US3032462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making a diaphragm
Assignee: Avox Systems Inc
•
Filing: 1955-11-04
•
Granted: 1962-05-01
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Expires: 1975-11-04
Abstract
No abstract record available.
Inventors
- 👤 Roy J Saporito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:16
CPC Classifications
F; F16; F16J; F16J3/00; F16J3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
THE PROCESS OF MAKING AN ANNULAR DIPHRAGM CONSISTING OF PRODUCING A SHEET OF SILICONE RUBBERY BY CALENDERING A QUINTITY OF SILICONE RUBBER BETWEEN POWER-DRIVEN ROLLS; OVERLAYING SAID SHET WITH A STRIP OF RAW FABRIC TO FORM A SANDWICH; CALENDERING SAID SHEET-STRIP SANDWICH BETWEEN A SECOND PAIR OF POWER-DRIVEN ROLLS WHICH ARE SPACED APART A CONSIDERABLY SMALLER DISTANCE THAN THE THICKNESS OF SAID SHEET-STRIP SANDWICH, AND OPERATE TO VERY FORCEABLY IMBEDED SAID DTRIP IN SAID SHEET; MECHANICALLY PRESSING SAIS SHEET-STRIP SANDWICH IN A TWO-PART, RIGID FORMED, DIAPHRAGM MOLD IN A DIRECTION PARALLEL TO ITS AXIS; AND THEN HEATING SAID SHEET-STRIP SANDWICH TO A TEMPERATURE BETWEEN 240* AND 260*F.
Claim 2
Dependent Claim
107 words
THE PROCESS OF MAKING AN ANNULAR DIPHRAGM CONSISTING OF PRODUCING A SHEET OF SILICONE RUBBERY BY CALENDERING A QUINTITY OF SILICONE RUBBER BETWEEN POWER-DRIVEN ROLLS; OVERLAYING SAID SHET WITH A STRIP OF RAW FABRIC TO FORM A SANDWICH; CALENDERING SAID SHEET-STRIP SANDWICH BETWEEN A SECOND PAIR OF POWER-DRIVEN ROLLS WHICH ARE SPACED APART A CONSIDERABLY SMALLER DISTANCE THAN THE THICKNESS OF SAID SHEET-STRIP SANDWICH, AND OPERATE TO VERY FORCEABLY IMBEDED SAID DTRIP IN SAID SHEET; MECHANICALLY PRESSING SAIS SHEET-STRIP SANDWICH IN A TWO-PART, RIGID FORMED, DIAPHRAGM MOLD IN A DIRECTION PARALLEL TO ITS AXIS; AND THEN HEATING SAID SHEET-STRIP SANDWICH TO A TEMPERATURE BETWEEN 240* AND 260*F.
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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) | 1965-04-30 | 1965-10-30 | 1966-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-30 | 1969-10-30 | 1970-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-30 | 1973-10-30 | 1974-05-01 | $7700.00 | Window Closed / Lapsed |