US4035816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Housing assembly for an underwater camera with a flash device
Assignee: Preussag AG
•
Filing: 1976-07-12
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Granted: 1977-07-12
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Expires: 1996-07-12
Abstract
Abstract An improved housing assembly for an underwater camera with a flash device is disclosed and includes a hollow cylindrical pressure housing. The hollow cylindrical pressure housing has a shell or wall including a window for the objective of the camera and has a pressure tight head, made of transparent material, in which the flash device is disposed.
Inventors
- 👤 Helmut Winnacker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:08
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/02; G03B17/08; G03B15/00; G03B15/02; G03B15/03; G03B15/04; G03B15/0405
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
76 words
An improved housing assembly for an underwater camera having a flash device which includes a flash lamp, the improved housing assembly comprising: a hollow cylindrical pressure housing having a cylindrical shell; a window formed in the cylindrical shell for the objective of the underwater camera; and a pressure tight head which is made of transparent material, which is connected with and closes an end of the cylindrical shell and in which the flash lamp is disposed.
Claim 2
Dependent Claim
76 words
An improved housing assembly for an underwater camera having a flash device which includes a flash lamp, the improved housing assembly comprising: a hollow cylindrical pressure housing having a cylindrical shell; a window formed in the cylindrical shell for the objective of the underwater camera; and a pressure tight head which is made of transparent material, which is connected with and closes an end of the cylindrical shell and in which the flash lamp is disposed.
Claim 3
Dependent Claim
50 words
The improved housing assembly for an underwater camera according to claim 1, characterized in that the head is a solid cylinder which is made of acrylic, which comprises a bore, which is open towards the interior of the hollow pressure housing (4) and in which the flash lamp is seated.
Claim 4
Dependent Claim
25 words
The improved housing assembly for an underwater camera according to claim 2, characterized in that the flash lamp 16 is arranged axially in the bore.
Claim 5
Dependent Claim
29 words
The improved housing assembly for an underwater camera according to claim 3, characterized in that a reflector pointing in the direction of the objective is provided in the bore.
Claim 6
Dependent Claim
38 words
The improved housing assembly for an underwater camera according to claim 2, characterized in that the head comprises a threaded part with which the head is screwed onto the end of the cylindrical shell of the pressure housing.
Claim 7
Dependent Claim
53 words
The improved housing assembly for an underwater camera according to claim 5, characterized in that the head is provided on its underside with a central threaded connector which is screwed into the end of the pressure housing and through which extends the bore; and in that the head is made of acrylic glass.
Claim 8
Dependent Claim
61 words
The improved housing assembly for an underwater camera according to claim 1, characterized in that the head comprises an annular flange which is drawn or extended downwardly and which has an internal thread and in that the end of the cylindrical shell of the pressure housing has an external thread, on which the head is screwed by means of the flange.
Claim 9
Dependent Claim
40 words
The improved housing assembly for an underwater camera according to claim 7, characterized in that an O-ring seal is arranged between the underside of the head and that ring surface of the pressure housing (4) which is facing the head.
Claim 10
Dependent Claim
27 words
The improved housing assembly for an underwater camera according to claim 8, characterized in that the O-ring seal lies in an annular groove in the ring surface.
Claim 11
Dependent Claim
22 words
The improved housing assembly for an underwater camera according to claim 9, characterized in that the head is made of acrylic glass.
References Cited (Backward Citations)
US3349680A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-07-11 | 1981-01-10 | 1981-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-11 | 1985-01-10 | 1985-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-11 | 1989-01-10 | 1989-07-12 | $7700.00 | Window Closed / Lapsed |