Patents
US 12435741 B2: Cylinder assembly for tilting a vacuum tank
- Granted
- 2025-10-07
- Filed
- 2023-04-20 application 18304060
- Type
- Utility · 16 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A dual-cylinder tilting assembly for use with a vacuum tank. The tank is mounted on a frame, such as a trailer or a truck bed, at a pivotal connection at its end. A door is disposed near the end with the pivotal connection. The tilting assembly is at the other end, and has two cylinders with their rods facing alternate directions. The rod of one of the cylinders is pivotally attached to the frame and the rod of the other is pivotally attached to the tank. The barrels of the two cylinders are joined physically and hydraulically linked. The cylinder assembly, when fully extended, extends approximately three times its unextended length and tilts the tank at an angle of thirty to fifty degrees.
Source: PVGPATDIS, file of 2026-04-10 (ipg251007.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 |
|---|---|---|---|---|
| Lance D. Littlewood | Edmond, OK | 2 | PVGPATDIS, file of 2026-04-10 | |
| Levi J. Krutzfeldt | Perry, OK | 3 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| F15B | Systems acting by means of fluids in general; fluid-pressure actuators, e.g. servomotors; details of fluid-pressure systems, not otherwise provided for | F15B15/1428 | PVGPATDIS, file of 2026-04-10 |
| B60P | Vehicles adapted for load transportation or to transport, to carry, or to comprise special loads or objects | B60P3/2245 | 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 |
|---|---|---|---|---|---|
| 2023-05-10 | Assignment Assignment of assignor's interest | LITTLEWOOD, LANCE D. signed 2023-05-10 KRUTZFELDT, LEVI J. signed 2023-05-02 | THE CHARLES MACHINE WORKS, INC. PERRY, OK | 63599/779 | 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.