Patent US3900703A successfully refreshed from Google Patents.
US3900703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Training simulators for submarine periscopes
Assignee: Ferranti International PLC
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Filing: 1973-08-30
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Granted: 1975-08-19
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Expires: 1993-08-30
Abstract
Abstract A training simulator for a submarine periscope comprises an outwardly normal viewing station at eye-level mounted on a hollow support column from the floor. A hollow periscope tube, containing a television monitor, extends from the viewing station towards the floor within the support column. A false bulkhead and periscope tube extend to the ceiling of the room to complete the outward appearance of a periscope. The internal components of the viewing station are arranged so as to observe the screen of the television monitor, and the scene displayed thereon is shifted in accordance with rotation of the viewing station and operation of its controls.
Inventors
- 👤 John Edward Tickle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:20
CPC Classifications
G; G02; G02B; G02B23/00; G02B23/02; G02B23/08; G09; G09B; G09B9/00; G09B9/02; G09B9/06; G09B9/063
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
119 words
A training simulator for a submarine periscope located in a room having a floor and a ceiling and including a viewing station containing optical focussing and range finding apparatus, a hollow periscope tube in fixed relationship with, and extending downwardly from, the viewing station, a hollow support column fixed to the floor, extending between the floor and the viewing station and enclosing the periscope tube, bearing means arranged to support the periscope tube within the support column, said bearing means being arranged to permit rotation of the viewing station and periscope tube about the longitudinal axis of the support column, and a television monitor located within the periscope tube and arranged to provide a scene for the viewing station.
Claim 2
Dependent Claim
119 words
A training simulator for a submarine periscope located in a room having a floor and a ceiling and including a viewing station containing optical focussing and range finding apparatus, a hollow periscope tube in fixed relationship with, and extending downwardly from, the viewing station, a hollow support column fixed to the floor, extending between the floor and the viewing station and enclosing the periscope tube, bearing means arranged to support the periscope tube within the support column, said bearing means being arranged to permit rotation of the viewing station and periscope tube about the longitudinal axis of the support column, and a television monitor located within the periscope tube and arranged to provide a scene for the viewing station.
Claim 3
Dependent Claim
19 words
A training simulator as claimed in claim 1 in which the support column and periscope tube are coaxial cylinders.
Claim 4
Dependent Claim
36 words
A training simulator as claimed in claim 1 in which the bearing means includes an annular ring-bearing between an end face of the support column adjacent the viewing station and the base of the viewing station.
Claim 5
Dependent Claim
26 words
A training simulator as claimed in claim 3 in which the bearing means also includes a journal bearing between the periscope tube and the support column.
Claim 6
Dependent Claim
36 words
A training simulator as claimed in claim 1 in which there is further provided damping means against relative rotation between the periscope tube and the support column to simulate the inertial weight of a real periscope.
Claim 7
Dependent Claim
42 words
A training simulator as claimed in claim 5 in which the damping means comprises frictional engagement between two damping members, one of said members being fixed to the support column and the other of said members being movable by the periscope tube.
Claim 8
Dependent Claim
27 words
A training simulator as claimed in claim 6 in which said damping members are mounted adjacent the end of the periscope tube remote from the viewing station.
Claim 9
Dependent Claim
34 words
A training simulator as claimed in claim 1 in which the television monitor is located in the periscope tube as close as possible to the end of the tube remote from the viewing station.
Claim 10
Dependent Claim
34 words
A training simulator as claimed in claim 1 in which there is provided means responsive to rotation of the periscope tuBe within the support column to shift the scene on the television monitor laterally.
Claim 11
Dependent Claim
38 words
A training simulator as claimed in claim 1 including means to simulate tilting of a sighting head of a real periscope comprising means responsive to operation of tilt-control means to shift the scene on the television monitor vertically.
Claim 12
Dependent Claim
55 words
A training simulator as claimed in claim 1 wherein the range finding apparatus is of the type that combines light along two different paths and in which the relative difference in light path lengths is compensated for by means of a block of transparent material of suitable refractive index in one of the light paths.
Claim 13
Dependent Claim
24 words
A training simulator as claimed in claim 11 in which the transparent material comprises a block of glass placed in the longer light path.
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) | 1978-08-18 | 1979-02-17 | 1979-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-18 | 1983-02-17 | 1983-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-18 | 1987-02-17 | 1987-08-19 | $7700.00 | Window Closed / Lapsed |