US3084946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reciprocating rod packing
Assignee: LEO W FAGG
•
Filing: 1959-07-16
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Granted: 1963-04-09
•
Expires: 1979-07-16
Abstract
No abstract record available.
Inventors
- 👤 Chester L Sharp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:36
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/18; F16J15/184; E; E21; E21B; E21B33/00; E21B33/02; E21B33/08; F04; F04B; F04B53/00; F04B53/16; F04B53/162; F04B53/164
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
343 words
A RECIPROCATING ROD PACKING DEVICE COMPRISING: AN ANNULAR BODY SURROUNDING THE ROD HAVING AN UPPER END AND A LOWER END AND ARRANGED CONCENTRICALLY AROUND THE ROD; AN UPPER, HOLLOW, SUBSTANTIALLY FRUSTO-CONICAL RESILIENT PACKING RING IN THE BODY AROUND THE ROD HAVING A LOWER AND OUTER PERIPHERAL SURFACE ENGAGING THE INNER SURFACE OF THE BODY AND HAVING ITS INNER AND UPPER CYLINDRICAL SURFACE AT ITS PEAK PORTION SEALINGLY ENGAGING THE ROD, THE UPPER AND LOWER SURFACES OF SAID PEAK PORTION JOINING THE UPPER AND LOWER ENDS OF SAID CYLINDRICAL SURFACE BEING EXTENDED HORIZONTALLY FROM THE ROD TO FORM A HORIZONTALLY EXTENDING FLEXIBLE LIP SEALINGLY ENGAGING THE ROD; FOLLOWER MEANS ADJUSTABLY SECURED TO THE UPPER END OF THE BODY AND ARRANGED TO FORCE THE INNER AND OUTER PORTIONS OF THE PACKING RING DOWNWARDLY IN THE BODY TO INCREASE THE SEAL OF THE PEAK PORTION OF THE PACKING RING AROUND THE ROD AND ACCOMMODATE WEAR OF THE PEAK PORTION OF THE PACKING RING; AND A LOWER, RESILIENT SUPPORTING PACKING RING IN THE BODY AROUND THE ROD UNDERNEATH THE UPPER PACKING RING TO PREVENT COLLAPSE OF THE UPPER PACKING RING, SAID LOWER PACKING RING HAVING A FRUSTO-CONICAL UPPER AND OUTER SURFACE ACTING WITH THE INNER FRUSTOCONICAL SURFACE OF THE UPPER PACKING RING FROM THE LOWER OUTER END OF THE UPPER PACKING RING INTO PROXIMITY WITH THE PEAK PORTION OF THE UPPER PACKING RING, AND HAVING A CYLINDRICAL INNER SURFACE IN CONTACT WITH THE ROD FROM THE LOWER END OF THE UPPER PACKING RING INTO PROXIMITY WITH THE PEAK UPPER PACKING RING FROM THE ROD AND PREVENT COLLAPSE OF THE UPPER PACKING RING, THE UPPER END OF LASPE OF THE UPPER PACKING RING, THE UPPER END OF SAID LOWER PACKING RING BEING SUBSTANTIALLY FLAT AND TERMINATING IN DOWNWARDLY SPACED RELATION FROM THE PEAK PORTION OF THE UPPER PACKING RING TO PROVIDE A LUBRICATING RESERVOIR BETWEEN THE UPPER AND LOWER PACKING RINGS AROUND THE ROD AND TO PROVIDE A SPACE FOR DOWNWARD FLEXING OF THE PEAK PORTION OF THE UPPER PACKING RING UPON DOWNWARD MOVEMENT OF THE FOLLOWER MEANS.
Claim 2
Dependent Claim
343 words
A RECIPROCATING ROD PACKING DEVICE COMPRISING: AN ANNULAR BODY SURROUNDING THE ROD HAVING AN UPPER END AND A LOWER END AND ARRANGED CONCENTRICALLY AROUND THE ROD; AN UPPER, HOLLOW, SUBSTANTIALLY FRUSTO-CONICAL RESILIENT PACKING RING IN THE BODY AROUND THE ROD HAVING A LOWER AND OUTER PERIPHERAL SURFACE ENGAGING THE INNER SURFACE OF THE BODY AND HAVING ITS INNER AND UPPER CYLINDRICAL SURFACE AT ITS PEAK PORTION SEALINGLY ENGAGING THE ROD, THE UPPER AND LOWER SURFACES OF SAID PEAK PORTION JOINING THE UPPER AND LOWER ENDS OF SAID CYLINDRICAL SURFACE BEING EXTENDED HORIZONTALLY FROM THE ROD TO FORM A HORIZONTALLY EXTENDING FLEXIBLE LIP SEALINGLY ENGAGING THE ROD; FOLLOWER MEANS ADJUSTABLY SECURED TO THE UPPER END OF THE BODY AND ARRANGED TO FORCE THE INNER AND OUTER PORTIONS OF THE PACKING RING DOWNWARDLY IN THE BODY TO INCREASE THE SEAL OF THE PEAK PORTION OF THE PACKING RING AROUND THE ROD AND ACCOMMODATE WEAR OF THE PEAK PORTION OF THE PACKING RING; AND A LOWER, RESILIENT SUPPORTING PACKING RING IN THE BODY AROUND THE ROD UNDERNEATH THE UPPER PACKING RING TO PREVENT COLLAPSE OF THE UPPER PACKING RING, SAID LOWER PACKING RING HAVING A FRUSTO-CONICAL UPPER AND OUTER SURFACE ACTING WITH THE INNER FRUSTOCONICAL SURFACE OF THE UPPER PACKING RING FROM THE LOWER OUTER END OF THE UPPER PACKING RING INTO PROXIMITY WITH THE PEAK PORTION OF THE UPPER PACKING RING, AND HAVING A CYLINDRICAL INNER SURFACE IN CONTACT WITH THE ROD FROM THE LOWER END OF THE UPPER PACKING RING INTO PROXIMITY WITH THE PEAK UPPER PACKING RING FROM THE ROD AND PREVENT COLLAPSE OF THE UPPER PACKING RING, THE UPPER END OF LASPE OF THE UPPER PACKING RING, THE UPPER END OF SAID LOWER PACKING RING BEING SUBSTANTIALLY FLAT AND TERMINATING IN DOWNWARDLY SPACED RELATION FROM THE PEAK PORTION OF THE UPPER PACKING RING TO PROVIDE A LUBRICATING RESERVOIR BETWEEN THE UPPER AND LOWER PACKING RINGS AROUND THE ROD AND TO PROVIDE A SPACE FOR DOWNWARD FLEXING OF THE PEAK PORTION OF THE UPPER PACKING RING UPON DOWNWARD MOVEMENT OF THE FOLLOWER MEANS.
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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) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |