Patents
US 11913588 B2: Portable winch
- Granted
- 2024-02-27
- Filed
- 2022-08-26 application 17896722
- Type
- Utility · 14 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A portable winch and method of use is shown. One advantage of winches shown includes an ability to lower a boom or boom sections into limited access exit pit for winching operations such as pipe bursting. Sectional boom designs shown provide the ability to easily raise and lower a boom large distances without the need for a single long boom. Selected winch designs shown include flexible inserts between the boom and the winch frame that help resist damage from unforeseen shifting of the device during operation. Designs and methods shown also include multiple pulleys on a boom end unit. Fasteners are shown that reduce build up of debris.
Source: PVGPATDIS, file of 2026-04-10 (ipg240227.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| TT Technologies, Inc. 105 patents | US company or organization | Aurora, IL | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Michael Tjader | New Richmond, WI | 82 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| F16L | Pipes; joints or fittings for pipes; supports for pipes, cables or protective tubing; means for thermal insulation in general | F16L55/18 | PVGPATDIS, file of 2026-04-10 |
| B66C | Cranes; load-engaging elements or devices for cranes, capstans, winches, or tackles | B66C23/66 | PVGPATDIS, file of 2026-04-10 |
| B66D | Capstans; winches; tackles, e.g. pulley blocks; hoists | B66D1/36 | PVGPATDIS, file of 2026-04-10 |
| E21B | Earth or rock drilling; obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells | E21B7/30 | 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 |
|---|---|---|---|---|---|
| 2023-01-09 | Assignment Assignment of assignor's interest | TJADER, MICHAEL signed 2007-11-28 | TT TECHNOLOGIES, INC. AURORA, IL | 62316/343 | 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.