Patent US3272929A successfully refreshed from Google Patents.
US3272929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Card reader switch with insulated cylindrical fluted portion and smaller concentric cylindrical contact protion
Assignee: Boeing Co
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Filing: 1964-09-02
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Granted: 1966-09-13
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Expires: 1984-09-02
Abstract
No abstract record available.
Inventors
- 👤 Emil A Hacker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:22
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
SENSING APPARATUS HAVING YIELDABLY BAISED SWITCHING MEANS, SAID MEANS COMPRISING IN COMBINATION: (A) RECIPROCATING CONTACT MEANS INCLUDING: (1) A CYLINDRICAL LONGITUDINALLY FLUTED ELECTRICAL INSULATING PORTION IN COMBINATION WITH (2) A SMALLER DIAMETER CYLINDRICAL ELECTRICAL CONDUCTING PORTION, SAID CYLINDER PORTIONS SHARING A COMMON LONGITUDINAL AXIS; AND (B) A SET OF ELECTRICAL CONTACT MEANS DISPOSED TO SLIDE ALONG THE SURFACE OF SAID RECIPROCATING CONTACT MEANS, SAID SET OF ELECTRICAL CONTACT MEANS COMPRISING AT LEAST TWO MEMBERS OF SUCH CONFIGURATION THAT UNDER OPEN CIRCUIT CONDITIONS ONLY A FIRST PORTION OF SAID AT LEAST TWO MEMBERS MAKES CONTACT WITH SAID CYLIN-
Claim 2
Dependent Claim
97 words
SENSING APPARATUS HAVING YIELDABLY BAISED SWITCHING MEANS, SAID MEANS COMPRISING IN COMBINATION: (A) RECIPROCATING CONTACT MEANS INCLUDING: (1) A CYLINDRICAL LONGITUDINALLY FLUTED ELECTRICAL INSULATING PORTION IN COMBINATION WITH (2) A SMALLER DIAMETER CYLINDRICAL ELECTRICAL CONDUCTING PORTION, SAID CYLINDER PORTIONS SHARING A COMMON LONGITUDINAL AXIS; AND (B) A SET OF ELECTRICAL CONTACT MEANS DISPOSED TO SLIDE ALONG THE SURFACE OF SAID RECIPROCATING CONTACT MEANS, SAID SET OF ELECTRICAL CONTACT MEANS COMPRISING AT LEAST TWO MEMBERS OF SUCH CONFIGURATION THAT UNDER OPEN CIRCUIT CONDITIONS ONLY A FIRST PORTION OF SAID AT LEAST TWO MEMBERS MAKES CONTACT WITH SAID CYLIN-
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) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |