Patent US2882033A successfully refreshed from Google Patents.
Patent US3621633A successfully refreshed from Google Patents.
US3621633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for wrapping articles in heat sealable film
Assignee: Lockwood Technical Inc
•
Filing: 1970-02-02
•
Granted: 1971-11-23
•
Expires: 1990-02-02
Abstract
Abstract HEAT SEALABLE FILM IS METERED TO AN OVERWRAP MACHINE FROM TWO SUPPLY WEBS BY MECHANISM COUPLED TO THE SEALING FRAME BY WHICH THE FILM IS WRAPPED, CUT AND SEALED. THAT METERING MECHANISM PERMITS ACCURATE CENTERING OF A PATTERN PREPRINTED ON ONE OF THE SUPPLY WEBS. AN AUXILIARY "TUCKER BAR" IS DRIVEN IN RESPONSE TO SEALING FRAME MOVEMENT AND AIDS WRAPPING OF EACH ARTICLE PRIOR TO SEALING. A CONVENIENT AND ECONOMICAL POWER ASSIST MECHANISM IS DESCRIBED.
Inventors
- 👤 Raymond Thomas Law
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:59
CPC Classifications
B; B65; B65B; B65B9/00; B65B9/02; B65B9/026
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |