US3313315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water main service valve
Assignee: Dresser Industries Inc
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Filing: 1964-01-07
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Granted: 1967-04-11
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Expires: 1984-01-07
Abstract
No abstract record available.
Inventors
- 👤 Thomas F Rothwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:35
CPC Classifications
F; F16; F16L; F16L41/00; F16L41/04; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/612; Y10T137/6123; Y10T137/6161; Y10T137/6164; Y10T137/6167; Y10T408/00; Y10T408/68
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
A WATER MAIN TAPPING AND VALVE FITTING COMPRISING A HOLLOW CASING HAVING A PORTION PROVIDED WITH AN UNDERSIDE ADAPTED TO BE FIXED IN A FLUID-TIGHT CONDITION ON A PIPE TO BE TAPPED AND PROVIDING A VALVE CHAMBER HAVING AN OPENING RADIALLY INWARDLY AT SAID UNDERSIDE, SAID CASING HAVING A RADIALLY DIRECTED INTERNALLY THREADED PASSAGE OPPOSITE SAID OPENING AND IN COMMUNICATION WITH SAID CHAMBER AND A LATERALLY DIRECTED HOUSE EXTENSION IN DIRECT COMMUNICATION WITH SAID CHAMBER BETWEEN SAID PASSAGE AND OPENING FOR SELECTIVELY CONNECTING ANOTHER PIPE THERETO; A TAPPING TOOL HAVING A THREADED SHANK PORTION RECEIVED IN SAID INTERNALLY THREADED PASSAGE AND HAVING A CUTTING BIT AT AN INWARD END, SAID TAPPING TOOL BEING MOUNTED ROTATABLE IN SAID THREADED PASSAGE FOR FEEDING ADVANCEMENT BY THE THREAD THEREOF AXIALLY INWARDLY AGAINST SAID PIPE ON WHICH SAID CASING PORTION IS FIXED AND THEREBY EFFECT THE MAKING OF A HOLE THEREIN TO PROVIDE COMMUNICATION THROUGH SAID OPENING BETWEEN SAID CHAMBER AND SAID
Claim 2
Dependent Claim
158 words
A WATER MAIN TAPPING AND VALVE FITTING COMPRISING A HOLLOW CASING HAVING A PORTION PROVIDED WITH AN UNDERSIDE ADAPTED TO BE FIXED IN A FLUID-TIGHT CONDITION ON A PIPE TO BE TAPPED AND PROVIDING A VALVE CHAMBER HAVING AN OPENING RADIALLY INWARDLY AT SAID UNDERSIDE, SAID CASING HAVING A RADIALLY DIRECTED INTERNALLY THREADED PASSAGE OPPOSITE SAID OPENING AND IN COMMUNICATION WITH SAID CHAMBER AND A LATERALLY DIRECTED HOUSE EXTENSION IN DIRECT COMMUNICATION WITH SAID CHAMBER BETWEEN SAID PASSAGE AND OPENING FOR SELECTIVELY CONNECTING ANOTHER PIPE THERETO; A TAPPING TOOL HAVING A THREADED SHANK PORTION RECEIVED IN SAID INTERNALLY THREADED PASSAGE AND HAVING A CUTTING BIT AT AN INWARD END, SAID TAPPING TOOL BEING MOUNTED ROTATABLE IN SAID THREADED PASSAGE FOR FEEDING ADVANCEMENT BY THE THREAD THEREOF AXIALLY INWARDLY AGAINST SAID PIPE ON WHICH SAID CASING PORTION IS FIXED AND THEREBY EFFECT THE MAKING OF A HOLE THEREIN TO PROVIDE COMMUNICATION THROUGH SAID OPENING BETWEEN SAID CHAMBER AND SAID
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) | 1970-04-10 | 1970-10-10 | 1971-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-10 | 1974-10-10 | 1975-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-10 | 1978-10-10 | 1979-04-11 | $7700.00 | Window Closed / Lapsed |