL, file of 2026-08-13 |
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.