Closure sealing apparatus
Abstract
Abstract CLOSURE SEALING APPARATUS EMPLOYING A GASKET HAVING A STIFF BACKING STRIP AND PARALLEL RESILIENT BUBBLES OR LOOPS INTEGRAL THEREWITH. THE GASKET MAY BE MOUNTED UPON THE FRAME SURROUNDING THE PERIPHERY OF THE CLOSURE WITH THE BUBBLES PROJECTING FROM THE BACKING STRIP IN THE DIRECTION OF CLOSING OF THE CLOSURE, AND MOUNTED UPON THE BOTTOM OF THE CLOSURE WITH THE BUBBLES PROJECTING IN THE DIRECTION OF OPENING OF THE CLOSURE. CONTACT OF THE FRAME-MOUNTED BUBBLES AND THE CLOSURE IS RESTRICTED TO THE PERIPHERY OF THE CLOSURE. WHEN THE FRAME IS PROVIDED WITH A LATCH CUTOUT, ONE OF THE BUBBLES MAY BE INTERRUPTED BUT NOT THE OTHER. BEVELLING OF THE CLOSURE EDGES FACILITATES CLOSING AND OPENING OF THE CLOSURE WHILE RETAINING A GOOD SEAL.
Inventors
- 👤 Parker W Hirtle
- 👤 Frederick Richard Ashby
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |