Patent US4047572A successfully refreshed from Google Patents.
US4047572A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle fire suppression access port
Assignee: Caterpillar Inc
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Filing: 1976-05-17
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Granted: 1977-09-13
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Expires: 1996-05-17
Abstract
Abstract A fire suppression access port is provided in the various plates, doors or covers of a vehicle for ready application of a fire suppressant to areas of the vehicle behind said plates, doors or covers where a fire might erupt. The access port includes a distortable diaphram through which a fire extinguisher nozzle can penetrate together with a tapered throat for guiding the nozzle into a somewhat sealed condition in the port and a nozzle assembly with a spring loaded cap, which nozzle assembly is directed toward the location where a fire is most likely to start.
Inventors
- 👤 William Richard Stary
- 👤 David Merrill Shaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:46
CPC Classifications
A; A62; A62C; A62C3/00
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
86 words
In a fire control apparatus for use in extinguishing fires in a closed compartment, a panel defining one wall of said closed compartment, an access port communicating through said panel into said compartment, said access port comprising a distortable and slotted diaphram covering an opening in said panel, a nozzle assembly aligned with the opening and carried by the panel interior of said compartment whereby fire suppressant directed through the access port and through the nozzle assembly will act to suppress a fire in the compartment.
Claim 2
Dependent Claim
86 words
In a fire control apparatus for use in extinguishing fires in a closed compartment, a panel defining one wall of said closed compartment, an access port communicating through said panel into said compartment, said access port comprising a distortable and slotted diaphram covering an opening in said panel, a nozzle assembly aligned with the opening and carried by the panel interior of said compartment whereby fire suppressant directed through the access port and through the nozzle assembly will act to suppress a fire in the compartment.
Claim 3
Dependent Claim
35 words
In an apparatus as claimed in claim 1 wherein said nozzle assembly is shaped to direct the outlet of the nozzle assembly toward the area in the compartment most likely to generate an open flame.
Claim 4
Dependent Claim
46 words
In an apparatus as claimed in claim 1 wherein a flanged sleeve is bolted to the panel to secure the diaphragm in sealing condition over the opening in the panel and wherein said nozzle assembly includes a nozzle connected through an adaptor to said flanged sleeve.
Claim 5
Dependent Claim
29 words
In an apparatus as claimed in claim 3 wherein said adaptor has an inwardly converging tapered portion for guiding the outlet of a fire extinguisher into sealing condition therein.
Claim 6
Dependent Claim
123 words
In a fire control apparatus for use in extinguishing fires in a closed compartment, said closed compartment containing a source of fire, panel means carried by a wall of said compartment for use in gaining access to said compartments, an access port carried by one of said panel means, said access port comprising an opening through the panel, is distortable diaphram covering the opening in said panel, a flanged sleeve bolted to the panel to secure the diaphram in sealing condition over the opening in the panel, an adaptor secured to said sleeve and a nozzle connected to said adaptor and having an outlet pointing into said closed compartment whereby a fire suppressant may be directed through said access port into said compartment.
Claim 7
Dependent Claim
123 words
In a fire control apparatus for use in extinguishing fires in a closed compartment, said closed compartment containing a source of fire, panel means carried by a wall of said compartment for use in gaining access to said compartments, an access port carried by one of said panel means, said access port comprising an opening through the panel, is distortable diaphram covering the opening in said panel, a flanged sleeve bolted to the panel to secure the diaphram in sealing condition over the opening in the panel, an adaptor secured to said sleeve and a nozzle connected to said adaptor and having an outlet pointing into said closed compartment whereby a fire suppressant may be directed through said access port into said compartment.
Claim 8
Dependent Claim
89 words
In a vehicle having an engine with auxilliary equipment operatively connected thereto, panel means for enclosing a compartment containing said engine and said accessory equipment, an access port carried by one of said panel means, said access port comprising an opening through said panel means, a distortable diaphram covering the opening in said panel means and, a nozzle assembly aligned with the diaphram and the opening and carried by the panel means whereby fire suppressant may be directed through the diaphram and through the nozzle assembly into said compartment.
Claim 9
Dependent Claim
89 words
In a vehicle having an engine with auxilliary equipment operatively connected thereto, panel means for enclosing a compartment containing said engine and said accessory equipment, an access port carried by one of said panel means, said access port comprising an opening through said panel means, a distortable diaphram covering the opening in said panel means and, a nozzle assembly aligned with the diaphram and the opening and carried by the panel means whereby fire suppressant may be directed through the diaphram and through the nozzle assembly into said compartment.
Claim 10
Dependent Claim
35 words
In a vehicle as claimed in claim 6 wherein said nozzle assembly is shaped to direct the opening of the nozzle assembly toward the area in the compartment most likely to generate an open flame.
Claim 11
Dependent Claim
45 words
A vehicle as claimed in claim 6 wherein a flanged sleeve is bolted to the panel to secure the diaphram in sealing condition over the opening in the panel and wherein said nozzle assembly comprises a nozzle connected through an adaptor to said flanged sleeve.
Claim 12
Dependent Claim
28 words
In a vehicle as claimed in claim 8 wherein said adaptor has an inwardly tapered portion for guiding the outlet of a fire extingisher into sealing condition therein.
Claim 13
Dependent Claim
41 words
In a vehicle as claimed in claim 8 wherein said nozzle has a spring urged cap for closing the outlet opening of the nozzle, said cap being opened against the urging of the spring under the pressure of the fire suppressant.
References Cited (Backward Citations)
US676366A
Cited
US2857005A
Cited
US3354508A
Cited
US3729031A
Cited
US3897810A
Cited
US3972373A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-12 | 1981-03-14 | 1981-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-12 | 1985-03-14 | 1985-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-12 | 1989-03-14 | 1989-09-13 | $7700.00 | Window Closed / Lapsed |