US3871614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Four way hydrant valve
Assignee: Individual
•
Filing: 1973-11-26
•
Granted: 1975-03-18
•
Expires: 1993-11-26
Abstract
Abstract A valve for controlling water to a fire hose having a main valve chamber with a butterfly valve, said chamber having an inlet and an outlet for 4 1/2 inch ID fire hose. A separate conduit having an inlet and an outlet for 2 1/2 inch ID fire hose has an intermediate opening communicating with said chamber upstream of the butterfly valve. Another valve closes said opening when the pressure at the inlet of said separate conduit exceeds the pressure in said main valve chamber.
Inventors
- 👤 Robert T Hughes
- 👤 R Hurley Matthews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:22
CPC Classifications
E; E03; E03B; E03B9/00; E03B9/02; F; F16; F16K; F16K27/00; F16K27/02; F16K27/0209; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/85978; Y10T137/86171; Y10T137/87265; Y10T137/87338; Y10T137/87523; Y10T137/87531; Y10T137/877; Y10T137/87788; Y10T137/87812
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
194 words
A valve system for controlling flow of water to a fire hose comprising a main valve body having a water inlet adapted to receive water from a fire hydrant and a water outlet adapted to feed water to a fire hose, a butterfly valve means in said body for controlling flow of water from said inlet to said outlet, a conduit having an inlet adapted for connection to a fire hose and an outlet also adapted for connection to a fire hose, the inlet and the outlet of said conduit being substantially coaxial to provide a direct straight path for the flow of water through the conduit whEreby to minimize pressure losses, said conduit having an opening intermediate of the inlet and the outlet of said conduit and in communication with said main valve body upstream of the butterfly valve to permit flow of water from said main valve body to said conduit, and valve means at said opening operable in response to higher pressure at the inlet of the conduit than exists in said main valve body for closing the opening that allows water flow from said main valve body to said conduit.
Claim 2
Dependent Claim
194 words
A valve system for controlling flow of water to a fire hose comprising a main valve body having a water inlet adapted to receive water from a fire hydrant and a water outlet adapted to feed water to a fire hose, a butterfly valve means in said body for controlling flow of water from said inlet to said outlet, a conduit having an inlet adapted for connection to a fire hose and an outlet also adapted for connection to a fire hose, the inlet and the outlet of said conduit being substantially coaxial to provide a direct straight path for the flow of water through the conduit whEreby to minimize pressure losses, said conduit having an opening intermediate of the inlet and the outlet of said conduit and in communication with said main valve body upstream of the butterfly valve to permit flow of water from said main valve body to said conduit, and valve means at said opening operable in response to higher pressure at the inlet of the conduit than exists in said main valve body for closing the opening that allows water flow from said main valve body to said conduit.
Claim 3
Dependent Claim
40 words
A valve system as defined in claim 1 having a handle outside the main valve body for controlling the position of the butterfly valve, the position of the handle being an indication whether the butterfly valve is open or closed.
Claim 4
Dependent Claim
19 words
A valve system as defined in claim 2 including latching means for holding the butterfly valve in open position.
Claim 5
Dependent Claim
18 words
A valve system as defined in claim 2 including latching means for holding the butterfly valve closed position.
Claim 6
Dependent Claim
31 words
A valve system as defined in claim 2 including latching means for holding the butterfly valve in open position and additional latching means for holding the butterfly valve in closed position.
Claim 7
Dependent Claim
37 words
A valve system as defined in claim 5 in which the inlet and outlet of said chamber are coaxial to provide a direct straight path for the flow of water through the conduit whereby to minimize losses.
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) | 1978-03-17 | 1978-09-16 | 1979-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-17 | 1982-09-16 | 1983-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-17 | 1986-09-16 | 1987-03-18 | $7700.00 | Window Closed / Lapsed |