US4224994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single control for gas actuated fire extinguishers
Assignee: Deere and Co
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Filing: 1979-06-21
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Granted: 1980-09-30
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Expires: 1999-06-21
Abstract
Abstract The discharge apparatus is used in conjunction with a fire suppression system and includes a plurality of gas cartridges communicating with one or more fire extinguishing tanks. The discharge apparatus includes a first cylinder-piston device which upon activation punctures a diaphragm of a gas cartridge. Gas released from the first gas cartridge pressurizes a related fire extinguishing tanks to cause extinguishing chemicals to be discharged. A small portion of the gas released from the first gas cartridge is responsible for the activation of a second cylinder-piston device associated with a second gas cartridge to cause the release of gas. The gas released from the second gas cartridge pressurizes a related fire extinguishing tank to cause extinguishing chemical to be discharged.
Inventors
- 👤 Melvin N. Tone
- 👤 Larry J. Zimmer
- 👤 James W. Jewett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:54
CPC Classifications
A; A62; A62C; A62C35/00; A62C35/02; A62C13/00; A62C13/66; A62C13/70
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
213 words
An apparatus comprising: (a) a plurality of gas cartridges, each of said gas cartridges containing a pressure influenced gas and a puncturable diaphragm to permit release of said gas; (b) a plurality of extinguishing tanks; (c) a plurality of cylinder-pistons, each of said cylinder-pistons slidably containing a piston having a piston head located in a first chamber of said cylinder-piston and a piston rod fixably mounted to said piston head and extending into a second chamber of said cylinder-piston, each of said cylinder-pistons being fixably mounted to an associated gas cartridge such that slidable movement of said piston can cause said piston rod to puncture said diaphragm of said associated gas cartridge; (d) first means for actuating said piston of one of said cylinder-pistons to puncture said diaphragm of said associated gas cartridge; (e) second means to conduct a portion of said released gas from said associated gas cartridge to at least one of said extinguishing tanks, said second means to also connect said cylinder-pistons such that a portion of the gas released by said one of said cylinder-pistons is conducted to another of said cylinder-pistons to be received in a manner to move the piston to rupture its diaphragm to cause its associated gas cartridge to release gas to another extinguishing tank.
Claim 2
Independent Claim
213 words
An apparatus comprising: (a) a plurality of gas cartridges, each of said gas cartridges containing a pressure influenced gas and a puncturable diaphragm to permit release of said gas; (b) a plurality of extinguishing tanks; (c) a plurality of cylinder-pistons, each of said cylinder-pistons slidably containing a piston having a piston head located in a first chamber of said cylinder-piston and a piston rod fixably mounted to said piston head and extending into a second chamber of said cylinder-piston, each of said cylinder-pistons being fixably mounted to an associated gas cartridge such that slidable movement of said piston can cause said piston rod to puncture said diaphragm of said associated gas cartridge; (d) first means for actuating said piston of one of said cylinder-pistons to puncture said diaphragm of said associated gas cartridge; (e) second means to conduct a portion of said released gas from said associated gas cartridge to at least one of said extinguishing tanks, said second means to also connect said cylinder-pistons such that a portion of the gas released by said one of said cylinder-pistons is conducted to another of said cylinder-pistons to be received in a manner to move the piston to rupture its diaphragm to cause its associated gas cartridge to release gas to another extinguishing tank.
Claim 3
Dependent Claim
166 words
Apparatus as claimed in claim 1, wherein said second means comprises: (a) a plurality of first conduits, one end of each of said first conduits fixably mounted to and communicating with said second chamber of one of said cylinder-pistons; (b) a plurality of second conduits, one end of each of said second conduits fixably mounted to and communicating with said first chamber of one of said cylinder-piston such that a pressure influenced gas conducted by said second conduit can enter said first chamber to cause said piston to slidably move to puncture said diaphragm of said affixed gas cartridge; (c) a plurality of T-joints each having the other end of one of said first and second conduits fixably mounted into a T-joint opening; (d) a plurality of third conduits, one end of each of said third conduits fixably mounted to the remaining opening of one of said T-joints, the other end of said third conduits being fixably mounted to at least one of said extinguishing tanks.
Claim 4
Independent Claim
203 words
An apparatus, comprising: (a) a plurality of gas cartridges, each of said gas cartridges containing a pressure influenced gas and a puncturable diaphragm to permit release of said gas; (b) a plurality of extinguishing tanks; (c) a plurality of cylinder-pistons, each of said cylinder-pistons slidably containing a piston having a piston head located in a first chamber of said cylinder-piston and a piston rod fixably mounted to said piston head and extending into a second chamber of said cylinder-piston, each of said cylinder-pistons being fixably mounted to an associated gas cartridge such that slidable movement of said piston can cause said piston rod to puncture said diaphragm of said associated gas cartridge; (d) first means for actuating said piston of one of said cylinder-piston to puncture said diaphragm of said associated gas cartridge; (e) second means for conducting said gas released from said gas cartridge associated with said one cylinder-piston to one extinguishing tank and to another of said cylinder-pistons, such that said gas can cause the piston of another gas cartridge to slidably move to cause the release of gas from said another gas cartridge; (f) third means for conducting said gas released from said another gas cartridge to another extinguishing tank.
Claim 5
Independent Claim
203 words
An apparatus, comprising: (a) a plurality of gas cartridges, each of said gas cartridges containing a pressure influenced gas and a puncturable diaphragm to permit release of said gas; (b) a plurality of extinguishing tanks; (c) a plurality of cylinder-pistons, each of said cylinder-pistons slidably containing a piston having a piston head located in a first chamber of said cylinder-piston and a piston rod fixably mounted to said piston head and extending into a second chamber of said cylinder-piston, each of said cylinder-pistons being fixably mounted to an associated gas cartridge such that slidable movement of said piston can cause said piston rod to puncture said diaphragm of said associated gas cartridge; (d) first means for actuating said piston of one of said cylinder-piston to puncture said diaphragm of said associated gas cartridge; (e) second means for conducting said gas released from said gas cartridge associated with said one cylinder-piston to one extinguishing tank and to another of said cylinder-pistons, such that said gas can cause the piston of another gas cartridge to slidably move to cause the release of gas from said another gas cartridge; (f) third means for conducting said gas released from said another gas cartridge to another extinguishing tank.
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) | 1983-09-30 | 1984-03-31 | 1984-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-30 | 1988-03-31 | 1988-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-30 | 1992-03-31 | 1992-09-30 | $7700.00 | Window Closed / Lapsed |