Patent US5675120A successfully refreshed from Google Patents.
US5675120A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Threaded bulkhead and locking ring assembly for underwater cable
Assignee: Nokia of America Corp
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Filing: 1995-05-09
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Granted: 1997-10-07
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Expires: 2015-05-09
Abstract
Abstract An enclosure for electronic circuits intended to operate at great depths beneath the sea in which the circuits are protected from stresses induced by the accumulation of mechanical tolerances during assembly, from shock during transportation, and from deformation of the enclosure at great pressure. The circuits being accessible in their final configuration during testing before insertion into the enclosure and sealing. Cable lengths within the enclosure are minimized to ensure reliability.
Inventors
- 👤 Thomas F. Craft
- 👤 Timothy A. Sochor
- 👤 Robert E. Servilio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:38
CPC Classifications
H; H05; H05K; H05K5/00; H05K5/06; H02; H02G; H02G15/00; H02G15/08; H02G15/10; H02G15/12; H02G15/14
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
139 words
An enclosure for holding at least one card tray which supports electronic circuits comprising: a pressure vessel having an inner surface and at least one seat; a bulkhead fitting within the inner surface of the pressure vessel having external threads; the bulkhead having at least one support for holding the at least one card tray; the bulkhead further having at least one penetration which permits communications between the electronic circuits and an external system; and a lock ring having inner threads, being adapted to mate with the external threads of the bulkhead and to contact the seat of the pressure vessel; wherein prior to insertion of the bulkhead within the pressure vessel, the card tray and the electronic circuits are connectable for communications with the external system and the at least one card tray is connectable to the bulkhead.
Claim 2
Dependent Claim
139 words
An enclosure for holding at least one card tray which supports electronic circuits comprising: a pressure vessel having an inner surface and at least one seat; a bulkhead fitting within the inner surface of the pressure vessel having external threads; the bulkhead having at least one support for holding the at least one card tray; the bulkhead further having at least one penetration which permits communications between the electronic circuits and an external system; and a lock ring having inner threads, being adapted to mate with the external threads of the bulkhead and to contact the seat of the pressure vessel; wherein prior to insertion of the bulkhead within the pressure vessel, the card tray and the electronic circuits are connectable for communications with the external system and the at least one card tray is connectable to the bulkhead.
Claim 3
Dependent Claim
21 words
The enclosure of claim 1 wherein the pressure vessel is a cylindrical annulus having an inner diameter and an outer diameter.
Claim 4
Dependent Claim
20 words
The enclosure of claim 1 further comprising compliant means interspersed between the bulkhead and the at least one card tray.
Claim 5
Dependent Claim
13 words
The enclosure of claim 3 wherein the compliant means is a rubber gasket.
Claim 6
Dependent Claim
12 words
The enclosure of claim 3 wherein the compliant means is a spring.
Claim 7
Dependent Claim
18 words
The enclosure of claim 1 wherein the pressure vessel, the lock ring, and the bulkhead are welded together.
Claim 8
Dependent Claim
244 words
An enclosure for holding at least one card tray which supports underwater electronic circuits comprising: a cylindrical pressure vessel, having an inner surface and a seat on each end, which surrounds the circuits; a first end plate, having at least one hole, being adapted to support said at least one card tray which supports the underwater electronic circuits; a first bulkhead, having a penetration for permitting communications between an external system and the electronic circuits, being adapted to mate with the seat on a first end of the pressure vessel, and having at least one blind tapped hole; a first screw adapted to mount the first end plate to the first bulkhead at the blind tapped hole; a second end plate being adapted to support said at least one card tray which supports the underwater electronic circuits; a second bulkhead, having external threads and a penetration for permitting communications between the external system and the electronic circuits, being adapted to fit within the inner surface of the pressure vessel; a spring adapted to fit between the second bulkhead and the second end plate so as to keep them separated; and a lock ring adapted to contact the seat located at a second end of the pressure vessel, having internal threads which mate with threads on the second bulkhead, wherein prior to insertion into the pressure vessel, the at least one card tray and the electronic circuits are connectable for communications with the external system.
Claim 9
Dependent Claim
244 words
An enclosure for holding at least one card tray which supports underwater electronic circuits comprising: a cylindrical pressure vessel, having an inner surface and a seat on each end, which surrounds the circuits; a first end plate, having at least one hole, being adapted to support said at least one card tray which supports the underwater electronic circuits; a first bulkhead, having a penetration for permitting communications between an external system and the electronic circuits, being adapted to mate with the seat on a first end of the pressure vessel, and having at least one blind tapped hole; a first screw adapted to mount the first end plate to the first bulkhead at the blind tapped hole; a second end plate being adapted to support said at least one card tray which supports the underwater electronic circuits; a second bulkhead, having external threads and a penetration for permitting communications between the external system and the electronic circuits, being adapted to fit within the inner surface of the pressure vessel; a spring adapted to fit between the second bulkhead and the second end plate so as to keep them separated; and a lock ring adapted to contact the seat located at a second end of the pressure vessel, having internal threads which mate with threads on the second bulkhead, wherein prior to insertion into the pressure vessel, the at least one card tray and the electronic circuits are connectable for communications with the external system.
Claim 10
Dependent Claim
15 words
The enclosure of claim 7 further comprising a clearance hole in the second end plate.
Claim 11
Dependent Claim
15 words
The enclosure of claim 7 further comprising a blind tapped hole in the second bulkhead.
Claim 12
Dependent Claim
34 words
The enclosure of claim 9 further comprising a second screw, having a head, a shank, and a threaded portion, which penetrates the second end plate and engages the tapped hole of the second bulkhead.
Claim 13
Dependent Claim
17 words
The enclosure of claim 7 wherein the second bulkhead, lock ring, and pressure vessel are welded together.
Claim 14
Dependent Claim
19 words
The enclosure of claim 7 wherein the second end plate fits within the inner surface of the pressure vessel.
Claim 15
Dependent Claim
12 words
The enclosure of claim 7 wherein the spring is a coil spring.
Claim 16
Dependent Claim
12 words
The enclosure of claim 7 wherein the spring is a leaf spring.
Claim 17
Dependent Claim
12 words
The enclosure of claim 7 wherein the spring is a disk spring.
Claim 18
Dependent Claim
276 words
An enclosure for holding at least one card tray which supports underwater electronic circuits comprising: a cylindrical pressure vessel, having an inner surface and a seat on each end, which surrounds the circuits; a first end plate, having at least one hole, for supporting the at least one card tray which supports the underwater electronic circuits; a first bulkhead, having a penetration for permitting communications between an external system and the electronic circuits, being adapted to mate with the seat on a first end of the pressure vessel, and having at least one blind tapped hole; a first screw adapted to mount the first end plate to the first bulkhead at the blind tapped hole; a second end plate, having at least one clearance hole, for supporting the at least one card tray which supports the underwater electronic circuits; a second bulkhead, having external threads and a penetration for permitting communications between said external system and the electronic circuits, being adapted to fit within the inner surface of the pressure vessel and having a blind tapped hole; a spring adapted to fit between the second bulkhead and the second end plate so as to keep them separated; a lock ring adapted to contact one of the seats on the pressure vessel, having internal threads which mate with threads on the second bulkhead; and a second screw, having a head, a shank, and a threaded portion, which penetrates the second end plate and engages the tapped hole of the second bulkhead, wherein prior to insertion into the pressure vessel, the at least one card tray and the electronic circuits are connectable for communications with the external system.
Claim 19
Dependent Claim
276 words
An enclosure for holding at least one card tray which supports underwater electronic circuits comprising: a cylindrical pressure vessel, having an inner surface and a seat on each end, which surrounds the circuits; a first end plate, having at least one hole, for supporting the at least one card tray which supports the underwater electronic circuits; a first bulkhead, having a penetration for permitting communications between an external system and the electronic circuits, being adapted to mate with the seat on a first end of the pressure vessel, and having at least one blind tapped hole; a first screw adapted to mount the first end plate to the first bulkhead at the blind tapped hole; a second end plate, having at least one clearance hole, for supporting the at least one card tray which supports the underwater electronic circuits; a second bulkhead, having external threads and a penetration for permitting communications between said external system and the electronic circuits, being adapted to fit within the inner surface of the pressure vessel and having a blind tapped hole; a spring adapted to fit between the second bulkhead and the second end plate so as to keep them separated; a lock ring adapted to contact one of the seats on the pressure vessel, having internal threads which mate with threads on the second bulkhead; and a second screw, having a head, a shank, and a threaded portion, which penetrates the second end plate and engages the tapped hole of the second bulkhead, wherein prior to insertion into the pressure vessel, the at least one card tray and the electronic circuits are connectable for communications with the external system.
Claim 20
Dependent Claim
12 words
The enclosure of claim 16 wherein the spring is a coil spring.
Claim 21
Dependent Claim
12 words
The enclosure of claim 16 wherein the spring is a leaf spring.
Claim 22
Dependent Claim
12 words
The enclosure of claim 16 wherein the spring is a disk spring.
Claim 23
Dependent Claim
170 words
An enclosure for holding at least one card tray which supports underwater electronic circuits comprising: a cylindrical pressure vessel, having an inner surface and a seat on each end, which surrounds the circuits; two end plates, each a at least one hole, for supporting the at least one card tray which supports the underwater electronic circuits and to fit inside the pressure vessel; two bulkheads, each having a penetration for permitting communications between an external system and the electronic circuits, being adapted to mate with the seats on the pressure vessel, each having at least one blind tapped hole; a spring adapted to fit between each of said bulkheads and end plates so as to keep them separated; and two lock rings adapted to contact one of the seats on the pressure vessel, having internal threads which mate with threads on the two bulkheads, wherein prior to insertion into the pressure vessel, the at least one card tray and the electronic circuits are connectable for communications with the external system.
Claim 24
Dependent Claim
170 words
An enclosure for holding at least one card tray which supports underwater electronic circuits comprising: a cylindrical pressure vessel, having an inner surface and a seat on each end, which surrounds the circuits; two end plates, each a at least one hole, for supporting the at least one card tray which supports the underwater electronic circuits and to fit inside the pressure vessel; two bulkheads, each having a penetration for permitting communications between an external system and the electronic circuits, being adapted to mate with the seats on the pressure vessel, each having at least one blind tapped hole; a spring adapted to fit between each of said bulkheads and end plates so as to keep them separated; and two lock rings adapted to contact one of the seats on the pressure vessel, having internal threads which mate with threads on the two bulkheads, wherein prior to insertion into the pressure vessel, the at least one card tray and the electronic circuits are connectable for communications with the external system.
Claim 25
Dependent Claim
16 words
The enclosure of claim 20 further comprising a clearance hole in each of said end plates.
Claim 26
Dependent Claim
14 words
The enclosure of claim 20 further comprising a tapped hole defined by each bulkhead.
Claim 27
Dependent Claim
34 words
The enclosure of claim 20 further comprising a screw, having a head, a shank, and a threaded portion, which penetrates an end plate and engages the tapped hole of one of the two bulkheads.
Claim 28
Dependent Claim
16 words
The enclosure of claim 20 wherein the bulkheads, lock rings, and pressure vessel are welded together.
Claim 29
Dependent Claim
12 words
The enclosure of claim 20 wherein the spring is a coil spring.
Claim 30
Dependent Claim
12 words
The enclosure of claim 20 wherein the spring is a leaf spring.
Claim 31
Dependent Claim
12 words
The enclosure of claim 20 wherein the spring is a disk spring.
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) | 2000-10-06 | 2001-04-07 | 2001-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-10-06 | 2005-04-07 | 2005-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-10-06 | 2009-04-07 | 2009-10-07 | $7700.00 | Window Closed / Lapsed |