US3889598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arming system
Assignee: United States Department of the Navy
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Filing: 1968-06-18
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Granted: 1975-06-17
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Expires: 1988-06-18
Abstract
Abstract A system having shallow depth capabilities for arming a submerged ordnance device independently of hydrostatic pressure, including a block having a cylinder therein; a piston having a radial bore therethrough slidably mounted in the block to form an expansible chamber in the inner extremity of the cylinder; an electrically energizable gas generating squib in fluid communication with the expansible chamber to increase the pressure therein; a port in the block providing fluid communication between the expansible chamber and the external environment; an explosive slug positioned within the piston in the radial bore; portions of an explosive train disposed within a pair of bores in the block on diametrically opposite sides of the cylinder; and releasable restraining pins holding the piston in a first position.
Inventors
- 👤 Kenneth I Belsley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:56
CPC Classifications
F; F42; F42C; F42C15/00; F42C15/18; F42C15/184; F42C15/28; F42C15/31; F42C3/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
199 words
An arming system comprising: a block member having a first bore therein and a second bore therein, said second bore opening from the exterior surface of said block member and extending into a first extremity of said first bore providing open fluid communication between said first bore and the external environment; an explosively laden piston member slidably positioned within said first bore in an initial position defining an expansible chamber at said first extremity of said first bore; pressure increasing means in fluid communication with said expansible chamber operable under conditions defined solely by said second bore in said expansible chamber being filled with a predetermined amount of ambient liquid for moving said piston member from said initial position to a predetermined second position; and means for restraining said piston member at its position of maximum movement including a retaining ring positioned within said first bore having an aperture therein and a shaft member fixed longitudinally to said piston member having a diameter slightly larger than said aperture, whereby when said piston member moves to said second position said aperture receives said shaft member providing a frictional fit thereby preventing said piston member from returning to said initial position.
Claim 2
Dependent Claim
199 words
An arming system comprising: a block member having a first bore therein and a second bore therein, said second bore opening from the exterior surface of said block member and extending into a first extremity of said first bore providing open fluid communication between said first bore and the external environment; an explosively laden piston member slidably positioned within said first bore in an initial position defining an expansible chamber at said first extremity of said first bore; pressure increasing means in fluid communication with said expansible chamber operable under conditions defined solely by said second bore in said expansible chamber being filled with a predetermined amount of ambient liquid for moving said piston member from said initial position to a predetermined second position; and means for restraining said piston member at its position of maximum movement including a retaining ring positioned within said first bore having an aperture therein and a shaft member fixed longitudinally to said piston member having a diameter slightly larger than said aperture, whereby when said piston member moves to said second position said aperture receives said shaft member providing a frictional fit thereby preventing said piston member from returning to said initial position.
Claim 3
Dependent Claim
144 words
An arming system comprising: a block member having a first bore therein and a second bore therein, said second bore opening from the exterior surface of said block member and extending into a first extremity of said first bore providing open fluid communication between said first bore and the external environment; an explosively laden piston member slidably positioned within said first bore in an initial position defining an expansible chamber at said first extremity of said first bore; and pressure increasing means in fluid communication with said expansible chamber operable under conditions defined solely by said second bore and said expansible chamber being filled with a predetermined amount of ambient liquid for moving said piston member from said initial position to a predetermined second position, said piston moving means including an electrically energizable gas generating squib positioned in fluid communication with said expansible chamber.
Claim 4
Dependent Claim
144 words
An arming system comprising: a block member having a first bore therein and a second bore therein, said second bore opening from the exterior surface of said block member and extending into a first extremity of said first bore providing open fluid communication between said first bore and the external environment; an explosively laden piston member slidably positioned within said first bore in an initial position defining an expansible chamber at said first extremity of said first bore; and pressure increasing means in fluid communication with said expansible chamber operable under conditions defined solely by said second bore and said expansible chamber being filled with a predetermined amount of ambient liquid for moving said piston member from said initial position to a predetermined second position, said piston moving means including an electrically energizable gas generating squib positioned in fluid communication with said expansible chamber.
Claim 5
Dependent Claim
152 words
An arming system comprising: a block member having a first bore therein and a second bore therein, said second bore opening from the exterior surface of said block member and extending into a first extremity of said first bore providing open fluid communication between said first bore and the external environment; an explosively laden piston member slidably positioned within said first bore in an initial position defining an expansible chamber at said first extremity of said first bore; pressure increasing means in fluid communication with said expansible chamber operable under conditions defined solely by said second bore and said expansible chamber being filled with a predetermined amount of ambient liquid for moving said piston member from said initial position to a predetermined second position; and detachable means for fluidly sealing off said second bore and said expansible chamber from the external environment comprising means for selectively restraining said piston member from movement.
Claim 6
Dependent Claim
152 words
An arming system comprising: a block member having a first bore therein and a second bore therein, said second bore opening from the exterior surface of said block member and extending into a first extremity of said first bore providing open fluid communication between said first bore and the external environment; an explosively laden piston member slidably positioned within said first bore in an initial position defining an expansible chamber at said first extremity of said first bore; pressure increasing means in fluid communication with said expansible chamber operable under conditions defined solely by said second bore and said expansible chamber being filled with a predetermined amount of ambient liquid for moving said piston member from said initial position to a predetermined second position; and detachable means for fluidly sealing off said second bore and said expansible chamber from the external environment comprising means for selectively restraining said piston member from movement.
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) | 1978-06-16 | 1978-12-16 | 1979-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-16 | 1982-12-16 | 1983-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-16 | 1986-12-16 | 1987-06-17 | $7700.00 | Window Closed / Lapsed |