Control means for controlling static gas pressures in support means for a reflector of an optical telescope
United States Patent 3154627
US Patent References:
Telescope construction
- - 1734284
Pressure transformer
- - 1966841
Valve systems for the control of fluid pressure
- - 2750952
High pressure shut-off valve
- - 2918072
Hydraulic regulator
- - 2940463
Telescope construction
- - 1734284
Pressure transformer
- - 1966841
Valve systems for the control of fluid pressure
- - 2750952
High pressure shut-off valve
- - 2918072
Hydraulic regulator
- - 2940463
Inventors:
Wallis, Douglas E.
Publication Date:
10/27/1964
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Export Citation:
Assignee:
PARSONS & CO SIR HOWARD G
Primary Class:
Other Classes:
359/849, 137/331, 137/115.130, 137/38
International Classes:
G02B7/182; G02B23/00
US Patent References:
| 2956761 | Self-levelling and weighing device |
Foreign References:
| FR987988A |