US3164388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packing apparatus for stuffing boxes
Assignee: Individual
•
Filing: 1961-03-27
•
Granted: 1965-01-05
•
Expires: 1981-03-27
Abstract
No abstract record available.
Inventors
- 👤 Warren E Ellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:54
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/18; F16J15/182
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A STUFFING BOX PACKING MEMBER COMPRISING A BODY OF RESILIENT STUFFING MATERIAL HAVING A PAIR OF END SURFACES, AN OUTER STUFFING BOX ENGAGING SURFACE, AND AN INNER SURFACE DEFINING AN OPENING THERETHROUGH EXTENDING BETWEEN SAID END SURFACES FOR SLIDABLY RECEIVING A RECIPROCABLE ROD; CONTINUOUS GROOVE MEANS ON SAID INNER SURFACE PRESENTING A RESERVOIR FOR LUBRICATING FLUID; CONTINUOUS GROOVE MEANS ON SAID OUTER SURFACE PRESENTING A RESERVOIR FOR LUBRICATING FLUID; AND PASSAGE MEANS IN SAID BODY PLACING SAID RESERVOIRS IN COMMUNICATION WITH EACH OTHER.
Claim 2
Dependent Claim
83 words
A STUFFING BOX PACKING MEMBER COMPRISING A BODY OF RESILIENT STUFFING MATERIAL HAVING A PAIR OF END SURFACES, AN OUTER STUFFING BOX ENGAGING SURFACE, AND AN INNER SURFACE DEFINING AN OPENING THERETHROUGH EXTENDING BETWEEN SAID END SURFACES FOR SLIDABLY RECEIVING A RECIPROCABLE ROD; CONTINUOUS GROOVE MEANS ON SAID INNER SURFACE PRESENTING A RESERVOIR FOR LUBRICATING FLUID; CONTINUOUS GROOVE MEANS ON SAID OUTER SURFACE PRESENTING A RESERVOIR FOR LUBRICATING FLUID; AND PASSAGE MEANS IN SAID BODY PLACING SAID RESERVOIRS IN COMMUNICATION WITH EACH OTHER.
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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) | 1968-01-05 | 1968-07-06 | 1969-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-05 | 1972-07-06 | 1973-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-05 | 1976-07-06 | 1977-01-05 | $7700.00 | Window Closed / Lapsed |