Patent US3129948A successfully refreshed from Google Patents.
US3129948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packing gland
Assignee: Menasco Manufacturing Co
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Filing: 1961-11-02
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Granted: 1964-04-21
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Expires: 1981-11-02
Abstract
No abstract record available.
Inventors
- 👤 Giles A Kendall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:51
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/18; F16J15/184; F16J15/185
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
215 words
A PACKING GLAND FOR SEALING A MOVABLE ROD RELATIVE TO A CYLINDER ADAPTED TO CONTAIN FLUID UNDER PRESSURE, COMPRISING: MEANS DEFINING A COUNTERBORE IN SAID VESSEL ADJACENT TO AN OPEN END THEREOF AND COMMUNICATING BETWEEN THE INTERIOR OF SAID VESSEL AND SAID OPEN END; AND ANNULAR MEMBER FITTING SAID COUNTERBORE AND BOTTOMED IN SAID COUNTERBORE AND DEFINING AN ANNULAR SPACE SURROUNDING SAID MOVABLE ROD; A GLAND NUT RETAINING SAID ANNULAR MEMBER IN SAID COUNTERBORE, SAID GLAND NUT HAVING A THREADED CONNECTION TO SAID CYLINDER AND A CIRCUMFERENTIALLY REDUCED END FITTING IN SAID ANNULAR SPACE; A FIRST ANNULAR SEALING RING OF COMPRESSIBLE MATERIAL IN SAID ANNULAR SPACE AND HAVING ONE END BEARING AGAINST SAID GLAND NUT; AN ANNULAR SLEEVE MEMBER MOVABLE IN SAID ANNULAR SPACE AND HAVING ONE END BEARING AGAINST SAID ANNULAR SEAL RING; SPRING MEANS IN SAID COUNTERBORE AND BIASING SAID ONE END OF SAID ANNULAR SLEEVE TO BEAR AGAINST SAID FIRST ANNULAR SEALING RING, SAID FIRST SEALING RING BEING RESPONSIVE TO ADDITION OF SAID SPRING MEANS TO THE PRESSURE APPLIED BY THE FLUID UNDER PRESSURE AGAINST THE DIFFERENTIAL AREA BETWEEN THE OUTER AREA OF SAID SLEEVE AND THE OUTER DIAMETER OF SAID ROD FOR SEALING SAID ANNULAR SPACE; AND SECOND SEALING MEANS FOR SEALING SAID GLAND NUT TO SAID COUNTERBORE OF SAID CYLINDER.
Claim 2
Dependent Claim
215 words
A PACKING GLAND FOR SEALING A MOVABLE ROD RELATIVE TO A CYLINDER ADAPTED TO CONTAIN FLUID UNDER PRESSURE, COMPRISING: MEANS DEFINING A COUNTERBORE IN SAID VESSEL ADJACENT TO AN OPEN END THEREOF AND COMMUNICATING BETWEEN THE INTERIOR OF SAID VESSEL AND SAID OPEN END; AND ANNULAR MEMBER FITTING SAID COUNTERBORE AND BOTTOMED IN SAID COUNTERBORE AND DEFINING AN ANNULAR SPACE SURROUNDING SAID MOVABLE ROD; A GLAND NUT RETAINING SAID ANNULAR MEMBER IN SAID COUNTERBORE, SAID GLAND NUT HAVING A THREADED CONNECTION TO SAID CYLINDER AND A CIRCUMFERENTIALLY REDUCED END FITTING IN SAID ANNULAR SPACE; A FIRST ANNULAR SEALING RING OF COMPRESSIBLE MATERIAL IN SAID ANNULAR SPACE AND HAVING ONE END BEARING AGAINST SAID GLAND NUT; AN ANNULAR SLEEVE MEMBER MOVABLE IN SAID ANNULAR SPACE AND HAVING ONE END BEARING AGAINST SAID ANNULAR SEAL RING; SPRING MEANS IN SAID COUNTERBORE AND BIASING SAID ONE END OF SAID ANNULAR SLEEVE TO BEAR AGAINST SAID FIRST ANNULAR SEALING RING, SAID FIRST SEALING RING BEING RESPONSIVE TO ADDITION OF SAID SPRING MEANS TO THE PRESSURE APPLIED BY THE FLUID UNDER PRESSURE AGAINST THE DIFFERENTIAL AREA BETWEEN THE OUTER AREA OF SAID SLEEVE AND THE OUTER DIAMETER OF SAID ROD FOR SEALING SAID ANNULAR SPACE; AND SECOND SEALING MEANS FOR SEALING SAID GLAND NUT TO SAID COUNTERBORE OF SAID CYLINDER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |