US3081440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phase shift apparatus
Assignee: Bendix Corp
•
Filing: 1959-09-28
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Granted: 1963-03-12
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Expires: 1979-09-28
Abstract
No abstract record available.
Inventors
- 👤 Carroll F Augustine
- 👤 Vincent J Mchenry
- 👤 Cheal James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:55
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/18; H01P1/183
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
A PHASE SHIFTER COMPRISING A PAIR OF PARALLEL, CLOSELY SPACED FLAT STRIPS, AN INPUT MEMBER, AND OUTPUT MEMBER, AND TWO SIDE MEMBERS, SAID INPUT MEMBER BEING CONNECTED TO ONLY ONE OF SAID STRIPS AT ONLY ONE END OF SAID STRIPS, SAID OUTPUT MEMBER BEING CONNECTED ONLY TO THE OTHER OF SAID STRIPS AT ONLY THE OTHER END OF SAID STRIPS, A SIDE MEMBER BEING CONNECTED TO EACH OF THE REMAINING FREE ENDS OF SAID STRIPS, SAID SIDE MEMBERS JUSTING MEANS FOR ADJUSTING THE EFFECTIVE LENGTH OF SAID SIDE MEMBERS TO EQUAL LENGTHS TO CHANGE THE PHASE OF THE SIGNAL GOING FROM SAID INPUT SAID OUTPUT MEMBER, SAID ADJUSTING MEANS COMPRISING A PIVOTED ARM ENGAGEABLE WITH EACH OF SAID SIDE MEMBERS TO SIMULTANEOUSLY VARY THE EFFECTIVE LENGTHS OF SAID SIDE MEMBERS, SAID STRIPS BEING EQUAL IN LENGTH TO APPROXIMATELY ONE QUARTER THE LENGTH OF A WAVELENGTH IN A PREDETERMINED PORTION OF THE FREQUENCY BAND FOR WHICH THE SHIFTER IS DESIGNED TO OPERATE.
Claim 2
Dependent Claim
161 words
A PHASE SHIFTER COMPRISING A PAIR OF PARALLEL, CLOSELY SPACED FLAT STRIPS, AN INPUT MEMBER, AND OUTPUT MEMBER, AND TWO SIDE MEMBERS, SAID INPUT MEMBER BEING CONNECTED TO ONLY ONE OF SAID STRIPS AT ONLY ONE END OF SAID STRIPS, SAID OUTPUT MEMBER BEING CONNECTED ONLY TO THE OTHER OF SAID STRIPS AT ONLY THE OTHER END OF SAID STRIPS, A SIDE MEMBER BEING CONNECTED TO EACH OF THE REMAINING FREE ENDS OF SAID STRIPS, SAID SIDE MEMBERS JUSTING MEANS FOR ADJUSTING THE EFFECTIVE LENGTH OF SAID SIDE MEMBERS TO EQUAL LENGTHS TO CHANGE THE PHASE OF THE SIGNAL GOING FROM SAID INPUT SAID OUTPUT MEMBER, SAID ADJUSTING MEANS COMPRISING A PIVOTED ARM ENGAGEABLE WITH EACH OF SAID SIDE MEMBERS TO SIMULTANEOUSLY VARY THE EFFECTIVE LENGTHS OF SAID SIDE MEMBERS, SAID STRIPS BEING EQUAL IN LENGTH TO APPROXIMATELY ONE QUARTER THE LENGTH OF A WAVELENGTH IN A PREDETERMINED PORTION OF THE FREQUENCY BAND FOR WHICH THE SHIFTER IS DESIGNED TO OPERATE.
References Cited (Backward Citations)
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US2794144A
Cited
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US2881433A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-11 | 1966-09-10 | 1967-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-11 | 1970-09-10 | 1971-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-11 | 1974-09-10 | 1975-03-12 | $7700.00 | Window Closed / Lapsed |