Patent US3280428A successfully refreshed from Google Patents.
US3280428A
Expired / Lapsed
US
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Heating mechanism
Assignee: Nordson Corp
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Filing: 1963-04-30
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Granted: 1966-10-25
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Expires: 1983-04-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Ridley Watts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:57
CPC Classifications
B; B29; B29C; B29C35/00; B29C35/02; B29C35/08; B29B; B29B13/00; B29B13/02; B29B13/023; B29C51/00; B29C51/26; B29C51/42; B29C51/421; B29C51/422; B29C35/0805; B29C2035/0822; B29C35/04; B29C35/045; Y; Y10; Y10S; Y10S65/00; Y10S65/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
131 words
IN A PACKAGE FORMING APPARATUS INCLUDING A MOLD HAVING MEANS FOR SHAPING A CONTOURED POCKET IN A SHEET OF FLEXIBLE MATERIAL, A RADIANT HEATING MECHANISM FOR SELECTIVELY HEATING THE SHEET OF FLEXIBLE MATERIAL, SAID MECHANISM COMPRISING A HOUSING DEFINING A FUEL MANIFOLD, FROM SAID MOLD, SAID HOUSING DEFINING A FUEL MANIFOLD, A SHEET OF CATALYTICALLY ACTIVE MATERIAL OVER SAID OPENING, A SUPPORTING SCREEN HOLDING SAID CATALYTICALLY ACTIVE MATERIAL IN SAID HOUSING, A HEAT RESISTANT MASK BETWEEN SAID MANIFOLD AND SAID CATALYTICALLY ACTIVE MATERIAL, SAID MASK HAVING A FIGURED HOLD CONFORMING TO THE OUTLINE OF SAID SHAPING MEANS AND DISPOSED IN ALIGNMENT THEREWITH SO THAT RADIANT HEAT WILL BE APPLIED TO THE SHEET OF FLEXIBLE MATERIAL ONLY IN ITS POCKET-FORMING AREA, AND A SCREEN BETWEEN SAID MASK AND SAID CATALYTICALLY ACTIVE MATERIAL.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |