Patents
US 12350986 B2: Flexible spring member and end closure assemblies as well as gas spring and gas damper assemblies including same
- Granted
- 2025-07-08
- Filed
- 2021-06-01 application 18007517
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Flexible spring member and end closure assemblies include a flexible spring member-defining a spring chamber. An end closure body includes an outer peripheral surface portion and an elongated damping passage extending axially into end closure wall in a spiral arrangement about longitudinal axis. End closure body is positioned along an end of flexible spring member with flexible wall permanently attached along outer peripheral surface portion such that a substantially fluid-tight joint is formed between flexible spring member and end closure body. Gas spring and gas damper assemblies as well as methods of assembly are also included.
Source: PVGPATDIS, file of 2026-04-10 (ipg250708.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Firestone Industrial Products Company, LLC 193 patents | US company or organization | Nashville, TN | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Edger ten Broeke | Sinderen, NL | 3 | PVGPATDIS, file of 2026-04-10 | |
| Joshua R. Leonard | Noblesville, IN | 60 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| B60G | Vehicle suspension arrangements | B60G11/27 | PVGPATDIS, file of 2026-04-10 |
| F16F | Springs; shock-absorbers; means for damping vibration | F16F9/0454 | 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 |
|---|---|---|---|---|---|
| 2022-12-01 | Assignment Assignment of assignor's interest | TEN BROEKE, EDGER signed 2020-08-14 LEONARD, JOSHUA R. signed 2020-08-17 | FIRESTONE INDUSTRIAL PRODUCTS COMPANY, LLC NASHVILLE, TN | 61941/216 | 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.