Patents
US 7895865 B2: Cylinder lock assembly with a tailpiece rotationally coupled to the cylinder plug
- Granted
- 2011-03-01
- Filed
- 2008-08-14 application 12191565
- Type
- Utility · 23 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
The present application relates to lock assemblies that provide a secondary coupling point, utilizing an anti-rotation pin or extended tailpiece leg or other method, which rotationally couples the tailpiece to the cylinder plug, thereby preventing rotation of the tailpiece independently of the cylinder plug. Therefore, a tailpiece within a bolt cam or other actuator used to withdraw a bolt or unlock a lockset cannot be rotated after the tailpiece connector connecting the tailpiece to the cylinder plug has been forcibly removed, severed, or destroyed.
Source: PVGPATDIS, file of 2026-04-10 (ipg110301.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| MEDECO SECURITY LOCKS, INC. 10 patents | US company or organization | Salem, VA | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Glenn Hartman | Salem, VA | 6 | PVGPATDIS, file of 2026-04-10 | |
| Mark Benzie | Roanoke, VA | 6 | PVGPATDIS, file of 2026-04-10 | |
| Dan Boadwine | Salem, VA | 3 | PVGPATDIS, file of 2026-04-10 | |
| Clyde T. Roberson | Salem, VA | 6 | PVGPATDIS, file of 2026-04-10 | |
| Doug Trent | Roanoke, VA | 3 | PVGPATDIS, file of 2026-04-10 | |
| Peter H. Field | Salem, VA | 17 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| E05B | Locks; accessories therefor; handcuffs | E05B17/04 | PVGPATDIS, file of 2026-04-10 |
| Y10T | Technical subjects covered by former us classification | Y10T70/20 | 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 |
|---|---|---|---|---|---|
| 2016-06-09 | Name change Change of name | MEDECO SECURITY LOCKS, INCORPORATED signed 2015-12-31 | ASSA ABLOY HIGH SECURITY GROUP INC. SALEM, VA | 38934/595 | ECORSEXC, file of 2026-09-25 |
| 2008-10-15 | Assignment Assignment of assignor's interest | BOADWINE, DAN signed 2008-08-21 FIELD, PETER H. signed 2008-08-21 ROBERSON, CLYDE T. signed 2008-08-21 BENZIE, MARK signed 2008-08-25 HARTMAN, GLENN signed 2008-08-25 TRENT, DOUG signed 2008-09-03 | MEDECO SECURITY LOCKS, INC. SALEM, VA | 21684/86 | 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.