US4043397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire fighting equipment
Assignee: Individual
•
Filing: 1975-09-22
•
Granted: 1977-08-23
•
Expires: 1995-09-22
Abstract
Abstract Fire fighting equipment consisting of a water flow pipe, connected at one end to a pressurized water source, and having an 180° bend at its other end which carries a novelly constructed spray nozzle and having anti-swirl elements in the flow passages. The method of use is also disclosed.
Inventors
- 👤 Richard A. Glowienke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:50
CPC Classifications
A; A62; A62C; A62C99/00; A62C99/0009; A62C99/0072; A62C2/00; A62C2/06; A62C2/08
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
128 words
The method of preventing looping of billowing flames on a floor level of a building structure, locating a fluid flow pipe having a reverse bend of 180° at its discharge end on a floor level below said first mentioned floor level, connecting the other end of said pipe to a source of pressurized water, connecting a spray nozzle to the bent end of said pipe and at an angle thereto, extending the pipe through a wall opening to locate the nozzle outside the building structure, and discharging a substantially solid wall of water in the form of a spray from said nozzle without back pressure onto the building structure above the first mentioned floor level so as to overlie and contain the billowing flames and prevent their looping.
Claim 2
Independent Claim
128 words
The method of preventing looping of billowing flames on a floor level of a building structure, locating a fluid flow pipe having a reverse bend of 180° at its discharge end on a floor level below said first mentioned floor level, connecting the other end of said pipe to a source of pressurized water, connecting a spray nozzle to the bent end of said pipe and at an angle thereto, extending the pipe through a wall opening to locate the nozzle outside the building structure, and discharging a substantially solid wall of water in the form of a spray from said nozzle without back pressure onto the building structure above the first mentioned floor level so as to overlie and contain the billowing flames and prevent their looping.
Claim 3
Dependent Claim
171 words
Hand-held equipment for use in fighting fire in a high-rise building comprising, a length of rigid pipe through which pressurized non-flamable fluid is to be flowed, a hose connection at the inlet end of said pipe, a 180° bend adjacent to the outlet end of said pipe to equalize the effect of pressure in the pipe, and a bend of about 70° relative to the axis of the pipe at the discharge end of the 180° bend, said 70° bend lying in the same plane as the 180° bend, a spray nozzle, said nozzle having a fan-shaped discharge end including flat sides and a tubular inlet end, said inlet end being connected to the bent pipe end, a partition in said discharge end of said nozzle midway between and parallel to the nozzle flat sides, and a plurality of webs in said discharge end disposed at right angles to and on both sides of the partition which together with the partition divide the discharge end into two rows of discharge orifices.
Claim 4
Dependent Claim
171 words
Hand-held equipment for use in fighting fire in a high-rise building comprising, a length of rigid pipe through which pressurized non-flamable fluid is to be flowed, a hose connection at the inlet end of said pipe, a 180° bend adjacent to the outlet end of said pipe to equalize the effect of pressure in the pipe, and a bend of about 70° relative to the axis of the pipe at the discharge end of the 180° bend, said 70° bend lying in the same plane as the 180° bend, a spray nozzle, said nozzle having a fan-shaped discharge end including flat sides and a tubular inlet end, said inlet end being connected to the bent pipe end, a partition in said discharge end of said nozzle midway between and parallel to the nozzle flat sides, and a plurality of webs in said discharge end disposed at right angles to and on both sides of the partition which together with the partition divide the discharge end into two rows of discharge orifices.
Claim 5
Dependent Claim
22 words
The equipment recited in claim 2, wherein the webs are of different selected lengths and have their outer ends in substantial register.
Claim 6
Dependent Claim
18 words
The equipment recited in claim 2, wherein the spray nozzle has an anti-swirl baffle in its tubular inlet.
References Cited (Backward Citations)
FR960452A
Cited
US646072A
Cited
US1557477A
Cited
US2501639A
Cited
US2684690A
Cited
US2609240A
Cited
US2910711A
Cited
US3069100A
Cited
US3041748A
Cited
US3206126A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-22 | 1981-02-21 | 1981-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-22 | 1985-02-21 | 1985-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-22 | 1989-02-21 | 1989-08-23 | $7700.00 | Window Closed / Lapsed |