Patents
US 12680234 B2: Anti-wiggle clip shoulder for rail fastener
- Granted
- 2026-07-14
- Filed
- 2022-08-23 application 17893757
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A direct fixation track rail fastener includes a first clip shoulder and a second clip shoulder each having a clip tunnel formed therein. Each clip tunnel is formed in part by a plurality of clip contact faces defining a first prong contact line and a second prong contact line for a prong of a rail clip. The configuration of multiple line contacts prevents undesired displacement of a rail clip during service.
Source: PTBLXML, file of 2026-07-14 (ipgb20260714.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Progress Rail Services Corporation 113 patents | US company or organization | Albertville, AL | PTBLXML, file of 2026-07-14 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Edward Constantine | Belton, MO | 13 | PTBLXML, file of 2026-07-14 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| E01B | Permanent way; permanent-way tools; machines for making railways of all kinds | E01B9/60 | PTBLXML, file of 2026-07-14 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2022-08-24 | Assignment Assignment of assignor's interest | CONSTANTINE, EDWARD signed 2022-08-22 | PROGRESS RAIL SERVICES CORPORATION ALBERTVILLE, AL | 60890/728 | 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.