Patent US4123727A successfully refreshed from Google Patents.
US4123727A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Atomic standard with reduced size and weight
Assignee: Individual
•
Filing: 1978-01-19
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Granted: 1978-10-31
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Expires: 1998-01-19
Abstract
Abstract An improvement in an atomic or molecular frequency standard, more particularly, the atomic hydrogen maser, by the use of electrode structures circumferentially placed around the exterior of the atomic or molecular storage vessel and in a surface of revolution about the initial atomic hydrogen beam path. These electrodes allow maser action in maser devices of physical dimensions much smaller than those formerly possible.
Inventors
- 👤 Harry E. Peters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:21
CPC Classifications
H; H01; H01S; H01S1/00; H01S1/06; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/853
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
127 words
An improved atomic or molecular frequency standard device utilizing the storage of atoms or molecules for periods of time within a defined storage region of space inside a microwave cavity, wherein the improvement comprises: a. At least one electrode about and juxtapositioned to said storage region and within said microwave cavity; b. Said electrodes so configured and placed to enhance, concentrate, and orient the oscillating magnetic field in the storage region; c. Said electrodes being arrayed generally circumferentially around said storage region and in a surface of revolution about the axis of the atomic or molecular beam; d. Said electrodes, storage region and microwave cavity so proportioned to be tuned for operation at approximately the atomic or molecular quantum transition frequency of the atoms or molecules used.
Claim 2
Dependent Claim
127 words
An improved atomic or molecular frequency standard device utilizing the storage of atoms or molecules for periods of time within a defined storage region of space inside a microwave cavity, wherein the improvement comprises: a. At least one electrode about and juxtapositioned to said storage region and within said microwave cavity; b. Said electrodes so configured and placed to enhance, concentrate, and orient the oscillating magnetic field in the storage region; c. Said electrodes being arrayed generally circumferentially around said storage region and in a surface of revolution about the axis of the atomic or molecular beam; d. Said electrodes, storage region and microwave cavity so proportioned to be tuned for operation at approximately the atomic or molecular quantum transition frequency of the atoms or molecules used.
Claim 3
Dependent Claim
19 words
The invention of claim 1 wherein said electrodes comprise metal having high electrical conductivity, including silver, copper and aluminum.
Claim 4
Dependent Claim
32 words
The invention of claim 1 wherein the electrodes are attached to a quartz bulb storage region by reliable means, including vacuum metallization, metal paint or spray deposition, cementing, fusing, and mechanical attachment.
Claim 5
Dependent Claim
17 words
The invention of claim 1 wherein said electrodes comprise metals operated at low temperatures and exhibiting superconductivity.
Claim 6
Dependent Claim
36 words
The invention of claim 1 wherein said electrodes are plated with metals having high electrical conductivity, including those having inherent high electrical conductivity and those having high electrical conductivity induced by operating in a cryogenic environment.
Claim 7
Dependent Claim
18 words
The invention of claim 1 wherein said electrodes are physically supported from the microwave cavity through insulating supports.
References Cited (Backward Citations)
US3462705A
Cited
US3924200A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-10-30 | 1982-05-01 | 1982-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-30 | 1986-05-01 | 1986-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-30 | 1990-05-01 | 1990-10-31 | $7700.00 | Window Closed / Lapsed |