US3189763A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switching systems for step-by-step transmission of angular quantities
Assignee: Computing Devices of Canada Ltd
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Filing: 1961-01-03
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Granted: 1965-06-15
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Expires: 1981-01-03
Abstract
No abstract record available.
Inventors
- 👤 Chown Bruce Farrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:42
CPC Classifications
H; H01; H01H; H01H19/00; H01H19/54; H01H19/60; H01H19/62; H01H9/00; H01H9/54
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
170 words
A TRANSMITTER FOR AN ANGULAR POSITION INFORMATION SYSTEM COMPRISING, A PLURALITY OF OUTPUT TERMINALS A FIRST GROUP OF A LIKE PLURALITY OF SINGLE POLE DOUBLE THROW SWITCHES HAVING A NORMALLY OPEN AND A NORMALLY CLOSED CONTACT AND HAVING THEIR POLES CONNECTED WITH SAID TERMINALS, A SECOND GROUP OF A LIKE PLURALITY OF SWITCHES HAVING A SINGLE POLE AND A NORMALLY OPEN CONTACT, SAID GROUPS COMPRISING A CONSECUTIVE SERIES AND BEING SUPPORTED IN SAID TRANSMITTER, MEANS CONNECTING THE NORMALLY CLOSED CONTACTS OF SWITCHES OF SAID FIRST GROUP WITH POLES OF CORRESPONDING SWITCHES OF SAID SECOND GROUP, A ROTATABLE SHAFT JOURNALLED IN SAID TRANSMITTER HAVING CAM ACTUATOR MEANS FOR SEQUENTIALLY ACTUATING SAID POLES OF SAID SWITCHES TO CLOSED CONTACT POSITION WITH THEIR NORMALLY OPEN CONTACTS AT PREDETERMINED ANGULAR POSITIONS OF SAID SHAFT, EACH POLE BEING ACTUATED CONSECUTIVELY ON ROTATION OF SAID SHAFT, MEANS ACTUATED CONSECUTIVELY ON ROTATION OF SAID SHAFT, SAID SWITCHES FOR BIASING WITH ONE POLARITY, AND MEANS CONNECTING THE NORMALLY OPEN CONTACTS OF REMAINING SWITCHES FOR BIASING WITH OPPOSITE POLARITY.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-14 | 1968-12-14 | 1969-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-14 | 1972-12-14 | 1973-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-14 | 1976-12-14 | 1977-06-15 | $7700.00 | Window Closed / Lapsed |