US3078356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sampling switch
Assignee: SCHAEVITZ ENGINEERING
•
Filing: 1960-07-20
•
Granted: 1963-02-19
•
Expires: 1980-07-20
Abstract
No abstract record available.
Inventors
- 👤 Friedman Milton
- 👤 Irving P Magasiny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:11
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/004
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A SWITCHING DEVICE COMPRISING A BRUSH HOLDER, A PLURALITY OF BRUSHES DISPOSED WITHIN SAID BRUSH HOLDER, A CYLINDRICAL MEMBER MOVABLE WITH RESPECT TO SAID BRUSH HOLDER, A PLURALITY OF SEGMENTED CONTACTS EXTENDING CIRCUMFERENTIALLY ABOUT THE PERIPHERY OF SAID CYLINDRICAL MEMBER, MEANS FOR ELECTRICALLY CONNECTING SAID PLURALITY OF CONTACTS TO EACH OTHER, SAID BRUSHES AND CONTACTS EXTENDING ALONG THE LENGTH OF SAID CYLINDRICAL MEMBER AND BEING ALIGNED WITH RESPECT TO EACH OTHER SO THAT ONE BRUSH ENGAGES A CORRESPONDING CONTACT WHEN SAID CYLINDRICAL MEMBER IS MOVED, MEANS FOR MOVING SAID CYLINDRICAL MEMBER TO CAUSE SAID CONTACTS TO SEQUENTIALLY ENGAGE SAID BRUSHES, SAID PLURALITY OF CONTACTS AND SAID PLURALITY OF BRUSHES BEING ANGULARLY DISPOSED WITH RESPECT TO EACH OTHER WHEREBY ONLY ONE OF SAID BRUSHES ENGAGES ONE OF SAID CONTACTS AT ONE TIME FOR EACH REVOLUTION OF SAID CYLINDRICAL MEMBER.
Claim 2
Dependent Claim
138 words
A SWITCHING DEVICE COMPRISING A BRUSH HOLDER, A PLURALITY OF BRUSHES DISPOSED WITHIN SAID BRUSH HOLDER, A CYLINDRICAL MEMBER MOVABLE WITH RESPECT TO SAID BRUSH HOLDER, A PLURALITY OF SEGMENTED CONTACTS EXTENDING CIRCUMFERENTIALLY ABOUT THE PERIPHERY OF SAID CYLINDRICAL MEMBER, MEANS FOR ELECTRICALLY CONNECTING SAID PLURALITY OF CONTACTS TO EACH OTHER, SAID BRUSHES AND CONTACTS EXTENDING ALONG THE LENGTH OF SAID CYLINDRICAL MEMBER AND BEING ALIGNED WITH RESPECT TO EACH OTHER SO THAT ONE BRUSH ENGAGES A CORRESPONDING CONTACT WHEN SAID CYLINDRICAL MEMBER IS MOVED, MEANS FOR MOVING SAID CYLINDRICAL MEMBER TO CAUSE SAID CONTACTS TO SEQUENTIALLY ENGAGE SAID BRUSHES, SAID PLURALITY OF CONTACTS AND SAID PLURALITY OF BRUSHES BEING ANGULARLY DISPOSED WITH RESPECT TO EACH OTHER WHEREBY ONLY ONE OF SAID BRUSHES ENGAGES ONE OF SAID CONTACTS AT ONE TIME FOR EACH REVOLUTION OF SAID CYLINDRICAL MEMBER.
References Cited (Backward Citations)
US1311437A
Cited
US1731513A
Cited
US685960A
Cited
US1110676A
Cited
US1343141A
Cited
FR750188A
Cited
US2167750A
Cited
US2496021A
Cited
US2852628A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-18 | 1966-08-20 | 1967-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-18 | 1970-08-20 | 1971-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-18 | 1974-08-20 | 1975-02-19 | $7700.00 | Window Closed / Lapsed |