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US4346404A
Expired / Lapsed
US
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Monitoring camera
Assignee: Individual
•
Filing: 1980-11-21
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Granted: 1982-08-24
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Expires: 2000-11-21
Abstract
Abstract A monitoring camera is installed in a wall of a submersible pressure vessel, such as a bathyscaphe. The camera includes a front portion having a front optic with a lens located at the interior of the vessel, and a rear portion. The lens sealingly covers the front portion and projects slightly into the interior of the vessel from its wall. A second lens spaced from the first lens is mounted in the front portion of the camera. These lenses are spaced from one another. A capillary channel is formed in the front portion, which channel extends from a space between the lenses toward outside the pressure vessel. The channel serves to permit helium eventually collected in said space to escape from the camera.
Inventors
- 👤 Rudolf Gantenbrink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:44
CPC Classifications
H; H04; H04N; H04N23/00; H04N23/50; H04N23/51
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
77 words
A monitoring camera for a submersible pressure vessel, particularly a bathyscaphe, which includes an interior and a wall surrounding the interior and having an inner side, the camera comprising a rear portion outside said pressure vessel and a front portion installed in an opening of said wall; and at least one lens located at the interior of said pressure vessel and sealingly covering said front portion, said lens projecting only slightly into said interior from said wall.
Claim 2
Dependent Claim
77 words
A monitoring camera for a submersible pressure vessel, particularly a bathyscaphe, which includes an interior and a wall surrounding the interior and having an inner side, the camera comprising a rear portion outside said pressure vessel and a front portion installed in an opening of said wall; and at least one lens located at the interior of said pressure vessel and sealingly covering said front portion, said lens projecting only slightly into said interior from said wall.
Claim 3
Dependent Claim
16 words
The camera of claim 1, wherein said rear portion is detachably connected to said front portion.
Claim 4
Dependent Claim
17 words
The camera of claim 2, wherein said front portion includes a cylindrical element extending through said opening.
Claim 5
Dependent Claim
39 words
The camera of claim 3, further including an optical system, having two parts, said first part including said one lens and being accommodated in said front portion, said second part being accommodated in said rear portion of the camera.
Claim 6
Dependent Claim
31 words
The camera of claim 4, wherein said first portion of said optical system is a front optic of a standard camera, said rear portion accommodating the remaining part of the camera.
Claim 7
Dependent Claim
13 words
The camera of claim 4, wherein said front optic is a wide-angle optic.
Claim 8
Dependent Claim
19 words
The camera of claim 6, wherein said rear portion is connected to said front portion by a bayonett joint.
Claim 9
Dependent Claim
15 words
The camera of claim 7, further including a second lens mounted in said cylindrical element.
Claim 10
Dependent Claim
20 words
The camera of claim 8, wherein said second lens being spaced from said one lens to define a space therebetween.
Claim 11
Dependent Claim
36 words
The camera of claim 9, further including a least one seal mounted in said cylindrical element to seal said one and second lenses and said space against a gas which may be penetrated into said space.
Claim 12
Dependent Claim
27 words
The camera of claim 1, wherein a capillary channel is formed in said cylindrical element, said channel extending from said space to outside of the pressure vessel.
Claim 13
Dependent Claim
17 words
The camera of claim 11, wherein said channel has an end which is toward said rear portion.
Claim 14
Dependent Claim
14 words
The camera of claim 12, further including an overpressure-operative valve connected to said end.
Claim 15
Dependent Claim
15 words
The camera of claim 12, further including a suction device mounted connected to said channel.
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) | 1985-08-23 | 1986-02-22 | 1986-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-08-23 | 1990-02-22 | 1990-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-08-23 | 1994-02-22 | 1994-08-24 | $7700.00 | Window Closed / Lapsed |