Patents
US 8186194 B2: Cylinder lock and auxiliary locking mechanism
- Granted
- 2012-05-29
- Filed
- 2009-03-27 application 12413139
- Type
- Utility · 13 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A tumbler pin lock includes an auxiliary locking mechanism including an auxiliary locking pin to provide enhance locking in addition to the locking provided by the tumbler pins so that the lock remains locked even if the tumblers are picked or bumped into their unlocked positions.
Source: PVGPATDIS, file of 2026-04-10 (ipg120529.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 |
|---|---|---|---|---|
| Peter H. Field | Salem, VA | 17 | PVGPATDIS, file of 2026-04-10 | |
| David P. Sutherland | Roanoke, VA | 2 | PVGPATDIS, file of 2026-04-10 | |
| Glenn Hartman | Salem, VA | 6 | PVGPATDIS, file of 2026-04-10 | |
| Mark Benzie | Roanoke, VA | 6 | PVGPATDIS, file of 2026-04-10 | |
| Walt Dannhardt | Roanoke, VA | 1 | PVGPATDIS, file of 2026-04-10 | |
| Kevin Galliher | Roanoke, VA | 1 | 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 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| E05B | Locks; accessories therefor; handcuffs | E05B27/0035 | PVGPATDIS, file of 2026-04-10 |
| Y10T | Technical subjects covered by former us classification | Y10T70/7576 | 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 |
| 2009-05-28 | Assignment Assignment of assignor's interest | BENZIE, MARK signed 2009-04-21 BOADWINE, DAN signed 2009-04-21 FIELD, PETER H. signed 2009-04-21 ROBERSON, CLYDE T. signed 2009-04-21 DANNHARDT, WALT signed 2009-04-23 HARTMAN, GLENN signed 2009-04-23 SUTHERLAND, DAVID P. signed 2009-04-24 GALLIHER, KEVIN signed 2009-04-30 | MEDECO SECURITY LOCKS, INC. SALEM, VA | 22747/386 | 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.