US3701058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidic phase shifter
Assignee: Individual
•
Filing: 1971-06-03
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Granted: 1972-10-24
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Expires: 1991-06-03
Abstract
Abstract Apparatus including an expandable dielectric container and dielectric fluid therein disposed in a waveguide for propagating electromagnetic waves to change the phase thereof. The fluid may be introduced slowly or rapidly into the waveguide or may be continuously circulated through the waveguide to provide cooling.
Inventors
- 👤 Bob L Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:44
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/18; H01P1/182
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
60 words
A phase shifter for a waveguide for propagation of electric waves comprising: a uniformly expandable container of dielectric material for enclosing a dielectric fluid provided with longitudinally axised tapered edges oppositely extending in the direction of the propagation; and, means communicating with said container to monitor the volume of the fluid therein for control of the phase of the waves.
Claim 2
Dependent Claim
60 words
A phase shifter for a waveguide for propagation of electric waves comprising: a uniformly expandable container of dielectric material for enclosing a dielectric fluid provided with longitudinally axised tapered edges oppositely extending in the direction of the propagation; and, means communicating with said container to monitor the volume of the fluid therein for control of the phase of the waves.
Claim 3
Dependent Claim
24 words
A fluidic phase shifter as set forth in claim 1 wherein said container has a flexible dielectric bladder therein for receiving said dielectric fluid.
Claim 4
Dependent Claim
18 words
A fluidic phase shifter as set forth in claim 2 wherein said monitoring means comprises a fluidic computer.
Claim 5
Dependent Claim
40 words
A fluidic phase shifter as set forth in claim 3 wherein said monitoring means includes a pair of fluidic valves and a fluidic computer for continuous flow of the dielectric fluid through said container to provide cooling for said waveguide.
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) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |