US3552495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire extinguisher
Assignee: Trane US Inc
•
Filing: 1968-06-06
•
Granted: 1971-01-05
•
Expires: 1988-06-06
Abstract
Abstract This covers a fire extinguisher having a container which is to be filled with fire-extinguishing liquid or gas or both, along with a gas or gasses for supercharging the contents of the container. One of the gases may be inert and may be used to detect leakage from the container. The equipment also includes a discharge valve having a rupturable disc which, in response to a space wave or waves, becomes ruptured to discharge the contents of the container. The equipment includes a filler valve through which the contents are supplied to the container, the filler valve also including a rupturable disc which, in response to pressure within the container exceeding a predetermined value, releases the contents of the container. The rupturable disc may be replaced by a temperature sensitive material which, in response to an elevated temperature of predetermined value, releases the contents of the container.
Inventors
- 👤 John Robert Fiero
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:23
CPC Classifications
A; A62; A62C; A62C35/00; A62C35/02; A62C35/08
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
89 words
A hermetically sealed container housing a fire-extinguishing fluid, a fluid for raising the pressure of the fire-extinguishing fluid to a superatmospheric pressure above 600 p.s.i., a substantially nonodorous fluid added to and mixed with the other fluids so as to be detectable upon leakage from the container, the pressure maintained within the container being so high that the fluids therein will be rapidly discharged when the container is released, and a common hermetically sealed port through which all of said fluids are rapidly and simultaneously released from the container.
Claim 2
Dependent Claim
89 words
A hermetically sealed container housing a fire-extinguishing fluid, a fluid for raising the pressure of the fire-extinguishing fluid to a superatmospheric pressure above 600 p.s.i., a substantially nonodorous fluid added to and mixed with the other fluids so as to be detectable upon leakage from the container, the pressure maintained within the container being so high that the fluids therein will be rapidly discharged when the container is released, and a common hermetically sealed port through which all of said fluids are rapidly and simultaneously released from the container.
Claim 3
Dependent Claim
26 words
A hermetically sealed container according to claim 1 in which the fluid is raised to a pressure in the range of approximately 600 to 2700 p.s.i.
Claim 4
Dependent Claim
31 words
A hermetically sealed container according to claim 1 including, in addition, a diaphragm or seal which is to be ruptured by a space wave to discharge the contents of the container.
Claim 5
Dependent Claim
31 words
A hermetically sealed container according to claim 1 including, in addition, a rupturable disc through which the contents of the container are dischargeable upon activation of a space wave or waves.
Claim 6
Dependent Claim
30 words
A hermetically sealed container according to claim 3 including, in addition, a cartridge which, when activated, generates a space wave of a magnitude which is sufficient to pierce the diaphragm.
Claim 7
Dependent Claim
15 words
A hermetically sealed container according to claim 5 in which the cartridge contains explosive materials.
Claim 8
Dependent Claim
30 words
A hermetically sealed container according to claim 6 in which the cartridge includes, in addition to the explosive materials a current carrying conductor which develops heat to explode said materials.
Claim 9
Dependent Claim
27 words
A hermetically sealed container according to claim 3 including, in addition, a generator producing a space wave for rupturing the diaphragm, and means for energizing the generator.
Claim 10
Dependent Claim
102 words
A fire extinguisher comprising a hermetically sealed container, a filler valve coupled to the container through which fire-extinguishing materials may be inserted and maintained at superatmospheric pressure, and a discharge valve also coupled to the container, said discharge valve including a rupturable disc in contact with said materials within said container which, when ruptured, discharges the materials of the container, the filler valve and the discharge valve both being hermetically sealed and integral with the container for supporting a pressure which substantially exceeds atmospheric pressure so that the materials within the container will be rapidly discharged upon the rupture of said disc.
Claim 11
Dependent Claim
102 words
A fire extinguisher comprising a hermetically sealed container, a filler valve coupled to the container through which fire-extinguishing materials may be inserted and maintained at superatmospheric pressure, and a discharge valve also coupled to the container, said discharge valve including a rupturable disc in contact with said materials within said container which, when ruptured, discharges the materials of the container, the filler valve and the discharge valve both being hermetically sealed and integral with the container for supporting a pressure which substantially exceeds atmospheric pressure so that the materials within the container will be rapidly discharged upon the rupture of said disc.
Claim 12
Dependent Claim
31 words
A fire extinguisher according to claim 9 in which the filler valve also includes a rupturable disc which is ruptured only when the pressure within the container exceeds a predetermined value.
Claim 13
Dependent Claim
43 words
A fire extinguisher according to claim 10 in which the disc included in the discharge valve is rupturable when the pressure within the container reaches a predetermined value which is different from thAt which will rupture the disc included in the filler valve.
Claim 14
Dependent Claim
86 words
A fire extinguisher comprising a container filled with fire-extinguishing fluid under superatmospheric pressure, two separate valves coupled to the container each having a rupturable disc, one of the discs being rupturable when the pressure within the container exceeds a predetermined value, the other of the discs being rupturable in response to a space wave which is generated by mechanism adjacent the container and which has an amplitude exceeding a predetermined value to release therethrough said fluid, the disc ruptured by the space wave releasing said fluid.
Claim 15
Dependent Claim
86 words
A fire extinguisher comprising a container filled with fire-extinguishing fluid under superatmospheric pressure, two separate valves coupled to the container each having a rupturable disc, one of the discs being rupturable when the pressure within the container exceeds a predetermined value, the other of the discs being rupturable in response to a space wave which is generated by mechanism adjacent the container and which has an amplitude exceeding a predetermined value to release therethrough said fluid, the disc ruptured by the space wave releasing said fluid.
Claim 16
Dependent Claim
42 words
A discharge valve structure for a hermetically sealed container housing fire-extinguishing materials under superatmospheric pressure, said discharge valve including a disc which, when activated by a space wave, will be ruptured to discharge the contents of the container through the discharge valve.
Claim 17
Dependent Claim
42 words
A discharge valve structure for a hermetically sealed container housing fire-extinguishing materials under superatmospheric pressure, said discharge valve including a disc which, when activated by a space wave, will be ruptured to discharge the contents of the container through the discharge valve.
Claim 18
Dependent Claim
33 words
A discharge valve according to claim 13 which includes, in addition, a screen adjacent to said disc to receive and retain particles of materials severed in response to the rupture of said disc.
Claim 19
Dependent Claim
62 words
A discharge valve for a container which hermetically seals fire-extinguishing materials under superatmospheric pressure, said discharge valve including a rupturable disc in physical contact with the materials within the container, and a cartridge containing an explosive powder which is adjacent said discharge valve and which, when activated, produces a space wave to rupture said disc to release said materials from said container.
Claim 20
Dependent Claim
62 words
A discharge valve for a container which hermetically seals fire-extinguishing materials under superatmospheric pressure, said discharge valve including a rupturable disc in physical contact with the materials within the container, and a cartridge containing an explosive powder which is adjacent said discharge valve and which, when activated, produces a space wave to rupture said disc to release said materials from said container.
Claim 21
Dependent Claim
37 words
A discharge valve according to claim 15 including, in addition, a screen to block the passage out of the discharge valve of the particles of said cartridge and said disc resulting from the activation of said cartridge.
Claim 22
Dependent Claim
32 words
A discharge valve according to claim 16 which includes, in addition, means for pointing the discharge valve in a predetermined direction and for maintaining the discharge valve pointed in said predetermined direction.
Claim 23
Independent Claim
31 words
The method for release of the contents of the container of a fire extinguisher which consists in generating a space wave and piercing the container in response to the space wave.
Claim 24
Independent Claim
31 words
The method for release of the contents of the container of a fire extinguisher which consists in generating a space wave and piercing the container in response to the space wave.
Claim 25
Dependent Claim
23 words
The method of claim 18 including also the step of directing the discharge of the contents of said container in a selected direction.
Claim 26
Dependent Claim
19 words
The method of claim 18 including also the step of transmitting a signal to activate the space wave generation.
Claim 27
Dependent Claim
134 words
A fire extinguisher comprising a container, a filler valve coupled to said container and having an aperture which is substantially perpendicular to the surface of the container at which the coupling is made, a disc sealed against the aperture immediately adjacent to the container to prevent the normal discharge of the contents of the container, a filling fixture coupled to the filler valve for filling and refilling the container, means for adjusting the filling fixture so that fire-extinguishing materials may be inserted under pressure through the filling fixture and through the aperture of the filler valve to enter said container, and means for hermetically sealing the container and the filler valve whenever said fire-extinguishing materials have been supplied to said container so that the fire-extinguishing materials are substantially continuously maintained at a superatmospheric pressure.
Claim 28
Dependent Claim
134 words
A fire extinguisher comprising a container, a filler valve coupled to said container and having an aperture which is substantially perpendicular to the surface of the container at which the coupling is made, a disc sealed against the aperture immediately adjacent to the container to prevent the normal discharge of the contents of the container, a filling fixture coupled to the filler valve for filling and refilling the container, means for adjusting the filling fixture so that fire-extinguishing materials may be inserted under pressure through the filling fixture and through the aperture of the filler valve to enter said container, and means for hermetically sealing the container and the filler valve whenever said fire-extinguishing materials have been supplied to said container so that the fire-extinguishing materials are substantially continuously maintained at a superatmospheric pressure.
Claim 29
Dependent Claim
27 words
A fire extinguisher according to claim 21 including, in addition, means for maintaining the fire-extinguishing materials under pressure while they are being inserted through the filling fixture.
Claim 30
Dependent Claim
29 words
A fire extinguisher according to claim 22 in which the pressure-maintaining means includes a dual grooved sleeve and a pair of O-rings retained within the grooves of said sleeve.
Claim 31
Dependent Claim
32 words
A fire extinguisher according to claim 23 including, in addition, a discharge valve also coupled to said container and having a rupturable disc which, when ruptured, discharges the contents of said container.
Claim 32
Dependent Claim
37 words
A fire extinguisher according to claim 24 iN which the discharge valve includes a swivel assembly which may be turned so as to change the axis of the discharge port of said discharge valve to predetermined directions.
Claim 33
Dependent Claim
41 words
A fire extinguisher according to claim 25 in which the discharge valve retains a cartridge which, when activated, produces a space wave to instantly rupture the disc of said discharge valve to allow the materials within the container to be discharged.
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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |