US3594084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monochromator apparatus having improved grating rotation means
Assignee: G K TURNER ASSOCIATES
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Filing: 1969-08-01
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Granted: 1971-07-20
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Expires: 1989-08-01
Abstract
Abstract A diffraction-grating-type monochromator apparatus having an improved apparatus for rotating the grating is described. The grating is fixedly mounted at the pivot of a follower arm which is pivoted by an arm bearing portion engaging the sloped surface of a wedge-shaped bearing member driven in a direction at an acute angle to the plane of the sloped surface. The wedge-shaped member is a solid wedge or a member in which the acute angle between the sloped surface and the direction of the drive is adjustable.
Inventors
- 👤 George K Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:46
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/02; G01J3/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
25 words
Monochromator apparatus as claimed in claim 1 including means for varying the acute angle between said base surface and said bearing surface of said wedge.
References Cited (Backward Citations)
US3098408A
Cited
US3433557A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |