Patent US4343435A successfully refreshed from Google Patents.
US4343435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire hydrant diffuser
Assignee: Individual
•
Filing: 1980-11-13
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Granted: 1982-08-10
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Expires: 2000-11-13
Abstract
Abstract A fire hydrant diffuser comprising a flared housing rectangular in cross section having disposed therein a pair of water diffusing members in opposed relation angled to form a V-configuration and having a stepped mesh structure positioned relative to the direction of flow of water to present narrow obstructing slits for the passage of the water.
Inventors
- 👤 Ronald V. Anderton
- 👤 Donald S. Atwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:31
CPC Classifications
E; E03; E03B; E03B9/00; E03B9/02; E03B9/16; B; B05; B05B; B05B1/00; B05B1/26; B05B1/262
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
176 words
A fire hydrant diffuser comprising a housing having an inlet and an outlet; said housing flaring in the direction of said outlet; a pair of screen members being disposed within said housing in opposed relation extending transversely of said housing and being secured thereto; said screen members being angled relative to each other and coverging at a point spaced from said inlet; said screen members being formed as an expanded mesh; the openings of said mesh being defined by interconnected wall portions of said screen members; corresponding wall portions of said screen members being disposed in planes at right angles to the direction of water passing through said housing and corresponding of successive of said wall portions in the direction of the outlet of said housing being in outward stepped relation and said openings formed by said wall portions being disposed in a corresponding stepped relation whereby, said wall portions form vertical barriers receiving directly the thrust of water passing through said housing blunting said thrust prior to the passage of said water through said openings.
Claim 2
Dependent Claim
176 words
A fire hydrant diffuser comprising a housing having an inlet and an outlet; said housing flaring in the direction of said outlet; a pair of screen members being disposed within said housing in opposed relation extending transversely of said housing and being secured thereto; said screen members being angled relative to each other and coverging at a point spaced from said inlet; said screen members being formed as an expanded mesh; the openings of said mesh being defined by interconnected wall portions of said screen members; corresponding wall portions of said screen members being disposed in planes at right angles to the direction of water passing through said housing and corresponding of successive of said wall portions in the direction of the outlet of said housing being in outward stepped relation and said openings formed by said wall portions being disposed in a corresponding stepped relation whereby, said wall portions form vertical barriers receiving directly the thrust of water passing through said housing blunting said thrust prior to the passage of said water through said openings.
Claim 3
Dependent Claim
21 words
The structure set forth in claim 1, wherein said housing is substantially rectangular in cross section having pairs of opposed walls.
Claim 4
Dependent Claim
17 words
The structure of claim 2, wherein said screen members are secured to a pair of opposed walls.
Claim 5
Dependent Claim
23 words
The structure set forth in claim 2, wherein said pairs of opposed walls flaring in the direction of said outlet of said housing.
Claim 6
Dependent Claim
34 words
The structure set forth in claim 1, wherein said openings formed in said screen members are disposed to be in planes lying substantially in the direction of the passage of water through said housing.
References 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) | 1985-08-09 | 1986-02-08 | 1986-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-08-09 | 1990-02-08 | 1990-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-08-09 | 1994-02-08 | 1994-08-10 | $7700.00 | Window Closed / Lapsed |