Tapping sleeve
Abstract
Abstract A TAPPING SLEEVE FOR LARGE DIAMETER CONDUITS COMPRISED OF A CURVED UPPER BODY HAVING AN OPENING FIXED TO A TUBULAR OUTLET MEMBER. THE END PORTIONS OF THE BODY AREA PROVIDED WITH LUG MEMBERS FOR RETAINING BOLTS CONNECTED TO A LOWER BODY MEMBER OR BALES FOR HOLDING THE SLEEVE ON A PIPE. THE LUG MEMBERS ARE INTEGRAL ELONGATED METAL PIECES WITH SEPARATE ROWS OF SLOTS AND OPENINGS THAT ARE ALIGNED WHEN EACH LUG MEMBER IS BENT ALONG A LONGITUDINAL LINE BETWEEN THE SLOTS AND OPENINGS. THE UPPER BODY IS CONSTRUCTED WITH A SLOT ON ITS INNER SURFACE AROUND SAID OPENING FOR A RESILIENT SEALING MEMBER THAT FORMS A FLUID TIGHT SEAL BETWEEN THE BODY SECTION AND THE CONDUIT TO WHICH THE SLEEVE IS ATTACHED.
Inventors
- 👤 Peter E Ferrai
- 👤 Robert B Williams
- 👤 Charles W Livingston
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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |