Patents
US 8506526 B2: Seal structures for wet/dry automatic injectors
- Granted
- 2013-08-13
- Filed
- 2012-05-10 application 13468421
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An automatic injection device including a housing, a chamber with a first compartment and a second compartment, and a seal structure between the compartments. The seal structure is initially in a sealing condition that seals the first compartment from the second compartment, where the seal includes a plug and an outer sealing member. The plug is slidably movable within the outer sealing member to convert the seal structure from the sealing condition to a mixing condition by opening a path between the first compartment and the second compartment. The automatic injection device also includes a needle assembly and an activation assembly. Activation of the activation assembly causes (1) pressurization of the first compartment, (2) the seal structure to convert from the sealing condition to the mixing condition, and (3) the first and second medicament components to be mixed and forced through the needle assembly.
Source: PVGPATDIS, file of 2026-04-10 (ipg130813.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Meridian Medical Technologies, Inc. 17 patents | US company or organization | Columbia, MD | MERIDIAN MEDICAL TECHNOLOGIES, INC. State business registration EXACT high confidence: identical full name and state MERIDIAN MEDICAL TECHNOLOGIES Federal lobbying client FUZZY medium confidence: same name (legal endings aside) and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Steven Griffiths | Ellicott City, MD | 13 | PVGPATDIS, file of 2026-04-10 | |
| Robert L. Hill | Edgewood, MD | 14 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| A61M | Devices for introducing media into, or onto, the body ; devices for transducing body media or for taking media from the body ; devices for producing or ending sleep or stupor | A61M5/31596 | 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 |
|---|---|---|---|---|---|
| 2022-04-19 | Correction Entity conversion | MERIDIAN MEDICAL TECHNOLOGIES, INC. signed 2021-12-31 | MERIDIAN MEDICAL TECHNOLOGIES, LLC COLUMBIA, MD | 59727/945 | ECORSEXC, file of 2026-09-25 |
| 2012-05-10 | Assignment Assignment of assignor's interest | WILMOT, JOHN G. signed 2004-02-19 GRIFFITHS, STEVEN M. signed 2004-02-20 HILL, ROBERT L. signed 2004-02-20 | MERIDIAN MEDICAL TECHONOLOGIES, INC. COLUMBIA, MD | 28189/440 | 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.