Patent US3221375A successfully refreshed from Google Patents.
US3221375A
Expired / Lapsed
US
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Sealing means
Assignee: Braden Steel Corp
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Filing: 1962-12-14
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Granted: 1965-12-07
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Expires: 1982-12-14
Abstract
No abstract record available.
Inventors
- 👤 James C Lewis
- 👤 Robert M Hockett
- 👤 Rex H Wainwright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:02
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/16; E06B7/22; E06B7/23; E06B7/2314; Y; Y10; Y10T; Y10T292/00; Y10T292/11
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
143 words
MEANS FOR SEALING A DOOR MOUNTED WITHIN A DOOR FRAME, COMPRISING: MEANS DEFINING AN ELONGATED CHANNEL SECURED TO ONE OF SAID DOOR OF FRAME ADJACENT AND FACING THE OTHER THEREOF WHEN SAID DOOR IS CLOSED; MEANS DEFINING A SLOT IN THE BOTTOM OF SAID CHANNEL, SAID SLOT HAVING A NARROWED NECK; A RESILIENT IMPERVIOUS TRANSVERSELY EXTENSIBLE SEALING MEMBER HAVING A FLANGE MOUNTED WITHIN SAID CHANNEL WITH SAID FLANGE DISPOSED IN SAID SLOT, SAID SEALING MEMBER BEING NORMALLY POSITIONED FOR THE MOST PART WITHIN SAID CHANNEL; AN ELONGATED STRIP OF PERMANENTLY MAGNETIZABLE MATERIAL SECURED TO SAID SEALING MEMBER AND ADAPTED TO MOVE TRANSVERSELY OUT OF SAID CHANNEL TO SEALINGLY ENGAGE THE OTHER OF SAID DOOR OR FRAME WHEN SAID DOOR IS CLOSED; AND MEANS DEFINING A MAGNETORESPONSIVE SURFACE ON THE OTHER OF SAID DOOR OR FRAME FACING SAID CHANNEL WHEN SAID DOOR IS CLOSED.
References Cited (Backward Citations)
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Cited
US2694239A
Cited
US2859496A
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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) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |