US3331397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrant breaker flange
Assignee: Mueller Co
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Filing: 1964-05-20
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Granted: 1967-07-18
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Expires: 1984-05-20
Abstract
No abstract record available.
Inventors
- 👤 Frank H Mueller
- 👤 Oscar E Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:58
CPC Classifications
F; F16; F16L; F16L23/00; F16L23/02; E; E03; E03B; E03B9/00; E03B9/02; E03B9/04; F16B; F16B2200/00; F16B2200/50; F16B2200/506; F16B2200/63; Y; Y10; Y10T; Y10T137/00; Y10T137/8811; Y10T403/00; Y10T403/57
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A SAFETY COUPLING FOR FIRE HYDRANTS, COMPRISING: UPPER AND LOWER HYDRANT BARREL SECTIONS HAVING MATING ENDS PROVIDED WITH PERIPHERAL FLANGES; A FRANGIBLE SECTIONAL ANNULUS ENGAGED BENEATH THE UNDERSURFACE OF SAID PERIPHERAL FLANGE ON SAID LOWER BARREL SECTION; AND BOLT MEANS CONNECTING SAID ANNULUS TO SAID FLANGE ON SAID UPPER SECTION, SAID ANNULUS BEING WEAKENED IN AN ANNULAR REGION THEREOF RADIALLY INWARDLY OF SAID BOLT MEANS SO AS TO BE FRANGIBLE BY UPWARD MOVEMENT OF SAID UPPER BARREL SECTION RELATIVE TO SAID LOWER SECTION, ONE OF SAID SECTIONS BEING PROVIDED WITH AN INNER CIRCUMFERENTIAL RECESS IN ITS SAID MATING END, SAID RECESS HAVING AN UPWARDLY AND INWARDLY INCLINED SIDE WALL, AND THE OTHER OF SAID SECTIONS BEING PROVIDED WITH AN ANNULAR END PORTION HAVING AN UPWARDLY AND IN-
Claim 2
Dependent Claim
127 words
A SAFETY COUPLING FOR FIRE HYDRANTS, COMPRISING: UPPER AND LOWER HYDRANT BARREL SECTIONS HAVING MATING ENDS PROVIDED WITH PERIPHERAL FLANGES; A FRANGIBLE SECTIONAL ANNULUS ENGAGED BENEATH THE UNDERSURFACE OF SAID PERIPHERAL FLANGE ON SAID LOWER BARREL SECTION; AND BOLT MEANS CONNECTING SAID ANNULUS TO SAID FLANGE ON SAID UPPER SECTION, SAID ANNULUS BEING WEAKENED IN AN ANNULAR REGION THEREOF RADIALLY INWARDLY OF SAID BOLT MEANS SO AS TO BE FRANGIBLE BY UPWARD MOVEMENT OF SAID UPPER BARREL SECTION RELATIVE TO SAID LOWER SECTION, ONE OF SAID SECTIONS BEING PROVIDED WITH AN INNER CIRCUMFERENTIAL RECESS IN ITS SAID MATING END, SAID RECESS HAVING AN UPWARDLY AND INWARDLY INCLINED SIDE WALL, AND THE OTHER OF SAID SECTIONS BEING PROVIDED WITH AN ANNULAR END PORTION HAVING AN UPWARDLY AND IN-
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) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |