Patents
US 8690089 B1: Latch assembly for access door to rotating drum
- Granted
- 2014-04-08
- Filed
- 2011-10-24 application 13317607
- Type
- Utility · 15 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A drum rotation machine includes a working drum mounted for rotation within an enclosure. An access door provides access to the interior of the enclosure, and the access door is moveable between a closed position and an open position. A latch assembly is mounted on the enclosure and is moveable between a locked position and an unlocked position. In the locked position, the latch assembly prevents the access door from moving from the closed position to the open position. In the unlocked position, the latch assembly allows the access door to be moved from the closed position to the open position, and engages an anti-rotation catch on the working drum to prevent rotation of the working drum.
Source: PVGPATDIS, file of 2026-04-10 (ipg140408.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Astec Industries, Inc. 26 patents | US company or organization | Chattanooga, TN | ASTEC INDUSTRIES INC SEC filer EXACT medium confidence: identical full name, one of each nationally | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| William A. Ganser, IV | Eugene, OR | 1 | PVGPATDIS, file of 2026-04-10 | |
| Bradley Simon Harness | Springfield, OR | 4 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| B02C | Crushing, pulverising, or disintegrating in general; milling grain | B02C7/11 | 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 |
|---|---|---|---|---|---|
| 2025-07-02 | Release of security interest Release of security interest at reel/frame 062153/0169 | WELLS FARGO BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT signed 2025-07-01 | ASTEC, INC. CHATTANOOGA, TN ASTEC INDUSTRIES, INC. CHATTANOOGA, TN ROADTEC, INC. CHATTANOOGA, TN TELSMITH, INC. CHATTANOOGA, TN CARLSON PAVING PRODUCTS, INC. CHATTANOOGA, TN KOLBERG-PIONEER, INC. YANKTON, SD BREAKER TECHNOLOGY, INC. THORNBURY POWER FLAME INCORPORATED PARSONS, KS ASTEC MOBILE SCREENS, INC. STERLING, IL JOHNSON CRUSHERS INTERNATIONAL, INC. EUGENE, OR GEFCO, INC. HIXSON, TN | 71787/926 | PASDL, file of 2026-10-15 |
| 2025-07-02 | Security interest Security interest Security agreement | ASTEC INDUSTRIES, INC. signed 2025-07-01 ASTEC, INC. signed 2025-07-01 ASTEC MOBILE SCREENS, INC. signed 2025-07-01 BREAKER TECHNOLOGY, INC. signed 2025-07-01 CARLSON PAVING PRODUCTS, INC. signed 2025-07-01 JOHNSON CRUSHERS INTERNATIONAL, INC. signed 2025-07-01 KOLBERG-PIONEER, INC. signed 2025-07-01 POWER FLAME INCORPORATED signed 2025-07-01 ROADTEC, INC. signed 2025-07-01 TELSMITH, INC. signed 2025-07-01 TERRASOURCE GLOBAL CORPORATION signed 2025-07-01 CMI/CSI LLC signed 2025-07-01 TABOR MACHINE COMPANY, LLC signed 2025-07-01 ELGIN POWER AND SEPARATION SOLUTIONS, LLC signed 2025-07-01 ELGIN SEPARATION SOLUTIONS INDUSTRIALS, LLC signed 2025-07-01 | WELLS FARGO BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT SAN ANTONIO, TX | 71787/859 | PASDL, file of 2026-10-15 |
| 2022-12-19 | Security interest Security interest Security interest | ASTEC, INC. signed 2022-12-19 ASTEC INDUSTRIES, INC. signed 2022-12-19 ROADTEC, INC. signed 2022-12-19 TELSMITH, INC. signed 2022-12-19 CARLSON PAVING PRODUCTS, INC. signed 2022-12-19 KOLBERG-PIONEER, INC. signed 2022-12-19 BREAKER TECHNOLOGY, INC. signed 2022-12-19 POWER FLAME INCORPORATED signed 2022-12-19 ASTEC MOBILE SCREENS, INC. signed 2022-12-19 JOHNSON CRUSHERS INTERNATIONAL, INC. signed 2022-12-19 GEFCO, INC. signed 2022-12-19 | WELLS FARGO BANK, NATIONAL ASSOCIATION CHARLOTTE, NC | 62153/169 | PASDL, file of 2026-10-15 |
| 2011-10-24 | Assignment Assignment of assignor's interest | GANSER, WILLIAM ABRAHAM, IV signed 2011-10-19 HARNESS, BRADLEY SIMON signed 2011-10-19 | ASTEC INDUSTRIES, INC. CHATTANOOGA, TN | 27280/766 | 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.