Patents
US 11795742 B2: Controlled access door barricade system
- Granted
- 2023-10-24
- Filed
- 2021-02-05 application 17168541
- Type
- Utility · 16 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Disclosed are apparatus and corresponding and/or associated methodology for door barricade systems which may be activated from inside an enclosure (or room) while still maintaining controlled serviceability or access to the enclosure from outside of the enclosure. Per some embodiments, bolts passed through a doorframe as a retrofit feature may support an interior plate which has a channel or passage for receipt of a manually removable door block member. The bolts are secured by an exterior plate and custom nuts which have customized drive surfaces. Corresponding custom drive head features interface with the custom nuts for either installation or removal of the door barricade system, even if the door block member is in place. Corresponding hole features on the custom nuts match with custom drive head pin features to provide an effective keyed entrance, which is hardened against forced entry if a person outside the secured room does not have the appropriate custom drive head.
Source: PVGPATDIS, file of 2026-04-10 (ipg231024.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| JENDYK MANUFACTURING, INC. 2 patents | US company or organization | Swainsboro, GA | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Bryant F. Lewis | Swainsboro, GA | 2 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| E05C | Bolts or fastening devices for wings, specially for doors or windows | E05C19/003 | 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 |
|---|---|---|---|---|---|
| 2021-02-12 | Assignment Assignment of assignor's interest | LEWIS, BRYANT F. signed 2021-02-10 | JENDYK MANUFACTURING, INC. SWAINSBORO, GA | 55243/916 | 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.