Patents
US 7578632 B2: Secure interlocking system for plastic materials
- Granted
- 2009-08-25
- Filed
- 2007-05-08 application 11800852
- Type
- Utility · 14 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A first plastic component and a second plastic component are joined together by an expansive joint system on the first plastic component and a driving joint system on the second plastic component. The expansive joint system has two expansive units while the driving joint system has corresponding driving units. When the driving units simultaneously expand the respective expansive units to a predetermined point, the expansive units contract to their original position and securely lock onto portions of the second plastic component.
Source: PVGPATDIS, file of 2026-04-10 (ipg090825.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Confer Plastics, Inc. 8 patents | US company or organization | North Tonawanda, NY | CONFER PLASTICS, INC. State business registration EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| David J. Lipniarski | North Tonawanda, NY | 10 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| B29C | Shaping or joining of plastics; shaping of material in a plastic state, not otherwise provided for; after-treatment of the shaped products, e.g. repairing | B29C65/56 | PVGPATDIS, file of 2026-04-10 |
| E06C | Ladders | E06C7/08 | PVGPATDIS, file of 2026-04-10 |
| F16B | Devices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges; joints or jointing | F16B21/086 | PVGPATDIS, file of 2026-04-10 |
| B29L | Indexing scheme associated with subclass b29c, relating to particular articles | B29L2031/003 | PVGPATDIS, file of 2026-04-10 |
| Y10T | Technical subjects covered by former us classification | Y10T403/4966 | 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 |
|---|---|---|---|---|---|
| 2007-05-08 | Assignment Assignment of assignor's interest | LIPNIARSKI, DAVID J. signed 2007-05-01 | CONFER PLASTICS, INC. NORTH TONAWANDA, NY | 19335/634 | 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.