Patent US3294932A successfully refreshed from Google Patents.
US3294932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wiping contact switch
Assignee: AT&T Inc
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Filing: 1965-05-17
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Granted: 1966-12-27
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Expires: 1985-05-17
Abstract
No abstract record available.
Inventors
- 👤 James E Barlow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:42
CPC Classifications
H; H01; H01H; H01H23/00; H01H23/02; H01H23/12; H01H23/16; H01H23/168; H01H1/00; H01H1/12; H01H1/14; H01H1/18; H01H1/58; H01H1/5833
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
A SWITCH COMPRISING: A CONTACT ARM; A PAIR OF PROJECTIONS ON SAID CONTACT ARM, EACH PROJECTION EXTENDING FROM OPPOSITE SIDES OF SAID CONTACT ARM; A CRADLE HAVING A PAIR OF CONTACT SURFACES THEREON, EACH FOR SUPPORTING ONE OF SAID PROJECTIONS, RESPECTIVELY, SAID CRADLE INCLUDING MEANS FOR ALLOWING ARCUATE MOVEMENT OF SAID CONTACT ARM IN FIRST AND SECOND DIRECTIONS, SAID FIRST DIRECTION OF ARCUATE MOVEMENT BEING ARCUATE ABOUT AN AXIS THROUGH SAID PROJECTIONS AND TRANSVERSE TO THE ARM, AND SAID SECOND DIRECTION HAVING A COMPONENT OF DIRECTION PERPENDICULAR TO SAID FIRST DIRECTION; A CONTACT SURFACE ON SAID CONTACT ARM AT AN ACUTE ANGLE TO SAID FIRST DIRECTION OF ARCUATE MOVEMENT AND PARALLEL TO SAID SECOND DIRECTION OF ARCUATE MOVEMENT; A STATIONARY CONTACT; SAID STATIONARY CONTACT INCLUDING CAMMING MEANS FOR MOVING SAID CONTACT ARM IN SAID SECOND DIRECTION; AND MEANS FOR MOVING ARCUATELY SAID ARM IN SAID FIRST DIRECTION TO ENGAGE SAID ARM CONTACT SURFACE WITH SAID STATIONARY CONTACT CAMMING MEANS TO WIPE SAID ARM CONTACT SURFACE ON SAID STATIONARY CONTACT.
Claim 2
Dependent Claim
169 words
A SWITCH COMPRISING: A CONTACT ARM; A PAIR OF PROJECTIONS ON SAID CONTACT ARM, EACH PROJECTION EXTENDING FROM OPPOSITE SIDES OF SAID CONTACT ARM; A CRADLE HAVING A PAIR OF CONTACT SURFACES THEREON, EACH FOR SUPPORTING ONE OF SAID PROJECTIONS, RESPECTIVELY, SAID CRADLE INCLUDING MEANS FOR ALLOWING ARCUATE MOVEMENT OF SAID CONTACT ARM IN FIRST AND SECOND DIRECTIONS, SAID FIRST DIRECTION OF ARCUATE MOVEMENT BEING ARCUATE ABOUT AN AXIS THROUGH SAID PROJECTIONS AND TRANSVERSE TO THE ARM, AND SAID SECOND DIRECTION HAVING A COMPONENT OF DIRECTION PERPENDICULAR TO SAID FIRST DIRECTION; A CONTACT SURFACE ON SAID CONTACT ARM AT AN ACUTE ANGLE TO SAID FIRST DIRECTION OF ARCUATE MOVEMENT AND PARALLEL TO SAID SECOND DIRECTION OF ARCUATE MOVEMENT; A STATIONARY CONTACT; SAID STATIONARY CONTACT INCLUDING CAMMING MEANS FOR MOVING SAID CONTACT ARM IN SAID SECOND DIRECTION; AND MEANS FOR MOVING ARCUATELY SAID ARM IN SAID FIRST DIRECTION TO ENGAGE SAID ARM CONTACT SURFACE WITH SAID STATIONARY CONTACT CAMMING MEANS TO WIPE SAID ARM CONTACT SURFACE ON SAID STATIONARY CONTACT.
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) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |