Patents
US 12024409 B2: Line gripping winch drum
- Granted
- 2024-07-02
- Filed
- 2022-04-12 application 17719318
- Type
- Utility · 8 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A winch drum is disclosed. In a first aspect, a first set of teeth are positioned around an outer perimeter of a drum. The first set of teeth taper from a first crown to a first base. A second set of teeth are positioned around the outer perimeter of the drum. The second set of teeth taper from a second crown to a second base. The second set of teeth are offset from the first set of teeth such that a gap between the first bases and the second bases forms a sinusoidal channel for a line to follow the first set of teeth and the second set of teeth becomes a guide for the line so that the line can engage the sinusoidal channel. The line follows the sinusoidal channel and each change of direction along the sinusoidal path causes the line to engage by friction with the first bases and the second bases. In a second aspect, the drum includes a trough that follows a sinusoidal path and wherein the trough is narrower at its bottom than at its top.
Source: PVGPATDIS, file of 2026-04-10 (ipg240702.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Hall Labs LLC 302 patents | US company or organization | Provo, UT | Hall Labs LLC Form D issuer EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Michael Hall | Provo, UT | 37 | PVGPATDIS, file of 2026-04-10 | |
| David R. Hall | Provo, UT | 859 | PVGPATDIS, file of 2026-04-10 | |
| Michael Shinedling | Provo, UT | 7 | PVGPATDIS, file of 2026-04-10 | |
| Chandler Flinders | Provo, UT | 6 | PVGPATDIS, file of 2026-04-10 | |
| Nathan Davis | Bountiful, UT | 34 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| B66D | Capstans; winches; tackles, e.g. pulley blocks; hoists | B66D1/7415 | 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 |
|---|---|---|---|---|---|
| 2024-05-29 | Assignment Assignment of assignor's interest | HALL LABS INC. signed 2024-05-29 | HALL LOGIC, INC. PROVO, UT | 67556/956 | ECORSEXC, file of 2026-09-25 |
| 2024-05-28 | Assignment Assignment of assignor's interest | DAVIS, NATHAN signed 2022-04-19 FLINDERS, CHANDLER signed 2022-04-19 HALL, DAVID R. signed 2022-04-19 HALL, MICHAEL signed 2022-04-19 SHINEDLING, MICHAEL signed 2022-04-25 | HALL LABS LLC PROVO, UT | 67544/50 | 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.