Patent US1489612A successfully refreshed from Google Patents.
US3714833A
Expired / Lapsed
US
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Test stand system for vacuum chambers
Assignee: National Aeronautics and Space Administration
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Filing: 1971-12-23
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Granted: 1973-02-06
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Expires: 1991-12-23
Abstract
Abstract A test stand system for supporting test items within a vacuum chamber comprising a frame adapted to conform to the inside of the vacuum chamber and supporting a central vertical shaft which shaft is rotatable on bearings located at each end thereof. The shaft is rotated through a drive that is manually actuated externally of the vacuum chamber. A plurality of vertically spaced plates are adjustable fixed to the vertical shaft for supporting various test ''''setups'''' as required. The test items may be rotated during a test without disturbing the vacuum.
Inventors
- 👤 D Newman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:11
CPC Classifications
B; B01; B01L; B01L1/00; B01L1/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
52 words
A test stand system for vacuum chambers comprising: a frame located within said vacuum chamber; said frame supporting a rotatable shaft; a plurality of plates releasably secured to and spaced longitudinally of said shaft; drive means for rotating said shaft; means located outside of said vacuum chamber for actuating said drive means.
Claim 2
Dependent Claim
52 words
A test stand system for vacuum chambers comprising: a frame located within said vacuum chamber; said frame supporting a rotatable shaft; a plurality of plates releasably secured to and spaced longitudinally of said shaft; drive means for rotating said shaft; means located outside of said vacuum chamber for actuating said drive means.
Claim 3
Dependent Claim
52 words
A test stand system for vacuum chambers comprising: a frame located within said vacuum chamber; said frame supporting a rotatable shaft; a plurality of plates releasably secured to and spaced longitudinally of said shaft; drive means for rotating said shaft; means located outside of said vacuum chamber for actuating said drive means.
Claim 4
Dependent Claim
52 words
A test stand system for vacuum chambers comprising: a frame located within said vacuum chamber; said frame supporting a rotatable shaft; a plurality of plates releasably secured to and spaced longitudinally of said shaft; drive means for rotating said shaft; means located outside of said vacuum chamber for actuating said drive means.
Claim 5
Dependent Claim
61 words
The invention as defined in claim 1 wherein said vacuum chamber comprises a bell jar, said frame comprising a plurality of frame elements defining a space substantially corresponding to the space enclosed by said bell jar, said rotatable shaft being disposed substantially along the longitudinal axis of said bell jar, said shaft passing through the center of each of said plates.
Claim 6
Dependent Claim
51 words
The invention as defined in claim 2 wherein said drive means comprises a driven gear fixed on said shaft near one end thereof, a rod extending from the vicinity of said driven gear to the outside of said vacuum chamber, said rod having a driving gear thereon engaging said driven gear.
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) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |